contract C { uint[] b; function f() public { require(b.length == 0); b.push() = 1; assert(b[0] == 1); } function g() public { b.push() = 1; assert(b[b.length - 1] == 1); // Fails assert(b[b.length - 1] == 100); } } // ==== // SMTEngine: all // SMTIgnoreCex: yes // SMTIgnoreOS: macos // ---- // Warning 6328: (199-229): CHC: Assertion violation happens here. // Info 1391: CHC: 7 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.