Tools and Algorithms for the Construction and Analysis of Systems : 17th International Conference, TACAS 2011, Held as Part of the Joint European Conference on Theory and Practice of Software, ETAPS 2011, Saarbrücken, Germany, March 26--April 3, 2011, Proceedings - Parosh Aziz Abdulla, K. Rustan M. Leino ((Lecture Notes in Computer Science))