Safety-level communication in railway interlockings
Science of Computer Programming - Special issue on COST 247, verification and validation methods for formal descriptions
Model checking
Principles of Model Checking (Representation and Mind Series)
Principles of Model Checking (Representation and Mind Series)
Specifying a testing oracle for train stations
Proceedings of the 8th International Workshop on Model-Driven Engineering, Verification and Validation
Specifying a testing oracle for train stations --- going beyond with product line technology
MODELS'11 Proceedings of the 2011th international conference on Models in Software Engineering
Distributing the challenge of model checking interlocking control tables
ISoLA'12 Proceedings of the 5th international conference on Leveraging Applications of Formal Methods, Verification and Validation: applications and case studies - Volume Part II
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In this paper we present a verification strategy for signalling principles for the control of a railway interlocking system written in ladder logic. All translation steps have been implemented and tested on a real-world example of a railway interlocking system. The steps in this translation are as follows: 1. The development of a mathematical model of a railway interlocking system and the translation from ladder logic into this model. 2. The development of verification conditions guaranteeing the correctness of safety conditions. 3. The verification of safety conditions using a satisfiability solver. 4. The generation of safety conditions from signalling principles using a topological model of a railway yard.