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;; Same than length.smt2 but the nil case is not a rewrite rule
;; So here the rewrite rules have no guards length
(set-logic AUFLIA)
(set-info :status unsat)
;; don't use a datatypes for currently focusing in uf
(declare-sort list 0)
(declare-fun cons (Int list) list)
(declare-fun nil () list)
;;define length
(declare-fun length (list) Int)
(assert (= (length nil) 0))
(assert (forall ((?e Int) (?l list)) (! (= (length (cons ?e ?l)) (+ 1 (length ?l))) :rewrite-rule)))
(declare-fun ten_one_cons (list) list)
(assert (forall ((?l list)) (! (= (ten_one_cons ?l)
(cons 1 (cons 1 (cons 1 (cons 1 (cons 1 (cons 1 (cons 1 (cons 1 (cons 1 (cons 1 ?l) )))))))))
) :rewrite-rule)))
(assert (not (= (length (ten_one_cons nil))
10)))
(check-sat)
(declare-fun ten_one_ten (list) list)
(assert (forall ((?l list)) (! (= (ten_one_ten ?l)
(ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons (ten_one_cons ?l) )))))))))
) :rewrite-rule)))
(declare-fun two_one_ten (list) list)
(assert (forall ((?l list)) (! (= (two_one_ten ?l)
(ten_one_cons (ten_one_cons ?l))
) :rewrite-rule)))
(exit)
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