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; EXPECT: unsat
(set-logic QF_UF)
(set-info :smt-lib-version 2.6)
(set-info :category "crafted")
(set-info :status unsat)
(declare-fun x0 () Bool)
(declare-fun y0 () Bool)
(declare-fun z0 () Bool)
(assert (or x0 y0))
(assert (or (not y0) z0))
(declare-fun x1 () Bool)
(declare-fun y1 () Bool)
(assert x1)
(assert y1)
(declare-fun f (Bool) Bool)
(assert (not (= (f (or x0 z0)) (f (and x1 y1)))))
(check-sat)
(exit)
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