seminaire May 2018

seminaire@lrde.epita.fr

1 participants
1 discussions

Séminaire du LRDE le mercredi 30 mai 2018: Jan Strejcek, Masaryk University

by Guillaume Tochon

Chers collègues, La prochaine session du séminaire Performance et Généricité du LRDE (Laboratoire de Recherche et Développement de l'EPITA) aura lieu le Mercredi 30 mai 2018 (11h--12h), Amphi IP11. Vous trouverez sur le site du séminaire [1] les prochaines séances, les résumés, captations vidéos et planches des exposés précédents [2], le détail de cette séance [3] ainsi que le plan d'accès [4]. [1] http://seminaire.lrde.epita.fr [2] http://seminaire.lrde.epita.fr/Archives [3] http://seminaire.lrde.epita.fr/2018-05-30 [4] http://www.lrde.epita.fr/wiki/Contact Au programme du Mercredi 30 mai 2018 : * 11h--12h: Partial but Precise Loop Summarization and Its Applications -- Jan Strejcek, Masaryk University https://www.fi.muni.cz/~xstrejc/ We show a symbolic-execution-based algorithm computing the precise effect of a program cycle on program variables. For a program variable, the algorithm produces an expression representing the variable value after the number of cycle iterations specified by parameters of the expression. The algorithm is partial in the sense that it can fail to find such an expression for some program variables (for example, it fails in cases where the variable value depends on the order of paths in the cycle taken during iterations). We present two applications of this loop summarization procedure. The first is the construction of a nontrivial necessary condition on program input to reach a given program location. The second application is a loop bound detection algorithm, which produces tighter loop bounds than other approaches. -- Jan Strejcek is an associate professor at the Faculty of Informatics of Masaryk University located in Brno, Czech Republic. He received his PhD in Computer Science (2005) and Master degrees in Mathematics (2000) and Computer Science (2001) from the same university. His current research focuses on automata over infinite words, automatic program analysis, and SMT-solving of quantified bitvector formulae. L'entrée du séminaire est libre. Merci de bien vouloir diffuser cette information le plus largement possible. N'hésitez pas à nous faire parvenir vos suggestions d'orateurs. -- Guillaume TOCHON Maître de conférences // Assistant Professor LRDE, EPITA 18, rue Pasteur 94270 Le Kremlin-Bicêtre

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seminaire May 2018