NDLI: Partial witnesses from preprocessed quantified Boolean formulas

Content Provider	IEEE Xplore Digital Library
Author	Seidl, M. Konighofer, R.
Copyright Year	2014
Description	Author affiliation: Bus. Inf. Group, Tech. Univ. Wien, Vienna, Austria (Seidl, M.) \|\| Inst. for Appl. Inf. Process. & Commun., Graz Univ. of Technol., Graz, Austria (Konighofer, R.)
Abstract	For effectively solving quantified Boolean formulas (QBFs), preprocessors have shown to be of great value. A preprocessor rewrites a formula such that helpful information is made explicit and irrelevant information is removed. For this purpose, techniques, which would be too costly when repeatedly applied during the solving process, are used. Unfortunately, most preprocessing techniques are not model preserving and therefore incompatible with certification frameworks. In consequence, the application of a preprocessor prohibits the extraction of witnesses encoding a solution or a counterexample of a formula. In this paper, we show how to obtain partial witnesses from preprocessed QBFs. Partial witnesses are assignments for the variables of the outermost quantifier block and are extensible to full witnesses, which are usually represented as functions reflecting the dependencies between variables. For many applications, however, partial witnesses are sufficient. We modified the publicly available preprocessor bloqqer for extracting partial witnesses. We empirically compare the effectiveness of the modified and the original version of bloqqer. Further, we apply the new version of bloqqer for solving hardware synthesis problems for which it turns out to be extremely beneficial.
Starting Page	1
Ending Page	6
File Size	626930
Page Count	6
File Format	PDF
ISBN	9783981537024
DOI	10.7873/DATE.2014.162
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-24
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	European Design Automation Association (EDAA)
Subject Keyword	Data preprocessing Benchmark testing Hardware Electronic mail Encoding Cognition Standards
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in