Token Multiplicity in Reversing Petri Nets Under the Individual Token Interpretation

Anna Philippou
(University of Cyprus)
Kyriaki Psara
(University of Cyprus)

Reversing Petri nets (RPNs) have recently been proposed as a net-basedapproach to model causal and out-of-causal order reversibility. They are based on the notion of individual tokens that can be connected together via bonds. In this paper we extend RPNs by allowing multiple tokens of the same type to exist within a net based on the individual token interpretation of Petri nets. According to this interpretation, tokens of the same type are distinguished via their causal path. We develop a causal semantics of the model and we prove that the expressive power of RPNs with multiple tokens is equivalent to that of RPNs with single tokens by establishing an isomporphism between the Labelled Transition Systems (LTSs) capturing the reachable parts of the respective RPN models.

In Valentina Castiglioni and Claudio A. Mezzina: Proceedings Combined 29th International Workshop on Expressiveness in Concurrency and 19th Workshop on Structural Operational Semantics (EXPRESS/SOS 2022), Warsaw, Poland, 12th September 2022, Electronic Proceedings in Theoretical Computer Science 368, pp. 131–150.
Published: 6th September 2022.

ArXived at: bibtex PDF
References in reconstructed bibtex, XML and HTML format (approximated).
Comments and questions to:
For website issues: