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:
Oct. 06, 2015
Filed:
Jun. 28, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Guodong Li, San Jose, CA (US);
Indradeep Ghosh, Cupertino, CA (US);
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A method of testing software may include generating a symbolic value for a return value of a software function of a software program during mixed symbolic and abstraction execution ('mixed execution') of the software program. Additionally, the mixed execution may maintain symbolic values, abstract values, and constraints of one or more variables of the software function. The method may also include deriving, during the mixed execution, an abstraction for the symbolic value. The abstraction may constrain the symbolic value and may be derived based on the return value of the paths that satisfy the abstraction. Further, the method may include exploring, during the mixed execution, the one or more paths of the software function that correspond to the return value based on the symbolic value, as constrained by the abstraction, such that a number of the one or more paths explored during the symbolic execution is constrained by the abstraction.