Program: 157757
Project: 157757
Buggy source:
private boolean handleLibraryCastableCards(Library library,Game game,UUID targetPlayerId){
  boolean alreadyChosenUse=false;
  Map<UUID,String> libraryCastableCardTracker=new HashMap<>();
  searchForCards:   do {
    for (    Card card : library.getCards(game)) {
      for (      Ability ability : card.getAbilities()) {
        if (ability.getClass() == WhileSearchingPlayFromLibraryAbility.class) {
          libraryCastableCardTracker.put(card.getId(),card.getName() + "String_Node_Str" + card.getId().toString().substring(0,3)+ "String_Node_Str");
        }
      }
    }
    if (!libraryCastableCardTracker.isEmpty()) {
      Player player=game.getPlayer(targetPlayerId);
      if (player != null) {
        if (player.isHuman() && (alreadyChosenUse || player.chooseUse(Outcome.AIDontUseIt,"String_Node_Str",null,game))) {
          ChoiceImpl chooseCard=new ChoiceImpl();
          chooseCard.setMessage("String_Node_Str");
          Set<String> choice=new LinkedHashSet<>();
          for (          Entry<UUID,String> entry : libraryCastableCardTracker.entrySet()) {
            choice.add(new AbstractMap.SimpleEntry<UUID,String>(entry).getValue());
          }
          chooseCard.setChoices(choice);
          while (!choice.isEmpty()) {
            if (player.choose(Outcome.AIDontUseIt,chooseCard,game)) {
              String chosenCard=chooseCard.getChoice();
              for (              Entry<UUID,String> entry : libraryCastableCardTracker.entrySet()) {
                if (chosenCard.equals(entry.getValue())) {
                  Card card=game.getCard(entry.getKey());
                  if (card != null) {
                    player.cast(card.getSpellAbility(),game,false);
                  }
                  chooseCard.clearChoice();
                  libraryCastableCardTracker.clear();
                  alreadyChosenUse=true;
                  continue searchForCards;
                }
              }
              continue;
            }
            break;
          }
          return true;
        }
      }
    }
    break;
  }
 while (alreadyChosenUse);
  return alreadyChosenUse;
}

Fixed version (ground truth):
private boolean handleLibraryCastableCards(Library library,Game game,UUID targetPlayerId){
  boolean alreadyChosenUse=false;
  Map<UUID,String> libraryCastableCardTracker=new HashMap<>();
  searchForCards:   do {
    for (    Card card : library.getCards(game)) {
      for (      Ability ability : card.getAbilities()) {
        if (ability.getClass() == WhileSearchingPlayFromLibraryAbility.class) {
          libraryCastableCardTracker.put(card.getId(),card.getName() + "String_Node_Str" + card.getId().toString().substring(0,3)+ "String_Node_Str");
        }
      }
    }
    if (!libraryCastableCardTracker.isEmpty()) {
      Player player=game.getPlayer(targetPlayerId);
      if (player != null) {
        if (player.isHuman() && (alreadyChosenUse || player.chooseUse(Outcome.AIDontUseIt,"String_Node_Str",null,game))) {
          ChoiceImpl chooseCard=new ChoiceImpl();
          chooseCard.setMessage("String_Node_Str");
          Set<String> choice=new LinkedHashSet<>();
          for (          Entry<UUID,String> entry : libraryCastableCardTracker.entrySet()) {
            choice.add(new AbstractMap.SimpleEntry<>(entry).getValue());
          }
          chooseCard.setChoices(choice);
          while (!choice.isEmpty()) {
            if (player.choose(Outcome.AIDontUseIt,chooseCard,game)) {
              String chosenCard=chooseCard.getChoice();
              for (              Entry<UUID,String> entry : libraryCastableCardTracker.entrySet()) {
                if (chosenCard.equals(entry.getValue())) {
                  Card card=game.getCard(entry.getKey());
                  if (card != null) {
                    player.cast(card.getSpellAbility(),game,false);
                  }
                  chooseCard.clearChoice();
                  libraryCastableCardTracker.clear();
                  alreadyChosenUse=true;
                  continue searchForCards;
                }
              }
              continue;
            }
            break;
          }
          return true;
        }
      }
    }
    break;
  }
 while (alreadyChosenUse);
  return alreadyChosenUse;
}