2016
Accelerating Temporal Verification of Simulink Diagrams Using Satisfiability Modulo Theories
BAUCH, Petr, Vojtěch HAVEL a Jiří BARNATZákladní údaje
Originální název
Accelerating Temporal Verification of Simulink Diagrams Using Satisfiability Modulo Theories
Autoři
BAUCH, Petr (203 Česká republika, domácí), Vojtěch HAVEL (203 Česká republika, domácí) a Jiří BARNAT (203 Česká republika, domácí)
Vydání
Software Quality Journal, Springer, 2016, 0963-9314
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10201 Computer sciences, information science, bioinformatics
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.816
Kód RIV
RIV/00216224:14330/16:00089030
Organizační jednotka
Fakulta informatiky
UT WoS
000369006200004
Klíčová slova anglicky
formal verification; model checking; circuit analysis; satisfiability modulo theories
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 5. 2016 05:57, RNDr. Pavel Šmerk, Ph.D.
Anotace
V originále
Automatic verification of programs and computer systems with input variables represents a significant and well-motivated challenge. The case of Simulink diagrams is especially difficult, because there the inputs are read iteratively and the number of input variables is in theory unbounded. We apply the techniques of explicit model checking to account for the temporal (control) aspects of verification and use set-based representation of data, thus handling both sources of non-determinism present in the verification. Two different representations of sets are evaluated in scalability with respect to the range of input variables. Explicit (enumerating) sets are very fast for small ranges but fail to scale. Symbolic sets, represented as first-order formulas in the bit-vector theory and compared using satisfiability modulo theory solvers, scale well to arbitrary (though still bounded) range of input variables. To leverage the combined strengths of explicit and symbolic representations, we have designed a hybrid representation which we showed to outperform both pure representations. Thus the proposed method allows complete automatic verification without the need to limit the non-determinism of input. Moreover, the principle underlying the hybrid representation entails inferring knowledge about the system under verification, which the developers did not explicitly include in the system, and which can significantly accelerate the verification process.
Návaznosti
MUNI/A/0765/2013, interní kód MU |
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MUNI/A/0855/2013, interní kód MU |
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7H13001, projekt VaV |
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