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     <dc:title xml:lang="en">Formal verification of a synchronous data-flow compiler : from Signal to C</dc:title>
     <dcterms:alternative xml:lang="fr">Vérification formelle d’un compilateur synchrone: de Signal vers C</dcterms:alternative>
     <dc:subject xml:lang="fr">Vérification formelle</dc:subject><dc:subject xml:lang="fr">Validation de la traduction</dc:subject><dc:subject xml:lang="fr">Compilateur validé</dc:subject><dc:subject xml:lang="fr">Programmes synchrones</dc:subject><dc:subject xml:lang="fr">Modèles polychrones</dc:subject><dc:subject xml:lang="fr">Systèmes embarqués</dc:subject><dc:subject xml:lang="fr">Systèmes critiques</dc:subject><dc:subject xml:lang="fr">Détection des blocages</dc:subject><dc:subject xml:lang="fr">Compilation</dc:subject><dc:subject xml:lang="fr">Polychrony</dc:subject><dc:subject xml:lang="fr">Graphiques de dépendance</dc:subject><dc:subject xml:lang="fr">SMT solving</dc:subject><dc:subject xml:lang="fr">Valeur-graphiques</dc:subject><dc:subject xml:lang="fr">Graphique réécriture.</dc:subject>
     <dc:subject xml:lang="en">Formal verification</dc:subject><dc:subject xml:lang="en">Translation validation</dc:subject><dc:subject xml:lang="en">Validated Compiler</dc:subject><dc:subject xml:lang="en">Synchronous Programs</dc:subject><dc:subject xml:lang="en">Polychronous Models</dc:subject><dc:subject xml:lang="en">Embedded systems</dc:subject><dc:subject xml:lang="en">Safety-critical systems</dc:subject><dc:subject xml:lang="en">Deadlock detection</dc:subject><dc:subject xml:lang="en">Compilation</dc:subject><dc:subject xml:lang="en">Polychrony</dc:subject><dc:subject xml:lang="en">Dependency graphs</dc:subject><dc:subject xml:lang="en">SMT solving</dc:subject><dc:subject xml:lang="en">Value-graphs</dc:subject><dc:subject xml:lang="en">Graph rewriting.</dc:subject>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="050702858">Méthodes formelles (informatique)</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">Les langages synchrones tels que Signal, Lustre et Esterel sont dédiés à la conception de systèmes critiques. Leurs compilateurs, qui sont de très gros programmes complexes, peuvent a priori se révéler incorrects dans certains situations, ce qui donnerait lieu alors à des résultats de compilation erronés non détectés. Ces codes fautifs peuvent invalider des propriétés de sûreté qui ont été prouvées en appliquant des méthodes formelles sur les programmes sources. En adoptant une approche de validation de la traduction, cette thèse vise à prouver formellement la correction d'un compilateur optimisé et industriel de Signal. La preuve de correction représente  dans un cadre sémantique commun le programme source et le code compilé, et formalise une relation entre eux pour exprimer la préservation des sémantiques du programme source dans le code compilé.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">Synchronous languages such as Signal, Lustre and Esterel are dedicated to designing safety-critical systems. Their compilers are large and complicated programs that may be incorrect in some contexts, which might produce silently bad compiled code when compiling source programs. The bad compiled code can invalidate the safety properties that are guaranteed on the source programs by applying formal methods. Adopting the translation validation approach, this thesis aims at formally proving the correctness of the highly optimizing and industrial Signal compiler. The correctness proof represents both source program and compiled code in a common semantic framework, then formalizes a relation between the source program and its compiled code to express that the semantics of the source program are preserved in the compiled code.</dcterms:abstract>
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       <tef:prenom>Van Chan</tef:prenom>
       
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