On Petri nets with hierarchical special arcs.

*(English)*Zbl 1442.68122
Meyer, Roland (ed.) et al., 28th international conference on concurrency theory. CONCUR 2017, Berlin, Germany, September 5–8, 2017. Proceedings. Wadern: Schloss Dagstuhl – Leibniz Zentrum für Informatik. LIPIcs – Leibniz Int. Proc. Inform. 85, Article 40, 17 p. (2017).

Summary: We investigate the decidability of termination, reachability, coverability and deadlock-freeness of Petri nets endowed with a hierarchy of places, and with inhibitor arcs, reset arcs and transfer arcs that respect this hierarchy. We also investigate what happens when we have a mix of these special arcs, some of which respect the hierarchy, while others do not. We settle the decidability status of the above four problems for all combinations of hierarchy, inhibitor, reset and transfer arcs, except the termination problem for two combinations. For both these combinations, we show that deciding termination is as hard as deciding the positivity problem on linear recurrence sequences – a long-standing open problem.

For the entire collection see [Zbl 1372.68016].

For the entire collection see [Zbl 1372.68016].

##### MSC:

68Q85 | Models and methods for concurrent and distributed computing (process algebras, bisimulation, transition nets, etc.) |

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\textit{S. Akshay} et al., LIPIcs -- Leibniz Int. Proc. Inform. 85, Article 40, 17 p. (2017; Zbl 1442.68122)

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