Program: 90269
Project: 90269
Buggy source:
@Override public MappeableContainer iremove(int begin,int end){
  if ((begin >= end) || (end > (1 << 16))) {
    throw new IllegalArgumentException("String_Node_Str" + begin + "String_Node_Str"+ end+ "String_Node_Str");
  }
  if (begin == end - 1) {
    remove((short)begin);
    return this;
  }
  int bIndex=bufferedUnsignedInterleavedBinarySearch(this.valueslength,0,this.nbrruns,(short)begin);
  int eIndex=bufferedUnsignedInterleavedBinarySearch(this.valueslength,0,this.nbrruns,(short)(end - 1));
  if (bIndex >= 0) {
    if (eIndex < 0) {
      eIndex=-eIndex - 2;
    }
    if (valueLengthContains(end,eIndex)) {
      initValueLength(end,eIndex);
      recoverRoomsInRange(bIndex - 1,eIndex - 1);
    }
 else {
      recoverRoomsInRange(bIndex - 1,eIndex);
    }
  }
 else   if (bIndex < 0 && eIndex >= 0) {
    bIndex=-bIndex - 2;
    if (bIndex >= 0) {
      if (valueLengthContains(begin,bIndex)) {
        closeValueLength(begin - 1,bIndex);
      }
    }
    incrementValue(eIndex);
    decrementLength(eIndex);
    recoverRoomsInRange(bIndex,eIndex - 1);
  }
 else {
    bIndex=-bIndex - 2;
    eIndex=-eIndex - 2;
    if (eIndex >= 0) {
      if (bIndex >= 0) {
        if (bIndex == eIndex) {
          if (valueLengthContains(begin,bIndex)) {
            if (valueLengthContains(end,eIndex)) {
              makeRoomAtIndex(bIndex);
              closeValueLength(begin - 1,bIndex);
              initValueLength(end,bIndex + 1);
              return this;
            }
            closeValueLength(begin - 1,bIndex);
          }
        }
 else {
          if (valueLengthContains(begin,bIndex)) {
            closeValueLength(begin - 1,bIndex);
          }
          if (valueLengthContains(end,eIndex)) {
            initValueLength(end,eIndex);
            eIndex--;
          }
          recoverRoomsInRange(bIndex,eIndex);
        }
      }
 else {
        if (valueLengthContains(end - 1,eIndex)) {
          initValueLength(end,eIndex);
          recoverRoomsInRange(bIndex,eIndex - 1);
        }
 else {
          recoverRoomsInRange(bIndex,eIndex);
        }
      }
    }
  }
  return this;
}

Fixed version (ground truth):
@Override public MappeableContainer iremove(int begin,int end){
  if ((begin >= end) || (end > (1 << 16))) {
    throw new IllegalArgumentException("String_Node_Str" + begin + "String_Node_Str"+ end+ "String_Node_Str");
  }
  if (begin == end - 1) {
    remove((short)begin);
    return this;
  }
  int bIndex=bufferedUnsignedInterleavedBinarySearch(this.valueslength,0,this.nbrruns,(short)begin);
  int eIndex=bufferedUnsignedInterleavedBinarySearch(this.valueslength,0,this.nbrruns,(short)(end - 1));
  if (bIndex >= 0) {
    if (eIndex < 0) {
      eIndex=-eIndex - 2;
    }
    if (valueLengthContains(end,eIndex)) {
      initValueLength(end,eIndex);
      recoverRoomsInRange(bIndex - 1,eIndex - 1);
    }
 else {
      recoverRoomsInRange(bIndex - 1,eIndex);
    }
  }
 else   if (bIndex < 0 && eIndex >= 0) {
    bIndex=-bIndex - 2;
    if (bIndex >= 0) {
      if (valueLengthContains(begin,bIndex)) {
        closeValueLength(begin - 1,bIndex);
      }
    }
    incrementValue(eIndex);
    decrementLength(eIndex);
    recoverRoomsInRange(bIndex,eIndex - 1);
  }
 else {
    bIndex=-bIndex - 2;
    eIndex=-eIndex - 2;
    if (eIndex >= 0) {
      if (bIndex >= 0) {
        if (bIndex == eIndex) {
          if (valueLengthContains(begin,bIndex)) {
            if (valueLengthContains(end,eIndex)) {
              makeRoomAtIndex(bIndex);
              closeValueLength(begin - 1,bIndex);
              initValueLength(end,bIndex + 1);
              return this;
            }
            closeValueLength(begin - 1,bIndex);
          }
        }
 else {
          if (valueLengthContains(begin,bIndex)) {
            closeValueLength(begin - 1,bIndex);
          }
          if (valueLengthContains(end,eIndex)) {
            initValueLength(end,eIndex);
            eIndex--;
          }
          recoverRoomsInRange(bIndex,eIndex);
        }
      }
 else {
        if (valueLengthContains(end,eIndex)) {
          initValueLength(end,eIndex);
          recoverRoomsInRange(bIndex,eIndex - 1);
        }
 else {
          recoverRoomsInRange(bIndex,eIndex);
        }
      }
    }
  }
  return this;
}