(benchmark Isabelle
:extrasorts ( T2 T1)
:extrafuns (
  (uf_3 T1)
  (uf_2 Int Int T1)
  (uf_1 T1 T2)
 )
:assumption (not (= (uf_1 (uf_2 2 3)) (uf_1 uf_3)))
:assumption (forall (?x1 Int) (?x2 Int) (iff (= (uf_2 ?x1 ?x2) uf_3) (< ?x1 ?x2)))
:formula true
)
