pragma abicoder v1; struct Item { uint x; uint y; } contract D { Item[] public items; function test() public { delete items; items.push(Item(42, 43)); (uint a, uint b) = this.items(0); assert(a == 42); // should hold assert(b == 43); // should hold assert(b == 0); // should fail } } // ==== // SMTEngine: all // ---- // Warning 6328: (267-281): CHC: Assertion violation happens here. // Info 1391: CHC: 2 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.