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Analyse symbolique de systèmes infinis basée sur les automates: Application à la vérification de systèmes paramétrés et dynamiques

Abstract : We consider in this thesis the model-checking problem of infinite state systems,
namely parametrized systems and recursive multithreaded programs. We present a
uniform framework for the algorithmic verification of these systems. This framework
is based on the representation of sets of configurations using word/tree automata,
and the representation of the transition relations of the systems using word/tree
rewriting rules. The verification problem is then reduced to the computation of the
reachability sets in this framework. The contributions of this thesis are the following:

1- Definition of a general acceleration technique. We propose a method based on
extrapolation techniques on automata, and we study the power of this approach.
2- Regular model-checking techniques for the verification of parametrized
networks with linear and tree-like topologies. In particular, we consider the
networks modeled by rewriting systems containing semi-commutations, i.e.. rules of
the form ab -> ba, and we isolate a class of languages which is effectively closed
under these systems.
3- Modeling and verification of recursive multithreaded programs. We study first the
models PRS which are more general than pushdown systems, Petri nets, and PA systems;
and we propose algorithms that compute the reachability sets of (subclasses of) PRS when
considering different semantics.

In another approach, we consider models based on communicating pushdown systems and CCS-like
rewriting systems; and we propose verification methods of these models based on the computation
of abstractions of execution path languages. We propsoe a generic algebraic framework that
allows the computation of these abstractions.
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Contributor : Tayssir Touili <>
Submitted on : Monday, July 9, 2007 - 6:47:32 PM
Last modification on : Saturday, March 28, 2020 - 2:07:58 AM
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  • HAL Id : tel-00161124, version 1



Tayssir Touili. Analyse symbolique de systèmes infinis basée sur les automates: Application à la vérification de systèmes paramétrés et dynamiques. Autre [cs.OH]. Université Paris-Diderot - Paris VII, 2003. Français. ⟨tel-00161124⟩



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