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2017 | OriginalPaper | Chapter

Time-Triggered Conversion of Guards for Reachability Analysis of Hybrid Automata

Authors : Stanley Bak, Sergiy Bogomolov, Matthias Althoff

Published in: Formal Modeling and Analysis of Timed Systems

Publisher: Springer International Publishing

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Abstract

A promising technique for the formal verification of embedded and cyber-physical systems is flow-pipe construction, which creates a sequence of regions covering all reachable states over time. Flow-pipe construction methods can check whether specifications are met for all states, rather than just testing using a finite and incomplete set of simulation traces. A fundamental challenge when using flow-pipe construction on high-dimensional systems is the cost of geometric operations, such as intersection and convex hull. We address this challenge by showing that it is often possible to remove the need to perform high-dimensional geometric operations by combining two model transformations, direct time-triggered conversion and dynamics scaling. Further, we prove the overapproximation error in the conversion can be made arbitrarily small. Finally, we show that our transformation-based approach enables the analysis of a drivetrain system with up to 51 dimensions.

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Metadata
Title
Time-Triggered Conversion of Guards for Reachability Analysis of Hybrid Automata
Authors
Stanley Bak
Sergiy Bogomolov
Matthias Althoff
Copyright Year
2017
DOI
https://doi.org/10.1007/978-3-319-65765-3_8

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