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IEICE TRANSACTIONS on Information

A Conservative Framework for Safety-Failure Checking

Frederic BEAL, Tomohiro YONEDA, Chris J. MYERS

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Summary :

We present a new framework for checking safety failures. The approach is based on the conservative inference of the internal states of a system by the observation of the interaction with its environment. It is based on two similar mechanisms : forward implication, which performs the analysis of the consequences of an input applied to the system, and backward implication, that performs the same task for an output transition. While being a very simple approach, it is general and we believe it can yield efficient algorithms in different safety-failure checking problems. As a case study, we have applied this framework to an existing problem, the hazard checking in (speed-independent) asynchronous circuits. Our new methodology yields an efficient algorithm that performs better or as well as all existing algorithms, while being more general than the fastest one.

Publication
IEICE TRANSACTIONS on Information Vol.E91-D No.3 pp.642-654
Publication Date
2008/03/01
Publicized
Online ISSN
1745-1361
DOI
10.1093/ietisy/e91-d.3.642
Type of Manuscript
Special Section PAPER (Special Section on Test and Verification of VLSIs)
Category
Verification and Timing Analysis

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