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Modular Termination Proofs of Recursive Java Bytecode Programs by Term Rewriting Brockschmidt, Marc Otto, Carsten Giesl, Jürgen termination Java Bytecode term rewriting recursion In earlier work we presented an approach to prove termination of non-recursive Java Bytecode (JBC) programs automatically. Here, JBC programs are first transformed to finite termination graphs which represent all possible runs of the program. Afterwards, the termination graphs are translated to term rewrite systems (TRSs) such that termination of the resulting TRSs implies termination of the original JBC programs. So in this way, existing techniques and tools from term rewriting can be used to prove termination of JBC automatically. In this paper, we improve this approach substantially in two ways: (1) We extend it in order to also analyze recursive JBC programs. To this end, one has to represent call stacks of arbitrary size. (2) To handle JBC programs with several methods, we modularize our approach in order to re-use termination graphs and TRSs for the separate methods and to prove termination of the resulting TRS in a modular way. We implemented our approach in the tool AProVE. Our experiments show that the new contributions increase the power of termination analysis for JBC significantly. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Marc Brockschmidt and Carsten Otto and Jürgen Giesl 2011 Is Part Of LIPIcs, Volume 10, 22nd International Conference on Rewriting Techniques and Applications (RTA'11) (2011) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.RTA.2011.155 urn:nbn:de:0030-drops-31146 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.RTA.2011.155 eng https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode