Titlebook: NASA Formal Methods; 7th International Sy Klaus Havelund,Gerard Holzmann,Rajeev Joshi Conference proceedings 2015 Springer International Pu

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Requirements Analysis of a Quad-Redundant Flight Control Systemss Model (TCM). We use a compositional approach with assume-guarantee contracts that correspond to the requirements for software components embedded in an AADL system architecture model. This approach is designed to exploit the verification effort and artifacts that are already part of typical softw

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Partial Order Reduction and Symmetry with Multiple Representativesymmetry reduction is the problem of finding unique (canonical) representatives of equivalence classes of symmetric states. This problem is equivalent to the graph isomorphism problem, for which no polynomial algorithm is known. On the other hand finding multiple (non-canonical) representatives is mu

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Towards Realizability Checking of Contracts Using Theoriesmprove quality of complex embedded systems. Given appropriate architectural descriptions and compositional reasoning rules, these techniques can be used to prove important safety properties about the architecture prior to system construction. Such proofs build from “leaf-level” assume/guarantee comp

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