Parallel construction of the Symbolic Observation Graph

Abstract

Extended AbstractAn efficient way to cope with the combinatorial explosion problem induced by the model checking process is to compute the Symbolic Observation Graph (SOG) which is a condensed representation of the state space graph based on a symbolic encoding of the nodes. Another way is to parallelize the construction/traversal of the state space on multiple processors. In this paper, we combine the two mentioned approaches by proposing three different approaches to parallelize the construction of the SOG. A multi-threaded approach based on a dynamic load balancing and a shared memory architecture, a distributed approach based on a distributed memory architecture and a hybrid approach that combines the two previous approaches.