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.:

US 7640536 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2009

Filed:

Sep. 27, 2005
Applicants:

Michael W. Whalen, Edina, MN (US);

Steven P. Miller, Iowa City, IA (US);

Inventors:

Michael W. Whalen, Edina, MN (US);

Steven P. Miller, Iowa City, IA (US);

Assignee:

Rockwell Collins, Inc., Cedar Rapids, IA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/44 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of verifying properties of a source program includes creating a directed multigraph from the source program. The directed multigraph is then minimized by identifying removable vertices in the multigraph. Based on the minimization of the directed multigraph, the source program is transformed by inlining variables in the source program to produce a transformed program. The transformed program is then model checked using a model checking tool in order to verify properties of the source program.


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