NDLI: A rewriting-based approach to trace analysis

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A rewriting-based approach to trace analysis

Content Provider	NASA Technical Reports Server (NTRS)
Author	Havelund Sr., Klaus Rosu, Grigore
Copyright Year	2002
Description	We present a rewriting-based algorithm for efficiently evaluating future time Linear Temporal Logic (LTL) formulae on finite execution traces online. While the standard models of LTL are infinite traces, finite traces appear naturally when testing and/or monitoring red applications that only run for limited time periods. The presented algorithm is implemented in the Maude executable specification language and essentially consists of a set of equations establishing an executable semantics of LTL using a simple formula transforming approach. The algorithm is further improved to build automata on-the-fly from formulae, using memoization. The result is a very efficient and small Maude program that can be used to monitor program executions. We furthermore present an alternative algorithm for synthesizing probably minimal observer finite state machines (or automata) from LTL formulae, which can be used to analyze execution traces without the need for a rewriting system, and can hence be used by observers written in conventional programming languages. The presented work is part of an ambitious runtime verification and monitoring project at NASA Ames, called PATHEXPLORER, and demonstrates that rewriting can be a tractable and attractive means for experimenting and implementing program monitoring logics.
File Size	1348110
Page Count	20
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20030014746
Archival Resource Key	ark:/13960/t2r54kn4w
Language	English
Publisher Date	2002-01-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Linear Systems Algorithms Operators Mathematics Semantics Automata Theory Monitors Programming Languages Temporal Logic Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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