pragma experimental SMTChecker; contract C { function f() public returns (uint) { while(1==1) try this.f() returns (uint b) { b = 2; } catch { } } } // ---- // Warning 6321: (75-79): Unnamed return variable can remain unassigned. Add an explicit return with value to all non-reverting code paths or name the variable. // Warning 6838: (91-95): BMC: Condition is always true.