Stop-transitions of Petri Nets1

J. Desel, Marc Finthammer
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Abstract

A transition t stops a place/transition Petri net if each reachable marking of the net enables only finite occurrence sequences without occurrences of t (i.e., every infinite occurrence sequence enabled at this marking contains occurrences of t). Roughly speaking, when t is stopped then all transitions of the net stop eventually. This contribution shows how to identify stop-transitions of unbounded nets using the coverability graph. Furthermore, the developed technique is adapted to a more general question considering a set of stop-transitions and focussing on a certain part of the net to be stopped. Finally, an implementation of the developed algorithm is presented.
Petri网的停止转换1
如果网的每个可达标记只允许有限的发生序列而不允许t的出现(即在该标记处启用的每个无限的发生序列都包含t的出现),则过渡t停止了位置/过渡Petri网。粗略地说,当t停止时,网的所有过渡最终停止。这个贡献展示了如何使用可覆盖性图来识别无界网络的停止转换。此外,所开发的技术适用于考虑一组停止转换并聚焦于要停止的网络的某个部分的更一般的问题。最后,给出了该算法的具体实现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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