contract C { function f() public pure { uint8 x = 1; uint16 y = 0; assert(x ^ y != 0); x = 0xff; y = 0xff00; assert(x ^ y == 0xff); assert(x ^ y == 0xffff); assert(x ^ y == 0x0000); } } // ==== // SMTEngine: all // ---- // Warning 6328: (122-143): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 255\ny = 65280\n\nTransaction trace:\nC.constructor()\nC.f() // Warning 6328: (174-197): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 255\ny = 65280\n\nTransaction trace:\nC.constructor()\nC.f()