Program: 96048
Project: 96048
Buggy source:
/** 
 * For multi-threading, run executeNode() on a separate thread.
 * @param resultQueue
 * @throws VerdictDBValueException 
 */
public void execute(final DbmsConnection conn,ExecutorService executor) throws VerdictDBValueException {
  if (listeningQueues.size() != latestResults.size()) {
    throw new VerdictDBValueException("String_Node_Str");
  }
  if (!getStatus().equals("String_Node_Str")) {
    return;
  }
  for (  QueryExecutionNode child : dependents) {
    child.execute(conn,executor);
  }
  setStatus("String_Node_Str");
  executor.submit(new Runnable(){
    int process(    DbmsConnection conn,    List<ExecutionInfoToken> tokens){
      try {
        ExecutionInfoToken rs=executeNode(conn,tokens);
        broadcast(rs);
        return 0;
      }
 catch (      VerdictDBException e) {
        e.printStackTrace();
      }
      return -1;
    }
    @Override public void run(){
      while (true) {
        if (listeningQueues.size() == 0) {
          int ret=process(conn,Arrays.<ExecutionInfoToken>asList());
          if (ret == 0) {
            broadcast(ExecutionInfoToken.successToken());
            setSuccess();
          }
 else {
            broadcast(ExecutionInfoToken.failureToken());
            setFailure();
          }
          break;
        }
        readLatestResultsFromDependents();
        if (doesFailedDependentExist()) {
          broadcast(ExecutionInfoToken.failureToken());
          setFailure();
          break;
        }
        if (areDependentsAllSuccess()) {
          broadcast(ExecutionInfoToken.successToken());
          setSuccess();
          break;
        }
        List<ExecutionInfoToken> latestResults=getLatestResultsIfAvailable();
        if (latestResults == null) {
          continue;
        }
        int ret=process(conn,latestResults);
        if (ret != 0) {
          broadcast(ExecutionInfoToken.failureToken());
          setFailure();
          break;
        }
      }
    }
  }
);
}

Fixed version (ground truth):
/** 
 * For multi-threading, run executeNode() on a separate thread.
 * @param resultQueue
 * @throws VerdictDBValueException 
 */
public void execute(final DbmsConnection conn,ExecutorService executor) throws VerdictDBValueException {
  if (!getStatus().equals("String_Node_Str")) {
    return;
  }
  for (  QueryExecutionNode child : dependents) {
    child.execute(conn,executor);
  }
  setStatus("String_Node_Str");
  System.out.println("String_Node_Str" + this);
  executor.submit(new Runnable(){
    int process(    DbmsConnection conn,    List<ExecutionInfoToken> tokens){
      try {
        ExecutionInfoToken rs=executeNode(conn,tokens);
        broadcast(rs);
        return 0;
      }
 catch (      VerdictDBException e) {
        e.printStackTrace();
      }
      return -1;
    }
    @Override public void run(){
      while (true) {
        if (listeningQueues.size() == 0) {
          int ret=process(conn,Arrays.<ExecutionInfoToken>asList());
          if (ret == 0) {
            setSuccess();
            broadcast(ExecutionInfoToken.successToken());
          }
 else {
            setFailure();
            broadcast(ExecutionInfoToken.failureToken());
          }
          break;
        }
        List<ExecutionInfoToken> latestResults=getResultsFromQueues();
        if (latestResults == null) {
          continue;
        }
        if (doesIncludeFailure(latestResults)) {
          setFailure();
          broadcast(ExecutionInfoToken.failureToken());
          break;
        }
        if (areAllSuccess(latestResults)) {
          setSuccess();
          broadcast(ExecutionInfoToken.successToken());
          break;
        }
        int ret=process(conn,latestResults);
        if (ret != 0) {
          setFailure();
          broadcast(ExecutionInfoToken.failureToken());
          break;
        }
      }
    }
  }
);
}