eprintid: 1013 rev_number: 11 eprint_status: archive userid: 30 dir: disk0/00/00/10/13 datestamp: 2011-11-22 11:25:48 lastmod: 2011-12-20 12:00:25 status_changed: 2011-11-22 11:25:48 type: conference_item metadata_visibility: show creators_name: Edelkamp, Stefan creators_name: Lluch-Lafuente, Alberto creators_id: creators_id: alberto.lluch@imtlucca.it title: Abstraction in directed model checking ispublished: unpub subjects: QA75 divisions: CSA full_text_status: public pres_type: paper abstract: Abstraction is one of the most important issues to cope with large and infinite state spaces in model checking and to reduce the verification efforts. The abstract system is smaller than the original one and if the abstract system satisfies a correctness specification, so does the concrete one. However, abstractions may introduce a behavior violating the specification that is not present in the original system. This paper bypasses this problem by proposing the combination of abstraction with heuristic search to improve error detection. The abstract system is explored in order to create a database that stores the exact distances from abstract states to the set of abstract error states. To check, whether or not the abstract behavior is present in the original system, effcient exploration algorithms exploit the database as a guidance. date: 2004 pagerange: 7-13 event_title: Workshop on Connecting Planning Theory with Practice, International Conference on Automated Planning and Scheduling event_location: Whistler, Canada event_dates: June 3-7 2004 event_type: workshop refereed: TRUE related_url_url: http://www.tzi.de/~edelkamp/publications/conf/aips/Edelkamp04a.pdf related_url_type: author citation: Edelkamp, Stefan and Lluch-Lafuente, Alberto Abstraction in directed model checking. In: Workshop on Connecting Planning Theory with Practice, International Conference on Automated Planning and Scheduling, June 3-7 2004, Whistler, Canada pp. 7-13. (Unpublished) (2004) document_url: http://eprints.imtlucca.it/1013/1/edelkamp_lluch-lafiuente_2004.pdf