contract c { uint x; function f() internal returns (uint) { x = x + 1; return x; } function g() public returns (bool) { x = 0; bool b = (f() == 0) && (f() == 0); assert(x == 1); assert(!b); return b; } } // ==== // SMTEngine: all // ---- // Info 1391: CHC: 3 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.