To split or to conjoin

In-Ho Moon, James H. Kukula, Kavita Ravi, Fabio Somenzi
<span title="">2000</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5vn6yyeefbbxtoo3uhwxwjwtme" style="color: black;">Proceedings of the 37th conference on Design automation - DAC &#39;00</a> </i> &nbsp;
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 &raquo; ... 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.
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