Unbounded-Time Safety Verification of Guarded LTI Models with Inputs by Abstract Acceleration.

Unbounded-Time Safety Verification of Guarded LTI Models with Inputs by Abstract Acceleration.
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DOI:
10.1007/s10817-020-09562-z
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发表时间:
2021
期刊:
Journal of automated reasoning
影响因子:
--
通讯作者:
Kroening D
Kroening D
中科院分区:
其他
文献类型:
--
作者:
Cattaruzza D;Abate A;Schrammel P;Kroening D

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Reachability analysis of dynamical models is a relevant problem that has seen much progress in the last decades, however with clear limitations pertaining to the nature of the dynamics and the soundness of the results. This article focuses on sound safety verification of unbounded-time (infinite-horizon) linear time-invariant (LTI) models with inputs using reachability analysis. We achieve this using counterexample-guided Abstract Acceleration: this approach over-approximates the reachability tube of the LTI model over an unbounded time horizon by using abstraction, possibly finding concrete counterexamples for refinement based on the given safety specification. The technique is applied to a number of LTI models and the results show robust performance when compared to state-of-the-art tools.
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