bt.fails("^TransitionTests/bcEIP158ToByzantium","byzantium not supported")
bt.fails(`^TransitionTests/bcHomesteadToDao/DaoTransactions(|_UncleExtradata|_EmptyTransactionAndForkBlocksAhead)\.json`,"issue in test")
bt.fails(`^TransitionTests/bcHomesteadToDao/DaoTransactions(|_UncleExtradata|_EmptyTransactionAndForkBlocksAhead)\.json`,"issue in test")
bt.fails(`^bc(Exploit|Fork|Gas|Multi|Total|State|Random|Uncle|Valid|Wallet).*_Byzantium$`,"byzantium not supported")
bt.fails(`^bcBlockGasLimitTest/(BlockGasLimit2p63m1|TransactionGasHigherThanLimit2p63m1|SuicideTransaction|GasUsedHigherThanBlockGasLimitButNotWithRefundsSuicideFirst|TransactionGasHigherThanLimit2p63m1_2).*_Byzantium$`,"byzantium not supported")