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:
Sep. 17, 2013
Filed:
Apr. 16, 2010
Systems and methods for model checking the precision of programs employing floating-point operations
Franjo Ivancic, Princeton, NJ (US);
Malay K. Ganai, Plainsboro, NJ (US);
Sriram Sankaranarayanan, Boulder, CO (US);
Aarti Gupta, Princeton, NJ (US);
Franjo Ivancic, Princeton, NJ (US);
Malay K. Ganai, Plainsboro, NJ (US);
Sriram Sankaranarayanan, Boulder, CO (US);
Aarti Gupta, Princeton, NJ (US);
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
Methods and systems for verifying the precision of a program that utilizes floating point operations are disclosed. Interval and affine arithmetic can be employed to build a model of the program including floating point operations and variables that are expressed as reals and integers, thereby permitting accurate determination of precision loss using a model checker. Abstract interpretation can be also employed to simplify the model. In addition, counterexample-guided abstraction refinement can be used to refine the values of parametric error constants introduced in the model.