pragma experimental SMTChecker; contract C { function f() public pure returns (uint16 x) { x = 0xffff; x += 32; x = x << 8; x = x >> 16; assert(x == 0); // Fails because x = 0. assert(x == 10); } } // ==== // SMTIgnoreCex: yes // ---- // Warning 4984: (109-116): CHC: Overflow (resulting value larger than 65535) happens here. // Warning 6328: (193-208): CHC: Assertion violation happens here.