*** MODEL %lbl%@80 -> false %lbl%+33 -> true %lbl%+61 -> true x -> 41 tickleBool -> { true -> true false -> true else -> true } *** END_MODEL Optimization3.bpl(10,5): Error BP5001: This assertion might not hold. Execution trace: Optimization3.bpl(8,5): anon0 *** MODEL %lbl%@115 -> false %lbl%+105 -> true %lbl%+56 -> true x@@0 -> 41 y@@0!1!1 -> 719 tickleBool -> { true -> true false -> true else -> true } *** END_MODEL Optimization3.bpl(19,5): Error BP5001: This assertion might not hold. Execution trace: Optimization3.bpl(17,5): anon0 Boogie program verifier finished with 0 verified, 2 errors