pragma experimental SMTChecker; contract C { function f() public payable { assert ((5 + msg.value + msg.value) - (4 + msg.value) > 0); } } // ---- // Warning 4984: (87-100): CHC: Overflow (resulting value larger than 2**256 - 1) happens here.\nCounterexample:\n\n\nTransaction trace:\nC.constructor()\nC.f(){ value: 115792089237316195423570985008687907853269984665640564039457584007913129639931 } // Warning 4984: (87-112): CHC: Overflow (resulting value larger than 2**256 - 1) happens here.\nCounterexample:\n\n\nTransaction trace:\nC.constructor()\nC.f(){ value: 57896044618658097711785492504343953926634992332820282019728792003956564819966 }