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1 IRIT - Institut de recherche en informatique de Toulouse

Abstract : Concurrent systems consist of many components which may execute in parallel and are complex to design, to analyze, to verify, and to implement.
The complexity increases if the systems have real-time constraints, which are very useful in avionic, spatial and other kind of embedded applications.
In this paper we present a logical framework for defining and validating real-time formalisms as well as reasoning methods over them.
For this purpose, we have implemented in the Coq proof assistant well known semantic domains for real-time systems based on labelled transitions systems and timed runs.
We experiment our framework by considering the real-time CSP-based language fiacre, which has been defined as a pivot formalism for modeling languages aadl, sdl,

.
used in the TOPCASED project.
Thus, we define an extension to the formal semantic models mentioned above that facilitates the modeling of fine-grained time constraints of fiacre.
Finally, we implement this extension in our framework and provide a proof method environment to deal with real-time system in order to achieve their formal certification.


Keywords : Logics and meanings of programs





Autor: Manuel Garnacho - Jean-Paul Bodeveix - Mamoun Filali -

Fuente: https://hal.archives-ouvertes.fr/



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