Program: 157759
Project: 157759
Buggy source:
@Override public boolean searchLibrary(TargetCardInLibrary target,Game game,UUID targetPlayerId){
  Library searchedLibrary=null;
  String searchInfo=null;
  if (targetPlayerId.equals(playerId)) {
    searchInfo=getLogName() + "String_Node_Str";
    searchedLibrary=library;
  }
 else {
    Player targetPlayer=game.getPlayer(targetPlayerId);
    if (targetPlayer != null) {
      searchInfo=getLogName() + "String_Node_Str" + targetPlayer.getLogName();
      searchedLibrary=targetPlayer.getLibrary();
    }
  }
  if (searchedLibrary == null) {
    return false;
  }
  GameEvent event=GameEvent.getEvent(GameEvent.EventType.SEARCH_LIBRARY,targetPlayerId,playerId,playerId,Integer.MAX_VALUE);
  if (!game.replaceEvent(event)) {
    if (!game.isSimulation()) {
      game.informPlayers(searchInfo);
    }
    TargetCardInLibrary newTarget=target.copy();
    int count;
    int librarySearchLimit=event.getAmount();
    List<Card> cardsFromTop=null;
    do {
      if (librarySearchLimit == Integer.MAX_VALUE) {
        count=searchedLibrary.count(target.getFilter(),game);
      }
 else {
        Player targetPlayer=game.getPlayer(targetPlayerId);
        if (targetPlayer != null) {
          if (cardsFromTop == null) {
            cardsFromTop=new ArrayList<>(targetPlayer.getLibrary().getTopCards(game,librarySearchLimit));
          }
 else {
            cardsFromTop.retainAll(targetPlayer.getLibrary().getCards(game));
          }
        }
        newTarget.setCardLimit(Math.min(librarySearchLimit,cardsFromTop.size()));
        count=Math.min(searchedLibrary.count(target.getFilter(),game),librarySearchLimit);
      }
      if (count < target.getNumberOfTargets()) {
        newTarget.setMinNumberOfTargets(count);
      }
      if (newTarget.choose(Outcome.Neutral,playerId,targetPlayerId,game)) {
        if (targetPlayerId.equals(playerId) && handleLibraryCastableCards(library,game,targetPlayerId)) {
          newTarget.clearChosen();
          continue;
        }
        target.getTargets().clear();
        for (        UUID targetId : newTarget.getTargets()) {
          target.add(targetId,game);
        }
        game.fireEvent(GameEvent.getEvent(GameEvent.EventType.LIBRARY_SEARCHED,targetPlayerId,playerId));
      }
 else       if (targetPlayerId.equals(playerId) && handleLibraryCastableCards(library,game,targetPlayerId)) {
        newTarget.clearChosen();
        continue;
      }
      break;
    }
 while (true);
    return true;
  }
  return false;
}

Fixed version (ground truth):
@Override public boolean searchLibrary(TargetCardInLibrary target,Game game,UUID targetPlayerId){
  Library searchedLibrary=null;
  String searchInfo=null;
  if (targetPlayerId.equals(playerId)) {
    searchInfo=getLogName() + "String_Node_Str";
    searchedLibrary=library;
  }
 else {
    Player targetPlayer=game.getPlayer(targetPlayerId);
    if (targetPlayer != null) {
      searchInfo=getLogName() + "String_Node_Str" + targetPlayer.getLogName();
      searchedLibrary=targetPlayer.getLibrary();
    }
  }
  if (searchedLibrary == null) {
    return false;
  }
  GameEvent event=GameEvent.getEvent(GameEvent.EventType.SEARCH_LIBRARY,targetPlayerId,playerId,playerId,Integer.MAX_VALUE);
  if (!game.replaceEvent(event)) {
    if (!game.isSimulation()) {
      game.informPlayers(searchInfo);
    }
    TargetCardInLibrary newTarget=target.copy();
    int count;
    int librarySearchLimit=event.getAmount();
    List<Card> cardsFromTop=null;
    do {
      if (librarySearchLimit == Integer.MAX_VALUE) {
        count=searchedLibrary.count(target.getFilter(),game);
      }
 else {
        Player targetPlayer=game.getPlayer(targetPlayerId);
        if (targetPlayer == null) {
          return false;
        }
        if (cardsFromTop == null) {
          cardsFromTop=new ArrayList<>(targetPlayer.getLibrary().getTopCards(game,librarySearchLimit));
        }
 else {
          cardsFromTop.retainAll(targetPlayer.getLibrary().getCards(game));
        }
        newTarget.setCardLimit(Math.min(librarySearchLimit,cardsFromTop.size()));
        count=Math.min(searchedLibrary.count(target.getFilter(),game),librarySearchLimit);
      }
      if (count < target.getNumberOfTargets()) {
        newTarget.setMinNumberOfTargets(count);
      }
      if (newTarget.choose(Outcome.Neutral,playerId,targetPlayerId,game)) {
        if (targetPlayerId.equals(playerId) && handleLibraryCastableCards(library,game,targetPlayerId)) {
          newTarget.clearChosen();
          continue;
        }
        target.getTargets().clear();
        for (        UUID targetId : newTarget.getTargets()) {
          target.add(targetId,game);
        }
        game.fireEvent(GameEvent.getEvent(GameEvent.EventType.LIBRARY_SEARCHED,targetPlayerId,playerId));
      }
 else       if (targetPlayerId.equals(playerId) && handleLibraryCastableCards(library,game,targetPlayerId)) {
        newTarget.clearChosen();
        continue;
      }
      break;
    }
 while (true);
    return true;
  }
  return false;
}