To split or to conjoin

In-Ho Moon, James H. Kukula, Kavita Ravi, Fabio Somenzi
2000 Proceedings of the 37th conference on Design automation - DAC '00  
Image computation is the key step in fixpoint computations that are extensively used in model checking. Two techniques have been used for this step: one based on conjunction of the terms of the transition relation, and the other based on recursive case splitting. We discuss when one technique outperforms the other, and consequently formulate a hybrid approach to image computation. Experimental results show that the hybrid algorithm is much more robust than the "pure" algorithms and outperforms
more » ... oth of them in most cases. Our findings also shed light on the remark of several researchers that splitting is especially effective in approximate reachability analysis.
doi:10.1145/337292.337305 dblp:conf/dac/MoonKRS00 fatcat:og6tfibaj5eqjod45atwq5bswe