pragma experimental SMTChecker; contract C { function f() public pure { uint x; do { break; x = 1; } while (x == 0); assert(x == 1); } } // ==== // SMTSolvers: z3 // ---- // Warning 5740: (104-109): Unreachable code. // Warning 5740: (122-128): Unreachable code. // Warning 6328: (133-147): CHC: Assertion violation happens here.\nCounterexample:\n\n\n\n\nTransaction trace:\nconstructor()\nf()