contract C { function left() public pure { uint x = 0x4266; assert(x << 0x0 == 0x4266); // Fails because the above is true. assert(x << 0x0 == 0x4268); } function right() public pure { uint x = 0x4266; assert(x >> 0x0 == 0x4266); // Fails because the above is true. assert(x >> 0x0 == 0x4268); } } // ==== // SMTEngine: all // SMTIgnoreCex: no // ---- // Warning 6328: (133-159): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 16998\n\nTransaction trace:\nC.constructor()\nC.left() // Warning 6328: (286-312): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 16998\n\nTransaction trace:\nC.constructor()\nC.right() // Info 1391: CHC: 2 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.