Why Model Checking Can Improve WCET Analysis

Metzner, Alexander

doi:10.1007/978-3-540-27813-9_26

Cited by 42 publications

(25 citation statements)

References 9 publications

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“…The Models are written in a simple language called Promela, and these models can be simulated randomly or interactively using SPIN. Spin can generate efficient verifiers that search for a counterexample to correctness specifications applied to a model [36].…”

Section: ) Spinmentioning

confidence: 99%

Performance Evaluation of Real-Time Systems

Sharma

Elmiligi²,

Gebali

2015

IJCDS

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Performance evaluation of the Computer Systems has been a challenging task. Measurement of Worst Case Execution Time (WCET) is an important metrics for evaluating the performance of the Real Time Systems (RTSs). In this paper, we explore different methods used for WCET estimation. We mainly focus on three different techniques that are used for WCET estimation i.e. Static, Measurement-based, and Hybrid. The objective here is to provide a comparative analysis of various popularly used WCET measurement tools to guide researchers and engineers to be able use the most suitable techniques for their target applications. We also explore the probabilistic approach through model checking in our work.

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Section: ) Spinmentioning

confidence: 99%

Performance Evaluation of Real-Time Systems

Sharma

Elmiligi²,

Gebali

2015

IJCDS

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“…On the other hand, [16] uses model checking alone for cache and path analysis. However, [16] does not employ the modeling of other important micro-architectural features (e.g.…”

Section: Related Workmentioning

confidence: 99%

“…On the other hand, [16] uses model checking alone for cache and path analysis. However, [16] does not employ the modeling of other important micro-architectural features (e.g. pipeline) and it is unclear whether the employed technique would remain scalable in presence of pipeline or other micro-architectural features.…”

Section: Related Workmentioning

confidence: 99%

Scalable and Precise Refinement of Cache Timing Analysis via Model Checking

Chattopadhyay

Roychoudhury

2011

2011 IEEE 32nd Real-Time Systems Symposium

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Abstract-Hard real time systems require absolute guarantees in their execution times. Worst case execution time (WCET) of a program has therefore become an important problem to address. However, performance enhancing features of a processor (e.g. cache) make WCET analysis a difficult problem. In this paper, we propose a novel approach of combining abstract interpretation and model checking for different varieties of cache analysis ranging from single to multi-core platforms. Our modeling is used to develop a precise yet scalable timing analysis method on top of the Chronos WCET analysis tool. Experimental results demonstrate that we can obtain significant improvement in precision with reasonable analysis time overhead.

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“…The use of model checking for the analysis of real-time systems is not new. Metzner illustrates in [17] the effectiveness of using model checking for WCET analysis using the notion of a basic block automaton to represent a program. A static analysis based formal approach is similarly presented in [15] to compute tight bounds on synchronous programs.…”

Section: Introductionmentioning

confidence: 99%

Tight WCRT analysis of synchronous C programs

Roop

Andalam

Hanxleden

et al. 2009

Proceedings of the 2009 International Conference on Compilers, Architecture, and Synthesis for Embedded Systems

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Accurate estimation of the tick length of a synchronous program is essential for efficient and predictable implementations that are devoid of timing faults. The techniques to determine the tick length statically are classified as worst case reaction time (WCRT) analysis. While a plethora of techniques exist for worst case execution time (WCET) analysis of procedural programs, there are only a handful of techniques for determining the WCRT value of synchronous programs. Most of these techniques produce overestimates and hence are unsuitable for the design of systems that are predictable while being also efficient. In this paper, we present an approach for the accurate estimation of the exact WCRT value of a synchronous program, called its tight WCRT value, using model checking. For our input specifications we have selected a synchronous C based language called PRET-C that is designed for programming Precision Timed (PRET) architectures. We then present an approach for static WCRT analysis of these programs via an intermediate format called TCCFG. This intermediate representation is then compiled to produce the input for the model checker. Experimental results that compare our approach to existing approaches demonstrate the benefits of the proposed approach. The proposed approach, while presented for PRET-C is also applicable for WCRT analysis of Esterel using simple adjustments to the generated model. The proposed approach thus paves the way for a generic approach for determining the tight WCRT value of synchronous programs at compile time. * Roop was supported by research and study leave from Auckland University and a research fellowship for experienced researchers from the Alexander von Humboldt foundation.

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Why Model Checking Can Improve WCET Analysis

Cited by 42 publications

References 9 publications

Performance Evaluation of Real-Time Systems

Performance Evaluation of Real-Time Systems

Scalable and Precise Refinement of Cache Timing Analysis via Model Checking

Tight WCRT analysis of synchronous C programs

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