Publication Details

2LS: Arrays and Loop Unwinding (Competition Contribution)

MALÍK Viktor, NEČAS František, SCHRAMMEL Peter and VOJNAR Tomáš. 2LS: Arrays and Loop Unwinding (Competition Contribution). In: Proceedings of the 29th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, part 2. Lecture Notes in Computer Science, vol. 13994. Paris: Springer International Publishing, 2023, pp. 529-534. ISBN 978-3-031-30819-2. Available from: https://link.springer.com/content/pdf/10.1007/978-3-031-30820-8_31.pdf?pdf=inline%20link
Czech title
2LS: Analýza polí a rozbalování smyček (příspěvek do soutěže)
Type
conference paper
Language
english
Authors
Malík Viktor, Ing. (DITS FIT BUT)
Nečas František, Bc. (FIT BUT)
Schrammel Peter, Dr. (US)
Vojnar Tomáš, prof. Ing., Ph.D. (DITS FIT BUT)
URL
Keywords

program analysis, formal verification, invariant inference, loop invariants, abstract interpretation, k-induction, loop unwinding, array abstract domain, array contents analysis

Abstract

2LS is a C program analyser built upon the CPROVER infrastructure that can verify and refute program assertions, memory safety, and termination. Until now, one of the main drawbacks of 2LS was its inability to verify most programs with arrays. This paper introduces a new abstract domain in 2LS for reasoning about the contents of arrays. In addition, we introduce an improved approach to loop unwinding, a crucial component of the 2LS' verification algorithm, which particularly enables finding proofs and counterexamples for programs working with dynamic memory.

Published
2023
Pages
529-534
Proceedings
Proceedings of the 29th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, part 2
Series
Lecture Notes in Computer Science
Volume
13994
Conference
European Joint Conferences on Theory and Practice of Software -- ETAPS'23, Paris, FR
ISBN
978-3-031-30819-2
Publisher
Springer International Publishing
Place
Paris, FR
DOI
10.1007/978-3-031-30820-8_31
EID Scopus
2-s2.0-85161470501
BibTeX 
@INPROCEEDINGS{FITPUB13064,
   author = "Viktor Mal\'{i}k and Franti\v{s}ek Ne\v{c}as and Peter Schrammel and Tom\'{a}\v{s} Vojnar",
   title = "2LS: Arrays and Loop Unwinding (Competition Contribution)",
   pages = "529--534",
   booktitle = "Proceedings of the 29th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, part 2",
   series = "Lecture Notes in Computer Science",
   volume = 13994,
   year = 2023,
   location = "Paris, FR",
   publisher = "Springer International Publishing",
   ISBN = "978-3-031-30819-2",
   doi = "10.1007/978-3-031-30820-8\_31",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/13064"
}
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