Formalize CPS case study for optimization

26 files changed, 11313 insertions, 0 deletions

diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/.gitignore b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/.gitignore
new file mode 100644
index 00000000..bd8f7d9f
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/.gitignore
@@ -0,0 +1,16 @@
+/.CpsApplications.java._trace
+/.CpsQueries.java._trace
+/.CpsHosts.java._trace
+/.TotalMemory.java._trace
+/.TotalHdd.java._trace
+/.AvailableMemory.java._trace
+/.AvailableHdd.java._trace
+/.AllocationWithoutResourceRequirement.java._trace
+/.NotEnoughAvailableMemory.java._trace
+/.NotEnoughAvailableHdd.java._trace
+/.InstanceDoesNotSatisfyRequirement.java._trace
+/.RequirementNotSatisfied.java._trace
+/.AverageFreeMemoryMetric.java._trace
+/.AverageFreeHddMetric.java._trace
+/.CostMetric.java._trace
+/.CpsCost.java._trace
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AllocationWithoutResourceRequirement.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AllocationWithoutResourceRequirement.java
new file mode 100644
index 00000000..be7488b6
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AllocationWithoutResourceRequirement.java
@@ -0,0 +1,717 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity = "error", key = {Host, App},
+ *              message = "Application instance must be allocated to a supported host type.")
+ *         pattern allocationWithoutResourceRequirement(Host : HostInstance, App : ApplicationInstance) {
+ *              ApplicationInstance.allocatedTo(App, Host);
+ *              neg find resourceRequirement(Host, App, _);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AllocationWithoutResourceRequirement extends BaseGeneratedEMFQuerySpecification<AllocationWithoutResourceRequirement.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.allocationWithoutResourceRequirement pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private ApplicationInstance fApp;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "App");
+    
+    private Match(final HostInstance pHost, final ApplicationInstance pApp) {
+      this.fHost = pHost;
+      this.fApp = pApp;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("App".equals(parameterName)) return this.fApp;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public ApplicationInstance getApp() {
+      return this.fApp;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("App".equals(parameterName) ) {
+          this.fApp = (ApplicationInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setApp(final ApplicationInstance pApp) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fApp = pApp;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.allocationWithoutResourceRequirement";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AllocationWithoutResourceRequirement.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fApp};
+    }
+    
+    @Override
+    public AllocationWithoutResourceRequirement.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fApp) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"App\"=" + prettyPrintValue(fApp));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fApp);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AllocationWithoutResourceRequirement.Match)) {
+          AllocationWithoutResourceRequirement.Match other = (AllocationWithoutResourceRequirement.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fApp, other.fApp);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public AllocationWithoutResourceRequirement specification() {
+      return AllocationWithoutResourceRequirement.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static AllocationWithoutResourceRequirement.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AllocationWithoutResourceRequirement.Match newMutableMatch(final HostInstance pHost, final ApplicationInstance pApp) {
+      return new Mutable(pHost, pApp);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AllocationWithoutResourceRequirement.Match newMatch(final HostInstance pHost, final ApplicationInstance pApp) {
+      return new Immutable(pHost, pApp);
+    }
+    
+    private static final class Mutable extends AllocationWithoutResourceRequirement.Match {
+      Mutable(final HostInstance pHost, final ApplicationInstance pApp) {
+        super(pHost, pApp);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AllocationWithoutResourceRequirement.Match {
+      Immutable(final HostInstance pHost, final ApplicationInstance pApp) {
+        super(pHost, pApp);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.allocationWithoutResourceRequirement pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity = "error", key = {Host, App},
+   *    message = "Application instance must be allocated to a supported host type.")
+   * pattern allocationWithoutResourceRequirement(Host : HostInstance, App : ApplicationInstance) {
+   *    ApplicationInstance.allocatedTo(App, Host);
+   *    neg find resourceRequirement(Host, App, _);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AllocationWithoutResourceRequirement
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AllocationWithoutResourceRequirement.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static AllocationWithoutResourceRequirement.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static AllocationWithoutResourceRequirement.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_APP = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AllocationWithoutResourceRequirement.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AllocationWithoutResourceRequirement.Match> getAllMatches(final HostInstance pHost, final ApplicationInstance pApp) {
+      return rawStreamAllMatches(new Object[]{pHost, pApp}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AllocationWithoutResourceRequirement.Match> streamAllMatches(final HostInstance pHost, final ApplicationInstance pApp) {
+      return rawStreamAllMatches(new Object[]{pHost, pApp});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AllocationWithoutResourceRequirement.Match> getOneArbitraryMatch(final HostInstance pHost, final ApplicationInstance pApp) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pApp});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final ApplicationInstance pApp) {
+      return rawHasMatch(new Object[]{pHost, pApp});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final ApplicationInstance pApp) {
+      return rawCountMatches(new Object[]{pHost, pApp});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final ApplicationInstance pApp, final Consumer<? super AllocationWithoutResourceRequirement.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pApp}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AllocationWithoutResourceRequirement.Match newMatch(final HostInstance pHost, final ApplicationInstance pApp) {
+      return AllocationWithoutResourceRequirement.Match.newMatch(pHost, pApp);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final AllocationWithoutResourceRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final ApplicationInstance pApp) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pApp});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final AllocationWithoutResourceRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final ApplicationInstance pApp) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pApp}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<ApplicationInstance> rawStreamAllValuesOfApp(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_APP, parameters).map(ApplicationInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp() {
+      return rawStreamAllValuesOfApp(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp() {
+      return rawStreamAllValuesOfApp(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp(final AllocationWithoutResourceRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfApp(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp(final HostInstance pHost) {
+      return rawStreamAllValuesOfApp(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp(final AllocationWithoutResourceRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfApp(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp(final HostInstance pHost) {
+      return rawStreamAllValuesOfApp(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected AllocationWithoutResourceRequirement.Match tupleToMatch(final Tuple t) {
+      try {
+          return AllocationWithoutResourceRequirement.Match.newMatch((HostInstance) t.get(POSITION_HOST), (ApplicationInstance) t.get(POSITION_APP));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AllocationWithoutResourceRequirement.Match arrayToMatch(final Object[] match) {
+      try {
+          return AllocationWithoutResourceRequirement.Match.newMatch((HostInstance) match[POSITION_HOST], (ApplicationInstance) match[POSITION_APP]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AllocationWithoutResourceRequirement.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AllocationWithoutResourceRequirement.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (ApplicationInstance) match[POSITION_APP]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<AllocationWithoutResourceRequirement.Matcher> querySpecification() {
+      return AllocationWithoutResourceRequirement.instance();
+    }
+  }
+  
+  private AllocationWithoutResourceRequirement() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AllocationWithoutResourceRequirement instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AllocationWithoutResourceRequirement.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AllocationWithoutResourceRequirement.Matcher.on(engine);
+  }
+  
+  @Override
+  public AllocationWithoutResourceRequirement.Matcher instantiate() {
+    return AllocationWithoutResourceRequirement.Matcher.create();
+  }
+  
+  @Override
+  public AllocationWithoutResourceRequirement.Match newEmptyMatch() {
+    return AllocationWithoutResourceRequirement.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AllocationWithoutResourceRequirement.Match newMatch(final Object... parameters) {
+    return AllocationWithoutResourceRequirement.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement (visibility: PUBLIC, simpleName: AllocationWithoutResourceRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement (visibility: PUBLIC, simpleName: AllocationWithoutResourceRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AllocationWithoutResourceRequirement INSTANCE = new AllocationWithoutResourceRequirement();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AllocationWithoutResourceRequirement.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_App);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.allocationWithoutResourceRequirement";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","App");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_App, parameter_App)
+          ));
+          //    ApplicationInstance.allocatedTo(App, Host)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationInstance", "allocatedTo")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new Equality(body, var__virtual_0_, var_Host);
+          //    neg find resourceRequirement(Host, App, _)
+          new NegativePatternCall(body, Tuples.flatTupleOf(var_Host, var_App, var___0_), ResourceRequirement.instance().getInternalQueryRepresentation());
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("Host"), 
+                              new ParameterReference("App")
+                              }));
+          annotation.addAttribute("message", "Application instance must be allocated to a supported host type.");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableHdd.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableHdd.java
new file mode 100644
index 00000000..22821c4a
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableHdd.java
@@ -0,0 +1,743 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.sum;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "availableHdd")
+ *         pattern availableHdd(Host : HostInstance, Hdd : java Integer) {
+ *              find totalHdd(Host, TotalHdd);
+ *              RequiredHdd == sum find hddRequirement(Host, _, #_);
+ *              Hdd == eval(TotalHdd - RequiredHdd);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AvailableHdd extends BaseGeneratedEMFQuerySpecification<AvailableHdd.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableHdd pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private Integer fHdd;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "Hdd");
+    
+    private Match(final HostInstance pHost, final Integer pHdd) {
+      this.fHost = pHost;
+      this.fHdd = pHdd;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("Hdd".equals(parameterName)) return this.fHdd;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public Integer getHdd() {
+      return this.fHdd;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("Hdd".equals(parameterName) ) {
+          this.fHdd = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setHdd(final Integer pHdd) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHdd = pHdd;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableHdd";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AvailableHdd.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fHdd};
+    }
+    
+    @Override
+    public AvailableHdd.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fHdd) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"Hdd\"=" + prettyPrintValue(fHdd));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fHdd);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AvailableHdd.Match)) {
+          AvailableHdd.Match other = (AvailableHdd.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fHdd, other.fHdd);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public AvailableHdd specification() {
+      return AvailableHdd.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static AvailableHdd.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AvailableHdd.Match newMutableMatch(final HostInstance pHost, final Integer pHdd) {
+      return new Mutable(pHost, pHdd);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AvailableHdd.Match newMatch(final HostInstance pHost, final Integer pHdd) {
+      return new Immutable(pHost, pHdd);
+    }
+    
+    private static final class Mutable extends AvailableHdd.Match {
+      Mutable(final HostInstance pHost, final Integer pHdd) {
+        super(pHost, pHdd);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AvailableHdd.Match {
+      Immutable(final HostInstance pHost, final Integer pHdd) {
+        super(pHost, pHdd);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableHdd pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "availableHdd")
+   * pattern availableHdd(Host : HostInstance, Hdd : java Integer) {
+   *    find totalHdd(Host, TotalHdd);
+   *    RequiredHdd == sum find hddRequirement(Host, _, #_);
+   *    Hdd == eval(TotalHdd - RequiredHdd);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AvailableHdd
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AvailableHdd.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static AvailableHdd.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static AvailableHdd.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_HDD = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AvailableHdd.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AvailableHdd.Match> getAllMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawStreamAllMatches(new Object[]{pHost, pHdd}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AvailableHdd.Match> streamAllMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawStreamAllMatches(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AvailableHdd.Match> getOneArbitraryMatch(final HostInstance pHost, final Integer pHdd) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final Integer pHdd) {
+      return rawHasMatch(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawCountMatches(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Integer pHdd, final Consumer<? super AvailableHdd.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pHdd}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AvailableHdd.Match newMatch(final HostInstance pHost, final Integer pHdd) {
+      return AvailableHdd.Match.newMatch(pHost, pHdd);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final AvailableHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final Integer pHdd) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pHdd});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final AvailableHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final Integer pHdd) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pHdd}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfHdd(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HDD, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd() {
+      return rawStreamAllValuesOfHdd(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd() {
+      return rawStreamAllValuesOfHdd(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd(final AvailableHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHdd(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd(final HostInstance pHost) {
+      return rawStreamAllValuesOfHdd(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd(final AvailableHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHdd(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd(final HostInstance pHost) {
+      return rawStreamAllValuesOfHdd(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected AvailableHdd.Match tupleToMatch(final Tuple t) {
+      try {
+          return AvailableHdd.Match.newMatch((HostInstance) t.get(POSITION_HOST), (Integer) t.get(POSITION_HDD));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableHdd.Match arrayToMatch(final Object[] match) {
+      try {
+          return AvailableHdd.Match.newMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_HDD]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableHdd.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AvailableHdd.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_HDD]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<AvailableHdd.Matcher> querySpecification() {
+      return AvailableHdd.instance();
+    }
+  }
+  
+  private AvailableHdd() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AvailableHdd instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AvailableHdd.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AvailableHdd.Matcher.on(engine);
+  }
+  
+  @Override
+  public AvailableHdd.Matcher instantiate() {
+    return AvailableHdd.Matcher.create();
+  }
+  
+  @Override
+  public AvailableHdd.Match newEmptyMatch() {
+    return AvailableHdd.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AvailableHdd.Match newMatch(final Object... parameters) {
+    return AvailableHdd.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd (visibility: PUBLIC, simpleName: AvailableHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd (visibility: PUBLIC, simpleName: AvailableHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AvailableHdd INSTANCE = new AvailableHdd();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AvailableHdd.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Hdd = new PParameter("Hdd", "java.lang.Integer", new JavaTransitiveInstancesKey(java.lang.Integer.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Hdd);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableHdd";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Hdd");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Hdd = body.getOrCreateVariableByName("Hdd");
+          PVariable var_TotalHdd = body.getOrCreateVariableByName("TotalHdd");
+          PVariable var_RequiredHdd = body.getOrCreateVariableByName("RequiredHdd");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Hdd), new JavaTransitiveInstancesKey(java.lang.Integer.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Hdd, parameter_Hdd)
+          ));
+          //    find totalHdd(Host, TotalHdd)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_TotalHdd), TotalHdd.instance().getInternalQueryRepresentation());
+          //    RequiredHdd == sum find hddRequirement(Host, _, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new sum().getAggregatorLogic(Integer.class), body, Tuples.flatTupleOf(var_Host, var___0_, var___1_), HddRequirement.instance().getInternalQueryRepresentation(), var__virtual_0_, 2);
+          new Equality(body, var_RequiredHdd, var__virtual_0_);
+          //    Hdd == eval(TotalHdd - RequiredHdd)
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern availableHdd";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("RequiredHdd", "TotalHdd");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer RequiredHdd = (Integer) provider.getValue("RequiredHdd");
+                  Integer TotalHdd = (Integer) provider.getValue("TotalHdd");
+                  return evaluateExpression_1_1(RequiredHdd, TotalHdd);
+              }
+          },  var__virtual_1_ ); 
+          new Equality(body, var_Hdd, var__virtual_1_);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "availableHdd");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static int evaluateExpression_1_1(final Integer RequiredHdd, final Integer TotalHdd) {
+    return ((TotalHdd).intValue() - (RequiredHdd).intValue());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java
new file mode 100644
index 00000000..930a24ba
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java
@@ -0,0 +1,743 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.sum;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "availableMemory")
+ *         pattern availableMemory(Host : HostInstance, Memory : java Integer) {
+ *              find totalMemory(Host, TotalMemory);
+ *              RequiredMemory == sum find memoryRequirement(Host, _, #_);
+ *              Memory == eval(TotalMemory - RequiredMemory);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AvailableMemory extends BaseGeneratedEMFQuerySpecification<AvailableMemory.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private Integer fMemory;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "Memory");
+    
+    private Match(final HostInstance pHost, final Integer pMemory) {
+      this.fHost = pHost;
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("Memory".equals(parameterName)) return this.fMemory;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public Integer getMemory() {
+      return this.fMemory;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("Memory".equals(parameterName) ) {
+          this.fMemory = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setMemory(final Integer pMemory) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AvailableMemory.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fMemory};
+    }
+    
+    @Override
+    public AvailableMemory.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fMemory) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"Memory\"=" + prettyPrintValue(fMemory));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fMemory);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AvailableMemory.Match)) {
+          AvailableMemory.Match other = (AvailableMemory.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fMemory, other.fMemory);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public AvailableMemory specification() {
+      return AvailableMemory.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static AvailableMemory.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AvailableMemory.Match newMutableMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Mutable(pHost, pMemory);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AvailableMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Immutable(pHost, pMemory);
+    }
+    
+    private static final class Mutable extends AvailableMemory.Match {
+      Mutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AvailableMemory.Match {
+      Immutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "availableMemory")
+   * pattern availableMemory(Host : HostInstance, Memory : java Integer) {
+   *    find totalMemory(Host, TotalMemory);
+   *    RequiredMemory == sum find memoryRequirement(Host, _, #_);
+   *    Memory == eval(TotalMemory - RequiredMemory);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AvailableMemory
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AvailableMemory.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static AvailableMemory.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static AvailableMemory.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_MEMORY = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AvailableMemory.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AvailableMemory.Match> getAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AvailableMemory.Match> streamAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AvailableMemory.Match> getOneArbitraryMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawHasMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawCountMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Integer pMemory, final Consumer<? super AvailableMemory.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pMemory}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AvailableMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return AvailableMemory.Match.newMatch(pHost, pMemory);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfMemory(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_MEMORY, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected AvailableMemory.Match tupleToMatch(final Tuple t) {
+      try {
+          return AvailableMemory.Match.newMatch((HostInstance) t.get(POSITION_HOST), (Integer) t.get(POSITION_MEMORY));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableMemory.Match arrayToMatch(final Object[] match) {
+      try {
+          return AvailableMemory.Match.newMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableMemory.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AvailableMemory.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<AvailableMemory.Matcher> querySpecification() {
+      return AvailableMemory.instance();
+    }
+  }
+  
+  private AvailableMemory() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AvailableMemory instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AvailableMemory.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AvailableMemory.Matcher.on(engine);
+  }
+  
+  @Override
+  public AvailableMemory.Matcher instantiate() {
+    return AvailableMemory.Matcher.create();
+  }
+  
+  @Override
+  public AvailableMemory.Match newEmptyMatch() {
+    return AvailableMemory.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AvailableMemory.Match newMatch(final Object... parameters) {
+    return AvailableMemory.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory (visibility: PUBLIC, simpleName: AvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory (visibility: PUBLIC, simpleName: AvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AvailableMemory INSTANCE = new AvailableMemory();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AvailableMemory.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Memory = new PParameter("Memory", "java.lang.Integer", new JavaTransitiveInstancesKey(java.lang.Integer.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Memory);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Memory");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Memory = body.getOrCreateVariableByName("Memory");
+          PVariable var_TotalMemory = body.getOrCreateVariableByName("TotalMemory");
+          PVariable var_RequiredMemory = body.getOrCreateVariableByName("RequiredMemory");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Memory), new JavaTransitiveInstancesKey(java.lang.Integer.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Memory, parameter_Memory)
+          ));
+          //    find totalMemory(Host, TotalMemory)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_TotalMemory), TotalMemory.instance().getInternalQueryRepresentation());
+          //    RequiredMemory == sum find memoryRequirement(Host, _, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new sum().getAggregatorLogic(Integer.class), body, Tuples.flatTupleOf(var_Host, var___0_, var___1_), MemoryRequirement.instance().getInternalQueryRepresentation(), var__virtual_0_, 2);
+          new Equality(body, var_RequiredMemory, var__virtual_0_);
+          //    Memory == eval(TotalMemory - RequiredMemory)
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern availableMemory";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("RequiredMemory", "TotalMemory");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer RequiredMemory = (Integer) provider.getValue("RequiredMemory");
+                  Integer TotalMemory = (Integer) provider.getValue("TotalMemory");
+                  return evaluateExpression_1_1(RequiredMemory, TotalMemory);
+              }
+          },  var__virtual_1_ ); 
+          new Equality(body, var_Memory, var__virtual_1_);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "availableMemory");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static int evaluateExpression_1_1(final Integer RequiredMemory, final Integer TotalMemory) {
+    return ((TotalMemory).intValue() - (RequiredMemory).intValue());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeHddMetric.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeHddMetric.java
new file mode 100644
index 00000000..59d4ad27
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeHddMetric.java
@@ -0,0 +1,540 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.avg;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         pattern averageFreeHddMetric(Average : java Double) {
+ *              Average == avg find freeHddPercentage(_, #_);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AverageFreeHddMetric extends BaseGeneratedEMFQuerySpecification<AverageFreeHddMetric.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeHddMetric pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private Double fAverage;
+    
+    private static List<String> parameterNames = makeImmutableList("Average");
+    
+    private Match(final Double pAverage) {
+      this.fAverage = pAverage;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Average".equals(parameterName)) return this.fAverage;
+      return null;
+    }
+    
+    public Double getAverage() {
+      return this.fAverage;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Average".equals(parameterName) ) {
+          this.fAverage = (Double) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setAverage(final Double pAverage) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fAverage = pAverage;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeHddMetric";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AverageFreeHddMetric.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fAverage};
+    }
+    
+    @Override
+    public AverageFreeHddMetric.Match toImmutable() {
+      return isMutable() ? newMatch(fAverage) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Average\"=" + prettyPrintValue(fAverage));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fAverage);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AverageFreeHddMetric.Match)) {
+          AverageFreeHddMetric.Match other = (AverageFreeHddMetric.Match) obj;
+          return Objects.equals(fAverage, other.fAverage);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public AverageFreeHddMetric specification() {
+      return AverageFreeHddMetric.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static AverageFreeHddMetric.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AverageFreeHddMetric.Match newMutableMatch(final Double pAverage) {
+      return new Mutable(pAverage);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AverageFreeHddMetric.Match newMatch(final Double pAverage) {
+      return new Immutable(pAverage);
+    }
+    
+    private static final class Mutable extends AverageFreeHddMetric.Match {
+      Mutable(final Double pAverage) {
+        super(pAverage);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AverageFreeHddMetric.Match {
+      Immutable(final Double pAverage) {
+        super(pAverage);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeHddMetric pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * pattern averageFreeHddMetric(Average : java Double) {
+   *    Average == avg find freeHddPercentage(_, #_);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AverageFreeHddMetric
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AverageFreeHddMetric.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static AverageFreeHddMetric.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static AverageFreeHddMetric.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_AVERAGE = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AverageFreeHddMetric.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AverageFreeHddMetric.Match> getAllMatches(final Double pAverage) {
+      return rawStreamAllMatches(new Object[]{pAverage}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AverageFreeHddMetric.Match> streamAllMatches(final Double pAverage) {
+      return rawStreamAllMatches(new Object[]{pAverage});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AverageFreeHddMetric.Match> getOneArbitraryMatch(final Double pAverage) {
+      return rawGetOneArbitraryMatch(new Object[]{pAverage});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Double pAverage) {
+      return rawHasMatch(new Object[]{pAverage});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Double pAverage) {
+      return rawCountMatches(new Object[]{pAverage});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final Double pAverage, final Consumer<? super AverageFreeHddMetric.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pAverage}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AverageFreeHddMetric.Match newMatch(final Double pAverage) {
+      return AverageFreeHddMetric.Match.newMatch(pAverage);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Double> rawStreamAllValuesOfAverage(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_AVERAGE, parameters).map(Double.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Double> getAllValuesOfAverage() {
+      return rawStreamAllValuesOfAverage(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Double> streamAllValuesOfAverage() {
+      return rawStreamAllValuesOfAverage(emptyArray());
+    }
+    
+    @Override
+    protected AverageFreeHddMetric.Match tupleToMatch(final Tuple t) {
+      try {
+          return AverageFreeHddMetric.Match.newMatch((Double) t.get(POSITION_AVERAGE));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AverageFreeHddMetric.Match arrayToMatch(final Object[] match) {
+      try {
+          return AverageFreeHddMetric.Match.newMatch((Double) match[POSITION_AVERAGE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AverageFreeHddMetric.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AverageFreeHddMetric.Match.newMutableMatch((Double) match[POSITION_AVERAGE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<AverageFreeHddMetric.Matcher> querySpecification() {
+      return AverageFreeHddMetric.instance();
+    }
+  }
+  
+  private AverageFreeHddMetric() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AverageFreeHddMetric instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AverageFreeHddMetric.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AverageFreeHddMetric.Matcher.on(engine);
+  }
+  
+  @Override
+  public AverageFreeHddMetric.Matcher instantiate() {
+    return AverageFreeHddMetric.Matcher.create();
+  }
+  
+  @Override
+  public AverageFreeHddMetric.Match newEmptyMatch() {
+    return AverageFreeHddMetric.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AverageFreeHddMetric.Match newMatch(final Object... parameters) {
+    return AverageFreeHddMetric.Match.newMatch((java.lang.Double) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric (visibility: PUBLIC, simpleName: AverageFreeHddMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric (visibility: PUBLIC, simpleName: AverageFreeHddMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AverageFreeHddMetric INSTANCE = new AverageFreeHddMetric();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AverageFreeHddMetric.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Average = new PParameter("Average", "java.lang.Double", new JavaTransitiveInstancesKey(java.lang.Double.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Average);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeHddMetric";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Average");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Average = body.getOrCreateVariableByName("Average");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Average), new JavaTransitiveInstancesKey(java.lang.Double.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Average, parameter_Average)
+          ));
+          //    Average == avg find freeHddPercentage(_, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new avg().getAggregatorLogic(Double.class), body, Tuples.flatTupleOf(var___0_, var___1_), FreeHddPercentage.instance().getInternalQueryRepresentation(), var__virtual_0_, 1);
+          new Equality(body, var_Average, var__virtual_0_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeMemoryMetric.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeMemoryMetric.java
new file mode 100644
index 00000000..a0d087f4
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AverageFreeMemoryMetric.java
@@ -0,0 +1,540 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.avg;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         pattern averageFreeMemoryMetric(Average : java Double) {
+ *              Average == avg find freeMemoryPercentage(_, #_);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AverageFreeMemoryMetric extends BaseGeneratedEMFQuerySpecification<AverageFreeMemoryMetric.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeMemoryMetric pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private Double fAverage;
+    
+    private static List<String> parameterNames = makeImmutableList("Average");
+    
+    private Match(final Double pAverage) {
+      this.fAverage = pAverage;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Average".equals(parameterName)) return this.fAverage;
+      return null;
+    }
+    
+    public Double getAverage() {
+      return this.fAverage;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Average".equals(parameterName) ) {
+          this.fAverage = (Double) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setAverage(final Double pAverage) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fAverage = pAverage;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeMemoryMetric";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AverageFreeMemoryMetric.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fAverage};
+    }
+    
+    @Override
+    public AverageFreeMemoryMetric.Match toImmutable() {
+      return isMutable() ? newMatch(fAverage) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Average\"=" + prettyPrintValue(fAverage));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fAverage);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AverageFreeMemoryMetric.Match)) {
+          AverageFreeMemoryMetric.Match other = (AverageFreeMemoryMetric.Match) obj;
+          return Objects.equals(fAverage, other.fAverage);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public AverageFreeMemoryMetric specification() {
+      return AverageFreeMemoryMetric.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static AverageFreeMemoryMetric.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AverageFreeMemoryMetric.Match newMutableMatch(final Double pAverage) {
+      return new Mutable(pAverage);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AverageFreeMemoryMetric.Match newMatch(final Double pAverage) {
+      return new Immutable(pAverage);
+    }
+    
+    private static final class Mutable extends AverageFreeMemoryMetric.Match {
+      Mutable(final Double pAverage) {
+        super(pAverage);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AverageFreeMemoryMetric.Match {
+      Immutable(final Double pAverage) {
+        super(pAverage);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeMemoryMetric pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * pattern averageFreeMemoryMetric(Average : java Double) {
+   *    Average == avg find freeMemoryPercentage(_, #_);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AverageFreeMemoryMetric
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AverageFreeMemoryMetric.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static AverageFreeMemoryMetric.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static AverageFreeMemoryMetric.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_AVERAGE = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AverageFreeMemoryMetric.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AverageFreeMemoryMetric.Match> getAllMatches(final Double pAverage) {
+      return rawStreamAllMatches(new Object[]{pAverage}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AverageFreeMemoryMetric.Match> streamAllMatches(final Double pAverage) {
+      return rawStreamAllMatches(new Object[]{pAverage});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AverageFreeMemoryMetric.Match> getOneArbitraryMatch(final Double pAverage) {
+      return rawGetOneArbitraryMatch(new Object[]{pAverage});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Double pAverage) {
+      return rawHasMatch(new Object[]{pAverage});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Double pAverage) {
+      return rawCountMatches(new Object[]{pAverage});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final Double pAverage, final Consumer<? super AverageFreeMemoryMetric.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pAverage}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pAverage the fixed value of pattern parameter Average, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AverageFreeMemoryMetric.Match newMatch(final Double pAverage) {
+      return AverageFreeMemoryMetric.Match.newMatch(pAverage);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Double> rawStreamAllValuesOfAverage(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_AVERAGE, parameters).map(Double.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Double> getAllValuesOfAverage() {
+      return rawStreamAllValuesOfAverage(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Average.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Double> streamAllValuesOfAverage() {
+      return rawStreamAllValuesOfAverage(emptyArray());
+    }
+    
+    @Override
+    protected AverageFreeMemoryMetric.Match tupleToMatch(final Tuple t) {
+      try {
+          return AverageFreeMemoryMetric.Match.newMatch((Double) t.get(POSITION_AVERAGE));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AverageFreeMemoryMetric.Match arrayToMatch(final Object[] match) {
+      try {
+          return AverageFreeMemoryMetric.Match.newMatch((Double) match[POSITION_AVERAGE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AverageFreeMemoryMetric.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AverageFreeMemoryMetric.Match.newMutableMatch((Double) match[POSITION_AVERAGE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<AverageFreeMemoryMetric.Matcher> querySpecification() {
+      return AverageFreeMemoryMetric.instance();
+    }
+  }
+  
+  private AverageFreeMemoryMetric() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AverageFreeMemoryMetric instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AverageFreeMemoryMetric.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AverageFreeMemoryMetric.Matcher.on(engine);
+  }
+  
+  @Override
+  public AverageFreeMemoryMetric.Matcher instantiate() {
+    return AverageFreeMemoryMetric.Matcher.create();
+  }
+  
+  @Override
+  public AverageFreeMemoryMetric.Match newEmptyMatch() {
+    return AverageFreeMemoryMetric.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AverageFreeMemoryMetric.Match newMatch(final Object... parameters) {
+    return AverageFreeMemoryMetric.Match.newMatch((java.lang.Double) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric (visibility: PUBLIC, simpleName: AverageFreeMemoryMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric (visibility: PUBLIC, simpleName: AverageFreeMemoryMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AverageFreeMemoryMetric INSTANCE = new AverageFreeMemoryMetric();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AverageFreeMemoryMetric.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Average = new PParameter("Average", "java.lang.Double", new JavaTransitiveInstancesKey(java.lang.Double.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Average);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.averageFreeMemoryMetric";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Average");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Average = body.getOrCreateVariableByName("Average");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Average), new JavaTransitiveInstancesKey(java.lang.Double.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Average, parameter_Average)
+          ));
+          //    Average == avg find freeMemoryPercentage(_, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new avg().getAggregatorLogic(Double.class), body, Tuples.flatTupleOf(var___0_, var___1_), FreeMemoryPercentage.instance().getInternalQueryRepresentation(), var__virtual_0_, 1);
+          new Equality(body, var_Average, var__virtual_0_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CostMetric.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CostMetric.java
new file mode 100644
index 00000000..4d8ca4cc
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CostMetric.java
@@ -0,0 +1,540 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.sum;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         pattern costMetric(Cost : java Integer) {
+ *              Cost == sum find cpsCost(_, #_);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class CostMetric extends BaseGeneratedEMFQuerySpecification<CostMetric.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.costMetric pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private Integer fCost;
+    
+    private static List<String> parameterNames = makeImmutableList("Cost");
+    
+    private Match(final Integer pCost) {
+      this.fCost = pCost;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Cost".equals(parameterName)) return this.fCost;
+      return null;
+    }
+    
+    public Integer getCost() {
+      return this.fCost;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Cost".equals(parameterName) ) {
+          this.fCost = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setCost(final Integer pCost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fCost = pCost;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.costMetric";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return CostMetric.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fCost};
+    }
+    
+    @Override
+    public CostMetric.Match toImmutable() {
+      return isMutable() ? newMatch(fCost) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Cost\"=" + prettyPrintValue(fCost));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fCost);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof CostMetric.Match)) {
+          CostMetric.Match other = (CostMetric.Match) obj;
+          return Objects.equals(fCost, other.fCost);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public CostMetric specification() {
+      return CostMetric.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static CostMetric.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static CostMetric.Match newMutableMatch(final Integer pCost) {
+      return new Mutable(pCost);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static CostMetric.Match newMatch(final Integer pCost) {
+      return new Immutable(pCost);
+    }
+    
+    private static final class Mutable extends CostMetric.Match {
+      Mutable(final Integer pCost) {
+        super(pCost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends CostMetric.Match {
+      Immutable(final Integer pCost) {
+        super(pCost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.costMetric pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * pattern costMetric(Cost : java Integer) {
+   *    Cost == sum find cpsCost(_, #_);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see CostMetric
+   * 
+   */
+  public static class Matcher extends BaseMatcher<CostMetric.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static CostMetric.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static CostMetric.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_COST = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(CostMetric.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<CostMetric.Match> getAllMatches(final Integer pCost) {
+      return rawStreamAllMatches(new Object[]{pCost}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<CostMetric.Match> streamAllMatches(final Integer pCost) {
+      return rawStreamAllMatches(new Object[]{pCost});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<CostMetric.Match> getOneArbitraryMatch(final Integer pCost) {
+      return rawGetOneArbitraryMatch(new Object[]{pCost});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Integer pCost) {
+      return rawHasMatch(new Object[]{pCost});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Integer pCost) {
+      return rawCountMatches(new Object[]{pCost});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final Integer pCost, final Consumer<? super CostMetric.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pCost}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public CostMetric.Match newMatch(final Integer pCost) {
+      return CostMetric.Match.newMatch(pCost);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfCost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_COST, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfCost() {
+      return rawStreamAllValuesOfCost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfCost() {
+      return rawStreamAllValuesOfCost(emptyArray());
+    }
+    
+    @Override
+    protected CostMetric.Match tupleToMatch(final Tuple t) {
+      try {
+          return CostMetric.Match.newMatch((Integer) t.get(POSITION_COST));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CostMetric.Match arrayToMatch(final Object[] match) {
+      try {
+          return CostMetric.Match.newMatch((Integer) match[POSITION_COST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CostMetric.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return CostMetric.Match.newMutableMatch((Integer) match[POSITION_COST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<CostMetric.Matcher> querySpecification() {
+      return CostMetric.instance();
+    }
+  }
+  
+  private CostMetric() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static CostMetric instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected CostMetric.Matcher instantiate(final ViatraQueryEngine engine) {
+    return CostMetric.Matcher.on(engine);
+  }
+  
+  @Override
+  public CostMetric.Matcher instantiate() {
+    return CostMetric.Matcher.create();
+  }
+  
+  @Override
+  public CostMetric.Match newEmptyMatch() {
+    return CostMetric.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public CostMetric.Match newMatch(final Object... parameters) {
+    return CostMetric.Match.newMatch((java.lang.Integer) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric (visibility: PUBLIC, simpleName: CostMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric (visibility: PUBLIC, simpleName: CostMetric, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final CostMetric INSTANCE = new CostMetric();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final CostMetric.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Cost = new PParameter("Cost", "java.lang.Integer", new JavaTransitiveInstancesKey(java.lang.Integer.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Cost);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.costMetric";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Cost");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Cost = body.getOrCreateVariableByName("Cost");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Cost), new JavaTransitiveInstancesKey(java.lang.Integer.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Cost, parameter_Cost)
+          ));
+          //    Cost == sum find cpsCost(_, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new sum().getAggregatorLogic(Integer.class), body, Tuples.flatTupleOf(var___0_, var___1_), CpsCost.instance().getInternalQueryRepresentation(), var__virtual_0_, 1);
+          new Equality(body, var_Cost, var__virtual_0_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsApplications.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsApplications.java
new file mode 100644
index 00000000..2c20b38e
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsApplications.java
@@ -0,0 +1,705 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "applications")
+ *         pattern cpsApplications(Cps : CyberPhysicalSystem, AppInstance : ApplicationInstance) {
+ *              CyberPhysicalSystem.applicationTypes.instances(Cps, AppInstance);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class CpsApplications extends BaseGeneratedEMFQuerySpecification<CpsApplications.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsApplications pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private CyberPhysicalSystem fCps;
+    
+    private ApplicationInstance fAppInstance;
+    
+    private static List<String> parameterNames = makeImmutableList("Cps", "AppInstance");
+    
+    private Match(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      this.fCps = pCps;
+      this.fAppInstance = pAppInstance;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Cps".equals(parameterName)) return this.fCps;
+      if ("AppInstance".equals(parameterName)) return this.fAppInstance;
+      return null;
+    }
+    
+    public CyberPhysicalSystem getCps() {
+      return this.fCps;
+    }
+    
+    public ApplicationInstance getAppInstance() {
+      return this.fAppInstance;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Cps".equals(parameterName) ) {
+          this.fCps = (CyberPhysicalSystem) newValue;
+          return true;
+      }
+      if ("AppInstance".equals(parameterName) ) {
+          this.fAppInstance = (ApplicationInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setCps(final CyberPhysicalSystem pCps) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fCps = pCps;
+    }
+    
+    public void setAppInstance(final ApplicationInstance pAppInstance) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fAppInstance = pAppInstance;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsApplications";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return CpsApplications.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fCps, fAppInstance};
+    }
+    
+    @Override
+    public CpsApplications.Match toImmutable() {
+      return isMutable() ? newMatch(fCps, fAppInstance) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Cps\"=" + prettyPrintValue(fCps) + ", ");
+      result.append("\"AppInstance\"=" + prettyPrintValue(fAppInstance));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fCps, fAppInstance);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof CpsApplications.Match)) {
+          CpsApplications.Match other = (CpsApplications.Match) obj;
+          return Objects.equals(fCps, other.fCps) && Objects.equals(fAppInstance, other.fAppInstance);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public CpsApplications specification() {
+      return CpsApplications.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static CpsApplications.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static CpsApplications.Match newMutableMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return new Mutable(pCps, pAppInstance);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static CpsApplications.Match newMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return new Immutable(pCps, pAppInstance);
+    }
+    
+    private static final class Mutable extends CpsApplications.Match {
+      Mutable(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+        super(pCps, pAppInstance);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends CpsApplications.Match {
+      Immutable(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+        super(pCps, pAppInstance);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsApplications pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "applications")
+   * pattern cpsApplications(Cps : CyberPhysicalSystem, AppInstance : ApplicationInstance) {
+   *    CyberPhysicalSystem.applicationTypes.instances(Cps, AppInstance);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see CpsApplications
+   * 
+   */
+  public static class Matcher extends BaseMatcher<CpsApplications.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static CpsApplications.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static CpsApplications.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_CPS = 0;
+    
+    private static final int POSITION_APPINSTANCE = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(CpsApplications.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<CpsApplications.Match> getAllMatches(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return rawStreamAllMatches(new Object[]{pCps, pAppInstance}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<CpsApplications.Match> streamAllMatches(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return rawStreamAllMatches(new Object[]{pCps, pAppInstance});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<CpsApplications.Match> getOneArbitraryMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return rawGetOneArbitraryMatch(new Object[]{pCps, pAppInstance});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return rawHasMatch(new Object[]{pCps, pAppInstance});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return rawCountMatches(new Object[]{pCps, pAppInstance});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance, final Consumer<? super CpsApplications.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pCps, pAppInstance}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pAppInstance the fixed value of pattern parameter AppInstance, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public CpsApplications.Match newMatch(final CyberPhysicalSystem pCps, final ApplicationInstance pAppInstance) {
+      return CpsApplications.Match.newMatch(pCps, pAppInstance);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<CyberPhysicalSystem> rawStreamAllValuesOfCps(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_CPS, parameters).map(CyberPhysicalSystem.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final CpsApplications.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final ApplicationInstance pAppInstance) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pAppInstance});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final CpsApplications.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final ApplicationInstance pAppInstance) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pAppInstance}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<ApplicationInstance> rawStreamAllValuesOfAppInstance(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_APPINSTANCE, parameters).map(ApplicationInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfAppInstance() {
+      return rawStreamAllValuesOfAppInstance(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfAppInstance() {
+      return rawStreamAllValuesOfAppInstance(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfAppInstance(final CpsApplications.Match partialMatch) {
+      return rawStreamAllValuesOfAppInstance(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfAppInstance(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfAppInstance(new Object[]{pCps, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfAppInstance(final CpsApplications.Match partialMatch) {
+      return rawStreamAllValuesOfAppInstance(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for AppInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfAppInstance(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfAppInstance(new Object[]{pCps, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected CpsApplications.Match tupleToMatch(final Tuple t) {
+      try {
+          return CpsApplications.Match.newMatch((CyberPhysicalSystem) t.get(POSITION_CPS), (ApplicationInstance) t.get(POSITION_APPINSTANCE));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsApplications.Match arrayToMatch(final Object[] match) {
+      try {
+          return CpsApplications.Match.newMatch((CyberPhysicalSystem) match[POSITION_CPS], (ApplicationInstance) match[POSITION_APPINSTANCE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsApplications.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return CpsApplications.Match.newMutableMatch((CyberPhysicalSystem) match[POSITION_CPS], (ApplicationInstance) match[POSITION_APPINSTANCE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<CpsApplications.Matcher> querySpecification() {
+      return CpsApplications.instance();
+    }
+  }
+  
+  private CpsApplications() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static CpsApplications instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected CpsApplications.Matcher instantiate(final ViatraQueryEngine engine) {
+    return CpsApplications.Matcher.on(engine);
+  }
+  
+  @Override
+  public CpsApplications.Matcher instantiate() {
+    return CpsApplications.Matcher.create();
+  }
+  
+  @Override
+  public CpsApplications.Match newEmptyMatch() {
+    return CpsApplications.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public CpsApplications.Match newMatch(final Object... parameters) {
+    return CpsApplications.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications (visibility: PUBLIC, simpleName: CpsApplications, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications (visibility: PUBLIC, simpleName: CpsApplications, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final CpsApplications INSTANCE = new CpsApplications();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final CpsApplications.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Cps = new PParameter("Cps", "hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "CyberPhysicalSystem")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_AppInstance = new PParameter("AppInstance", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Cps, parameter_AppInstance);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsApplications";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Cps","AppInstance");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Cps = body.getOrCreateVariableByName("Cps");
+          PVariable var_AppInstance = body.getOrCreateVariableByName("AppInstance");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_AppInstance), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Cps, parameter_Cps),
+             new ExportedParameter(body, var_AppInstance, parameter_AppInstance)
+          ));
+          //    CyberPhysicalSystem.applicationTypes.instances(Cps, AppInstance)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "CyberPhysicalSystem", "applicationTypes")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationType")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationType", "instances")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new Equality(body, var__virtual_1_, var_AppInstance);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "applications");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsCost.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsCost.java
new file mode 100644
index 00000000..169a30e5
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsCost.java
@@ -0,0 +1,738 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.aggregators.sum;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.PatternMatchCounter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         pattern cpsCost(Cps : CyberPhysicalSystem, Cost : java Integer) {
+ *              AppCount == count find cpsApplications(Cps, _);
+ *              HostCost == sum find hostInstanceCost(Cps, _, #_);
+ *              Cost == eval(5  AppCount + HostCost);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class CpsCost extends BaseGeneratedEMFQuerySpecification<CpsCost.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsCost pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private CyberPhysicalSystem fCps;
+    
+    private Integer fCost;
+    
+    private static List<String> parameterNames = makeImmutableList("Cps", "Cost");
+    
+    private Match(final CyberPhysicalSystem pCps, final Integer pCost) {
+      this.fCps = pCps;
+      this.fCost = pCost;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Cps".equals(parameterName)) return this.fCps;
+      if ("Cost".equals(parameterName)) return this.fCost;
+      return null;
+    }
+    
+    public CyberPhysicalSystem getCps() {
+      return this.fCps;
+    }
+    
+    public Integer getCost() {
+      return this.fCost;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Cps".equals(parameterName) ) {
+          this.fCps = (CyberPhysicalSystem) newValue;
+          return true;
+      }
+      if ("Cost".equals(parameterName) ) {
+          this.fCost = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setCps(final CyberPhysicalSystem pCps) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fCps = pCps;
+    }
+    
+    public void setCost(final Integer pCost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fCost = pCost;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsCost";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return CpsCost.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fCps, fCost};
+    }
+    
+    @Override
+    public CpsCost.Match toImmutable() {
+      return isMutable() ? newMatch(fCps, fCost) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Cps\"=" + prettyPrintValue(fCps) + ", ");
+      result.append("\"Cost\"=" + prettyPrintValue(fCost));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fCps, fCost);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof CpsCost.Match)) {
+          CpsCost.Match other = (CpsCost.Match) obj;
+          return Objects.equals(fCps, other.fCps) && Objects.equals(fCost, other.fCost);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public CpsCost specification() {
+      return CpsCost.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static CpsCost.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static CpsCost.Match newMutableMatch(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return new Mutable(pCps, pCost);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static CpsCost.Match newMatch(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return new Immutable(pCps, pCost);
+    }
+    
+    private static final class Mutable extends CpsCost.Match {
+      Mutable(final CyberPhysicalSystem pCps, final Integer pCost) {
+        super(pCps, pCost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends CpsCost.Match {
+      Immutable(final CyberPhysicalSystem pCps, final Integer pCost) {
+        super(pCps, pCost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsCost pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * pattern cpsCost(Cps : CyberPhysicalSystem, Cost : java Integer) {
+   *    AppCount == count find cpsApplications(Cps, _);
+   *    HostCost == sum find hostInstanceCost(Cps, _, #_);
+   *    Cost == eval(5  AppCount + HostCost);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see CpsCost
+   * 
+   */
+  public static class Matcher extends BaseMatcher<CpsCost.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static CpsCost.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static CpsCost.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_CPS = 0;
+    
+    private static final int POSITION_COST = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(CpsCost.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<CpsCost.Match> getAllMatches(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return rawStreamAllMatches(new Object[]{pCps, pCost}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<CpsCost.Match> streamAllMatches(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return rawStreamAllMatches(new Object[]{pCps, pCost});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<CpsCost.Match> getOneArbitraryMatch(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return rawGetOneArbitraryMatch(new Object[]{pCps, pCost});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return rawHasMatch(new Object[]{pCps, pCost});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return rawCountMatches(new Object[]{pCps, pCost});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final CyberPhysicalSystem pCps, final Integer pCost, final Consumer<? super CpsCost.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pCps, pCost}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pCost the fixed value of pattern parameter Cost, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public CpsCost.Match newMatch(final CyberPhysicalSystem pCps, final Integer pCost) {
+      return CpsCost.Match.newMatch(pCps, pCost);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<CyberPhysicalSystem> rawStreamAllValuesOfCps(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_CPS, parameters).map(CyberPhysicalSystem.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final CpsCost.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final Integer pCost) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pCost});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final CpsCost.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final Integer pCost) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pCost}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfCost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_COST, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfCost() {
+      return rawStreamAllValuesOfCost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfCost() {
+      return rawStreamAllValuesOfCost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfCost(final CpsCost.Match partialMatch) {
+      return rawStreamAllValuesOfCost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfCost(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfCost(new Object[]{pCps, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfCost(final CpsCost.Match partialMatch) {
+      return rawStreamAllValuesOfCost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cost.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfCost(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfCost(new Object[]{pCps, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected CpsCost.Match tupleToMatch(final Tuple t) {
+      try {
+          return CpsCost.Match.newMatch((CyberPhysicalSystem) t.get(POSITION_CPS), (Integer) t.get(POSITION_COST));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsCost.Match arrayToMatch(final Object[] match) {
+      try {
+          return CpsCost.Match.newMatch((CyberPhysicalSystem) match[POSITION_CPS], (Integer) match[POSITION_COST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsCost.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return CpsCost.Match.newMutableMatch((CyberPhysicalSystem) match[POSITION_CPS], (Integer) match[POSITION_COST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<CpsCost.Matcher> querySpecification() {
+      return CpsCost.instance();
+    }
+  }
+  
+  private CpsCost() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static CpsCost instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected CpsCost.Matcher instantiate(final ViatraQueryEngine engine) {
+    return CpsCost.Matcher.on(engine);
+  }
+  
+  @Override
+  public CpsCost.Matcher instantiate() {
+    return CpsCost.Matcher.create();
+  }
+  
+  @Override
+  public CpsCost.Match newEmptyMatch() {
+    return CpsCost.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public CpsCost.Match newMatch(final Object... parameters) {
+    return CpsCost.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost (visibility: PUBLIC, simpleName: CpsCost, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost (visibility: PUBLIC, simpleName: CpsCost, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final CpsCost INSTANCE = new CpsCost();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final CpsCost.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Cps = new PParameter("Cps", "hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "CyberPhysicalSystem")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Cost = new PParameter("Cost", "java.lang.Integer", new JavaTransitiveInstancesKey(java.lang.Integer.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Cps, parameter_Cost);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsCost";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Cps","Cost");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Cps = body.getOrCreateVariableByName("Cps");
+          PVariable var_Cost = body.getOrCreateVariableByName("Cost");
+          PVariable var_AppCount = body.getOrCreateVariableByName("AppCount");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var_HostCost = body.getOrCreateVariableByName("HostCost");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          PVariable var___2_ = body.getOrCreateVariableByName("_<2>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Cost), new JavaTransitiveInstancesKey(java.lang.Integer.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Cps, parameter_Cps),
+             new ExportedParameter(body, var_Cost, parameter_Cost)
+          ));
+          //    AppCount == count find cpsApplications(Cps, _)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new PatternMatchCounter(body, Tuples.flatTupleOf(var_Cps, var___0_), CpsApplications.instance().getInternalQueryRepresentation(), var__virtual_0_);
+          new Equality(body, var_AppCount, var__virtual_0_);
+          //    HostCost == sum find hostInstanceCost(Cps, _, #_)
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new AggregatorConstraint(new sum().getAggregatorLogic(Integer.class), body, Tuples.flatTupleOf(var_Cps, var___1_, var___2_), HostInstanceCost.instance().getInternalQueryRepresentation(), var__virtual_1_, 2);
+          new Equality(body, var_HostCost, var__virtual_1_);
+          //    Cost == eval(5 * AppCount + HostCost)
+          PVariable var__virtual_2_ = body.getOrCreateVariableByName(".virtual{2}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern cpsCost";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("AppCount", "HostCost");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer AppCount = (Integer) provider.getValue("AppCount");
+                  Integer HostCost = (Integer) provider.getValue("HostCost");
+                  return evaluateExpression_1_1(AppCount, HostCost);
+              }
+          },  var__virtual_2_ ); 
+          new Equality(body, var_Cost, var__virtual_2_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+  
+  private static int evaluateExpression_1_1(final Integer AppCount, final Integer HostCost) {
+    return ((5 * (AppCount).intValue()) + (HostCost).intValue());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsHosts.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsHosts.java
new file mode 100644
index 00000000..e1abf758
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsHosts.java
@@ -0,0 +1,705 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem;
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "hosts")
+ *         pattern cpsHosts(Cps : CyberPhysicalSystem, HostInstance : HostInstance) {
+ *              CyberPhysicalSystem.hostTypes.instances(Cps, HostInstance);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class CpsHosts extends BaseGeneratedEMFQuerySpecification<CpsHosts.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsHosts pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private CyberPhysicalSystem fCps;
+    
+    private HostInstance fHostInstance;
+    
+    private static List<String> parameterNames = makeImmutableList("Cps", "HostInstance");
+    
+    private Match(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      this.fCps = pCps;
+      this.fHostInstance = pHostInstance;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Cps".equals(parameterName)) return this.fCps;
+      if ("HostInstance".equals(parameterName)) return this.fHostInstance;
+      return null;
+    }
+    
+    public CyberPhysicalSystem getCps() {
+      return this.fCps;
+    }
+    
+    public HostInstance getHostInstance() {
+      return this.fHostInstance;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Cps".equals(parameterName) ) {
+          this.fCps = (CyberPhysicalSystem) newValue;
+          return true;
+      }
+      if ("HostInstance".equals(parameterName) ) {
+          this.fHostInstance = (HostInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setCps(final CyberPhysicalSystem pCps) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fCps = pCps;
+    }
+    
+    public void setHostInstance(final HostInstance pHostInstance) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHostInstance = pHostInstance;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsHosts";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return CpsHosts.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fCps, fHostInstance};
+    }
+    
+    @Override
+    public CpsHosts.Match toImmutable() {
+      return isMutable() ? newMatch(fCps, fHostInstance) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Cps\"=" + prettyPrintValue(fCps) + ", ");
+      result.append("\"HostInstance\"=" + prettyPrintValue(fHostInstance));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fCps, fHostInstance);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof CpsHosts.Match)) {
+          CpsHosts.Match other = (CpsHosts.Match) obj;
+          return Objects.equals(fCps, other.fCps) && Objects.equals(fHostInstance, other.fHostInstance);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public CpsHosts specification() {
+      return CpsHosts.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static CpsHosts.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static CpsHosts.Match newMutableMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return new Mutable(pCps, pHostInstance);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static CpsHosts.Match newMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return new Immutable(pCps, pHostInstance);
+    }
+    
+    private static final class Mutable extends CpsHosts.Match {
+      Mutable(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+        super(pCps, pHostInstance);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends CpsHosts.Match {
+      Immutable(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+        super(pCps, pHostInstance);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsHosts pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "hosts")
+   * pattern cpsHosts(Cps : CyberPhysicalSystem, HostInstance : HostInstance) {
+   *    CyberPhysicalSystem.hostTypes.instances(Cps, HostInstance);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see CpsHosts
+   * 
+   */
+  public static class Matcher extends BaseMatcher<CpsHosts.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static CpsHosts.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static CpsHosts.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_CPS = 0;
+    
+    private static final int POSITION_HOSTINSTANCE = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(CpsHosts.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<CpsHosts.Match> getAllMatches(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return rawStreamAllMatches(new Object[]{pCps, pHostInstance}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<CpsHosts.Match> streamAllMatches(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return rawStreamAllMatches(new Object[]{pCps, pHostInstance});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<CpsHosts.Match> getOneArbitraryMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return rawGetOneArbitraryMatch(new Object[]{pCps, pHostInstance});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return rawHasMatch(new Object[]{pCps, pHostInstance});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return rawCountMatches(new Object[]{pCps, pHostInstance});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance, final Consumer<? super CpsHosts.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pCps, pHostInstance}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pCps the fixed value of pattern parameter Cps, or null if not bound.
+     * @param pHostInstance the fixed value of pattern parameter HostInstance, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public CpsHosts.Match newMatch(final CyberPhysicalSystem pCps, final HostInstance pHostInstance) {
+      return CpsHosts.Match.newMatch(pCps, pHostInstance);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<CyberPhysicalSystem> rawStreamAllValuesOfCps(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_CPS, parameters).map(CyberPhysicalSystem.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps() {
+      return rawStreamAllValuesOfCps(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final CpsHosts.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<CyberPhysicalSystem> streamAllValuesOfCps(final HostInstance pHostInstance) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pHostInstance});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final CpsHosts.Match partialMatch) {
+      return rawStreamAllValuesOfCps(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Cps.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<CyberPhysicalSystem> getAllValuesOfCps(final HostInstance pHostInstance) {
+      return rawStreamAllValuesOfCps(new Object[]{null, pHostInstance}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHostInstance(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOSTINSTANCE, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHostInstance() {
+      return rawStreamAllValuesOfHostInstance(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHostInstance() {
+      return rawStreamAllValuesOfHostInstance(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHostInstance(final CpsHosts.Match partialMatch) {
+      return rawStreamAllValuesOfHostInstance(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHostInstance(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfHostInstance(new Object[]{pCps, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHostInstance(final CpsHosts.Match partialMatch) {
+      return rawStreamAllValuesOfHostInstance(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for HostInstance.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHostInstance(final CyberPhysicalSystem pCps) {
+      return rawStreamAllValuesOfHostInstance(new Object[]{pCps, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected CpsHosts.Match tupleToMatch(final Tuple t) {
+      try {
+          return CpsHosts.Match.newMatch((CyberPhysicalSystem) t.get(POSITION_CPS), (HostInstance) t.get(POSITION_HOSTINSTANCE));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsHosts.Match arrayToMatch(final Object[] match) {
+      try {
+          return CpsHosts.Match.newMatch((CyberPhysicalSystem) match[POSITION_CPS], (HostInstance) match[POSITION_HOSTINSTANCE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected CpsHosts.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return CpsHosts.Match.newMutableMatch((CyberPhysicalSystem) match[POSITION_CPS], (HostInstance) match[POSITION_HOSTINSTANCE]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<CpsHosts.Matcher> querySpecification() {
+      return CpsHosts.instance();
+    }
+  }
+  
+  private CpsHosts() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static CpsHosts instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected CpsHosts.Matcher instantiate(final ViatraQueryEngine engine) {
+    return CpsHosts.Matcher.on(engine);
+  }
+  
+  @Override
+  public CpsHosts.Matcher instantiate() {
+    return CpsHosts.Matcher.create();
+  }
+  
+  @Override
+  public CpsHosts.Match newEmptyMatch() {
+    return CpsHosts.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public CpsHosts.Match newMatch(final Object... parameters) {
+    return CpsHosts.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts (visibility: PUBLIC, simpleName: CpsHosts, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts (visibility: PUBLIC, simpleName: CpsHosts, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final CpsHosts INSTANCE = new CpsHosts();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final CpsHosts.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Cps = new PParameter("Cps", "hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "CyberPhysicalSystem")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_HostInstance = new PParameter("HostInstance", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Cps, parameter_HostInstance);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.cpsHosts";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Cps","HostInstance");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Cps = body.getOrCreateVariableByName("Cps");
+          PVariable var_HostInstance = body.getOrCreateVariableByName("HostInstance");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_HostInstance), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Cps, parameter_Cps),
+             new ExportedParameter(body, var_HostInstance, parameter_HostInstance)
+          ));
+          //    CyberPhysicalSystem.hostTypes.instances(Cps, HostInstance)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "CyberPhysicalSystem", "hostTypes")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostType", "instances")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new Equality(body, var__virtual_1_, var_HostInstance);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "hosts");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.java
new file mode 100644
index 00000000..4442718b
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.java
@@ -0,0 +1,207 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedPatternGroup;
+
+/**
+ * A pattern group formed of all public patterns defined in CpsQueries.vql.
+ * 
+ * <p>Use the static instance as any {@link interface org.eclipse.viatra.query.runtime.api.IQueryGroup}, to conveniently prepare
+ * a VIATRA Query engine for matching all patterns originally defined in file CpsQueries.vql,
+ * in order to achieve better performance than one-by-one on-demand matcher initialization.
+ * 
+ * <p> From package hu.bme.mit.inf.dslreasoner.domains.cps.queries, the group contains the definition of the following patterns: <ul>
+ * <li>cpsApplications</li>
+ * <li>cpsHosts</li>
+ * <li>totalMemory</li>
+ * <li>totalHdd</li>
+ * <li>availableMemory</li>
+ * <li>availableHdd</li>
+ * <li>allocationWithoutResourceRequirement</li>
+ * <li>notEnoughAvailableMemory</li>
+ * <li>notEnoughAvailableHdd</li>
+ * <li>instanceDoesNotSatisfyRequirement</li>
+ * <li>requirementNotSatisfied</li>
+ * <li>averageFreeMemoryMetric</li>
+ * <li>averageFreeHddMetric</li>
+ * <li>costMetric</li>
+ * <li>cpsCost</li>
+ * </ul>
+ * 
+ * @see IQueryGroup
+ * 
+ */
+@SuppressWarnings("all")
+public final class CpsQueries extends BaseGeneratedPatternGroup {
+  /**
+   * Access the pattern group.
+   * 
+   * @return the singleton instance of the group
+   * @throws ViatraQueryRuntimeException if there was an error loading the generated code of pattern specifications
+   * 
+   */
+  public static CpsQueries instance() {
+    if (INSTANCE == null) {
+        INSTANCE = new CpsQueries();
+    }
+    return INSTANCE;
+  }
+  
+  private static CpsQueries INSTANCE;
+  
+  private CpsQueries() {
+    querySpecifications.add(CpsApplications.instance());
+    querySpecifications.add(CpsHosts.instance());
+    querySpecifications.add(TotalMemory.instance());
+    querySpecifications.add(TotalHdd.instance());
+    querySpecifications.add(AvailableMemory.instance());
+    querySpecifications.add(AvailableHdd.instance());
+    querySpecifications.add(AllocationWithoutResourceRequirement.instance());
+    querySpecifications.add(NotEnoughAvailableMemory.instance());
+    querySpecifications.add(NotEnoughAvailableHdd.instance());
+    querySpecifications.add(InstanceDoesNotSatisfyRequirement.instance());
+    querySpecifications.add(RequirementNotSatisfied.instance());
+    querySpecifications.add(AverageFreeMemoryMetric.instance());
+    querySpecifications.add(AverageFreeHddMetric.instance());
+    querySpecifications.add(CostMetric.instance());
+    querySpecifications.add(CpsCost.instance());
+  }
+  
+  public CpsApplications getCpsApplications() {
+    return CpsApplications.instance();
+  }
+  
+  public CpsApplications.Matcher getCpsApplications(final ViatraQueryEngine engine) {
+    return CpsApplications.Matcher.on(engine);
+  }
+  
+  public CpsHosts getCpsHosts() {
+    return CpsHosts.instance();
+  }
+  
+  public CpsHosts.Matcher getCpsHosts(final ViatraQueryEngine engine) {
+    return CpsHosts.Matcher.on(engine);
+  }
+  
+  public TotalMemory getTotalMemory() {
+    return TotalMemory.instance();
+  }
+  
+  public TotalMemory.Matcher getTotalMemory(final ViatraQueryEngine engine) {
+    return TotalMemory.Matcher.on(engine);
+  }
+  
+  public TotalHdd getTotalHdd() {
+    return TotalHdd.instance();
+  }
+  
+  public TotalHdd.Matcher getTotalHdd(final ViatraQueryEngine engine) {
+    return TotalHdd.Matcher.on(engine);
+  }
+  
+  public AvailableMemory getAvailableMemory() {
+    return AvailableMemory.instance();
+  }
+  
+  public AvailableMemory.Matcher getAvailableMemory(final ViatraQueryEngine engine) {
+    return AvailableMemory.Matcher.on(engine);
+  }
+  
+  public AvailableHdd getAvailableHdd() {
+    return AvailableHdd.instance();
+  }
+  
+  public AvailableHdd.Matcher getAvailableHdd(final ViatraQueryEngine engine) {
+    return AvailableHdd.Matcher.on(engine);
+  }
+  
+  public AllocationWithoutResourceRequirement getAllocationWithoutResourceRequirement() {
+    return AllocationWithoutResourceRequirement.instance();
+  }
+  
+  public AllocationWithoutResourceRequirement.Matcher getAllocationWithoutResourceRequirement(final ViatraQueryEngine engine) {
+    return AllocationWithoutResourceRequirement.Matcher.on(engine);
+  }
+  
+  public NotEnoughAvailableMemory getNotEnoughAvailableMemory() {
+    return NotEnoughAvailableMemory.instance();
+  }
+  
+  public NotEnoughAvailableMemory.Matcher getNotEnoughAvailableMemory(final ViatraQueryEngine engine) {
+    return NotEnoughAvailableMemory.Matcher.on(engine);
+  }
+  
+  public NotEnoughAvailableHdd getNotEnoughAvailableHdd() {
+    return NotEnoughAvailableHdd.instance();
+  }
+  
+  public NotEnoughAvailableHdd.Matcher getNotEnoughAvailableHdd(final ViatraQueryEngine engine) {
+    return NotEnoughAvailableHdd.Matcher.on(engine);
+  }
+  
+  public InstanceDoesNotSatisfyRequirement getInstanceDoesNotSatisfyRequirement() {
+    return InstanceDoesNotSatisfyRequirement.instance();
+  }
+  
+  public InstanceDoesNotSatisfyRequirement.Matcher getInstanceDoesNotSatisfyRequirement(final ViatraQueryEngine engine) {
+    return InstanceDoesNotSatisfyRequirement.Matcher.on(engine);
+  }
+  
+  public RequirementNotSatisfied getRequirementNotSatisfied() {
+    return RequirementNotSatisfied.instance();
+  }
+  
+  public RequirementNotSatisfied.Matcher getRequirementNotSatisfied(final ViatraQueryEngine engine) {
+    return RequirementNotSatisfied.Matcher.on(engine);
+  }
+  
+  public AverageFreeMemoryMetric getAverageFreeMemoryMetric() {
+    return AverageFreeMemoryMetric.instance();
+  }
+  
+  public AverageFreeMemoryMetric.Matcher getAverageFreeMemoryMetric(final ViatraQueryEngine engine) {
+    return AverageFreeMemoryMetric.Matcher.on(engine);
+  }
+  
+  public AverageFreeHddMetric getAverageFreeHddMetric() {
+    return AverageFreeHddMetric.instance();
+  }
+  
+  public AverageFreeHddMetric.Matcher getAverageFreeHddMetric(final ViatraQueryEngine engine) {
+    return AverageFreeHddMetric.Matcher.on(engine);
+  }
+  
+  public CostMetric getCostMetric() {
+    return CostMetric.instance();
+  }
+  
+  public CostMetric.Matcher getCostMetric(final ViatraQueryEngine engine) {
+    return CostMetric.Matcher.on(engine);
+  }
+  
+  public CpsCost getCpsCost() {
+    return CpsCost.instance();
+  }
+  
+  public CpsCost.Matcher getCpsCost(final ViatraQueryEngine engine) {
+    return CpsCost.Matcher.on(engine);
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/InstanceDoesNotSatisfyRequirement.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/InstanceDoesNotSatisfyRequirement.java
new file mode 100644
index 00000000..14deb337
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/InstanceDoesNotSatisfyRequirement.java
@@ -0,0 +1,716 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.Requirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity = "error", key = {Req, App},
+ *              message = "Requirement must be satisfied by the required application type.")
+ *         pattern instanceDoesNotSatisfyRequirement(Req : Requirement, App : ApplicationInstance) {
+ *              Requirement.instances(Req, App);
+ *              neg find satisfyingInstance(Req, App);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class InstanceDoesNotSatisfyRequirement extends BaseGeneratedEMFQuerySpecification<InstanceDoesNotSatisfyRequirement.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.instanceDoesNotSatisfyRequirement pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private Requirement fReq;
+    
+    private ApplicationInstance fApp;
+    
+    private static List<String> parameterNames = makeImmutableList("Req", "App");
+    
+    private Match(final Requirement pReq, final ApplicationInstance pApp) {
+      this.fReq = pReq;
+      this.fApp = pApp;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Req".equals(parameterName)) return this.fReq;
+      if ("App".equals(parameterName)) return this.fApp;
+      return null;
+    }
+    
+    public Requirement getReq() {
+      return this.fReq;
+    }
+    
+    public ApplicationInstance getApp() {
+      return this.fApp;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Req".equals(parameterName) ) {
+          this.fReq = (Requirement) newValue;
+          return true;
+      }
+      if ("App".equals(parameterName) ) {
+          this.fApp = (ApplicationInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setReq(final Requirement pReq) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fReq = pReq;
+    }
+    
+    public void setApp(final ApplicationInstance pApp) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fApp = pApp;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.instanceDoesNotSatisfyRequirement";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return InstanceDoesNotSatisfyRequirement.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fReq, fApp};
+    }
+    
+    @Override
+    public InstanceDoesNotSatisfyRequirement.Match toImmutable() {
+      return isMutable() ? newMatch(fReq, fApp) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Req\"=" + prettyPrintValue(fReq) + ", ");
+      result.append("\"App\"=" + prettyPrintValue(fApp));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fReq, fApp);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof InstanceDoesNotSatisfyRequirement.Match)) {
+          InstanceDoesNotSatisfyRequirement.Match other = (InstanceDoesNotSatisfyRequirement.Match) obj;
+          return Objects.equals(fReq, other.fReq) && Objects.equals(fApp, other.fApp);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public InstanceDoesNotSatisfyRequirement specification() {
+      return InstanceDoesNotSatisfyRequirement.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static InstanceDoesNotSatisfyRequirement.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static InstanceDoesNotSatisfyRequirement.Match newMutableMatch(final Requirement pReq, final ApplicationInstance pApp) {
+      return new Mutable(pReq, pApp);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static InstanceDoesNotSatisfyRequirement.Match newMatch(final Requirement pReq, final ApplicationInstance pApp) {
+      return new Immutable(pReq, pApp);
+    }
+    
+    private static final class Mutable extends InstanceDoesNotSatisfyRequirement.Match {
+      Mutable(final Requirement pReq, final ApplicationInstance pApp) {
+        super(pReq, pApp);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends InstanceDoesNotSatisfyRequirement.Match {
+      Immutable(final Requirement pReq, final ApplicationInstance pApp) {
+        super(pReq, pApp);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.instanceDoesNotSatisfyRequirement pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity = "error", key = {Req, App},
+   *    message = "Requirement must be satisfied by the required application type.")
+   * pattern instanceDoesNotSatisfyRequirement(Req : Requirement, App : ApplicationInstance) {
+   *    Requirement.instances(Req, App);
+   *    neg find satisfyingInstance(Req, App);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see InstanceDoesNotSatisfyRequirement
+   * 
+   */
+  public static class Matcher extends BaseMatcher<InstanceDoesNotSatisfyRequirement.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static InstanceDoesNotSatisfyRequirement.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static InstanceDoesNotSatisfyRequirement.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_REQ = 0;
+    
+    private static final int POSITION_APP = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(InstanceDoesNotSatisfyRequirement.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<InstanceDoesNotSatisfyRequirement.Match> getAllMatches(final Requirement pReq, final ApplicationInstance pApp) {
+      return rawStreamAllMatches(new Object[]{pReq, pApp}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<InstanceDoesNotSatisfyRequirement.Match> streamAllMatches(final Requirement pReq, final ApplicationInstance pApp) {
+      return rawStreamAllMatches(new Object[]{pReq, pApp});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<InstanceDoesNotSatisfyRequirement.Match> getOneArbitraryMatch(final Requirement pReq, final ApplicationInstance pApp) {
+      return rawGetOneArbitraryMatch(new Object[]{pReq, pApp});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Requirement pReq, final ApplicationInstance pApp) {
+      return rawHasMatch(new Object[]{pReq, pApp});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Requirement pReq, final ApplicationInstance pApp) {
+      return rawCountMatches(new Object[]{pReq, pApp});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final Requirement pReq, final ApplicationInstance pApp, final Consumer<? super InstanceDoesNotSatisfyRequirement.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pReq, pApp}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param pApp the fixed value of pattern parameter App, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public InstanceDoesNotSatisfyRequirement.Match newMatch(final Requirement pReq, final ApplicationInstance pApp) {
+      return InstanceDoesNotSatisfyRequirement.Match.newMatch(pReq, pApp);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Requirement> rawStreamAllValuesOfReq(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_REQ, parameters).map(Requirement.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Requirement> getAllValuesOfReq() {
+      return rawStreamAllValuesOfReq(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Requirement> streamAllValuesOfReq() {
+      return rawStreamAllValuesOfReq(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Requirement> streamAllValuesOfReq(final InstanceDoesNotSatisfyRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfReq(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Requirement> streamAllValuesOfReq(final ApplicationInstance pApp) {
+      return rawStreamAllValuesOfReq(new Object[]{null, pApp});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Requirement> getAllValuesOfReq(final InstanceDoesNotSatisfyRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfReq(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Requirement> getAllValuesOfReq(final ApplicationInstance pApp) {
+      return rawStreamAllValuesOfReq(new Object[]{null, pApp}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<ApplicationInstance> rawStreamAllValuesOfApp(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_APP, parameters).map(ApplicationInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp() {
+      return rawStreamAllValuesOfApp(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp() {
+      return rawStreamAllValuesOfApp(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp(final InstanceDoesNotSatisfyRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfApp(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<ApplicationInstance> streamAllValuesOfApp(final Requirement pReq) {
+      return rawStreamAllValuesOfApp(new Object[]{pReq, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp(final InstanceDoesNotSatisfyRequirement.Match partialMatch) {
+      return rawStreamAllValuesOfApp(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for App.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<ApplicationInstance> getAllValuesOfApp(final Requirement pReq) {
+      return rawStreamAllValuesOfApp(new Object[]{pReq, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected InstanceDoesNotSatisfyRequirement.Match tupleToMatch(final Tuple t) {
+      try {
+          return InstanceDoesNotSatisfyRequirement.Match.newMatch((Requirement) t.get(POSITION_REQ), (ApplicationInstance) t.get(POSITION_APP));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected InstanceDoesNotSatisfyRequirement.Match arrayToMatch(final Object[] match) {
+      try {
+          return InstanceDoesNotSatisfyRequirement.Match.newMatch((Requirement) match[POSITION_REQ], (ApplicationInstance) match[POSITION_APP]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected InstanceDoesNotSatisfyRequirement.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return InstanceDoesNotSatisfyRequirement.Match.newMutableMatch((Requirement) match[POSITION_REQ], (ApplicationInstance) match[POSITION_APP]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<InstanceDoesNotSatisfyRequirement.Matcher> querySpecification() {
+      return InstanceDoesNotSatisfyRequirement.instance();
+    }
+  }
+  
+  private InstanceDoesNotSatisfyRequirement() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static InstanceDoesNotSatisfyRequirement instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected InstanceDoesNotSatisfyRequirement.Matcher instantiate(final ViatraQueryEngine engine) {
+    return InstanceDoesNotSatisfyRequirement.Matcher.on(engine);
+  }
+  
+  @Override
+  public InstanceDoesNotSatisfyRequirement.Matcher instantiate() {
+    return InstanceDoesNotSatisfyRequirement.Matcher.create();
+  }
+  
+  @Override
+  public InstanceDoesNotSatisfyRequirement.Match newEmptyMatch() {
+    return InstanceDoesNotSatisfyRequirement.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public InstanceDoesNotSatisfyRequirement.Match newMatch(final Object... parameters) {
+    return InstanceDoesNotSatisfyRequirement.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.Requirement) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement (visibility: PUBLIC, simpleName: InstanceDoesNotSatisfyRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement (visibility: PUBLIC, simpleName: InstanceDoesNotSatisfyRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final InstanceDoesNotSatisfyRequirement INSTANCE = new InstanceDoesNotSatisfyRequirement();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final InstanceDoesNotSatisfyRequirement.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Req = new PParameter("Req", "hu.bme.mit.inf.dslreasoner.domains.cps.Requirement", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "Requirement")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Req, parameter_App);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.instanceDoesNotSatisfyRequirement";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Req","App");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Req, parameter_Req),
+             new ExportedParameter(body, var_App, parameter_App)
+          ));
+          //    Requirement.instances(Req, App)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "Requirement", "instances")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new Equality(body, var__virtual_0_, var_App);
+          //    neg find satisfyingInstance(Req, App)
+          new NegativePatternCall(body, Tuples.flatTupleOf(var_Req, var_App), SatisfyingInstance.instance().getInternalQueryRepresentation());
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("Req"), 
+                              new ParameterReference("App")
+                              }));
+          annotation.addAttribute("message", "Requirement must be satisfied by the required application type.");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableHdd.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableHdd.java
new file mode 100644
index 00000000..41615598
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableHdd.java
@@ -0,0 +1,579 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity = "error", key = {Host},
+ *              message = "Insufficient HDD available on host.")
+ *         pattern notEnoughAvailableHdd(Host : HostInstance) {
+ *              find availableHdd(Host, Hdd);
+ *              check(Hdd {@literal <} 0);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class NotEnoughAvailableHdd extends BaseGeneratedEMFQuerySpecification<NotEnoughAvailableHdd.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableHdd pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private static List<String> parameterNames = makeImmutableList("Host");
+    
+    private Match(final HostInstance pHost) {
+      this.fHost = pHost;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableHdd";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return NotEnoughAvailableHdd.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost};
+    }
+    
+    @Override
+    public NotEnoughAvailableHdd.Match toImmutable() {
+      return isMutable() ? newMatch(fHost) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof NotEnoughAvailableHdd.Match)) {
+          NotEnoughAvailableHdd.Match other = (NotEnoughAvailableHdd.Match) obj;
+          return Objects.equals(fHost, other.fHost);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public NotEnoughAvailableHdd specification() {
+      return NotEnoughAvailableHdd.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static NotEnoughAvailableHdd.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static NotEnoughAvailableHdd.Match newMutableMatch(final HostInstance pHost) {
+      return new Mutable(pHost);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static NotEnoughAvailableHdd.Match newMatch(final HostInstance pHost) {
+      return new Immutable(pHost);
+    }
+    
+    private static final class Mutable extends NotEnoughAvailableHdd.Match {
+      Mutable(final HostInstance pHost) {
+        super(pHost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends NotEnoughAvailableHdd.Match {
+      Immutable(final HostInstance pHost) {
+        super(pHost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableHdd pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity = "error", key = {Host},
+   *    message = "Insufficient HDD available on host.")
+   * pattern notEnoughAvailableHdd(Host : HostInstance) {
+   *    find availableHdd(Host, Hdd);
+   *    check(Hdd {@literal <} 0);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see NotEnoughAvailableHdd
+   * 
+   */
+  public static class Matcher extends BaseMatcher<NotEnoughAvailableHdd.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static NotEnoughAvailableHdd.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static NotEnoughAvailableHdd.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(NotEnoughAvailableHdd.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<NotEnoughAvailableHdd.Match> getAllMatches(final HostInstance pHost) {
+      return rawStreamAllMatches(new Object[]{pHost}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<NotEnoughAvailableHdd.Match> streamAllMatches(final HostInstance pHost) {
+      return rawStreamAllMatches(new Object[]{pHost});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<NotEnoughAvailableHdd.Match> getOneArbitraryMatch(final HostInstance pHost) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost) {
+      return rawHasMatch(new Object[]{pHost});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost) {
+      return rawCountMatches(new Object[]{pHost});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Consumer<? super NotEnoughAvailableHdd.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public NotEnoughAvailableHdd.Match newMatch(final HostInstance pHost) {
+      return NotEnoughAvailableHdd.Match.newMatch(pHost);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    @Override
+    protected NotEnoughAvailableHdd.Match tupleToMatch(final Tuple t) {
+      try {
+          return NotEnoughAvailableHdd.Match.newMatch((HostInstance) t.get(POSITION_HOST));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected NotEnoughAvailableHdd.Match arrayToMatch(final Object[] match) {
+      try {
+          return NotEnoughAvailableHdd.Match.newMatch((HostInstance) match[POSITION_HOST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected NotEnoughAvailableHdd.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return NotEnoughAvailableHdd.Match.newMutableMatch((HostInstance) match[POSITION_HOST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<NotEnoughAvailableHdd.Matcher> querySpecification() {
+      return NotEnoughAvailableHdd.instance();
+    }
+  }
+  
+  private NotEnoughAvailableHdd() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static NotEnoughAvailableHdd instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected NotEnoughAvailableHdd.Matcher instantiate(final ViatraQueryEngine engine) {
+    return NotEnoughAvailableHdd.Matcher.on(engine);
+  }
+  
+  @Override
+  public NotEnoughAvailableHdd.Matcher instantiate() {
+    return NotEnoughAvailableHdd.Matcher.create();
+  }
+  
+  @Override
+  public NotEnoughAvailableHdd.Match newEmptyMatch() {
+    return NotEnoughAvailableHdd.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public NotEnoughAvailableHdd.Match newMatch(final Object... parameters) {
+    return NotEnoughAvailableHdd.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd (visibility: PUBLIC, simpleName: NotEnoughAvailableHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd (visibility: PUBLIC, simpleName: NotEnoughAvailableHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final NotEnoughAvailableHdd INSTANCE = new NotEnoughAvailableHdd();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final NotEnoughAvailableHdd.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableHdd";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Hdd = body.getOrCreateVariableByName("Hdd");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host)
+          ));
+          //    find availableHdd(Host, Hdd)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Hdd), AvailableHdd.instance().getInternalQueryRepresentation());
+          //    check(Hdd < 0)
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern notEnoughAvailableHdd";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("Hdd");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer Hdd = (Integer) provider.getValue("Hdd");
+                  return evaluateExpression_1_1(Hdd);
+              }
+          },  null); 
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("Host")
+                              }));
+          annotation.addAttribute("message", "Insufficient HDD available on host.");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static boolean evaluateExpression_1_1(final Integer Hdd) {
+    return ((Hdd).intValue() < 0);
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableMemory.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableMemory.java
new file mode 100644
index 00000000..4803ec3a
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/NotEnoughAvailableMemory.java
@@ -0,0 +1,579 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity = "error", key = {Host},
+ *              message = "Insufficient memory available on host.")
+ *         pattern notEnoughAvailableMemory(Host : HostInstance) {
+ *              find availableMemory(Host, Memory);
+ *              check(Memory {@literal <} 0);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class NotEnoughAvailableMemory extends BaseGeneratedEMFQuerySpecification<NotEnoughAvailableMemory.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableMemory pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private static List<String> parameterNames = makeImmutableList("Host");
+    
+    private Match(final HostInstance pHost) {
+      this.fHost = pHost;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableMemory";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return NotEnoughAvailableMemory.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost};
+    }
+    
+    @Override
+    public NotEnoughAvailableMemory.Match toImmutable() {
+      return isMutable() ? newMatch(fHost) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof NotEnoughAvailableMemory.Match)) {
+          NotEnoughAvailableMemory.Match other = (NotEnoughAvailableMemory.Match) obj;
+          return Objects.equals(fHost, other.fHost);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public NotEnoughAvailableMemory specification() {
+      return NotEnoughAvailableMemory.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static NotEnoughAvailableMemory.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static NotEnoughAvailableMemory.Match newMutableMatch(final HostInstance pHost) {
+      return new Mutable(pHost);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static NotEnoughAvailableMemory.Match newMatch(final HostInstance pHost) {
+      return new Immutable(pHost);
+    }
+    
+    private static final class Mutable extends NotEnoughAvailableMemory.Match {
+      Mutable(final HostInstance pHost) {
+        super(pHost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends NotEnoughAvailableMemory.Match {
+      Immutable(final HostInstance pHost) {
+        super(pHost);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableMemory pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity = "error", key = {Host},
+   *    message = "Insufficient memory available on host.")
+   * pattern notEnoughAvailableMemory(Host : HostInstance) {
+   *    find availableMemory(Host, Memory);
+   *    check(Memory {@literal <} 0);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see NotEnoughAvailableMemory
+   * 
+   */
+  public static class Matcher extends BaseMatcher<NotEnoughAvailableMemory.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static NotEnoughAvailableMemory.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static NotEnoughAvailableMemory.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(NotEnoughAvailableMemory.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<NotEnoughAvailableMemory.Match> getAllMatches(final HostInstance pHost) {
+      return rawStreamAllMatches(new Object[]{pHost}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<NotEnoughAvailableMemory.Match> streamAllMatches(final HostInstance pHost) {
+      return rawStreamAllMatches(new Object[]{pHost});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<NotEnoughAvailableMemory.Match> getOneArbitraryMatch(final HostInstance pHost) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost) {
+      return rawHasMatch(new Object[]{pHost});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost) {
+      return rawCountMatches(new Object[]{pHost});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Consumer<? super NotEnoughAvailableMemory.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public NotEnoughAvailableMemory.Match newMatch(final HostInstance pHost) {
+      return NotEnoughAvailableMemory.Match.newMatch(pHost);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    @Override
+    protected NotEnoughAvailableMemory.Match tupleToMatch(final Tuple t) {
+      try {
+          return NotEnoughAvailableMemory.Match.newMatch((HostInstance) t.get(POSITION_HOST));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected NotEnoughAvailableMemory.Match arrayToMatch(final Object[] match) {
+      try {
+          return NotEnoughAvailableMemory.Match.newMatch((HostInstance) match[POSITION_HOST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected NotEnoughAvailableMemory.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return NotEnoughAvailableMemory.Match.newMutableMatch((HostInstance) match[POSITION_HOST]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<NotEnoughAvailableMemory.Matcher> querySpecification() {
+      return NotEnoughAvailableMemory.instance();
+    }
+  }
+  
+  private NotEnoughAvailableMemory() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static NotEnoughAvailableMemory instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected NotEnoughAvailableMemory.Matcher instantiate(final ViatraQueryEngine engine) {
+    return NotEnoughAvailableMemory.Matcher.on(engine);
+  }
+  
+  @Override
+  public NotEnoughAvailableMemory.Matcher instantiate() {
+    return NotEnoughAvailableMemory.Matcher.create();
+  }
+  
+  @Override
+  public NotEnoughAvailableMemory.Match newEmptyMatch() {
+    return NotEnoughAvailableMemory.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public NotEnoughAvailableMemory.Match newMatch(final Object... parameters) {
+    return NotEnoughAvailableMemory.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory (visibility: PUBLIC, simpleName: NotEnoughAvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory (visibility: PUBLIC, simpleName: NotEnoughAvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final NotEnoughAvailableMemory INSTANCE = new NotEnoughAvailableMemory();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final NotEnoughAvailableMemory.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.notEnoughAvailableMemory";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Memory = body.getOrCreateVariableByName("Memory");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host)
+          ));
+          //    find availableMemory(Host, Memory)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Memory), AvailableMemory.instance().getInternalQueryRepresentation());
+          //    check(Memory < 0)
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern notEnoughAvailableMemory";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("Memory");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer Memory = (Integer) provider.getValue("Memory");
+                  return evaluateExpression_1_1(Memory);
+              }
+          },  null); 
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("Host")
+                              }));
+          annotation.addAttribute("message", "Insufficient memory available on host.");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static boolean evaluateExpression_1_1(final Integer Memory) {
+    return ((Memory).intValue() < 0);
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/RequirementNotSatisfied.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/RequirementNotSatisfied.java
new file mode 100644
index 00000000..04066c50
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/RequirementNotSatisfied.java
@@ -0,0 +1,597 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.Requirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.PatternMatchCounter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity = "error", key = {Req},
+ *              message = "Requirement is not satisfied by enough application instances.")
+ *         pattern requirementNotSatisfied(Req : Requirement) {
+ *              Instances == count find satisfyingInstance(Req, _);
+ *              Requirement.count(Req, RequiredCount);
+ *              check(Instances {@literal <} RequiredCount);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class RequirementNotSatisfied extends BaseGeneratedEMFQuerySpecification<RequirementNotSatisfied.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.requirementNotSatisfied pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private Requirement fReq;
+    
+    private static List<String> parameterNames = makeImmutableList("Req");
+    
+    private Match(final Requirement pReq) {
+      this.fReq = pReq;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Req".equals(parameterName)) return this.fReq;
+      return null;
+    }
+    
+    public Requirement getReq() {
+      return this.fReq;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Req".equals(parameterName) ) {
+          this.fReq = (Requirement) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setReq(final Requirement pReq) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fReq = pReq;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.requirementNotSatisfied";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return RequirementNotSatisfied.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fReq};
+    }
+    
+    @Override
+    public RequirementNotSatisfied.Match toImmutable() {
+      return isMutable() ? newMatch(fReq) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Req\"=" + prettyPrintValue(fReq));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fReq);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof RequirementNotSatisfied.Match)) {
+          RequirementNotSatisfied.Match other = (RequirementNotSatisfied.Match) obj;
+          return Objects.equals(fReq, other.fReq);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public RequirementNotSatisfied specification() {
+      return RequirementNotSatisfied.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static RequirementNotSatisfied.Match newEmptyMatch() {
+      return new Mutable(null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static RequirementNotSatisfied.Match newMutableMatch(final Requirement pReq) {
+      return new Mutable(pReq);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static RequirementNotSatisfied.Match newMatch(final Requirement pReq) {
+      return new Immutable(pReq);
+    }
+    
+    private static final class Mutable extends RequirementNotSatisfied.Match {
+      Mutable(final Requirement pReq) {
+        super(pReq);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends RequirementNotSatisfied.Match {
+      Immutable(final Requirement pReq) {
+        super(pReq);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.requirementNotSatisfied pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity = "error", key = {Req},
+   *    message = "Requirement is not satisfied by enough application instances.")
+   * pattern requirementNotSatisfied(Req : Requirement) {
+   *    Instances == count find satisfyingInstance(Req, _);
+   *    Requirement.count(Req, RequiredCount);
+   *    check(Instances {@literal <} RequiredCount);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see RequirementNotSatisfied
+   * 
+   */
+  public static class Matcher extends BaseMatcher<RequirementNotSatisfied.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static RequirementNotSatisfied.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static RequirementNotSatisfied.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_REQ = 0;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(RequirementNotSatisfied.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<RequirementNotSatisfied.Match> getAllMatches(final Requirement pReq) {
+      return rawStreamAllMatches(new Object[]{pReq}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<RequirementNotSatisfied.Match> streamAllMatches(final Requirement pReq) {
+      return rawStreamAllMatches(new Object[]{pReq});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<RequirementNotSatisfied.Match> getOneArbitraryMatch(final Requirement pReq) {
+      return rawGetOneArbitraryMatch(new Object[]{pReq});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Requirement pReq) {
+      return rawHasMatch(new Object[]{pReq});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Requirement pReq) {
+      return rawCountMatches(new Object[]{pReq});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final Requirement pReq, final Consumer<? super RequirementNotSatisfied.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pReq}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pReq the fixed value of pattern parameter Req, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public RequirementNotSatisfied.Match newMatch(final Requirement pReq) {
+      return RequirementNotSatisfied.Match.newMatch(pReq);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Requirement> rawStreamAllValuesOfReq(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_REQ, parameters).map(Requirement.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Requirement> getAllValuesOfReq() {
+      return rawStreamAllValuesOfReq(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Req.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Requirement> streamAllValuesOfReq() {
+      return rawStreamAllValuesOfReq(emptyArray());
+    }
+    
+    @Override
+    protected RequirementNotSatisfied.Match tupleToMatch(final Tuple t) {
+      try {
+          return RequirementNotSatisfied.Match.newMatch((Requirement) t.get(POSITION_REQ));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected RequirementNotSatisfied.Match arrayToMatch(final Object[] match) {
+      try {
+          return RequirementNotSatisfied.Match.newMatch((Requirement) match[POSITION_REQ]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected RequirementNotSatisfied.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return RequirementNotSatisfied.Match.newMutableMatch((Requirement) match[POSITION_REQ]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<RequirementNotSatisfied.Matcher> querySpecification() {
+      return RequirementNotSatisfied.instance();
+    }
+  }
+  
+  private RequirementNotSatisfied() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static RequirementNotSatisfied instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected RequirementNotSatisfied.Matcher instantiate(final ViatraQueryEngine engine) {
+    return RequirementNotSatisfied.Matcher.on(engine);
+  }
+  
+  @Override
+  public RequirementNotSatisfied.Matcher instantiate() {
+    return RequirementNotSatisfied.Matcher.create();
+  }
+  
+  @Override
+  public RequirementNotSatisfied.Match newEmptyMatch() {
+    return RequirementNotSatisfied.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public RequirementNotSatisfied.Match newMatch(final Object... parameters) {
+    return RequirementNotSatisfied.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.Requirement) parameters[0]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied (visibility: PUBLIC, simpleName: RequirementNotSatisfied, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied (visibility: PUBLIC, simpleName: RequirementNotSatisfied, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final RequirementNotSatisfied INSTANCE = new RequirementNotSatisfied();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final RequirementNotSatisfied.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Req = new PParameter("Req", "hu.bme.mit.inf.dslreasoner.domains.cps.Requirement", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "Requirement")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Req);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.requirementNotSatisfied";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Req");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          PVariable var_Instances = body.getOrCreateVariableByName("Instances");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var_RequiredCount = body.getOrCreateVariableByName("RequiredCount");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Req, parameter_Req)
+          ));
+          //    Instances == count find satisfyingInstance(Req, _)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new PatternMatchCounter(body, Tuples.flatTupleOf(var_Req, var___0_), SatisfyingInstance.instance().getInternalQueryRepresentation(), var__virtual_0_);
+          new Equality(body, var_Instances, var__virtual_0_);
+          //    Requirement.count(Req, RequiredCount)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "Requirement", "count")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_1_, var_RequiredCount);
+          //    check(Instances < RequiredCount)
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern requirementNotSatisfied";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("Instances", "RequiredCount");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer Instances = (Integer) provider.getValue("Instances");
+                  Integer RequiredCount = (Integer) provider.getValue("RequiredCount");
+                  return evaluateExpression_1_1(Instances, RequiredCount);
+              }
+          },  null); 
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("Req")
+                              }));
+          annotation.addAttribute("message", "Requirement is not satisfied by enough application instances.");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static boolean evaluateExpression_1_1(final Integer Instances, final Integer RequiredCount) {
+    boolean _lessThan = (Instances.compareTo(RequiredCount) < 0);
+    return _lessThan;
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalHdd.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalHdd.java
new file mode 100644
index 00000000..f91853de
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalHdd.java
@@ -0,0 +1,706 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "totalHdd")
+ *         pattern totalHdd(Host : HostInstance, Hdd : EInt) {
+ *              HostInstance.type.defaultHdd(Host, Hdd);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class TotalHdd extends BaseGeneratedEMFQuerySpecification<TotalHdd.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalHdd pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private Integer fHdd;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "Hdd");
+    
+    private Match(final HostInstance pHost, final Integer pHdd) {
+      this.fHost = pHost;
+      this.fHdd = pHdd;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("Hdd".equals(parameterName)) return this.fHdd;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public Integer getHdd() {
+      return this.fHdd;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("Hdd".equals(parameterName) ) {
+          this.fHdd = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setHdd(final Integer pHdd) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHdd = pHdd;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalHdd";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return TotalHdd.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fHdd};
+    }
+    
+    @Override
+    public TotalHdd.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fHdd) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"Hdd\"=" + prettyPrintValue(fHdd));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fHdd);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof TotalHdd.Match)) {
+          TotalHdd.Match other = (TotalHdd.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fHdd, other.fHdd);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public TotalHdd specification() {
+      return TotalHdd.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static TotalHdd.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static TotalHdd.Match newMutableMatch(final HostInstance pHost, final Integer pHdd) {
+      return new Mutable(pHost, pHdd);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static TotalHdd.Match newMatch(final HostInstance pHost, final Integer pHdd) {
+      return new Immutable(pHost, pHdd);
+    }
+    
+    private static final class Mutable extends TotalHdd.Match {
+      Mutable(final HostInstance pHost, final Integer pHdd) {
+        super(pHost, pHdd);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends TotalHdd.Match {
+      Immutable(final HostInstance pHost, final Integer pHdd) {
+        super(pHost, pHdd);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalHdd pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "totalHdd")
+   * pattern totalHdd(Host : HostInstance, Hdd : EInt) {
+   *    HostInstance.type.defaultHdd(Host, Hdd);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see TotalHdd
+   * 
+   */
+  public static class Matcher extends BaseMatcher<TotalHdd.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static TotalHdd.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static TotalHdd.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_HDD = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(TotalHdd.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<TotalHdd.Match> getAllMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawStreamAllMatches(new Object[]{pHost, pHdd}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<TotalHdd.Match> streamAllMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawStreamAllMatches(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<TotalHdd.Match> getOneArbitraryMatch(final HostInstance pHost, final Integer pHdd) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final Integer pHdd) {
+      return rawHasMatch(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final Integer pHdd) {
+      return rawCountMatches(new Object[]{pHost, pHdd});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Integer pHdd, final Consumer<? super TotalHdd.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pHdd}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pHdd the fixed value of pattern parameter Hdd, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public TotalHdd.Match newMatch(final HostInstance pHost, final Integer pHdd) {
+      return TotalHdd.Match.newMatch(pHost, pHdd);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final TotalHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final Integer pHdd) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pHdd});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final TotalHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final Integer pHdd) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pHdd}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfHdd(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HDD, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd() {
+      return rawStreamAllValuesOfHdd(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd() {
+      return rawStreamAllValuesOfHdd(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd(final TotalHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHdd(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfHdd(final HostInstance pHost) {
+      return rawStreamAllValuesOfHdd(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd(final TotalHdd.Match partialMatch) {
+      return rawStreamAllValuesOfHdd(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Hdd.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfHdd(final HostInstance pHost) {
+      return rawStreamAllValuesOfHdd(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected TotalHdd.Match tupleToMatch(final Tuple t) {
+      try {
+          return TotalHdd.Match.newMatch((HostInstance) t.get(POSITION_HOST), (Integer) t.get(POSITION_HDD));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected TotalHdd.Match arrayToMatch(final Object[] match) {
+      try {
+          return TotalHdd.Match.newMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_HDD]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected TotalHdd.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return TotalHdd.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_HDD]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<TotalHdd.Matcher> querySpecification() {
+      return TotalHdd.instance();
+    }
+  }
+  
+  private TotalHdd() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static TotalHdd instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected TotalHdd.Matcher instantiate(final ViatraQueryEngine engine) {
+    return TotalHdd.Matcher.on(engine);
+  }
+  
+  @Override
+  public TotalHdd.Matcher instantiate() {
+    return TotalHdd.Matcher.create();
+  }
+  
+  @Override
+  public TotalHdd.Match newEmptyMatch() {
+    return TotalHdd.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public TotalHdd.Match newMatch(final Object... parameters) {
+    return TotalHdd.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd (visibility: PUBLIC, simpleName: TotalHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd (visibility: PUBLIC, simpleName: TotalHdd, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final TotalHdd INSTANCE = new TotalHdd();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final TotalHdd.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Hdd = new PParameter("Hdd", "java.lang.Integer", new EDataTypeInSlotsKey((EDataType)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EInt")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Hdd);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalHdd";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Hdd");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Hdd = body.getOrCreateVariableByName("Hdd");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Hdd), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Hdd, parameter_Hdd)
+          ));
+          //    HostInstance.type.defaultHdd(Host, Hdd)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostType", "defaultHdd")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_1_, var_Hdd);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "totalHdd");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalMemory.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalMemory.java
new file mode 100644
index 00000000..e8a11e36
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/TotalMemory.java
@@ -0,0 +1,706 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}QueryBasedFeature(feature = "totalMemory")
+ *         pattern totalMemory(Host : HostInstance, Memory : EInt) {
+ *              HostInstance.type.defaultMemory(Host, Memory);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class TotalMemory extends BaseGeneratedEMFQuerySpecification<TotalMemory.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalMemory pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+   * Each instance is a (possibly partial) substitution of pattern parameters,
+   * usable to represent a match of the pattern in the result of a query,
+   * or to specify the bound (fixed) input parameters when issuing a query.
+   * 
+   * @see Matcher
+   * 
+   */
+  public static abstract class Match extends BasePatternMatch {
+    private HostInstance fHost;
+    
+    private Integer fMemory;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "Memory");
+    
+    private Match(final HostInstance pHost, final Integer pMemory) {
+      this.fHost = pHost;
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("Memory".equals(parameterName)) return this.fMemory;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public Integer getMemory() {
+      return this.fMemory;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("Memory".equals(parameterName) ) {
+          this.fMemory = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setMemory(final Integer pMemory) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalMemory";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return TotalMemory.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fMemory};
+    }
+    
+    @Override
+    public TotalMemory.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fMemory) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"Memory\"=" + prettyPrintValue(fMemory));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fMemory);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof TotalMemory.Match)) {
+          TotalMemory.Match other = (TotalMemory.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fMemory, other.fMemory);
+      } else {
+          // this should be infrequent
+          if (!(obj instanceof IPatternMatch)) {
+              return false;
+          }
+          IPatternMatch otherSig  = (IPatternMatch) obj;
+          return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+      }
+    }
+    
+    @Override
+    public TotalMemory specification() {
+      return TotalMemory.instance();
+    }
+    
+    /**
+     * Returns an empty, mutable match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @return the empty match.
+     * 
+     */
+    public static TotalMemory.Match newEmptyMatch() {
+      return new Mutable(null, null);
+    }
+    
+    /**
+     * Returns a mutable (partial) match.
+     * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+     * 
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static TotalMemory.Match newMutableMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Mutable(pHost, pMemory);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static TotalMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Immutable(pHost, pMemory);
+    }
+    
+    private static final class Mutable extends TotalMemory.Match {
+      Mutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends TotalMemory.Match {
+      Immutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalMemory pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}QueryBasedFeature(feature = "totalMemory")
+   * pattern totalMemory(Host : HostInstance, Memory : EInt) {
+   *    HostInstance.type.defaultMemory(Host, Memory);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see TotalMemory
+   * 
+   */
+  public static class Matcher extends BaseMatcher<TotalMemory.Match> {
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    public static TotalMemory.Matcher on(final ViatraQueryEngine engine) {
+      // check if matcher already exists
+      Matcher matcher = engine.getExistingMatcher(querySpecification());
+      if (matcher == null) {
+          matcher = (Matcher)engine.getMatcher(querySpecification());
+      }
+      return matcher;
+    }
+    
+    /**
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * @return an initialized matcher
+     * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+     * 
+     */
+    public static TotalMemory.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_MEMORY = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(TotalMemory.Matcher.class);
+    
+    /**
+     * Initializes the pattern matcher within an existing VIATRA Query engine.
+     * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+     * 
+     * @param engine the existing VIATRA Query engine in which this matcher will be created.
+     * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+     * 
+     */
+    private Matcher() {
+      super(querySpecification());
+    }
+    
+    /**
+     * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<TotalMemory.Match> getAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<TotalMemory.Match> streamAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<TotalMemory.Match> getOneArbitraryMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+     * under any possible substitution of the unspecified parameters (if any).
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawHasMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawCountMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+     * Neither determinism nor randomness of selection is guaranteed.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @param processor the action that will process the selected match.
+     * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+     * 
+     */
+    public boolean forOneArbitraryMatch(final HostInstance pHost, final Integer pMemory, final Consumer<? super TotalMemory.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pMemory}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public TotalMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return TotalMemory.Match.newMatch(pHost, pMemory);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final TotalMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final TotalMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfMemory(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_MEMORY, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory(final TotalMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </p>
+     * <strong>NOTE</strong>: It is important not to modify the source model while the stream is being processed.
+     * If the match set of the pattern changes during processing, the contents of the stream is <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     *      
+     * @return the Stream of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final TotalMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected TotalMemory.Match tupleToMatch(final Tuple t) {
+      try {
+          return TotalMemory.Match.newMatch((HostInstance) t.get(POSITION_HOST), (Integer) t.get(POSITION_MEMORY));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected TotalMemory.Match arrayToMatch(final Object[] match) {
+      try {
+          return TotalMemory.Match.newMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected TotalMemory.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return TotalMemory.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    /**
+     * @return the singleton instance of the query specification of this pattern
+     * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+     * 
+     */
+    public static IQuerySpecification<TotalMemory.Matcher> querySpecification() {
+      return TotalMemory.instance();
+    }
+  }
+  
+  private TotalMemory() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static TotalMemory instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected TotalMemory.Matcher instantiate(final ViatraQueryEngine engine) {
+    return TotalMemory.Matcher.on(engine);
+  }
+  
+  @Override
+  public TotalMemory.Matcher instantiate() {
+    return TotalMemory.Matcher.create();
+  }
+  
+  @Override
+  public TotalMemory.Match newEmptyMatch() {
+    return TotalMemory.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public TotalMemory.Match newMatch(final Object... parameters) {
+    return TotalMemory.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory (visibility: PUBLIC, simpleName: TotalMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory (visibility: PUBLIC, simpleName: TotalMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final TotalMemory INSTANCE = new TotalMemory();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final TotalMemory.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Memory = new PParameter("Memory", "java.lang.Integer", new EDataTypeInSlotsKey((EDataType)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EInt")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Memory);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.totalMemory";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Memory");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Memory = body.getOrCreateVariableByName("Memory");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Memory), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Memory, parameter_Memory)
+          ));
+          //    HostInstance.type.defaultMemory(Host, Memory)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostType", "defaultMemory")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_1_, var_Memory);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "totalMemory");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/.gitignore b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/.gitignore
new file mode 100644
index 00000000..2f593811
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/.gitignore
@@ -0,0 +1,11 @@
+/.CpsQueriesAll.java._trace
+/.ResourceRequirement.java._trace
+/.MemoryRequirement.java._trace
+/.HddRequirement.java._trace
+/.AllocationWithoutResourceRequirement.java._trace
+/.RequiredType.java._trace
+/.SatisfyingInstance.java._trace
+/.FreeMemoryPercentage.java._trace
+/.FreeHddPercentage.java._trace
+/.ApplicationInstance.java._trace
+/.HostInstanceCost.java._trace
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/CpsQueriesAll.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/CpsQueriesAll.java
new file mode 100644
index 00000000..5f6d161d
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/CpsQueriesAll.java
@@ -0,0 +1,105 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AllocationWithoutResourceRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeHddMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AverageFreeMemoryMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CostMetric;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsApplications;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsCost;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.InstanceDoesNotSatisfyRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.NotEnoughAvailableMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.RequirementNotSatisfied;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedPatternGroup;
+
+/**
+ * A pattern group formed of all patterns defined in CpsQueries.vql.
+ * 
+ * <p>A private group that includes private patterns as well. Only intended use case is for pattern testing.
+ * 
+ * <p> From package hu.bme.mit.inf.dslreasoner.domains.cps.queries, the group contains the definition of the following patterns: <ul>
+ * <li>cpsApplications</li>
+ * <li>cpsHosts</li>
+ * <li>totalMemory</li>
+ * <li>totalHdd</li>
+ * <li>availableMemory</li>
+ * <li>memoryRequirement</li>
+ * <li>availableHdd</li>
+ * <li>hddRequirement</li>
+ * <li>resourceRequirement</li>
+ * <li>allocationWithoutResourceRequirement</li>
+ * <li>notEnoughAvailableMemory</li>
+ * <li>notEnoughAvailableHdd</li>
+ * <li>instanceDoesNotSatisfyRequirement</li>
+ * <li>satisfyingInstance</li>
+ * <li>requirementNotSatisfied</li>
+ * <li>averageFreeMemoryMetric</li>
+ * <li>freeMemoryPercentage</li>
+ * <li>averageFreeHddMetric</li>
+ * <li>freeHddPercentage</li>
+ * <li>costMetric</li>
+ * <li>cpsCost</li>
+ * <li>hostInstanceCost</li>
+ * </ul>
+ * 
+ * @see IQueryGroup
+ * 
+ */
+@SuppressWarnings("all")
+public final class CpsQueriesAll extends BaseGeneratedPatternGroup {
+  /**
+   * Access the pattern group.
+   * 
+   * @return the singleton instance of the group
+   * @throws ViatraQueryRuntimeException if there was an error loading the generated code of pattern specifications
+   * 
+   */
+  public static CpsQueriesAll instance() {
+    if (INSTANCE == null) {
+        INSTANCE = new CpsQueriesAll();
+    }
+    return INSTANCE;
+  }
+  
+  private static CpsQueriesAll INSTANCE;
+  
+  private CpsQueriesAll() {
+    querySpecifications.add(CpsApplications.instance());
+    querySpecifications.add(CpsHosts.instance());
+    querySpecifications.add(TotalMemory.instance());
+    querySpecifications.add(TotalHdd.instance());
+    querySpecifications.add(AvailableMemory.instance());
+    querySpecifications.add(MemoryRequirement.instance());
+    querySpecifications.add(AvailableHdd.instance());
+    querySpecifications.add(HddRequirement.instance());
+    querySpecifications.add(ResourceRequirement.instance());
+    querySpecifications.add(AllocationWithoutResourceRequirement.instance());
+    querySpecifications.add(NotEnoughAvailableMemory.instance());
+    querySpecifications.add(NotEnoughAvailableHdd.instance());
+    querySpecifications.add(InstanceDoesNotSatisfyRequirement.instance());
+    querySpecifications.add(SatisfyingInstance.instance());
+    querySpecifications.add(RequirementNotSatisfied.instance());
+    querySpecifications.add(AverageFreeMemoryMetric.instance());
+    querySpecifications.add(FreeMemoryPercentage.instance());
+    querySpecifications.add(AverageFreeHddMetric.instance());
+    querySpecifications.add(FreeHddPercentage.instance());
+    querySpecifications.add(CostMetric.instance());
+    querySpecifications.add(CpsCost.instance());
+    querySpecifications.add(HostInstanceCost.instance());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeHddPercentage.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeHddPercentage.java
new file mode 100644
index 00000000..366677b5
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeHddPercentage.java
@@ -0,0 +1,172 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableHdd;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalHdd;
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern freeHddPercentage(Host : HostInstance, Free : java Double) {
+ *              find totalHdd(Host, Total);
+ *              find availableHdd(Host, Available);
+ *              Free == eval((Available as double) / Total);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class FreeHddPercentage extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private FreeHddPercentage() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static FreeHddPercentage instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage (visibility: PUBLIC, simpleName: FreeHddPercentage, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage (visibility: PUBLIC, simpleName: FreeHddPercentage, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeHddPercentage, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final FreeHddPercentage INSTANCE = new FreeHddPercentage();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final FreeHddPercentage.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Free = new PParameter("Free", "java.lang.Double", new JavaTransitiveInstancesKey(java.lang.Double.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Free);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.freeHddPercentage";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Free");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Free = body.getOrCreateVariableByName("Free");
+          PVariable var_Total = body.getOrCreateVariableByName("Total");
+          PVariable var_Available = body.getOrCreateVariableByName("Available");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Free), new JavaTransitiveInstancesKey(java.lang.Double.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Free, parameter_Free)
+          ));
+          //    find totalHdd(Host, Total)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Total), TotalHdd.instance().getInternalQueryRepresentation());
+          //    find availableHdd(Host, Available)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Available), AvailableHdd.instance().getInternalQueryRepresentation());
+          //    Free == eval((Available as double) / Total)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern freeHddPercentage";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("Available", "Total");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer Available = (Integer) provider.getValue("Available");
+                  Integer Total = (Integer) provider.getValue("Total");
+                  return evaluateExpression_1_1(Available, Total);
+              }
+          },  var__virtual_0_ ); 
+          new Equality(body, var_Free, var__virtual_0_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+  
+  private static double evaluateExpression_1_1(final Integer Available, final Integer Total) {
+    return (((double) (Available).intValue()) / (Total).intValue());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeMemoryPercentage.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeMemoryPercentage.java
new file mode 100644
index 00000000..bd151ea6
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/FreeMemoryPercentage.java
@@ -0,0 +1,172 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory;
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern freeMemoryPercentage(Host : HostInstance, Free : java Double) {
+ *              find totalMemory(Host, Total);
+ *              find availableMemory(Host, Available);
+ *              Free == eval((Available as double) / Total);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class FreeMemoryPercentage extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private FreeMemoryPercentage() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static FreeMemoryPercentage instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage (visibility: PUBLIC, simpleName: FreeMemoryPercentage, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage (visibility: PUBLIC, simpleName: FreeMemoryPercentage, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.FreeMemoryPercentage, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final FreeMemoryPercentage INSTANCE = new FreeMemoryPercentage();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final FreeMemoryPercentage.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Free = new PParameter("Free", "java.lang.Double", new JavaTransitiveInstancesKey(java.lang.Double.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Free);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.freeMemoryPercentage";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Free");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Free = body.getOrCreateVariableByName("Free");
+          PVariable var_Total = body.getOrCreateVariableByName("Total");
+          PVariable var_Available = body.getOrCreateVariableByName("Available");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Free), new JavaTransitiveInstancesKey(java.lang.Double.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Free, parameter_Free)
+          ));
+          //    find totalMemory(Host, Total)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Total), TotalMemory.instance().getInternalQueryRepresentation());
+          //    find availableMemory(Host, Available)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_Available), AvailableMemory.instance().getInternalQueryRepresentation());
+          //    Free == eval((Available as double) / Total)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern freeMemoryPercentage";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("Available", "Total");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer Available = (Integer) provider.getValue("Available");
+                  Integer Total = (Integer) provider.getValue("Total");
+                  return evaluateExpression_1_1(Available, Total);
+              }
+          },  var__virtual_0_ ); 
+          new Equality(body, var_Free, var__virtual_0_);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+  
+  private static double evaluateExpression_1_1(final Integer Available, final Integer Total) {
+    return (((double) (Available).intValue()) / (Total).intValue());
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HddRequirement.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HddRequirement.java
new file mode 100644
index 00000000..fbe7a46b
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HddRequirement.java
@@ -0,0 +1,151 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement;
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern hddRequirement(Host : HostInstance, App : ApplicationInstance, Hdd : EInt) {
+ *              find resourceRequirement(Host, App, Req);
+ *              ResourceRequirement.requiredHdd(Req, Hdd);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class HddRequirement extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private HddRequirement() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static HddRequirement instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement (visibility: PUBLIC, simpleName: HddRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement (visibility: PUBLIC, simpleName: HddRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HddRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final HddRequirement INSTANCE = new HddRequirement();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final HddRequirement.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Hdd = new PParameter("Hdd", "java.lang.Integer", new EDataTypeInSlotsKey((EDataType)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EInt")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_App, parameter_Hdd);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.hddRequirement";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","App","Hdd");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          PVariable var_Hdd = body.getOrCreateVariableByName("Hdd");
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Hdd), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_App, parameter_App),
+             new ExportedParameter(body, var_Hdd, parameter_Hdd)
+          ));
+          //    find resourceRequirement(Host, App, Req)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_App, var_Req), ResourceRequirement.instance().getInternalQueryRepresentation());
+          //    ResourceRequirement.requiredHdd(Req, Hdd)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ResourceRequirement")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ResourceRequirement", "requiredHdd")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_0_, var_Hdd);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HostInstanceCost.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HostInstanceCost.java
new file mode 100644
index 00000000..767ca342
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/HostInstanceCost.java
@@ -0,0 +1,153 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.CpsHosts;
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern hostInstanceCost(Cps : CyberPhysicalSystem, Host : HostInstance, Cost : EInt) {
+ *              find cpsHosts(Cps, Host);
+ *              HostInstance.type.cost(Host, Cost);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class HostInstanceCost extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private HostInstanceCost() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static HostInstanceCost instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost (visibility: PUBLIC, simpleName: HostInstanceCost, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost (visibility: PUBLIC, simpleName: HostInstanceCost, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.HostInstanceCost, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final HostInstanceCost INSTANCE = new HostInstanceCost();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final HostInstanceCost.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Cps = new PParameter("Cps", "hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "CyberPhysicalSystem")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Cost = new PParameter("Cost", "java.lang.Integer", new EDataTypeInSlotsKey((EDataType)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EInt")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Cps, parameter_Host, parameter_Cost);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.hostInstanceCost";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Cps","Host","Cost");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Cps = body.getOrCreateVariableByName("Cps");
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Cost = body.getOrCreateVariableByName("Cost");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cps), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "CyberPhysicalSystem")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Cost), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Cps, parameter_Cps),
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Cost, parameter_Cost)
+          ));
+          //    find cpsHosts(Cps, Host)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Cps, var_Host), CpsHosts.instance().getInternalQueryRepresentation());
+          //    HostInstance.type.cost(Host, Cost)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostType", "cost")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_1_, var_Cost);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/MemoryRequirement.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/MemoryRequirement.java
new file mode 100644
index 00000000..0a24d105
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/MemoryRequirement.java
@@ -0,0 +1,151 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement;
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern memoryRequirement(Host : HostInstance, App : ApplicationInstance, Memory : EInt) {
+ *              find resourceRequirement(Host, App, Req);
+ *              ResourceRequirement.requiredMemory(Req, Memory);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class MemoryRequirement extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private MemoryRequirement() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static MemoryRequirement instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement (visibility: PUBLIC, simpleName: MemoryRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement (visibility: PUBLIC, simpleName: MemoryRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final MemoryRequirement INSTANCE = new MemoryRequirement();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final MemoryRequirement.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Memory = new PParameter("Memory", "java.lang.Integer", new EDataTypeInSlotsKey((EDataType)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EInt")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_App, parameter_Memory);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.memoryRequirement";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","App","Memory");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          PVariable var_Memory = body.getOrCreateVariableByName("Memory");
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Memory), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_App, parameter_App),
+             new ExportedParameter(body, var_Memory, parameter_Memory)
+          ));
+          //    find resourceRequirement(Host, App, Req)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_App, var_Req), ResourceRequirement.instance().getInternalQueryRepresentation());
+          //    ResourceRequirement.requiredMemory(Req, Memory)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ResourceRequirement")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ResourceRequirement", "requiredMemory")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EDataTypeInSlotsKey((EDataType)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EInt")));
+          new Equality(body, var__virtual_0_, var_Memory);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/ResourceRequirement.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/ResourceRequirement.java
new file mode 100644
index 00000000..8c5bdefe
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/ResourceRequirement.java
@@ -0,0 +1,168 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern resourceRequirement(Host : HostInstance, App : ApplicationInstance, Req : ResourceRequirement) {
+ *              ApplicationInstance.allocatedTo(App, Host);
+ *              ApplicationInstance.type.requirements(App, Req);
+ *              HostInstance.type(Host, HostType);
+ *              ResourceRequirement.hostType(Req, HostType);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class ResourceRequirement extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private ResourceRequirement() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static ResourceRequirement instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement (visibility: PUBLIC, simpleName: ResourceRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement (visibility: PUBLIC, simpleName: ResourceRequirement, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.ResourceRequirement, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final ResourceRequirement INSTANCE = new ResourceRequirement();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final ResourceRequirement.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Req = new PParameter("Req", "hu.bme.mit.inf.dslreasoner.domains.cps.ResourceRequirement", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ResourceRequirement")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_App, parameter_Req);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.resourceRequirement";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","App","Req");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          PVariable var_HostType = body.getOrCreateVariableByName("HostType");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ResourceRequirement")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_App, parameter_App),
+             new ExportedParameter(body, var_Req, parameter_Req)
+          ));
+          //    ApplicationInstance.allocatedTo(App, Host)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationInstance", "allocatedTo")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new Equality(body, var__virtual_0_, var_Host);
+          //    ApplicationInstance.type.requirements(App, Req)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationType")));
+          PVariable var__virtual_2_ = body.getOrCreateVariableByName(".virtual{2}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_, var__virtual_2_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationType", "requirements")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_2_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ResourceRequirement")));
+          new Equality(body, var__virtual_2_, var_Req);
+          //    HostInstance.type(Host, HostType)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          PVariable var__virtual_3_ = body.getOrCreateVariableByName(".virtual{3}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host, var__virtual_3_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "HostInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_3_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          new Equality(body, var__virtual_3_, var_HostType);
+          //    ResourceRequirement.hostType(Req, HostType)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ResourceRequirement")));
+          PVariable var__virtual_4_ = body.getOrCreateVariableByName(".virtual{4}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_4_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ResourceRequirement", "hostType")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_4_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostType")));
+          new Equality(body, var__virtual_4_, var_HostType);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/SatisfyingInstance.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/SatisfyingInstance.java
new file mode 100644
index 00000000..4285101c
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/internal/SatisfyingInstance.java
@@ -0,0 +1,153 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal;
+
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecificationWithGenericMatcher;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+
+/**
+ * A pattern-specific query specification that can instantiate GenericPatternMatcher in a type-safe way.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         private pattern satisfyingInstance(Req : Requirement, App : ApplicationInstance) {
+ *              Requirement.instances(Req, App);
+ *              Requirement.type(Req, Type);
+ *              ApplicationInstance.type(App, Type);
+ *         }
+ * </pre></code>
+ * 
+ * @see GenericPatternMatcher
+ * @see GenericPatternMatch
+ * 
+ */
+@SuppressWarnings("all")
+public final class SatisfyingInstance extends BaseGeneratedEMFQuerySpecificationWithGenericMatcher {
+  private SatisfyingInstance() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static SatisfyingInstance instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance (visibility: PUBLIC, simpleName: SatisfyingInstance, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance (visibility: PUBLIC, simpleName: SatisfyingInstance, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.SatisfyingInstance, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final SatisfyingInstance INSTANCE = new SatisfyingInstance();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> The static initializer is defined using a helper field to work around limitations of the code generator.
+     * 
+     */
+    private static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final SatisfyingInstance.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Req = new PParameter("Req", "hu.bme.mit.inf.dslreasoner.domains.cps.Requirement", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "Requirement")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_App = new PParameter("App", "hu.bme.mit.inf.dslreasoner.domains.cps.ApplicationInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "ApplicationInstance")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Req, parameter_App);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PRIVATE);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.satisfyingInstance";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Req","App");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_Req = body.getOrCreateVariableByName("Req");
+          PVariable var_App = body.getOrCreateVariableByName("App");
+          PVariable var_Type = body.getOrCreateVariableByName("Type");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Req, parameter_Req),
+             new ExportedParameter(body, var_App, parameter_App)
+          ));
+          //    Requirement.instances(Req, App)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "Requirement", "instances")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          new Equality(body, var__virtual_0_, var_App);
+          //    Requirement.type(Req, Type)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "Requirement")));
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Req, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "Requirement", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationType")));
+          new Equality(body, var__virtual_1_, var_Type);
+          //    ApplicationInstance.type(App, Type)
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationInstance")));
+          PVariable var__virtual_2_ = body.getOrCreateVariableByName(".virtual{2}");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_App, var__virtual_2_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/cps", "ApplicationInstance", "type")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_2_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "ApplicationType")));
+          new Equality(body, var__virtual_2_, var_Type);
+          bodies.add(body);
+      }
+      return bodies;
+    }
+  }
+}