Program: 30718
Project: 30718
Buggy source:
@Override public boolean hasNext(){
  while (intervalsLo < intervalsHi && partitionLo < partitionHi) {
    final int currentInterval=intervalsHi - 1;
    final int currentPartition=partitionHi - 1;
    long rowCount=reader.openPartition(currentPartition);
    if (rowCount > 0) {
      final ReadOnlyColumn column=reader.getColumn(TableReader.getPrimaryColumnIndex(reader.getColumnBase(currentPartition),timestampIndex));
      final long intervalLo=intervals.getQuick(currentInterval * 2);
      final long intervalHi=intervals.getQuick(currentInterval * 2 + 1);
      if (column.getLong(0) > intervalHi) {
        intervalsHi=currentInterval;
        continue;
      }
      if (column.getLong((rowCount - 1) * 8) < intervalLo) {
        partitionLimit=-1;
        intervalsHi=currentInterval;
        continue;
      }
      long lo=search(column,intervalLo,0,partitionLimit == -1 ? rowCount : partitionLimit);
      if (lo < 0) {
        lo=-lo - 1;
      }
      long hi=search(column,intervalHi,lo,rowCount);
      if (hi < 0) {
        hi=-hi - 1;
      }
 else {
        hi++;
      }
      if (lo < hi) {
        dataFrame.partitionIndex=currentPartition;
        dataFrame.rowLo=lo;
        dataFrame.rowHi=hi;
        if (lo == 0) {
          partitionLimit=-1;
          partitionHi=currentPartition;
        }
 else {
          partitionLimit=lo;
          intervalsHi=currentInterval;
        }
        return true;
      }
      partitionLimit=lo;
      intervalsHi=currentInterval;
    }
 else {
      partitionLo++;
    }
  }
  return false;
}

Fixed version (ground truth):
@Override public boolean hasNext(){
  while (intervalsLo < intervalsHi && partitionLo < partitionHi) {
    final int currentInterval=intervalsHi - 1;
    final int currentPartition=partitionHi - 1;
    long rowCount=reader.openPartition(currentPartition);
    if (rowCount > 0) {
      final ReadOnlyColumn column=reader.getColumn(TableReader.getPrimaryColumnIndex(reader.getColumnBase(currentPartition),timestampIndex));
      final long intervalLo=intervals.getQuick(currentInterval * 2);
      final long intervalHi=intervals.getQuick(currentInterval * 2 + 1);
      if (column.getLong(0) > intervalHi) {
        partitionHi=currentPartition;
        partitionLimit=-1;
        continue;
      }
      if (column.getLong((rowCount - 1) * 8) < intervalLo) {
        partitionLimit=-1;
        intervalsHi=currentInterval;
        continue;
      }
      long lo=search(column,intervalLo,0,partitionLimit == -1 ? rowCount : partitionLimit);
      if (lo < 0) {
        lo=-lo - 1;
      }
      long hi=search(column,intervalHi,lo,rowCount);
      if (hi < 0) {
        hi=-hi - 1;
      }
 else {
        hi++;
      }
      if (lo < hi) {
        dataFrame.partitionIndex=currentPartition;
        dataFrame.rowLo=lo;
        dataFrame.rowHi=hi;
        if (lo == 0) {
          partitionLimit=-1;
          partitionHi=currentPartition;
        }
 else {
          partitionLimit=lo;
          intervalsHi=currentInterval;
        }
        return true;
      }
      partitionLimit=lo;
      intervalsHi=currentInterval;
    }
 else {
      partitionHi=currentPartition;
    }
  }
  return false;
}