Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)

This work is a part of an ongoing effort to prove the correctness of invertibility conditions for the theory of fixed-width bit-vectors, which are used to solve quantified bit-vector formulas in the Satisfiability Modulo Theories (SMT) solver CVC4. While many of these were proved in a completely aut...

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Main Authors: Burak Ekici, Arjun Viswanathan, Yoni Zohar, Clark Barrett, Cesare Tinelli
Format: Article
Language:English
Published: Open Publishing Association 2019-08-01
Series:Electronic Proceedings in Theoretical Computer Science
Online Access:http://arxiv.org/pdf/1908.09478v1
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author Burak Ekici
Arjun Viswanathan
Yoni Zohar
Clark Barrett
Cesare Tinelli
author_facet Burak Ekici
Arjun Viswanathan
Yoni Zohar
Clark Barrett
Cesare Tinelli
author_sort Burak Ekici
collection DOAJ
description This work is a part of an ongoing effort to prove the correctness of invertibility conditions for the theory of fixed-width bit-vectors, which are used to solve quantified bit-vector formulas in the Satisfiability Modulo Theories (SMT) solver CVC4. While many of these were proved in a completely automatic fashion for any bit-width, some were only proved for bit-widths up to 65, even though they are being used to solve formulas over arbitrary bit-widths. In this paper we describe our initial efforts in proving a subset of these invertibility conditions in the Coq proof assistant. We describe the Coq library that we use, as well as the extensions that we introduced to it.
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spelling doaj.art-05aa5ad7ef454eb39cdbfc45c402d87f2022-12-22T02:05:45ZengOpen Publishing AssociationElectronic Proceedings in Theoretical Computer Science2075-21802019-08-01301Proc. PxTP 2019182610.4204/EPTCS.301.4:5Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)Burak Ekici0Arjun Viswanathan1Yoni Zohar2Clark Barrett3Cesare Tinelli4 University of Innsbruck University of Iowa Stanford University Stanford University University of Iowa This work is a part of an ongoing effort to prove the correctness of invertibility conditions for the theory of fixed-width bit-vectors, which are used to solve quantified bit-vector formulas in the Satisfiability Modulo Theories (SMT) solver CVC4. While many of these were proved in a completely automatic fashion for any bit-width, some were only proved for bit-widths up to 65, even though they are being used to solve formulas over arbitrary bit-widths. In this paper we describe our initial efforts in proving a subset of these invertibility conditions in the Coq proof assistant. We describe the Coq library that we use, as well as the extensions that we introduced to it.http://arxiv.org/pdf/1908.09478v1
spellingShingle Burak Ekici
Arjun Viswanathan
Yoni Zohar
Clark Barrett
Cesare Tinelli
Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
Electronic Proceedings in Theoretical Computer Science
title Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
title_full Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
title_fullStr Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
title_full_unstemmed Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
title_short Verifying Bit-vector Invertibility Conditions in Coq (Extended Abstract)
title_sort verifying bit vector invertibility conditions in coq extended abstract
url http://arxiv.org/pdf/1908.09478v1
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AT cesaretinelli verifyingbitvectorinvertibilityconditionsincoqextendedabstract