Publication

[BuchholzHHZ11] Model Checking Algorithms for CTMDPs Buchholz, P.; Hahn, E. M.; Hermanns, H. and Zhang, L. In Computer Aided Verification - 23rd International Conference (CAV), pages 225-242, Springer, Lecture Notes in Computer Science 6806, 2011.Downloads: pdf, bibURL: http://dx.doi.org/10.1007/978-3-642-22110-1_19 Abstract. Continuous Stochastic Logic (CSL) can be interpreted over continuoustime Markov decision processes (CTMDPs) to specify quantitative properties of stochastic systems that allow some external control. Model checking CSL formulae over CTMDPs requires then the computation of optimal control strategies to prove or disprove a formula. The paper presents a conservative extension of CSL over CTMDPs--with rewards--and exploits established results for CTMDPs for model checking CSL. A new numerical approach based on uniformization is devised to compute time bounded reachability results for time dependent control strategies. Experimental evidence is given showing the efficiency of the approach.