Program: 92032
Project: 92032
Buggy source:
/** 
 * Reads the next event of the packet into the right event definition.
 * @return The event definition containing the event data that was justread.
 * @throws CTFReaderException If there was a problem reading the trace
 */
public EventDefinition readNextEvent() throws CTFReaderException {
  long eventID=0;
  long timestamp=0;
  if (lostEventsInThisPacket > lostSoFar) {
    EventDefinition eventDef=EventDeclaration.getLostEventDeclaration().createDefinition(streamInputReader);
    eventDef.setTimestamp(this.lastTimestamp);
    ++lostSoFar;
    return eventDef;
  }
  final StructDefinition sehd=streamEventHeaderDef;
  final BitBuffer currentBitBuffer=bitBuffer;
  if (sehd != null) {
    sehd.read(currentBitBuffer);
    Definition idDef=sehd.lookupDefinition("String_Node_Str");
    if (idDef instanceof SimpleDatatypeDefinition) {
      eventID=((SimpleDatatypeDefinition)idDef).getIntegerValue();
    }
    IntegerDefinition timestampDef=sehd.lookupInteger("String_Node_Str");
    if (timestampDef != null) {
      timestamp=calculateTimestamp(timestampDef);
    }
    Definition variantDef=sehd.lookupDefinition("String_Node_Str");
    if (variantDef instanceof VariantDefinition) {
      StructDefinition variantCurrentField=(StructDefinition)((VariantDefinition)variantDef).getCurrentField();
      Definition idIntegerDef=variantCurrentField.lookupDefinition("String_Node_Str");
      if (idIntegerDef instanceof IntegerDefinition) {
        eventID=((IntegerDefinition)idIntegerDef).getValue();
      }
      Definition def=variantCurrentField.lookupDefinition("String_Node_Str");
      if (def instanceof IntegerDefinition) {
        timestamp=calculateTimestamp((IntegerDefinition)def);
      }
    }
  }
  if (streamEventContextDef != null) {
    streamEventContextDef.read(currentBitBuffer);
  }
  EventDefinition eventDef=events.get(eventID);
  if (eventDef == null) {
    throw new CTFReaderException("String_Node_Str" + eventID);
  }
  if (eventDef.getEventContext() != null) {
    eventDef.getEventContext().read(currentBitBuffer);
  }
  if (eventDef.getFields() != null) {
    eventDef.getFields().read(currentBitBuffer);
  }
  eventDef.setTimestamp(timestamp);
  return eventDef;
}

Fixed version (ground truth):
/** 
 * Reads the next event of the packet into the right event definition.
 * @return The event definition containing the event data that was justread.
 * @throws CTFReaderException If there was a problem reading the trace
 */
public EventDefinition readNextEvent() throws CTFReaderException {
  long eventID=0;
  long timestamp=0;
  if (lostEventsInThisPacket > lostSoFar) {
    EventDefinition eventDef=EventDeclaration.getLostEventDeclaration().createDefinition(streamInputReader);
    eventDef.setTimestamp(this.lastTimestamp);
    ++lostSoFar;
    return eventDef;
  }
  final StructDefinition sehd=streamEventHeaderDef;
  final BitBuffer currentBitBuffer=bitBuffer;
  if (sehd != null) {
    sehd.read(currentBitBuffer);
    Definition idDef=sehd.lookupDefinition("String_Node_Str");
    if (idDef instanceof SimpleDatatypeDefinition) {
      eventID=((SimpleDatatypeDefinition)idDef).getIntegerValue();
    }
    IntegerDefinition timestampDef=sehd.lookupInteger("String_Node_Str");
    if (timestampDef != null) {
      timestamp=calculateTimestamp(timestampDef);
    }
    Definition variantDef=sehd.lookupDefinition("String_Node_Str");
    if (variantDef instanceof VariantDefinition) {
      StructDefinition variantCurrentField=(StructDefinition)((VariantDefinition)variantDef).getCurrentField();
      Definition idIntegerDef=variantCurrentField.lookupDefinition("String_Node_Str");
      if (idIntegerDef instanceof IntegerDefinition) {
        eventID=((IntegerDefinition)idIntegerDef).getValue();
      }
      Definition def=variantCurrentField.lookupDefinition("String_Node_Str");
      if (def instanceof IntegerDefinition) {
        timestamp=calculateTimestamp((IntegerDefinition)def);
      }
    }
  }
  if (streamEventContextDef != null) {
    streamEventContextDef.read(currentBitBuffer);
  }
  EventDefinition eventDef=streamInputReader.getEventDefinitions().get(eventID);
  if (eventDef == null) {
    throw new CTFReaderException("String_Node_Str" + eventID);
  }
  if (eventDef.getEventContext() != null) {
    eventDef.getEventContext().read(currentBitBuffer);
  }
  if (eventDef.getFields() != null) {
    eventDef.getFields().read(currentBitBuffer);
  }
  eventDef.setTimestamp(timestamp);
  return eventDef;
}