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TRAU : SMT solver for string constraints
Uppsala Univ, Sweden.
Uppsala Univ, Sweden.
Acad Sinica, Taiwan.
Uppsala Univ, Sweden.
Show others and affiliations
2018 (English)In: PROCEEDINGS OF THE 2018 18TH CONFERENCE ON FORMAL METHODS IN COMPUTER AIDED DESIGN (FMCAD), IEEE , 2018, p. 165-169Conference paper, Published paper (Refereed)
Abstract [en]

We introduce TRAU, an SMT solver for an expressive constraint language, including word equations, length constraints, context-free membership queries, and transducer constraints. The satisfiability problem for such a class of constraints is in general undecidable. The key idea behind TRAU is a technique called flattening, which searches for satisfying assignments that follow simple patterns. TRAU implements a Counter-Example Guided Abstraction Refinement (CEGAR) framework which contains both an under- and an over-approximation module. The approximations are refined in an automatic manner by information flow between the two modules. The technique implemented by TRAU can handle a rich class of string constraints and has better performance than state-of-the-art string solvers.

Place, publisher, year, edition, pages
IEEE , 2018. p. 165-169
National Category
Computational Mathematics
Identifiers
URN: urn:nbn:se:liu:diva-162360DOI: 10.23919/FMCAD.2018.8602997ISI: 000493916300025ISBN: 978-0-9835-6788-2 (electronic)OAI: oai:DiVA.org:liu-162360DiVA, id: diva2:1373539
Conference
18th Conference on Formal Methods in Computer-Aided Design (FMCAD)
Note

Funding Agencies|Swedish Research Council (VR)Swedish Research Council [2014-5484]; Swedish Foundation for Strategic Research (SSF)Swedish Foundation for Strategic Research [RIT17-0011]; Czech Science FoundationGrant Agency of the Czech Republic [16-24707Y]; IT4IXS: IT4Innovations Excellence in Science project [LQ1602]; FIT BUT [FIT-S-17-4014]; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan [106-2221-E-001-009-MY3]

Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-11-27

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf