Improved On-The-Fly Livelock Detection: Combining Partial Order Reduction and Parallelism for DFSFIFO

Alfons Laarman, David Faragó

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    7 Citations (Scopus)
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    Until recently, the preferred method of livelock detection was via LTL model checking, which imposes complex constraints on partial order reduction (POR), limiting its performance and parallelization. The introduction of the DFS_FIFO algorithm by Faragó et al. showed that livelocks can theoretically be detected faster, simpler, and with stronger POR. For the first time, we implement DFS_FIFO and compare it to the LTL approach by experiments on four established case studies. They show the improvements over the LTL approach: DFS_FIFO is up to 3.2 times faster, and it makes POR up to 5 times better than with SPIN's NDFS. Additionally, we propose a parallel version of DFS_FIFO, which demonstrates the efficient combination of parallelization and POR. We prove parallel DFS_FIFO correct and show why it provides stronger guarantees on parallel scalability and POR compared to LTL-based methods. Experimentally, we establish almost ideal linear parallel scalability and POR close to the POR for safety checks: easily an order of magnitude better than for LTL.
    Original languageEnglish
    Title of host publicationNASA Formal Methods
    Subtitle of host publication5th International Symposium, NFM 2013, Moffett Field, CA, USA, May 14-16, 2013. Proceedings
    EditorsGuillaume Brat, Neha Rungta, Arnaud Venet
    Number of pages15
    ISBN (Electronic)978-3-642-38088-4
    ISBN (Print)978-3-642-38087-7
    Publication statusPublished - 2013
    Event5th International Symposium on NASA Formal Methods, NFM 2013 - Moffett Field, United States
    Duration: 14 May 201316 May 2013
    Conference number: 5

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349


    Conference5th International Symposium on NASA Formal Methods, NFM 2013
    Abbreviated titleNFM
    Country/TerritoryUnited States
    CityMoffett Field


    • EWI-23159
    • METIS-296352
    • tree compression
    • Partial order reduction
    • nested depth-first search
    • Parallel
    • LTL model checking
    • LTSMIN
    • Stubborn set
    • livelocks
    • liveness
    • DiVinE
    • Multi-Core
    • Promela
    • SPIN
    • IR-84628
    • DVE
    • DFS_FIFO
    • Model Checking
    • collapse compression


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