Program: 9511
Project: 9511
Buggy source:
private int addTypes(OntModel model){
  int changes=0;
  Set<String> dataProperties=new HashSet<String>();
  Set<String> objectProperties=new HashSet<String>();
  Set<String> classes=new HashSet<String>();
  Set<String> individuals=new HashSet<String>();
  Set<Triple> triples=model.getGraph().find(Triple.ANY).toSet();
  ExtendedIterator<OntClass> itClass=model.listNamedClasses();
  while (itClass.hasNext()) {
    classes.add(itClass.next().getURI());
  }
  ExtendedIterator<Individual> itIndividuals=model.listIndividuals();
  while (itIndividuals.hasNext()) {
    individuals.add(itIndividuals.next().getURI());
  }
  ExtendedIterator<DatatypeProperty> itDataProperties=model.listDatatypeProperties();
  while (itDataProperties.hasNext()) {
    dataProperties.add(itDataProperties.next().getURI());
  }
  ExtendedIterator<ObjectProperty> itObjectProperties=model.listObjectProperties();
  while (itObjectProperties.hasNext()) {
    objectProperties.add(itObjectProperties.next().getURI());
  }
  String sUri;
  String pUri;
  String oUri;
  for (  Triple triple : triples) {
    if (triple.getSubject().isBlank() || triple.getPredicate().isBlank() || triple.getObject().isBlank()) {
      System.out.println(triple);
      continue;
    }
    sUri=triple.getSubject().getURI();
    pUri=triple.getPredicate().getURI();
    oUri=triple.getObject().getURI();
    if (individuals.contains(sUri)) {
      log.trace("String_Node_Str",triple);
      if (pUri.equals(RDF.type.getURI())) {
        if (!classes.contains(oUri) && !oUri.equals(OWL.Thing.getURI())) {
          model.getResource(oUri).addProperty(RDF.type,OWL.Class);
          classes.add(oUri);
          changes++;
          log.debug("String_Node_Str",oUri);
        }
      }
 else       if (model.getResource(oUri).isLiteral()) {
        if (!objectProperties.contains(pUri)) {
          model.createDatatypeProperty(pUri);
          dataProperties.add(pUri);
          log.debug("String_Node_Str",pUri);
        }
 else {
          model.createOntProperty(pUri);
          log.info("String_Node_Str",pUri);
        }
        changes++;
      }
 else       if (!individuals.contains(oUri)) {
        model.getResource(oUri).addProperty(RDF.type,OWL.Thing);
        individuals.add(oUri);
        if (!dataProperties.contains(pUri)) {
          model.createObjectProperty(pUri);
          objectProperties.add(pUri);
          log.debug("String_Node_Str",pUri);
        }
 else {
          model.createOntProperty(pUri);
          log.info("String_Node_Str",pUri);
        }
        log.debug("String_Node_Str",oUri);
        changes++;
      }
    }
 else     if (classes.contains(sUri)) {
      log.trace("String_Node_Str",triple);
      if (!classes.contains(oUri)) {
        model.getResource(oUri).addProperty(RDF.type,OWL.Class);
        classes.add(oUri);
        log.debug("String_Node_Str",oUri);
        changes++;
      }
    }
  }
  return changes;
}

Fixed version (ground truth):
private int addTypes(OntModel model){
  int changes=0;
  Set<String> dataProperties=new HashSet<String>();
  Set<String> objectProperties=new HashSet<String>();
  Set<String> classes=new HashSet<String>();
  Set<String> individuals=new HashSet<String>();
  Set<Triple> triples=model.getGraph().find(Triple.ANY).toSet();
  ExtendedIterator<OntClass> itClass=model.listNamedClasses();
  while (itClass.hasNext()) {
    classes.add(itClass.next().getURI());
  }
  ExtendedIterator<Individual> itIndividuals=model.listIndividuals();
  while (itIndividuals.hasNext()) {
    individuals.add(itIndividuals.next().getURI());
  }
  ExtendedIterator<DatatypeProperty> itDataProperties=model.listDatatypeProperties();
  while (itDataProperties.hasNext()) {
    dataProperties.add(itDataProperties.next().getURI());
  }
  ExtendedIterator<ObjectProperty> itObjectProperties=model.listObjectProperties();
  while (itObjectProperties.hasNext()) {
    objectProperties.add(itObjectProperties.next().getURI());
  }
  String sUri;
  String pUri;
  String oUri;
  for (  Triple triple : triples) {
    if (!triple.getSubject().isURI() || !triple.getPredicate().isURI() || !triple.getObject().isURI()) {
      continue;
    }
    sUri=triple.getSubject().getURI();
    pUri=triple.getPredicate().getURI();
    oUri=triple.getObject().getURI();
    if (individuals.contains(sUri)) {
      log.trace("String_Node_Str",triple);
      if (pUri.equals(RDF.type.getURI())) {
        if (!classes.contains(oUri) && !oUri.equals(OWL.Thing.getURI())) {
          model.getResource(oUri).addProperty(RDF.type,OWL.Class);
          classes.add(oUri);
          changes++;
          log.debug("String_Node_Str",oUri);
        }
      }
 else       if (model.getResource(oUri).isLiteral()) {
        if (!objectProperties.contains(pUri)) {
          model.createDatatypeProperty(pUri);
          dataProperties.add(pUri);
          log.debug("String_Node_Str",pUri);
        }
 else {
          model.createOntProperty(pUri);
          log.info("String_Node_Str",pUri);
        }
        changes++;
      }
 else       if (!individuals.contains(oUri)) {
        model.getResource(oUri).addProperty(RDF.type,OWL.Thing);
        individuals.add(oUri);
        if (!dataProperties.contains(pUri)) {
          model.createObjectProperty(pUri);
          objectProperties.add(pUri);
          log.debug("String_Node_Str",pUri);
        }
 else {
          model.createOntProperty(pUri);
          log.info("String_Node_Str",pUri);
        }
        log.debug("String_Node_Str",oUri);
        changes++;
      }
    }
 else     if (classes.contains(sUri)) {
      log.trace("String_Node_Str",triple);
      if (!classes.contains(oUri)) {
        model.getResource(oUri).addProperty(RDF.type,OWL.Class);
        classes.add(oUri);
        log.debug("String_Node_Str",oUri);
        changes++;
      }
    }
  }
  return changes;
}