sidekick/tests/unsat/v1l50092.cvc.smt2
2019-11-23 13:23:30 -06:00

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(set-info :smt-lib-version 2.6)
(set-logic QF_DT)
(set-info :source |
Generated by: Andrew Reynolds
Generated on: 2017-04-28
Generator: Random, converted to v2.6 by CVC4
Application: Regressions for datatypes decision procedure.
Target solver: CVC3
Publications: "An Abstract Decision Procedure for Satisfiability in the Theory of Inductive Data Types" by Clark Barrett, Igor Shikanian, and Cesare Tinelli, Journal on Satisfiability, Boolean Modeling and Computation 2007.
|)
(set-info :license "https://creativecommons.org/licenses/by/4.0/")
(set-info :category "random")
(set-info :status unsat)
(declare-datatypes ((nat 0)(list 0)(tree 0)) (((succ (pred nat)) (zero))
((cons (car tree) (cdr list)) (null))
((node (children list)) (leaf (data nat)))
))
(declare-fun x1 () nat)
(declare-fun x2 () list)
(declare-fun x3 () tree)
(assert (and (and (and (and (= (node (cons x3 (cdr null))) x3) (= (cdr (cdr (cons (car x2) (cdr null)))) (children (leaf (pred (succ zero)))))) (not (= x2 (cons (leaf x1) x2)))) (= (car x2) x3)) (not ((_ is succ) zero))))
(check-sat)
(exit)