Program: 158532
Project: 158532
Buggy source:
@Override public boolean apply(Game game,Ability source){
  if (game.getBattlefield().contains(filterFirstStrike,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(FirstStrikeAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterFlying,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(FlyingAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterDeathtouch,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(DeathtouchAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterDoubleStrike,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(DoubleStrikeAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterHaste,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(HasteAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterHexproof,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(HexproofAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterIndestructible,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(IndestructibleAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterLifelink,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(LifelinkAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterMenace,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(new MenaceAbility(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterReach,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(ReachAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterSkulk,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(new SkulkAbility(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterTrample,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(TrampleAbility.getInstance(),Duration.EndOfTurn),source);
  }
  if (game.getBattlefield().contains(filterVigilance,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(VigilanceAbility.getInstance(),Duration.EndOfTurn),source);
  }
  return true;
}

Fixed version (ground truth):
@Override public boolean apply(Game game,Ability source){
  if (game.getBattlefield().contains(filterFirstStrike,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(FirstStrikeAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterFlying,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(FlyingAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterDeathtouch,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(DeathtouchAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterDoubleStrike,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(DoubleStrikeAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterHaste,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(HasteAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterHexproof,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(HexproofAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterIndestructible,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(IndestructibleAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterLifelink,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(LifelinkAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterMenace,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(new MenaceAbility(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterReach,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(ReachAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterSkulk,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(new SkulkAbility(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterTrample,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(TrampleAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  if (game.getBattlefield().contains(filterVigilance,source.getControllerId(),1,game)) {
    game.addEffect(new GainAbilityControlledEffect(VigilanceAbility.getInstance(),Duration.EndOfTurn,filterCreatures),source);
  }
  return true;
}