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The Heptane Static Worst-Case Execution Time Estimation Tool Hardy, Damien Rouxel, Benjamin Puaut, Isabelle Worst-Case Execution Time Estimation Static Analysis WCET Estimation Tool Implicit Path Enumeration Technique Estimation of worst-case execution times (WCETs) is required to validate the temporal behavior of hard real time systems. Heptane is an open-source software program that estimates upper bounds of execution times on MIPS and ARM v7 architectures, offered to the WCET estimation community to experiment new WCET estimation techniques. The software architecture of Heptane was designed to be as modular and extensible as possible to facilitate the integration of new approaches. This paper is devoted to a description of Heptane, and includes information on the analyses it implements, how to use it and extend it. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Damien Hardy and Benjamin Rouxel and Isabelle Puaut 2017 Is Part Of OASIcs, Volume 57, 17th International Workshop on Worst-Case Execution Time Analysis (WCET 2017) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.WCET.2017.8 urn:nbn:de:0030-drops-73033 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2017.8 eng https://creativecommons.org/licenses/by/3.0/legalcode