contract C { function f() public pure { uint x = 0; int y = 0; while (x < 3 || y == 1) { if (x >= 3) y = 1; ++x; } // BMC loop iteration setting is just enough to leave the loop assert(x == 3); assert(y == 1); // should fail assert(y == 0); } } // ==== // SMTEngine: bmc // SMTSolvers: z3 // BMCLoopIterations: 3 // ---- // Warning 4661: (220-234): BMC: Assertion violation happens here. // Info 6002: BMC: 3 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.