String Abstraction for Model Checking of C Programs

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F19%3A00107758" target="_blank" >RIV/00216224:14330/19:00107758 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007%2F978-3-030-30923-7_5" target="_blank" >https://link.springer.com/chapter/10.1007%2F978-3-030-30923-7_5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-30923-7_5" target="_blank" >10.1007/978-3-030-30923-7_5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

String Abstraction for Model Checking of C Programs

Popis výsledku v původním jazyce

Automatic abstraction is a powerful software verification technique. In this paper, we elaborate an abstract domain for C strings, that is, null-terminated arrays of characters. We describe the abstract semantics of basic string operations and prove their soundness with regards to previously established concrete semantics of those operations. In addition to a selection of string functions from the standard C library, we provide semantics for character access and update, enabling automatic lifting of arbitrary string-manipulating code into the domain. The domain we present (called M-String) has two other abstract domains as its parameters: an index (bound) domain and a character domain. Picking different constituent domains allows M-String to be tailored for specific verification tasks, balancing precision against complexity. In addition to describing the domain theoretically, we also provide an executable implementation of the abstract operations. Using a tool which automatically lifts existing programs into the M-String domain along with an explicit-state model checker, we have evaluated the proposed domain experimentally on a few simple but realistic test programs.

Název v anglickém jazyce

String Abstraction for Model Checking of C Programs

Popis výsledku anglicky

Automatic abstraction is a powerful software verification technique. In this paper, we elaborate an abstract domain for C strings, that is, null-terminated arrays of characters. We describe the abstract semantics of basic string operations and prove their soundness with regards to previously established concrete semantics of those operations. In addition to a selection of string functions from the standard C library, we provide semantics for character access and update, enabling automatic lifting of arbitrary string-manipulating code into the domain. The domain we present (called M-String) has two other abstract domains as its parameters: an index (bound) domain and a character domain. Picking different constituent domains allows M-String to be tailored for specific verification tasks, balancing precision against complexity. In addition to describing the domain theoretically, we also provide an executable implementation of the abstract operations. Using a tool which automatically lifts existing programs into the M-String domain along with an explicit-state model checker, we have evaluated the proposed domain experimentally on a few simple but realistic test programs.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/GA18-02177S" target="_blank" >GA18-02177S: Abstrakce a jiné techniky v semi-symbolické verifikaci programů</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Model Checking Software

ISBN

9783030309220

ISSN

0302-9743

e-ISSN

1611-3349

Počet stran výsledku

20

Strana od-do

74-93

Název nakladatele

Springer International Publishing

Místo vydání

Cham

Místo konání akce

Peking

Datum konání akce

1. 1. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000876678900005