@incollection{eprints158,
           pages = {271--287},
          volume = {3925},
            year = {2006},
           title = {Partial-Order Reduction for General State Exploring Algorithms},
          series = {Lecture Notes in Computer Science},
          author = {Dragan Bosnacki and Stefan Leue and Alberto Lluch-Lafuente},
       publisher = {Springer},
            note = {{\copyright} Springer-Verlag Berlin Heidelberg 2006. The original publication is available at www.springerlink.com.},
       booktitle = {Model Checking Software (SPIN 2006)},
          editor = {Antti Valmari},
        abstract = {An important component of partial-order based reduction algorithms is the condition that prevents action ignoring, commonly known as the cycle proviso. In this paper we give a new version of this proviso that is applicable to a general search algorithm skeleton also known as the General State Expanding Algorithm (GSEA). GSEA maintains a set of open (visited but not expanded) states from which states are iteratively selected for exploration and moved to a closed set of states (visited and expanded). Depending on the open set data structure used, GSEA can be instantiated as depth-first, breadth-first, or a directed search algorithm. The proviso is characterized by reference to the open and closed set of states in GSEA. As a result the proviso can be computed in an efficient manner during the search based on local information. We implemented partial-order reduction for GSEA based on our proposed proviso in the tool HSF-SPIN, which is an extension of the model checker SPIN for directed model checking. We evaluate the state space reduction achieved by partial-order reduction according to the proviso that we propose by comparing it on a set of benchmark problems to other reduction approaches. We also compare the use of breadth-first search and A*, two algorithms ensuring that counterexamples of minimal length will be found, together with the proviso that we propose.
\}},
             url = {http://eprints.imtlucca.it/158/}
}