Editor and simulator of timed-arc Petri nets
TAPAAL is a tool for verification of Timed-Arc Petri Nets developed at Department of Computer Science at Aalborg University. It is based on the Petri Net drawing tool PIPE2.
Timed-Arc Petri Net (TAPN) is a time extension of the classical Petri net model (a commonly used graphical model of distributed computations introduced by Carl Adam Petri in his disseration in 1962). The time extension we consider allows for explicit treatment of real-time, which is associated with the tokens in the net (each tokens has its own age) and arcs from places to transitions are labelled by time intervals that restrict the age of tokens that can be used in order to fire the respective transition. In TAPAAL tool a furter extension of this model with invariants on places and with transport arcs (which are more expressive than for example previously considered read-arcs) is implemented.
The TAPAAL tools offers a graphical editor for drawing TAPN models, simulator for experimenting with the designed nets and a verification environment that allows to answer logical queries in a subset of CTL logic (essentially EF, EG, AF, AG formulae without nesting). It also allows to automatically check whether a given net is k-bounded for a given number k. The verification algorithm translates the TAPAAL queries into UPPAAL and relies on the UPPAAL engine.
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What's New in This Release:
- This release fixes an issue for trace generation in the discrete TAPAAL engine for EG/AF queries and the Time Dart option.