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A Component-Based Hybrid Systems Verification and Implementation Tool in KeYmaera X (Tool Demonstration)

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Cyber Physical Systems. Model-Based Design (CyPhy 2018, WESE 2018)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 11615))

Abstract

Safety-critical cyber-physical systems (CPS) should be analyzed using formal verification techniques in order to gain insight into and obtain rigorous safety guarantees about their behavior. For practical purposes, methods are needed to split modeling and verification effort into manageable pieces and link formal artifacts and techniques with implementation. In this paper we present a tool chain that supports component-based modeling and verification of CPS, generation of monitors, and systematic (but unverified) translation of models and monitors into executable code. A running example demonstrates how to model a system in a component-based fashion in differential dynamic logic (dL), how to represent and structure these models in the syntax of the hybrid systems theorem prover KeYmaera X (which implements dL), and how to prove properties in KeYmaera X. The verified components are the source for translation into executable C code, which can be run on controlled components (e.g., a robot). Additionally, we demonstrate how to generate monitors that validate the behavior of uncontrolled components (e.g., validate the assumptions made about obstacles).

This research was sponsored by the Defense Advanced Research Projects Agency (DARPA) under grant number FA8750-18-C-0092 and FA8750-12-2-0291, AFOSR FA9550-18-1-0120, and by the Austrian Science Fund (FWF) P28187-N31.

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Notes

  1. 1.

    The tactics language Bellerophon [8] for verification of hybrid systems provides a way to convey insights by programming hybrid systems proofs.

  2. 2.

    See [14] for further examples of connection programs.

  3. 3.

    http://www.keymaeraX.org.

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Authors and Affiliations

  1. Department of Cooperative Information Systems, Johannes Kepler University, Altenbergerstr. 69, 4040, Linz, Austria

    Andreas Müller & Wieland Schwinger

  2. Computer Science Department, Carnegie Mellon University, Pittsburgh, PA, 15213, USA

    Stefan Mitsch & André Platzer

Authors
  1. Andreas Müller
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  2. Stefan Mitsch
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  3. Wieland Schwinger
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  4. André Platzer
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Corresponding author

Correspondence to Andreas Müller .

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Editors and Affiliations

  1. Computer Science and Engineering, Washington University, St. Louis, MO, USA

    Roger Chamberlain

  2. School of Information Technology, Halmstad University, Halmstad, Sweden

    Walid Taha

  3. Department of Machine Design, KTH Royal Institute of Technology, Stockholm, Sweden

    Martin Törngren

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Müller, A., Mitsch, S., Schwinger, W., Platzer, A. (2019). A Component-Based Hybrid Systems Verification and Implementation Tool in KeYmaera X (Tool Demonstration). In: Chamberlain, R., Taha, W., Törngren, M. (eds) Cyber Physical Systems. Model-Based Design. CyPhy WESE 2018 2018. Lecture Notes in Computer Science(), vol 11615. Springer, Cham. https://doi.org/10.1007/978-3-030-23703-5_5

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  • DOI: https://doi.org/10.1007/978-3-030-23703-5_5

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  • Online ISBN: 978-3-030-23703-5

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