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Formal Verification of Complex Properties on PLC Programs
Abstract : Formal verification has become a recommended practice in the safety-critical application areas. However, due to the complexity of practical control and safety systems, the state space explosion often prevents the use of formal analysis. In this paper we extend our former verification methodology with effective property preserving reduction techniques. For this purpose we developed general rule-based reductions and a customized version of the Cone of Influence (COI) reduction. Using these methods, the verification of complex requirements formalised with temporal logics (e.g. CTL, LTL) can be orders of magnitude faster. We use the NuSMV model checker on a real-life PLC program from CERN to demonstrate the performance of our reduction techniques.
Cited literature [13 references]
https://hal.inria.fr/hal-01398021
Contributor : Hal Ifip <>
Submitted on : Wednesday, November 16, 2016 - 3:39:27 PM
Last modification on : Tuesday, November 26, 2019 - 4:12:08 PM
Long-term archiving on: : Thursday, March 16, 2017 - 4:59:21 PM
Contributor : Hal Ifip <>
Submitted on : Wednesday, November 16, 2016 - 3:39:27 PM
Last modification on : Tuesday, November 26, 2019 - 4:12:08 PM
Long-term archiving on: : Thursday, March 16, 2017 - 4:59:21 PM
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