A dataflow analysis to improve SAT-based bounded program verification
SAT-based bounded verification of programs consists of the translation of the code and its annotations into a propositional formula. The formula is then analyzed for specification violations using a SAT-solver. This technique is capable of proving the absence of errors up to a given scope. SAT is a...
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paper:paper_03029743_v7041LNCS_n_p138_CuervoParrino2023-06-08T15:28:42Z A dataflow analysis to improve SAT-based bounded program verification Galeotti, Juan Pablo Garbervetsky, Diego Frias, Marcelo Bounded program verifications Empirical evaluations Logical representations NP complete problems Propositional formulas Propositional variables SAT solvers SAT-based bounded verification Verification tools Computational complexity Data flow analysis Formal logic Program translators Verification Formal methods SAT-based bounded verification of programs consists of the translation of the code and its annotations into a propositional formula. The formula is then analyzed for specification violations using a SAT-solver. This technique is capable of proving the absence of errors up to a given scope. SAT is a well-known NP-complete problem, whose complexity depends on the number of propositional variables occurring in the formula. Thus, reducing the number of variables in the logical representation may have a great impact on the overall analysis. We propose a dataflow analysis which infers the set of possible values that can be assigned to each local and instance variable. Unnecessary variables at the SAT level can then be safely removed by relying on the inferred values. We implemented this approach in TACO, a SAT-based verification tool. We present an extensive empirical evaluation and discuss the benefits of the proposed approach. © 2011 Springer-Verlag. Fil:Galeotti, J.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Garbervetsky, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Frias, M.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03029743_v7041LNCS_n_p138_CuervoParrino http://hdl.handle.net/20.500.12110/paper_03029743_v7041LNCS_n_p138_CuervoParrino |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Bounded program verifications Empirical evaluations Logical representations NP complete problems Propositional formulas Propositional variables SAT solvers SAT-based bounded verification Verification tools Computational complexity Data flow analysis Formal logic Program translators Verification Formal methods |
spellingShingle |
Bounded program verifications Empirical evaluations Logical representations NP complete problems Propositional formulas Propositional variables SAT solvers SAT-based bounded verification Verification tools Computational complexity Data flow analysis Formal logic Program translators Verification Formal methods Galeotti, Juan Pablo Garbervetsky, Diego Frias, Marcelo A dataflow analysis to improve SAT-based bounded program verification |
topic_facet |
Bounded program verifications Empirical evaluations Logical representations NP complete problems Propositional formulas Propositional variables SAT solvers SAT-based bounded verification Verification tools Computational complexity Data flow analysis Formal logic Program translators Verification Formal methods |
description |
SAT-based bounded verification of programs consists of the translation of the code and its annotations into a propositional formula. The formula is then analyzed for specification violations using a SAT-solver. This technique is capable of proving the absence of errors up to a given scope. SAT is a well-known NP-complete problem, whose complexity depends on the number of propositional variables occurring in the formula. Thus, reducing the number of variables in the logical representation may have a great impact on the overall analysis. We propose a dataflow analysis which infers the set of possible values that can be assigned to each local and instance variable. Unnecessary variables at the SAT level can then be safely removed by relying on the inferred values. We implemented this approach in TACO, a SAT-based verification tool. We present an extensive empirical evaluation and discuss the benefits of the proposed approach. © 2011 Springer-Verlag. |
author |
Galeotti, Juan Pablo Garbervetsky, Diego Frias, Marcelo |
author_facet |
Galeotti, Juan Pablo Garbervetsky, Diego Frias, Marcelo |
author_sort |
Galeotti, Juan Pablo |
title |
A dataflow analysis to improve SAT-based bounded program verification |
title_short |
A dataflow analysis to improve SAT-based bounded program verification |
title_full |
A dataflow analysis to improve SAT-based bounded program verification |
title_fullStr |
A dataflow analysis to improve SAT-based bounded program verification |
title_full_unstemmed |
A dataflow analysis to improve SAT-based bounded program verification |
title_sort |
dataflow analysis to improve sat-based bounded program verification |
publishDate |
2011 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03029743_v7041LNCS_n_p138_CuervoParrino http://hdl.handle.net/20.500.12110/paper_03029743_v7041LNCS_n_p138_CuervoParrino |
work_keys_str_mv |
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_version_ |
1768543658147053568 |