Abstract Model Checking of tccp programs

The Timed Concurrent Constraint programming language (tccp) introduces time aspects into the Concurrent Constraint paradigm. This makes tccp especially appropriate to analyze by model checking timing properties of concurrent systems. However, even if very compact state representations are obtained t...

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Vydané v:	Electronic notes in theoretical computer science Ročník 112; s. 19 - 36
Hlavní autori:	Alpuente, María, del Mar Gallardo, María, Pimentel, Ernesto, Villanueva, Alicia
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Elsevier B.V 02.01.2005
Predmet:	Abstract Interpretation Model Checking Timed Concurrent Constraint Programming Abstract Interpretation Timed Concurrent Constraint Programming Model Checking
ISSN:	1571-0661, 1571-0661
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Popis
Shrnutí:	The Timed Concurrent Constraint programming language (tccp) introduces time aspects into the Concurrent Constraint paradigm. This makes tccp especially appropriate to analyze by model checking timing properties of concurrent systems. However, even if very compact state representations are obtained thanks to the use of constraints in tccp, large state spaces can be still generated which may prevent model checking tools from verifying tccp programs completely. In this paper, we introduce an abstract methodology which is based on over- and under-approximating tccp models and mitigates the state explosion problem which is common to traditional model checking algorithms. We ascertain the conditions for the correctness of the abstract technique and show that, due to the timing aspects of the language, this semantics does not correctly simulate the suspension behavior, which is a key feature of tccp. Then, we present a refined abstract semantics which correctly models suspension.
ISSN:	1571-0661 1571-0661
DOI:	10.1016/j.entcs.2004.01.024