Publication

[CalinCDHZ10] Time-Bounded Reachability in Distributed Input/Output Interactive Probabilistic Chains Calin, G.; Crouzen, P.; D'Argenio, P. R.; Hahn, E. M. and Zhang, L. In Model Checking Software - 17th International SPIN Workshop, pages 193-211, Springer, Lecture Notes in Computer Science 6349, 2010.Downloads: pdf, bibURL: http://dx.doi.org/10.1007/978-3-642-16164-3_15 Abstract. We develop an algorithm to compute timed reachability probabilities for distributed models which are both probabilistic and nondeterministic. To obtain realistic results we consider the recently introduced class of (strongly) distributed schedulers, for which no analysis techniques are known.
Our algorithm is based on reformulating the nondeterministic models as parametric ones, by interpreting scheduler decisions as parameters. We then apply the PARAM tool to extract the reachability probability as a polynomial function, which we optimize using nonlinear programming.