Fast inference of polynomial invariants for imperative programs - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Rapport (Rapport De Recherche) Année : 2011

Fast inference of polynomial invariants for imperative programs

Résumé

We propose an abstract interpretation based method to compute polynomial invariants for imperative programs. Our analysis is a backward propagation approach that computes preconditions for equalities like g=0 to hold at the end of execution. It extends previous work by Müller-Olm and Seidl to a language that includes both polynomial equalities and disequalities. Properties are expressed using ideals, a structure that satisfies the descending chain condition, enabling fixpoints computations to terminate without use of a widening operator. In the general case, termination is characterized using ideal membership tests and Gröbner bases computations. In order to optimize computational complexity, we propose a specialized analysis dealing with inductive invariants which ensures fast termination of fixpoints computations. The optimized procedure has been shown by experiments to work well in practice, and to be two orders of magnitude faster than the state of the art analyzer of Carbonell and Kapur.
Fichier principal
Vignette du fichier
RR-7627.pdf (392.37 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

inria-00595783 , version 1 (25-05-2011)

Identifiants

  • HAL Id : inria-00595783 , version 1

Citer

David Cachera, Thomas Jensen, Arnaud Jobin, Florent Kirchner. Fast inference of polynomial invariants for imperative programs. [Research Report] RR-7627, INRIA. 2011, pp.31. ⟨inria-00595783⟩
319 Consultations
182 Téléchargements

Partager

Gmail Facebook X LinkedIn More