Trustworthy Systems

Structure preserving bisimilarity, supporting an operational petri net semantics of CCSP


Rob van Glabbeek




In 1987 Ernst-Rüdiger Olderog provided an operational Petri net semantics for a subset of CCSP, the union of Milner's CCS and Hoare's CSP. It assigns to each process term in the subset a labelled, safe place/transition net. To demonstrate the correctness of the approach, Olderog established agreement (1) with the standard interleaving semantics of CCSP up to strong bisimulation equivalence, and (2) with standard denotational interpretations of CCSP operators in terms of Petri nets up to a suitable semantic equivalence that fully respects the causal structure of nets. For the latter he employed a linear-time semantic equivalence, namely having the same causal nets.

This paper strengthens (2), employing a novel branching-time version of this semantics ---structure preserving bisimilarity---that moreover preserves inevitability. I establish that it is a congruence for the operators of CCSP.

BibTeX Entry

    address          = {Oldenburg, Germany},
    author           = {van Glabbeek, Robert},
    booktitle        = {Correct System Design --- Symposium in Honor of Ernst-R\"udiger Olderog on the Occasion of His 60th
    doi              = {10.1007/978-3-319-23506-6_9},
    editor           = {{R. Meyer, A. Platzer \& H. Wehrheim}},
    keywords         = {petri nets, concurrency, process algebra, operational semantics, semantic equivalences,
    month            = sep,
    pages            = {99--130},
    paperurl         = {},
    publisher        = {Springer},
    series           = {Lecture Notes in Computer Science},
    title            = {Structure Preserving Bisimilarity, Supporting an Operational Petri Net Semantics of {CCSP}},
    year             = {2015}