Trail - Directed Model

نویسندگان

  • Stefan Edelkamp
  • Alberto Lluch-Lafuente
  • Stefan Leue
چکیده

HSF-SPIN is a Promela model checker based on heuristic search strategies. It utilizes heuristic estimates in order to direct the search for nding software bugs in concurrent systems. As a consequence, HSF-SPIN is able to nd shorter trails than blind depth-rst search. This paper contributes an extension to the paradigm of directed model checking to shorten already established unacceptable long error trails. This approach has been implemented in HSF-SPIN. For selected benchmark and industrial communication protocols experimental evidence is given that trail-directed model-checking eeectively shortcuts existing witness paths.

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تاریخ انتشار 2001