Combined Global and Local Search for the Falsification of Hybrid Systems

0431640 - ÚI 2015 RIV CH eng C - Conference Paper (international conference)
Kuřátko, Jan - Ratschan, Stefan
Combined Global and Local Search for the Falsification of Hybrid Systems.
Formal Modeling and Analysis of Timed Systems. Cham: Springer, 2014 - (Legay, A.; Bozga, M.), s. 146-160. Lecture Notes in Computer Science, 8711. ISBN 978-3-319-10511-6. ISSN 0302-9743.
[FORMATS 2014. International Conference /12./. Florence (IT), 08.09.2014-10.09.2014]
R&D Projects: GA ČR GCP202/12/J060
Institutional support: RVO:67985807
Keywords : hybrid systems * falsification * optimization
Subject RIV: IN - Informatics, Computer Science

In this paper we solve the problem of finding a trajectory that shows that a given hybrid dynamical system with deterministic evolution leaves a given set of states considered to be safe. The algorithm combines local with global search for achieving both efficiency and global convergence. In local search, it exploits derivatives for efficient computation. Unlike other methods for falsification of hybrid systems with deterministic evolution, we do not restrict our search to trajectories of a certain bounded length but search for error trajectories of arbitrary length.
Permanent Link: http://hdl.handle.net/11104/0236241