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Combining Forces: How to Formally Verify Informally Defined Embedded Systems

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Formal Methods (FM 2021)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 13047))

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Abstract

Embedded systems are ubiquitous in our daily lives, and they are often used in safety-critical applications, such as cars, airplanes, or medical systems. As a consequence, there is a high demand for formal methods to ensure their safety. Embedded systems are, however, concurrent, real-time dependent, and highly heterogeneous. Hardware and software are deeply intertwined, and the digital control parts interact with an analogous environment. Moreover, the semantics of industrially used embedded system design languages, such as MATLAB/Simulink or SystemC, is typically only informally defined. To formally capture informally defined embedded systems requires a deep understanding of the underlying models of computation. Furthermore, a single formalism and verification tool are typically not powerful enough to cope with the heterogeneity of embedded systems. In this paper, we summarize our work on automated transformations from informal system descriptions into existing formal verification tools. We present ideas to combine the strengths of various languages, formalisms, and verification backends, and discuss promising results, challenges and limitations.

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Notes

  1. 1.

    Several of our case studies and our Simulink2dL transformation are freely available at https://www.uni-muenster.de/EmbSys/research/Simulink2dL.

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Authors and Affiliations

  1. University of Münster, Einsteinstr. 62, 48149, Münster, Germany

    Paula Herber, Timm Liebrenz & Julius Adelt

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  1. Paula Herber
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  2. Timm Liebrenz
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  3. Julius Adelt
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Correspondence to Paula Herber .

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Editors and Affiliations

  1. University of Twente, Enschede, The Netherlands

    Marieke Huisman

  2. NASA Ames Research Center, Moffett Field, CA, USA

    Corina Păsăreanu

  3. Institute of Software, Chinese Academy of Sciences, Beijing, China

    Naijun Zhan

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Herber, P., Liebrenz, T., Adelt, J. (2021). Combining Forces: How to Formally Verify Informally Defined Embedded Systems. In: Huisman, M., Păsăreanu, C., Zhan, N. (eds) Formal Methods. FM 2021. Lecture Notes in Computer Science(), vol 13047. Springer, Cham. https://doi.org/10.1007/978-3-030-90870-6_1

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