solidity/test/libsolidity/smtCheckerTests/verification_target/constant_condition_2.sol

contract C {
    function f(uint x) public pure {
        if (x >= 10) { if (x < 10) { revert(); } }
    }
}
// ====
// SMTEngine: all
// ----
// Warning 6838: (77-83='x < 10'): BMC: Condition is always false.