pragma experimental SMTChecker; contract C { bytes32 bhash; address coin; uint dif; uint glimit; uint number; uint tstamp; bytes mdata; address sender; bytes4 sig; uint value; uint gprice; address origin; function f() public payable { bhash = blockhash(12); coin = block.coinbase; dif = block.difficulty; glimit = block.gaslimit; number = block.number; tstamp = block.timestamp; mdata = msg.data; sender = msg.sender; sig = msg.sig; value = msg.value; gprice = tx.gasprice; origin = tx.origin; fi(); assert(bhash == blockhash(122)); assert(coin != block.coinbase); assert(dif != block.difficulty); assert(glimit != block.gaslimit); assert(number != block.number); assert(tstamp != block.timestamp); assert(mdata.length != msg.data.length); assert(sender != msg.sender); assert(sig != msg.sig); assert(value != msg.value); assert(gprice != tx.gasprice); assert(origin != tx.origin); } function fi() internal view { assert(bhash == blockhash(122)); assert(coin != block.coinbase); assert(dif != block.difficulty); assert(glimit != block.gaslimit); assert(number != block.number); assert(tstamp != block.timestamp); assert(mdata.length != msg.data.length); assert(sender != msg.sender); assert(sig != msg.sig); assert(value != msg.value); assert(gprice != tx.gasprice); assert(origin != tx.origin); } } // ---- // Warning 6328: (545-576): CHC: Assertion violation happens here. // Warning 6328: (580-610): CHC: Assertion violation happens here. // Warning 6328: (614-645): CHC: Assertion violation happens here. // Warning 6328: (649-681): CHC: Assertion violation happens here. // Warning 6328: (685-715): CHC: Assertion violation happens here. // Warning 6328: (719-752): CHC: Assertion violation happens here. // Warning 6328: (756-795): CHC: Assertion violation happens here. // Warning 6328: (799-827): CHC: Assertion violation happens here. // Warning 6328: (831-853): CHC: Assertion violation happens here. // Warning 6328: (857-883): CHC: Assertion violation happens here. // Warning 6328: (887-916): CHC: Assertion violation happens here. // Warning 6328: (920-947): CHC: Assertion violation happens here. // Warning 6328: (986-1017): CHC: Assertion violation happens here. // Warning 6328: (1021-1051): CHC: Assertion violation happens here. // Warning 6328: (1055-1086): CHC: Assertion violation happens here. // Warning 6328: (1090-1122): CHC: Assertion violation happens here. // Warning 6328: (1126-1156): CHC: Assertion violation happens here. // Warning 6328: (1160-1193): CHC: Assertion violation happens here. // Warning 6328: (1197-1236): CHC: Assertion violation happens here. // Warning 6328: (1240-1268): CHC: Assertion violation happens here. // Warning 6328: (1272-1294): CHC: Assertion violation happens here. // Warning 6328: (1298-1324): CHC: Assertion violation happens here. // Warning 6328: (1328-1357): CHC: Assertion violation happens here. // Warning 6328: (1361-1388): CHC: Assertion violation happens here.