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; EXPECT: sat (set-logic ALL_SUPPORTED) (set-info :status sat) (define-sort SetInt () (Set Int)) (declare-fun A () (Set Int)) (declare-fun B () (Set Int)) (declare-fun x () Int) (declare-fun y () Int) (assert (member x (union A B))) (assert (not (member y A))) (assert (not (member y B))) (check-sat)