Abstract
Java Path nder (JPF) is a virtual machine executing Java byte- code that is able to perform model checking using backtracking execution. Due to backtracking, parts of a program may be ex- ecuted multiple times during model checking. Hence, we explore whether method summaries can be used to make JPF's model checking more efficient. We present the design and implementa- tion of dynamically generated summaries as an extension of JPF. While our summaries incur an overhead that outweighs the bene- ts in most cases, the approach shows promise in certain cases, in particular when stateless model checking is used. We also provide some results related to cases when our summaries are applicable that could provide guidance for future work within this eld.
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