test/regress/regress0/arith/integers/ackermann6.smt2


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; COMMAND-LINE: --ackermann
; EXPECT: unsat
(set-logic QF_UFLIA)
(set-info :smt-lib-version 2.6)
(set-info :category "crafted")
(declare-fun v0 () Int)
(declare-fun f (Int) Int)
(declare-fun g (Int) Int)

(assert (= (f v0) (g (f v0))))
(assert (= (f (f v0)) (g (f v0))))
(assert (not (= (f (f (f v0))) (g (f v0)))))

(check-sat)
(exit)