Date Added: May 2011
The computation of counterexamples for probabilistic model checking has been an area of active research over the past years. In spite of the achieved theoretical results in this field, there is no freely available tool that allows for the computation and representation of probabilistic counterexamples. The authors present an open source tool called DiPro that can be used with the PRISM and MRMC probabilistic model checkers. It allows for the computation of probabilistic counterexamples for Discrete Time Markov Chains (DTMCs), Continuous Time Markov Chains (CTMCs) and Markov Decision Processes (MDPs). The computed counterexamples can be rendered graphically.