Automated verification of parallel nested DFS

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

  • Wytse Oortwijn, Eidgenossische Technische Hochschule Zurich
  • ,
  • Marieke Huisman, University of Twente
  • ,
  • Sebastiaan J.C. Joosten, Dartmouth College
  • ,
  • Jaco van de Pol

Model checking algorithms are typically complex graph algorithms, whose correctness is crucial for the usability of a model checker. However, establishing the correctness of such algorithms can be challenging and is often done manually. Mechanising the verification process is crucially important, because model checking algorithms are often parallelised for efficiency reasons, which makes them even more error-prone. This paper shows how the VerCors concurrency verifier is used to mechanically verify the parallel nested depth-first search (NDFS) graph algorithm of Laarman et al. [25]. We also demonstrate how having a mechanised proof supports the easy verification of various optimisations of parallel NDFS. As far as we are aware, this is the first automated deductive verification of a multi-core model checking algorithm.

Original languageEnglish
Title of host publicationTools and Algorithms for the Construction and Analysis of Systems- 26th International Conference, TACAS 2020, held as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2020, Proceedings, Part I
EditorsArmin Biere, David Parker
Number of pages19
PublisherSpringer
Publication year2020
Pages247-265
ISBN (print)9783030451899
DOIs
Publication statusPublished - 2020
Event26th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, TACAS 2020, held as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2020 - Dublin, Ireland
Duration: 25 Apr 202030 Apr 2020

Conference

Conference26th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, TACAS 2020, held as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2020
LandIreland
ByDublin
Periode25/04/202030/04/2020
SeriesLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12078 LNCS
ISSN0302-9743

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