pragma experimental SMTChecker; contract C { mapping (uint => uint) map; function f(uint x, uint p) public { require(x < 10); map[p] = 10; map[p] *= map[p] + x; assert(map[p] <= 190); assert(map[p] < 50); } } // ---- // Warning: (197-216): Error trying to invoke SMT solver. // Warning: (197-216): Assertion violation happens here