The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Dec. 16, 2010
Andreas Kuehlmann, Kensington, CA (US);
Kenneth L. Mcmillan, Berkeley, CA (US);
Shmuel Sagiv, Tel Aviv, IL;
Andreas Kuehlmann, Kensington, CA (US);
Kenneth L. McMillan, Berkeley, CA (US);
Shmuel Sagiv, Tel Aviv, IL;
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
In one embodiment of the invention, a design verifier is disclosed including a model extractor and a bounded model checker having an arithmetic satisfiability solver. The arithmetic satisfiability solver searches for a solution in the form of a numeric assignment of numbers to variables that satisfies each and every one of the one or more numeric formulas. Conflict in the search, results in the deduction of one or more new numeric formulas that serve to guide the search toward a solution. If the search finds a numeric assignment that satisfies each and every one of the one or more numeric formulas, it indicates that a functional property of the system is violated.