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Automatic Derivation of Loop Bounds and Infeasible Paths for WCET Analysis using Abstract Execution
Mälardalen University, Department of Computer Science and Electronics.ORCID iD: 0000-0001-6571-0175
Mälardalen University, Department of Computer Science and Electronics.
Mälardalen University, Department of Computer Science and Electronics.
Mälardalen University, Department of Computer Science and Electronics.ORCID iD: 0000-0001-5297-6548
2006 (English)In: Proceedings - Real-Time Systems Symposium, 2006, p. 57-66Conference paper, Published paper (Refereed)
Abstract [en]

Static Worst-Case Execution Time (WCET) analysis is a technique to derive upper bounds for the execution times of programs. Such bounds are crucial when designing and verifying real-time systems. A key component for statically deriving safe and tight WCET bounds is information on the possible program flow through the program. Such flow information can be provided manually by user annotations, or automatically by a flow analysis. To make WCET analysis as simple and safe as possible, it should preferably be automatically derived, with no or very limited user interaction. In this paper we present a method for deriving such flow information called abstract execution. This method can automatically calculate loop bounds, bounds for including nested loops, as well as many types of infeasible paths. Our evaluations show that it can calculate WCET estimates automatically, without any user annotations, for a range of benchmark programs, and that our techniques for nested loops and infeasible paths sometimes can give substantially better WCET estimates than using loop bounds analysis only.

Place, publisher, year, edition, pages
2006. p. 57-66
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-6955DOI: 10.1109/RTSS.2006.12ISI: 000244448800006Scopus ID: 2-s2.0-35148820173ISBN: 0769527612 (print)OAI: oai:DiVA.org:mdh-6955DiVA, id: diva2:236965
Conference
27th IEEE International Real-Time Systems Symposium, RTSS 2006; Rio de Janeiro; 5 December 200 6 through 8 December 2006
Available from: 2009-09-25 Created: 2009-09-25 Last updated: 2016-01-12Bibliographically approved

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Gustafsson, JanLisper, Björn

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Citation style
  • apa
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