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- W2509505087 abstract "Safety verification of embedded systems modeled as hybrid systems can be scaled up by employing simulation-guided reach set over-approximation techniques. Existing methods are either applicable to only restricted classes of systems, overly conservative, or computationally expensive. We present new techniques to compute a locally optimal bloating factor based on discrepancy functions, which allow construction of reach set over-approximations from simulation traces for general nonlinear systems. The discrepancy functions are critical for tools like C2E2 to verify bounded time safety properties for complex hybrid systems with nonlinear continuous dynamics. The new discrepancy function is computed using local bounds on a matrix measure under an optimal metric such that the exponential change rate of the discrepancy function is minimized. The new technique is less time consuming and less conservative than existing techniques and does not incur significant computational overhead. We demonstrate the effectiveness of our approach by comparing the performance of a prototype implementation with the state-of-the-art reachability analysis tool Flow" @default.
- W2509505087 created "2016-09-16" @default.
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- W2509505087 date "2016-10-01" @default.
- W2509505087 modified "2023-10-11" @default.
- W2509505087 title "Locally optimal reach set over-approximation for nonlinear systems" @default.
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- W2509505087 doi "https://doi.org/10.1145/2968478.2968482" @default.
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