We show that termination proofs by a version of the dependency pair method can be simulated by semantic labeling plus multiset path orders. By incorporating a flattening technique into multiset path orders the simulation result can be extended to the dependency pair method for relative termination, introduced by Iborra et al. This result allows us to improve applicability of their dependency pair method.
@InProceedings{saito_et_al:LIPIcs.FSCD.2024.13, author = {Saito, Teppei and Hirokawa, Nao}, title = {{Simulating Dependency Pairs by Semantic Labeling}}, booktitle = {9th International Conference on Formal Structures for Computation and Deduction (FSCD 2024)}, pages = {13:1--13:20}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-323-2}, ISSN = {1868-8969}, year = {2024}, volume = {299}, editor = {Rehof, Jakob}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSCD.2024.13}, URN = {urn:nbn:de:0030-drops-203423}, doi = {10.4230/LIPIcs.FSCD.2024.13}, annote = {Keywords: Term rewriting, Relative termination, Semantic labeling, Dependency pairs} }
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