Model-checking infinite-state nuclear safety I&C systems with nuXmv

Antti Pakonen

doi:10.1109/INDIN45523.2021.9557445

Model-checking infinite-state nuclear safety I&C systems with nuXmv

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

5 Citations (Scopus)

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Abstract

For over a decade, model checking has been successfully used to formally verify the instrumentation and control (I&C) logic design in Finnish nuclear power plant projects. One of the practical challenges is that the model checker NuSMV forces the user to abstract the way analog signals are processed in the model, which causes extra manual work, and could mask actual design issues. In this paper, we experiment with the newer tool nuXmv, which supports infinite-state modelling. Using actual models from practical industrial projects, we show that after changing the analog signal processing to be based on real number math, the analysis times are still manageable. The disadvantage is that certain useful types of formal properties are not supported by the infinite-state algorithms. We also discuss the nuclear industry specific features of I&C programming languages, which cause significant constraints on domain-specific formal verification method and tool development.

Original language	English
Title of host publication	Proceedings - 2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021
Publisher	IEEE Institute of Electrical and Electronic Engineers
Number of pages	6
ISBN (Electronic)	978-1-7281-4395-8
ISBN (Print)	978-1-7281-4396-5
DOIs	https://doi.org/10.1109/INDIN45523.2021.9557445
Publication status	Published - 23 Jul 2021
MoE publication type	A4 Article in a conference publication
Event	2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021 - Palma de Mallorca, Spain Duration: 21 Jul 2021 → 23 Jul 2021

Conference

Conference	2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021
Period	21/07/21 → 23/07/21

Keywords

Industries
Computer languages
Heuristic algorithms
Signal processing algorithms
Manuals
Tools
Signal processing

Access to Document

10.1109/INDIN45523.2021.9557445

Pakonen_INDIN_2021_preprintAccepted author manuscript, 416 KB

Cite this

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title = "Model-checking infinite-state nuclear safety I&C systems with nuXmv",

abstract = "For over a decade, model checking has been successfully used to formally verify the instrumentation and control (I&C) logic design in Finnish nuclear power plant projects. One of the practical challenges is that the model checker NuSMV forces the user to abstract the way analog signals are processed in the model, which causes extra manual work, and could mask actual design issues. In this paper, we experiment with the newer tool nuXmv, which supports infinite-state modelling. Using actual models from practical industrial projects, we show that after changing the analog signal processing to be based on real number math, the analysis times are still manageable. The disadvantage is that certain useful types of formal properties are not supported by the infinite-state algorithms. We also discuss the nuclear industry specific features of I&C programming languages, which cause significant constraints on domain-specific formal verification method and tool development.",

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note = "Funding Information: This work has been funded by the Finnish Research Pro-gramme on Nuclear Power Plant Safety 2019-2022 (SAFIR 2022). We wish to thank Dr. Igor Buzhinsky-formerly of Aalto University-for valuable discussions and comments. Funding Information: ACKNOWLEDGMENT This work has been funded by the Finnish Research Programme on Nuclear Power Plant Safety 2019-2022 (SAFIR 2022). We wish to thank Dr. Igor Buzhinsky—formerly of Aalto University—for valuable discussions and comments. Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021 ; Conference date: 21-07-2021 Through 23-07-2021",

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Pakonen, A 2021, Model-checking infinite-state nuclear safety I&C systems with nuXmv. in Proceedings - 2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021., 9557445, IEEE Institute of Electrical and Electronic Engineers, 2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021, 21/07/21. https://doi.org/10.1109/INDIN45523.2021.9557445

Model-checking infinite-state nuclear safety I&C systems with nuXmv. / Pakonen, Antti.
Proceedings - 2021 IEEE 19th International Conference on Industrial Informatics, INDIN 2021. IEEE Institute of Electrical and Electronic Engineers, 2021. 9557445.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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N1 - Funding Information: This work has been funded by the Finnish Research Pro-gramme on Nuclear Power Plant Safety 2019-2022 (SAFIR 2022). We wish to thank Dr. Igor Buzhinsky-formerly of Aalto University-for valuable discussions and comments. Funding Information: ACKNOWLEDGMENT This work has been funded by the Finnish Research Programme on Nuclear Power Plant Safety 2019-2022 (SAFIR 2022). We wish to thank Dr. Igor Buzhinsky—formerly of Aalto University—for valuable discussions and comments. Publisher Copyright: © 2021 IEEE.

PY - 2021/7/23

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N2 - For over a decade, model checking has been successfully used to formally verify the instrumentation and control (I&C) logic design in Finnish nuclear power plant projects. One of the practical challenges is that the model checker NuSMV forces the user to abstract the way analog signals are processed in the model, which causes extra manual work, and could mask actual design issues. In this paper, we experiment with the newer tool nuXmv, which supports infinite-state modelling. Using actual models from practical industrial projects, we show that after changing the analog signal processing to be based on real number math, the analysis times are still manageable. The disadvantage is that certain useful types of formal properties are not supported by the infinite-state algorithms. We also discuss the nuclear industry specific features of I&C programming languages, which cause significant constraints on domain-specific formal verification method and tool development.

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KW - Computer languages

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KW - Signal processing algorithms

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Model-checking infinite-state nuclear safety I&C systems with nuXmv

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