Schedulers are no Prophets

Arnd Hartmanns, H. Hermanns, Jan Krčál

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

    3 Citations (Scopus)
    121 Downloads (Pure)

    Abstract

    Several formalisms for concurrent computation have been proposed in recent years that incorporate means to express stochastic continuous-time dynamics and non-determinism. In this setting, some obscure phenomena are known to exist, related to the fact that schedulers may yield too pessimistic verification results, since current non-determinism can surprisingly be resolved based on prophesying the timing of future random events. This paper provides a thorough investigation of the problem, and it presents a solution: Based on a novel semantics of stochastic automata, we identify the class of schedulers strictly unable to prophesy, and show a path towards verification algorithms with respect to that class. The latter uses an encoding into the model of stochastic timed automata under arbitrary schedulers, for which model checking tool support has recently become available.
    Original languageEnglish
    Title of host publicationSemantics, Logics, and Calculi: Essays Dedicated to Hanne Riis Nielson and Flemming Nielson on the Occasion of Their 60th Birthdays
    Place of PublicationCham
    PublisherSpringer
    Pages214-235
    Number of pages22
    ISBN (Print)978-3-319-27809-4
    DOIs
    Publication statusPublished - Jan 2016
    EventSemantics, Logics, and Calculi: Essays Dedicated to Hanne Riis Nielson and Flemming Nielson on the Occasion of Their 60th Birthdays - Kongens Lyngby, Denmark
    Duration: 8 Jan 20168 Jan 2016

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag
    Volume9560
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Other

    OtherSemantics, Logics, and Calculi: Essays Dedicated to Hanne Riis Nielson and Flemming Nielson on the Occasion of Their 60th Birthdays
    Period8/01/168/01/16
    Other8 Jan 2016

    Keywords

    • EWI-27014
    • EC Grant Agreement nr.: FP7/295261
    • IR-100653
    • METIS-317202
    • EC Grant Agreement nr.: FP7/318490

    Fingerprint Dive into the research topics of 'Schedulers are no Prophets'. Together they form a unique fingerprint.

    Cite this