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Abstract : |
Abstract. We present a model-checker for boolean programs with (possibly recursive) procedures and the temporal logic LTL. The checker is guaranteed to terminate even for (usually faulty) programs in which the depth of the recursion is not bounded. The algorithm uses automata to nitely represent possibly innite sets of stack contents and BDDs to compactly represent nite sets of values of boolean variables. We illustrate the checker on some examples and compare it with the Bebop tool of Ball and Rajamani., |