Authors:
Mohamed Ramdani
1
;
Laid Kahloul
2
and
Mohamed Khalgui
3
Affiliations:
1
University of Tunis El Manar, Tunis, Tunisia, University of Carthage, National Institute of Applied Sciences and Technology, Tunis 1080 and Tunisia
;
2
LINFI Laboratory, Computer Science Department, Biskra University and Algeria
;
3
University of Carthage, National Institute of Applied Sciences and Technology, Tunis 1080 and Tunisia
Keyword(s):
Discrete-event System, Reconfiguration, R-TNCES, Computation Tree Logic, CTL, Automatic Generation, Formal Verification, Model-checking.
Related
Ontology
Subjects/Areas/Topics:
Formal Methods
;
Simulation and Modeling
;
Software Engineering
;
Software Engineering Methods and Techniques
Abstract:
This paper deals with reconfigurable discrete event/control systems (RDECSs) that dynamically change their structures due to external changes in environment or user requirements. Reconfigurable Timed Net Condition/Event Systems (R-TNCESs) are proposed as an extension of the Petri nets formalism for the optimal functional and temporal specification of RDECSs. The correct design of these systems continues to challenge experts in both academia and industry, since bugs not covered early can be extremely expensive at the final deployment. The classic model-checking using computation tree logic (CTL) and its extensions (extended CTL, Timed CTL, etc) produces a large number of properties, possibly redundant, to be verified in a complex R-TNCES. To control the complexity and to reduce the verification time, a reduction technique of properties is proposed. The novelty consists in the classification of CTL properties according to their semantic relationships for guiding an efficient verificati
on. An algorithm is proposed for the automatic classification of CTL properties before starting model-checking process. A case study is exploited to illustrate the impact of using this technique. The current results show the benefits of the paper’s contribution.
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