test/regress/regress0/ite4.smt2

   1 (set-logic QF_UF)
   2 (set-info :status sat)
   3 (declare-sort U 0)
   4 (declare-fun x () U)
   5 (declare-fun y () U)
   6 (declare-fun a () Bool)
   7 (assert (not (= x (ite a (ite a x y) (ite (not a) y x)))))
   8 (check-sat)