Read, Write and Copy Dependencies for Symbolic Model Checking

Jeroen Meijer, Gijs Kant, Stefan Blom, Jan Cornelis van de Pol

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    16 Citations (Scopus)
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    This paper aims at improving symbolic model checking for explicit state modeling languages, e.g., Promela, Dve and mCRL2. The modular Pins architecture of LTSmin supports a notion of event locality, by merely indicating for each event on which variables it depends. However, one could distinguish four separate dependencies: read, may-write, must-write and copy. In this paper, we introduce these notions in a language-independent manner. In particular, models with arrays need to distinguish overwriting and copying of values. We also adapt the symbolic model checking algorithms to exploit the refined dependency information. We have implemented refined dependency matrices for Promela, Dve and mCRL2, in order to compare our new algorithms to the original version of LTSmin. The results show that the amount of successor computations and memory footprint are greatly reduced. Finally, the optimal variable ordering is also affected by the refined dependencies: We determined experimentally that variables with a read dependency should occur at a higher BDD level than variables with a write dependency.
    Original languageUndefined
    Title of host publicationProceedings of the 10th International Haifa Verification Conference, HVC 2014
    Place of PublicationBerlin
    Number of pages16
    ISBN (Print)978-3-319-13337-9
    Publication statusPublished - Nov 2014
    Event10th International Haifa Verification Conference, HVC 2014 - Haifa, Israel
    Duration: 18 Nov 201420 Nov 2014

    Publication series

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


    Conference10th International Haifa Verification Conference, HVC 2014
    Other18-20 November 2014


    • EWI-25296
    • METIS-309656
    • IR-93290

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