Program: 74376
Project: 74376
Buggy source:
private boolean _matchAtomicEntity(ComponentEntity patternActor,ComponentEntity hostActor){
  if (patternActor instanceof GTEntity && !((GTEntity)patternActor).match(hostActor)) {
    return false;
  }
  int matchSize=_match.size();
  boolean success=true;
  ObjectList patternList=new ObjectList();
  ObjectList hostList=new ObjectList();
  _match.put(patternActor,hostActor);
  if (!(patternActor instanceof GTEntity)) {
    success=patternActor.getClass().isInstance(hostActor);
  }
  GTIngredientList ruleList=null;
  if (success) {
    if (patternActor instanceof GTEntity) {
      try {
        ruleList=((GTEntity)patternActor).getCriteriaAttribute().getIngredientList();
      }
 catch (      MalformedStringException e) {
        success=false;
      }
    }
 else {
      List<?> attributeList=patternActor.attributeList(GTIngredientsAttribute.class);
      if (!attributeList.isEmpty()) {
        try {
          ruleList=((GTIngredientsAttribute)attributeList.get(0)).getIngredientList();
        }
 catch (        MalformedStringException e) {
          success=false;
        }
      }
    }
  }
  if (success && ruleList != null) {
    for (    GTIngredient rule : ruleList) {
      if (rule instanceof AttributeCriterion || rule instanceof SubclassCriterion) {
        success=((Criterion)rule).match(hostActor) == NamedObjMatchResult.MATCH;
        if (!success) {
          break;
        }
      }
    }
  }
  if (success) {
    patternList.addAll((Collection<?>)patternActor.portList());
    hostList.addAll((Collection<?>)hostActor.portList());
  }
  success=success && _matchObject(patternList,hostList);
  if (!success) {
    _match.retain(matchSize);
  }
  return success;
}

Fixed version (ground truth):
private boolean _matchAtomicEntity(ComponentEntity patternActor,ComponentEntity hostActor){
  if (patternActor instanceof GTEntity && !((GTEntity)patternActor).match(hostActor)) {
    return false;
  }
  int matchSize=_match.size();
  boolean success=true;
  ObjectList patternList=new ObjectList();
  ObjectList hostList=new ObjectList();
  _match.put(patternActor,hostActor);
  if (!(patternActor instanceof GTEntity)) {
    success=patternActor.getClass().isInstance(hostActor);
  }
  GTIngredientList ruleList=null;
  if (success) {
    if (patternActor instanceof GTEntity) {
      try {
        ruleList=((GTEntity)patternActor).getCriteriaAttribute().getIngredientList();
      }
 catch (      MalformedStringException e) {
        success=false;
      }
    }
 else {
      List<?> attributeList=patternActor.attributeList(GTIngredientsAttribute.class);
      if (!attributeList.isEmpty()) {
        try {
          ruleList=((GTIngredientsAttribute)attributeList.get(0)).getIngredientList();
        }
 catch (        MalformedStringException e) {
          success=false;
        }
      }
    }
  }
  if (success && ruleList != null) {
    for (    GTIngredient rule : ruleList) {
      if (rule instanceof AttributeCriterion || rule instanceof SubclassCriterion) {
        success=((Criterion)rule).match(hostActor) == NamedObjMatchResult.MATCH;
        if (!success) {
          break;
        }
      }
    }
  }
  if (success) {
    for (    Object portObject : patternActor.portList()) {
      if (!_ignoreObject(portObject)) {
        patternList.add(portObject);
      }
    }
    for (    Object portObject : hostActor.portList()) {
      if (!_ignoreObject(portObject)) {
        hostList.add(portObject);
      }
    }
  }
  success=success && _matchObject(patternList,hostList);
  if (!success) {
    _match.retain(matchSize);
  }
  return success;
}