We adapt the TreeRePair tree compression algorithm and use it as an intermediate step in proving termination of term rewriting systems. We introduce a cost function that approximates the size of constraint systems that specify compatibility of matrix interpretations. We show how to integrate the compression algorithm with the Dependency Pairs transformation. Experiments show that compression reduces running times of constraint solvers, and thus improves the power of automated termination provers.
@InProceedings{bau_et_al:LIPIcs.RTA.2013.97, author = {Bau, Alexander and Lohrey, Markus and N\"{o}th, Eric and Waldmann, Johannes}, title = {{Compression of Rewriting Systems for Termination Analysis}}, booktitle = {24th International Conference on Rewriting Techniques and Applications (RTA 2013)}, pages = {97--112}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-53-8}, ISSN = {1868-8969}, year = {2013}, volume = {21}, editor = {van Raamsdonk, Femke}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.RTA.2013.97}, URN = {urn:nbn:de:0030-drops-40561}, doi = {10.4230/LIPIcs.RTA.2013.97}, annote = {Keywords: termination of rewriting, matrix interpretations, constraint solving, tree compression} }
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