; COMMAND-LINE: --relational-triggers
; EXPECT: unsat
(set-logic ALL)
(declare-sort U 0)
(declare-fun a () U)
(declare-fun P (U U) Bool)
(assert (forall ((x U)) (= x a)))
(assert (forall ((x U) (y U)) (! (= x a) :pattern ((= x y)))))
(declare-fun b () U)
(declare-fun c () U)
(assert (not (= b c)))
(check-sat)