Abstract
Model checking has been successfully used for detailed formal verification of instrumentation and control (IC) systems, as long as the focus has been on the application logic, alone. In safety-critical applications, fault tolerance is also an important aspect, but introducing IC hardware failure modes to the formal models comes at a significant computational cost. Previous attempts have led to state space explosion, and prohibitively long processing times. In this paper, we present a method for adding hardware component failures and communication delays into IC application logic models for the NuSMV symbolic model checker. Based on a case study built around a semi-fictitious, four-redundant nuclear power plant protection system, we demonstrate how even detailed system designs can be verified, if the focus is kept on single failure tolerance.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the IEEE International Conference on Industrial Technology, ICIT 2019 |
| Publisher | Institute of Electrical and Electronic Engineers IEEE |
| Pages | 969 - 974 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-1-5386-6376-9 |
| DOIs | |
| Publication status | Published - 2019 |
| MoE publication type | A4 Article in a conference publication |
| Event | 2019 IEEE International Conference on Industrial Technology, ICIT 2019 - Melbourne, Australia Duration: 13 Feb 2019 → 15 Feb 2019 |
Conference
| Conference | 2019 IEEE International Conference on Industrial Technology, ICIT 2019 |
|---|---|
| Country | Australia |
| City | Melbourne |
| Period | 13/02/19 → 15/02/19 |
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Keywords
- Fault tolerance
- Formal verification
- Model checking
Cite this
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Verification of fault tolerant safety I&C systems using model checking. / Pakonen, Antti; Buzhinsky, Igor.
Proceedings of the IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronic Engineers IEEE, 2019. p. 969 - 974.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - Verification of fault tolerant safety I&C systems using model checking
AU - Pakonen, Antti
AU - Buzhinsky, Igor
PY - 2019
Y1 - 2019
N2 - Model checking has been successfully used for detailed formal verification of instrumentation and control (IC) systems, as long as the focus has been on the application logic, alone. In safety-critical applications, fault tolerance is also an important aspect, but introducing IC hardware failure modes to the formal models comes at a significant computational cost. Previous attempts have led to state space explosion, and prohibitively long processing times. In this paper, we present a method for adding hardware component failures and communication delays into IC application logic models for the NuSMV symbolic model checker. Based on a case study built around a semi-fictitious, four-redundant nuclear power plant protection system, we demonstrate how even detailed system designs can be verified, if the focus is kept on single failure tolerance.
AB - Model checking has been successfully used for detailed formal verification of instrumentation and control (IC) systems, as long as the focus has been on the application logic, alone. In safety-critical applications, fault tolerance is also an important aspect, but introducing IC hardware failure modes to the formal models comes at a significant computational cost. Previous attempts have led to state space explosion, and prohibitively long processing times. In this paper, we present a method for adding hardware component failures and communication delays into IC application logic models for the NuSMV symbolic model checker. Based on a case study built around a semi-fictitious, four-redundant nuclear power plant protection system, we demonstrate how even detailed system designs can be verified, if the focus is kept on single failure tolerance.
KW - Fault tolerance
KW - Formal verification
KW - Model checking
UR - http://www.scopus.com/inward/record.url?scp=85069054364&partnerID=8YFLogxK
U2 - 10.1109/ICIT.2019.8755014
DO - 10.1109/ICIT.2019.8755014
M3 - Conference article in proceedings
SP - 969
EP - 974
BT - Proceedings of the IEEE International Conference on Industrial Technology, ICIT 2019
PB - Institute of Electrical and Electronic Engineers IEEE
ER -