License: Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.CONCUR.2019.12
URN: urn:nbn:de:0030-drops-109147
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Finkel, Alain ; Praveen, M.

Verification of Flat FIFO Systems

LIPIcs-CONCUR-2019-12.pdf (0.6 MB)


The decidability and complexity of reachability problems and model-checking for flat counter systems have been explored in detail. However, only few results are known for flat FIFO systems, only in some particular cases (a single loop or a single bounded expression). We prove, by establishing reductions between properties, and by reducing SAT to a subset of these properties that many verification problems like reachability, non-termination, unboundedness are NP-complete for flat FIFO systems, generalizing similar existing results for flat counter systems. We construct a trace-flattable counter system that is bisimilar to a given flat FIFO system, which allows to model-check the original flat FIFO system. Our results lay the theoretical foundations and open the way to build a verification tool for (general) FIFO systems based on analysis of flat subsystems.

BibTeX - Entry

  author =	{Alain Finkel and M. Praveen},
  title =	{{Verification of Flat FIFO Systems}},
  booktitle =	{30th International Conference on Concurrency Theory (CONCUR 2019)},
  pages =	{12:1--12:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-121-4},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{140},
  editor =	{Wan Fokkink and Rob van Glabbeek},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{},
  URN =		{urn:nbn:de:0030-drops-109147},
  doi =		{10.4230/LIPIcs.CONCUR.2019.12},
  annote =	{Keywords: Infinite state systems, FIFO, counters, flat systems, reachability, termination, complexity}

Keywords: Infinite state systems, FIFO, counters, flat systems, reachability, termination, complexity
Collection: 30th International Conference on Concurrency Theory (CONCUR 2019)
Issue Date: 2019
Date of publication: 20.08.2019

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