The WCET Tool Challenge 2011

Following the successful WCET Tool Challenges in 2006 and 2008, the third event in this series was organized in 2011, again with support from the ARTIST DESIGN Network of Excellence. Following the practice established in the previous Challenges, the WCET Tool Challenge 2011 (WCC'11) defined two kinds of problems to be solved by the Challenge participants with their tools, WCET problems, which ask for bounds on the execution time, and flow-analysis problems, which ask for bounds on the number of times certain parts of the code can be executed. The benchmarks to be used in WCC'11 were debie1, PapaBench, and an industrial-strength application from the automotive domain provided by Daimler AG. Two default execution platforms were suggested to the participants, the ARM7 as "simple target'' and the MPC5553/5554 as a "complex target,'' but participants were free to use other platforms as well. Ten tools participated in WCC'11: aiT, Astr\'ee, Bound-T, FORTAS, METAMOC, OTAWA, SWEET, TimeWeaver, TuBound and WCA

Towards Adaptable Control Flow Segmentation for measurement-Based Execution Time Analysis

During the design of embedded real-time systems, engineers have to consider the temporal behavior of software running on a particular hardware platform. Measurement-based timing analysis is a technique that combines elements from static code analysis with execution time measurements on real physical hardware. Because performing exhaustive measurement is generally not tractable, some kind of abstraction must be used to deal with the combinatoric complexity of real software. We propose an adaptable measurement-based analysis approach that uses the novel flexible abstraction of a segment graph to model control flow at varying levels of detail. We also present preliminary experimental results produced by a prototype implementation

WCET Tool Challenge 2011 : Report

Following the successful WCET Tool Challenges in 2006 and 2008, the third event in this series was organized in 2011, again with support from the ARTIST DESIGN Network of Excellence. Following the practice established in the previous Challenges, the WCET Tool Challenge 2011 (WCC’11) defined two kinds of problems to be solved by the Challenge participants with their tools, WCET problems, which ask for bounds on the execution time, and flow-analysis problems, which ask for bounds on the number of times certain parts of the code can be executed. The benchmarks to be used in WCC’11 were debie1, PapaBench, and an industrial-strength application from the automotive domain provided by Daimler. Two default execution platforms were suggested to the participants, the ARM7 as “simple target” and the MPC5553/5554 as a “complex target,” but participants were free to use other platforms as well. Ten tools participated in WCC’11: aiT, Astr´ee, Bound-T, FORTAS, METAMOC, OTAWA, SWEET, TimeWeaver, TuBound and WC