[Lrde Annonce] publications: two papers accepted at ATVA'16

I am happy to announce that the following two papers have been accepted at the 14th International Symposium on Automated Technology for Verification and Analysis (ATVA 2016) to be held in Chiba, Japan on 17-19 October 2016. — Heuristics for Checking Liveness Properties with Partial Order Reductions A. Duret-Lutz(1), F. Kordon(2,3), D. Poitrenaud(3,4), E. Renault(1) (1) LRDE, EPITA, Kremlin-Bicêtre, France (2) Sorbonne Universités, UPMC Univ. Paris 06, France (3) CNRS UMR 7606, LIP6, F-75005 Paris, France (4) USPC, Université Paris Descartes, Paris, France https://www.lrde.epita.fr/wiki/Publications/duret.16.atva Abstract: Checking liveness properties with partial-order reductions requires a cycle proviso to ensure that an action cannot be postponed forever. The proviso forces each cycle to contain at least one fully expanded state. We present new heuristics to select which state to expand, hoping to reduce the size of the resulting graph. The choice of the state to expand is done when encountering a dangerous edge. Almost all existing provisos expand the source of this edge, while this paper also explores the expansion of the destination and the use of SCC-based information. — Spot 2.0 — a framework for LTL and ω-automata manipulation Alexandre Duret-Lutz, Alexandre Lewkowicz, Amaury Fauchille, Thibaud Michaud, Etienne Renault, and Laurent Xu LRDE, EPITA, Kremlin-Bicêtre, France https://www.lrde.epita.fr/wiki/Publications/duret.16.atva2 Abstract: We present Spot 2.0, a C++ library with Python bindings and an assortment of command-line tools designed to manipulate LTL and ω-automata in batch. New automata-manipulation tools were introduced in Spot 2.0; they support arbitrary acceptance conditions, as expressible in the Hanoi Omega Automaton format. Besides being useful to researchers who have automata to process, its Python bindings can also be used in interactive environments to teach ω-automata and model checking.