Hybrid Analysis for Partial Order Reduction of Programs with Arrays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10311872" target="_blank" >RIV/00216208:11320/16:10311872 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-662-49122-5_14" target="_blank" >http://dx.doi.org/10.1007/978-3-662-49122-5_14</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-662-49122-5_14" target="_blank" >10.1007/978-3-662-49122-5_14</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybrid Analysis for Partial Order Reduction of Programs with Arrays

Popis výsledku v původním jazyce

An important component of efficient approaches to software model checking and systematic concurrency testing is partial order reduction, which eliminates redundant non-deterministic thread scheduling choices during the state space traversal. Thread choices have to be created only at the execution of actions that access the global state visible by multiple threads, so the key challenge is to precisely determine the set of such globally-relevant actions. This includes accesses to object fields and array elements, and thread synchronization. However, some tools completely disable thread choices at actions that access individual array elements in order to avoid state explosion. We show that they can miss concurrency errors in such a case. Then, as the main contribution, we present a new hybrid analysis that identifies globally-relevant actions that access arrays. Our hybrid analysis combines static analysis with dynamic analysis, usage of information from dynamic program states, and symbolic interpretation of program statements. Results of experiments with two popular approaches to partial order reduction show that usage of the hybrid analysis (1) eliminates many additional redundant thread choices and (2) improves the performance of software model checking on programs that use arrays.

Název v anglickém jazyce

Hybrid Analysis for Partial Order Reduction of Programs with Arrays

Popis výsledku anglicky

An important component of efficient approaches to software model checking and systematic concurrency testing is partial order reduction, which eliminates redundant non-deterministic thread scheduling choices during the state space traversal. Thread choices have to be created only at the execution of actions that access the global state visible by multiple threads, so the key challenge is to precisely determine the set of such globally-relevant actions. This includes accesses to object fields and array elements, and thread synchronization. However, some tools completely disable thread choices at actions that access individual array elements in order to avoid state explosion. We show that they can miss concurrency errors in such a case. Then, as the main contribution, we present a new hybrid analysis that identifies globally-relevant actions that access arrays. Our hybrid analysis combines static analysis with dynamic analysis, usage of information from dynamic program states, and symbolic interpretation of program statements. Results of experiments with two popular approaches to partial order reduction show that usage of the hybrid analysis (1) eliminates many additional redundant thread choices and (2) improves the performance of software model checking on programs that use arrays.

Druh

D - Stať ve sborníku

CEP obor

IN - Informatika

OECD FORD obor

—

Projekt

<a href="/cs/project/GP13-12121P" target="_blank" >GP13-12121P: Praktická verifikace programů s použitím kombinace statické a dynamické analýzy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

17th International Conference on Verification, Model Checking, and Abstract Interpretation (VMCAI 2016)

ISBN

978-3-662-49121-8

ISSN

0302-9743

e-ISSN

—

Počet stran výsledku

20

Strana od-do

291-310

Název nakladatele

Springer

Místo vydání

Germany

Místo konání akce

USA

Datum konání akce

17. 1. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000375148800014