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This paper proposes a model-based software safety analysis method for flight control software. Firstly, the AADL architecture model and error model of flight control software are constructed separately. Then we convert the AADL model of flight control software into extended Markov chain model. We can evaluate safety of software component by calculate the probability of component state in different...
Benefiting from the virtualization technology, virtual cluster system possesses a lot of advantages different from traditional cluster system. However, the availability analysis of virtual cluster system is still short of efficient methods. The availability analysis of virtual cluster node is the base of analyzing the availability of virtual cluster system. In this paper, we summarize a typical architecture...
In order to combine the power of simulation-based and formal techniques, semi-formal methods have been widely explored. Among these methods, abstraction-guided simulation is a quite promising one. In this paper, we propose an abstraction-guided simulation approach aiming to cover hard-to-reach states in functional verification of microprocessors. A Markov model is constructed utilizing the high level...
This paper gives a brief overview of version 3.3 of PRISM, a tool for the automatic formal verification of probabilistic systems, and some of the case studies to which it has already been applied to date.
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