contract C { int x; function g() public { x = 42; } function f() public { x = 0; bool success = false; try this.g() { success = true; } catch (bytes memory s) { assert(x == 0); // should hold } assert(success); // fails for now, since external call is over-approximated (both success and fail are considered possible) for now even for known code } } // ==== // SMTEngine: all // ---- // Warning 5667: (163-177): Unused try/catch parameter. Remove or comment out the variable name to silence this warning. // Warning 6328: (221-236): CHC: Assertion violation happens here.\nCounterexample:\nx = 0\nsuccess = false\n\nTransaction trace:\nC.constructor()\nState: x = 0\nC.f()