Program: 157794
Project: 157794
Buggy source:
@Override public void selectAttackers(Game game,UUID attackingPlayerId){
  updateGameStatePriority("String_Node_Str",game);
  FilterCreatureForCombat filter=filterCreatureForCombat.copy();
  filter.add(new ControllerIdPredicate(attackingPlayerId));
  while (!abort) {
    if (passedAllTurns || passedUntilEndStepBeforeMyTurn || (!getControllingPlayersUserData(game).getUserSkipPrioritySteps().isStopOnDeclareAttackersDuringSkipAction() && (passedTurn || passedTurnSkipStack || passedUntilEndOfTurn|| passedUntilNextMain))) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
    Map<String,Serializable> options=new HashMap<>();
    List<UUID> possibleAttackers=new ArrayList<>();
    for (    Permanent possibleAttacker : game.getBattlefield().getActivePermanents(filter,attackingPlayerId,game)) {
      if (possibleAttacker.canAttack(null,game)) {
        possibleAttackers.add(possibleAttacker.getId());
      }
    }
    options.put(Constants.Option.POSSIBLE_ATTACKERS,(Serializable)possibleAttackers);
    if (!possibleAttackers.isEmpty()) {
      options.put(Constants.Option.SPECIAL_BUTTON,(Serializable)"String_Node_Str");
    }
    if (!isExecutingMacro()) {
      game.fireSelectEvent(playerId,"String_Node_Str",options);
    }
    waitForResponse(game);
    if (response.getString() != null && response.getString().equals("String_Node_Str")) {
      setStoredBookmark(game.bookmarkState());
      UUID attackedDefender=null;
      if (game.getCombat().getDefenders().size() > 1) {
        attackedDefender=selectDefenderForAllAttack(game.getCombat().getDefenders(),game);
      }
 else       if (game.getCombat().getDefenders().size() == 1) {
        attackedDefender=game.getCombat().getDefenders().iterator().next();
      }
      for (      Permanent attacker : game.getBattlefield().getAllActivePermanents(filterCreatureForCombat,getId(),game)) {
        if (game.getContinuousEffects().checkIfThereArePayCostToAttackBlockEffects(GameEvent.getEvent(GameEvent.EventType.DECLARE_ATTACKER,attackedDefender,attacker.getId(),attacker.getControllerId()),game)) {
          continue;
        }
        if (game.getCombat().getCreaturesForcedToAttack().containsKey(attacker.getId())) {
          Set<UUID> possibleDefenders=game.getCombat().getCreaturesForcedToAttack().get(attacker.getId());
          if (!possibleDefenders.isEmpty() && !possibleDefenders.contains(attackedDefender)) {
            declareAttacker(attacker.getId(),possibleDefenders.iterator().next(),game,false);
            continue;
          }
        }
        declareAttacker(attacker.getId(),attackedDefender,game,false);
      }
    }
 else     if (response.getInteger() != null) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
 else     if (response.getBoolean() != null) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
 else     if (response.getUUID() != null) {
      Permanent attacker=game.getPermanent(response.getUUID());
      if (attacker != null) {
        if (filterCreatureForCombat.match(attacker,null,playerId,game)) {
          selectDefender(game.getCombat().getDefenders(),attacker.getId(),game);
        }
 else         if (filterAttack.match(attacker,null,playerId,game) && game.getStack().isEmpty()) {
          removeAttackerIfPossible(game,attacker);
        }
      }
    }
  }
}

Fixed version (ground truth):
@Override public void selectAttackers(Game game,UUID attackingPlayerId){
  updateGameStatePriority("String_Node_Str",game);
  FilterCreatureForCombat filter=filterCreatureForCombat.copy();
  filter.add(new ControllerIdPredicate(attackingPlayerId));
  while (!abort) {
    if (passedAllTurns || passedUntilEndStepBeforeMyTurn || (!getControllingPlayersUserData(game).getUserSkipPrioritySteps().isStopOnDeclareAttackersDuringSkipAction() && (passedTurn || passedTurnSkipStack || passedUntilEndOfTurn|| passedUntilNextMain))) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
    Map<String,Serializable> options=new HashMap<>();
    List<UUID> possibleAttackers=new ArrayList<>();
    for (    Permanent possibleAttacker : game.getBattlefield().getActivePermanents(filter,attackingPlayerId,game)) {
      if (possibleAttacker.canAttack(null,game)) {
        possibleAttackers.add(possibleAttacker.getId());
      }
    }
    options.put(Constants.Option.POSSIBLE_ATTACKERS,(Serializable)possibleAttackers);
    if (!possibleAttackers.isEmpty()) {
      options.put(Constants.Option.SPECIAL_BUTTON,(Serializable)"String_Node_Str");
    }
    prepareForResponse(game);
    if (!isExecutingMacro()) {
      game.fireSelectEvent(playerId,"String_Node_Str",options);
    }
    waitForResponse(game);
    if (response.getString() != null && response.getString().equals("String_Node_Str")) {
      setStoredBookmark(game.bookmarkState());
      UUID attackedDefender=null;
      if (game.getCombat().getDefenders().size() > 1) {
        attackedDefender=selectDefenderForAllAttack(game.getCombat().getDefenders(),game);
      }
 else       if (game.getCombat().getDefenders().size() == 1) {
        attackedDefender=game.getCombat().getDefenders().iterator().next();
      }
      for (      Permanent attacker : game.getBattlefield().getAllActivePermanents(filterCreatureForCombat,getId(),game)) {
        if (game.getContinuousEffects().checkIfThereArePayCostToAttackBlockEffects(GameEvent.getEvent(GameEvent.EventType.DECLARE_ATTACKER,attackedDefender,attacker.getId(),attacker.getControllerId()),game)) {
          continue;
        }
        if (game.getCombat().getCreaturesForcedToAttack().containsKey(attacker.getId())) {
          Set<UUID> possibleDefenders=game.getCombat().getCreaturesForcedToAttack().get(attacker.getId());
          if (!possibleDefenders.isEmpty() && !possibleDefenders.contains(attackedDefender)) {
            declareAttacker(attacker.getId(),possibleDefenders.iterator().next(),game,false);
            continue;
          }
        }
        declareAttacker(attacker.getId(),attackedDefender,game,false);
      }
    }
 else     if (response.getInteger() != null) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
 else     if (response.getBoolean() != null) {
      if (checkIfAttackersValid(game)) {
        return;
      }
    }
 else     if (response.getUUID() != null) {
      Permanent attacker=game.getPermanent(response.getUUID());
      if (attacker != null) {
        if (filterCreatureForCombat.match(attacker,null,playerId,game)) {
          selectDefender(game.getCombat().getDefenders(),attacker.getId(),game);
        }
 else         if (filterAttack.match(attacker,null,playerId,game) && game.getStack().isEmpty()) {
          removeAttackerIfPossible(game,attacker);
        }
      }
    }
  }
}