Chapter

Formal Methods and Software Engineering

Volume 5885 of the series Lecture Notes in Computer Science pp 698-716

An Efficient Translation of Timed-Arc Petri Nets to Networks of Timed Automata

  • Joakim BygAffiliated withDepartment of Computer Science, Aalborg University
  • , Kenneth Yrke JørgensenAffiliated withDepartment of Computer Science, Aalborg University
  • , Jiří SrbaAffiliated withDepartment of Computer Science, Aalborg University

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Abstract

Bounded timed-arc Petri nets with read-arcs were recently proven equivalent to networks of timed automata, though the Petri net model cannot express urgent behaviour and the described mutual translations are rather inefficient. We propose an extension of timed-arc Petri nets with invariants to enforce urgency and with transport arcs to generalise the read-arcs. We also describe a novel translation from the extended timed-arc Petri net model to networks of timed automata. The translation is implemented in the tool TAPAAL and it uses UPPAAL as the verification engine. Our experiments confirm the efficiency of the translation and in some cases the translated models verify significantly faster than the native UPPAAL models do.