Program: 73823
Project: 73823
Buggy source:
public long getPageNumber(InstanceID iid){
  if (!isComplete()) {
    return -1;
  }
  initializePageHintReader();
  if (pageHintReader == null) {
    return -1;
  }
  int version=pageHintReader.getVersion();
  try {
    if (version == IPageHintReader.VERSION_0) {
      long offset=getInstanceOffset(iid);
      if (offset == -1) {
        return -1;
      }
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        PageSection section=hint.getSection(0);
        if (offset >= section.startOffset) {
          return pageNumber;
        }
      }
    }
 else     if (version == IPageHintReader.VERSION_1) {
      long offset=getInstanceOffset(iid);
      if (offset == -1) {
        return -1;
      }
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        int sectionCount=hint.getSectionCount();
        for (int i=0; i < sectionCount; i++) {
          PageSection section=hint.getSection(i);
          if (section.startOffset <= offset && offset <= section.endOffset) {
            return pageNumber;
          }
        }
      }
    }
 else     if (version == IPageHintReader.VERSION_2 || version == IPageHintReader.VERSION_3) {
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        int sectionCount=hint.getSectionCount();
        Fragment fragment=new Fragment(new InstanceIDComparator());
        for (int i=0; i < sectionCount; i++) {
          PageSection section=hint.getSection(i);
          fragment.addFragment(section.starts,section.ends);
        }
        if (fragment.inFragment(iid)) {
          return pageNumber;
        }
      }
    }
  }
 catch (  IOException ex) {
  }
  return -1;
}

Fixed version (ground truth):
public long getPageNumber(InstanceID iid){
  if (!isComplete()) {
    return -1;
  }
  initializePageHintReader();
  if (pageHintReader == null) {
    return -1;
  }
  int version=pageHintReader.getVersion();
  try {
    if (version == IPageHintReader.VERSION_0) {
      long offset=getInstanceOffset(iid);
      if (offset == -1) {
        return -1;
      }
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        PageSection section=hint.getSection(0);
        if (offset >= section.startOffset) {
          return pageNumber;
        }
      }
    }
 else     if (version == IPageHintReader.VERSION_1) {
      long offset=getInstanceOffset(iid);
      if (offset == -1) {
        return -1;
      }
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        int sectionCount=hint.getSectionCount();
        for (int i=0; i < sectionCount; i++) {
          PageSection section=hint.getSection(i);
          if (section.startOffset <= offset && offset <= section.endOffset) {
            return pageNumber;
          }
        }
      }
    }
 else     if (version == IPageHintReader.VERSION_2 || version == IPageHintReader.VERSION_3 || version == IPageHintReader.VERSION_4) {
      long totalPage=pageHintReader.getTotalPage();
      for (long pageNumber=1; pageNumber <= totalPage; pageNumber++) {
        IPageHint hint=pageHintReader.getPageHint(pageNumber);
        int sectionCount=hint.getSectionCount();
        Fragment fragment=new Fragment(new InstanceIDComparator());
        for (int i=0; i < sectionCount; i++) {
          PageSection section=hint.getSection(i);
          fragment.addFragment(section.starts,section.ends);
        }
        if (fragment.inFragment(iid)) {
          return pageNumber;
        }
      }
    }
  }
 catch (  IOException ex) {
  }
  return -1;
}