Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system – Circuit simulation
Reexamination Certificate
2005-11-22
2010-11-16
Rodriguez, Paul L (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Simulating electronic device or electrical system
Circuit simulation
C703S014000, C716S030000, C716S030000
Reexamination Certificate
active
07835898
ABSTRACT:
A method uses a SAT solver operating to cycle k to find bugs in a model having finite computation paths therein, wherein said bugs are on computation paths of less than length k. Another method includes adding an additional state variable to a model to be checked, where a governing state machine of the additional variable has a “sink” state. The method includes having a translation using the additional variable whenever a state indicates a bad state and performing satisfiability solving with the model and the translation.
REFERENCES:
patent: 6944838 (2005-09-01), McMillan
patent: 7346486 (2008-03-01), Ivancic et al.
patent: 7451375 (2008-11-01), Jain
patent: 7546563 (2009-06-01), Jain et al.
patent: 7711525 (2010-05-01), Ganai et al.
patent: 2005/0262456 (2005-11-01), Prasad
patent: 2006/0282806 (2006-12-01), Cadambi et al.
patent: 2007/0011671 (2007-01-01), Kahlon et al.
patent: 2007/0044084 (2007-02-01), Wang et al.
patent: 2007/0299648 (2007-12-01), Levitt et al.
Katz et al.; Space-efficient bounded model checking; Mar. 7-11, 2005; Proceedings Design, Automation and Test in Europe; vol. 2; pp. 686- 687.
Katz et al.; Bounded Model Checking with QBF; Jun. 2, 2005; Springer Berlin/Heidelberg; Lecture Notes in Computer Science; pp. 408-414.
R. Rugina and M. Rinard, “Symbolic Bounds Analysis Of Pointers, Array Indices, And Accessed Memory Regions” Mar. 2005, ACM Transactions on Programming Languages and Systems, vol. 27, No. 2, pp. 185-235.
Ilan Beer et al., “On-the-Fly Model Checking of RCTL Formulas”, CAV 1998.
Shoham Ben-David et al., “Model Checking at IBM”. Formal Methods in System Design 22(2): 101-108 (2003).
Armin Biere et al., “Symbolic Model Checking without BDDs”. TACAS 1999.
Geist Daniel
Ginzburg Mark
Lustig Yoad
Rabinovitz Ishai
Shacham Ohad
International Business Machines - Corporation
Ochoa Juan
Rodriguez Paul L
LandOfFree
Satisfiability (SAT) based bounded model checkers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Satisfiability (SAT) based bounded model checkers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Satisfiability (SAT) based bounded model checkers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4236298