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Expand, Enlarge and Check... Made Efficient

par Geeraerts, Gilles ;Raskin, Jean-François ;Van Begin, Laurent
Référence Lecture notes in computer science, 3576, page (394-407)
Publication Publié, 2005-07-01

Article révisé par les pairs

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Résumé :

The coverability problem is decidable for the class of well-structured transition systems. Until recently, the only known algorithm to solve this problem was based on symbolic backward reachability. In a recent paper, we have introduced the theory underlying a new algorithmic solution, called `Expand, Enlarge and Check', which can be implemented in a forward manner. In this paper, we provide additional concepts and algorithms to turn this theory into efficient forward algorithms for monotonic extensions of Petri nets and Lossy Channels Systems. We have implemented a prototype and applied it on a large set of examples. This prototype outperforms a previous fine tuned prototype based on backward symbolic exploration and shows the practical interest of our new algorithmic solution.