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Using symmetry transformations in equivariant dynamical systems for their safety verification. (English) Zbl 1447.93021
Chen, Yu-Fang (ed.) et al., Automated technology for verification and analysis. 17th international symposium, ATVA 2019, Taipei, Taiwan, October 28–31, 2019. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 11781, 98-114 (2019).
Summary: In this paper, we investigate how symmetry transformations of equivariant dynamical systems can reduce the computation effort for safety verification. Symmetry transformations of equivariant systems map solutions to other solutions. We build upon this result, producing reachsets from other previously computed reachsets. We augment the standard simulation-based verification algorithm with a new procedure that attempts to verify the safety of the system starting from a new initial set of states by transforming previously computed reachsets. This new algorithm required the creation of a new cache-tree data structure for multi-resolution reachtubes. Our implementation has been tested on several benchmarks and has achieved significant improvements in verification time.
For the entire collection see [Zbl 1428.68012].
93B03 Attainable sets, reachability
93B17 Transformations
93C83 Control/observation systems involving computers (process control, etc.)
93B70 Networked control
Breach; DryVR; HARE; S-TaLiRo
Full Text: DOI
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