TY - GEN
T1 - Incremental verification with mode variable invariants in state machines
AU - Kahsai, Temesghen
AU - Garoche, Pierre Loïc
AU - Tinelli, Cesare
AU - Whalen, Mike
PY - 2012/4/11
Y1 - 2012/4/11
N2 - We describe two complementary techniques to aid the automatic verification of safety properties of synchronous systems by model checking. A first technique allows the automatic generation of certain inductive invariants for mode variables. Such invariants are crucial in the verification of safety properties in systems with complex modal behavior. A second technique allows the simultaneous verification of multiple properties incrementally. Specifically, the outcome of a property - valid or invalid - is communicated to the user as soon as it is known. Moreover, each property proven valid is used immediately as an invariant in the model checking procedure to aid the verification of the remaining properties. We have implemented these techniques as new options in the Kind model checker. Experimental evidence shows that these two techniques combine synergistically to increase Kind's precision as well as its speed.
AB - We describe two complementary techniques to aid the automatic verification of safety properties of synchronous systems by model checking. A first technique allows the automatic generation of certain inductive invariants for mode variables. Such invariants are crucial in the verification of safety properties in systems with complex modal behavior. A second technique allows the simultaneous verification of multiple properties incrementally. Specifically, the outcome of a property - valid or invalid - is communicated to the user as soon as it is known. Moreover, each property proven valid is used immediately as an invariant in the model checking procedure to aid the verification of the remaining properties. We have implemented these techniques as new options in the Kind model checker. Experimental evidence shows that these two techniques combine synergistically to increase Kind's precision as well as its speed.
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U2 - 10.1007/978-3-642-28891-3_35
DO - 10.1007/978-3-642-28891-3_35
M3 - Conference contribution
AN - SCOPUS:84859468878
SN - 9783642288906
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 388
EP - 402
BT - NASA Formal Methods - 4th International Symposium, NFM 2012, Proceedings
T2 - 4th NASA Formal Methods Symposium, NFM 2012
Y2 - 3 April 2012 through 5 April 2012
ER -