Program: 121560
Project: 121560
Buggy source:
public boolean hasNext() throws IOException {
  if (currentSearchedKey == null) {
    return false;
  }
  if (nextDirty) {
    int compareResult=-1;
    int localSkip=0;
    boolean endOfFile=isEndOfKeysFile();
    if (atLeastOneLoadkeys) {
      compareResult=lookupInstance.compareTo(currentSearchedKey);
      if (compareResult == 0) {
        sizeDataToRead=currentValuesSize;
        lookupInstance.copyKeysDataTo(resultLookupInstance);
      }
    }
    startWithNewKey=false;
    if (!endOfFile && compareResult < 0) {
      do {
        loadDataKeys(lookupInstance);
        compareResult=lookupInstance.compareTo(currentSearchedKey);
        endOfFile=isEndOfKeysFile();
        if (compareResult >= 0 || endOfFile) {
          if (compareResult == 0) {
            sizeDataToRead=currentValuesSize;
            lookupInstance.copyKeysDataTo(resultLookupInstance);
            previousValuesSize=0;
            currentValuesSize=0;
          }
 else           if (compareResult > 0) {
            previousValuesSize=currentValuesSize;
          }
          break;
        }
        localSkip+=currentValuesSize;
        if (currentValuesSize > 0) {
          countBeansToSkip++;
        }
        previousValuesSize=currentValuesSize;
      }
 while (true);
    }
    if (compareResult == 0) {
      previousCompareResultMatch=true;
      skipValuesSize+=localSkip;
      hasNext=true;
      noMoreNext=false;
      nextDirty=false;
      return true;
    }
 else     if (compareResult < 0) {
      previousCompareResultMatch=false;
      skipValuesSize+=localSkip;
      nextDirty=true;
      noMoreNext=true;
      hasNext=false;
      return false;
    }
 else {
      previousCompareResultMatch=false;
      skipValuesSize+=localSkip;
      nextDirty=true;
      noMoreNext=false;
      hasNext=false;
      return false;
    }
  }
 else {
    return hasNext;
  }
}

Fixed version (ground truth):
public boolean hasNext() throws IOException {
  if (currentSearchedKey == null) {
    return false;
  }
  if (nextDirty) {
    int compareResult=-1;
    int localSkip=0;
    boolean endOfFile=isEndOfKeysFile();
    if (atLeastOneLoadkeys) {
      compareResult=lookupInstance.compareTo(currentSearchedKey);
      if (compareResult == 0) {
        localSkip-=previousValuesSize;
        sizeDataToRead=currentValuesSize;
        lookupInstance.copyKeysDataTo(resultLookupInstance);
      }
    }
    startWithNewKey=false;
    if (!endOfFile && compareResult < 0) {
      do {
        loadDataKeys(lookupInstance);
        compareResult=lookupInstance.compareTo(currentSearchedKey);
        endOfFile=isEndOfKeysFile();
        if (compareResult >= 0 || endOfFile) {
          if (compareResult == 0) {
            sizeDataToRead=currentValuesSize;
            lookupInstance.copyKeysDataTo(resultLookupInstance);
            previousValuesSize=0;
            currentValuesSize=0;
          }
 else {
            previousValuesSize=currentValuesSize;
            localSkip+=currentValuesSize;
          }
          break;
        }
        localSkip+=currentValuesSize;
        if (currentValuesSize > 0) {
          countBeansToSkip++;
        }
        previousValuesSize=currentValuesSize;
      }
 while (true);
    }
    if (compareResult == 0) {
      previousCompareResultMatch=true;
      skipValuesSize+=localSkip;
      hasNext=true;
      noMoreNext=false;
      nextDirty=false;
      return true;
    }
 else     if (compareResult < 0) {
      previousCompareResultMatch=false;
      skipValuesSize+=localSkip;
      nextDirty=true;
      noMoreNext=true;
      hasNext=false;
      return false;
    }
 else {
      previousCompareResultMatch=false;
      skipValuesSize+=localSkip;
      nextDirty=true;
      noMoreNext=false;
      hasNext=false;
      return false;
    }
  }
 else {
    return hasNext;
  }
}