contract C { function f() public pure { uint x; do { break; x = 1; } while (x == 0); assert(x == 0); } } // ==== // SMTEngine: all // SMTSolvers: z3 // ---- // Warning 5740: (71-76): Unreachable code. // Warning 5740: (89-95): Unreachable code. // Info 1391: CHC: 1 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.