(benchmark euf_simp6.smt :status unsat :difficulty { unknown } :category { crafted } :logic QF_UF :extrasorts (A) :extrafuns ((x A)) :extrafuns ((f A A)) :formula (let (?cvc_1 (f x)) (let (?cvc_0 (f ?cvc_1)) (not (implies (and (= ?cvc_0 x) (= (f (f (f ?cvc_0))) x)) (= ?cvc_1 x))))) )