// Check that negation of condition is not assumed after the body anymore contract C { function f(uint x) public pure { while (x == 2) { } assert(x != 2); } } // ==== // SMTEngine: all // SMTSolvers: z3 // ---- // Info 1391: CHC: 1 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.