Coverage-guided Aging Counter
ConceptCoverage-guided Aging Counter is the execution-frequency information used in Coverage-guided Aging to track how often coverage points have been exercised. In the cited DATE 2022 case study, coverage points were defined as the cross product of instruction groups, and the resulting coverage-aging approach was reported to help close coverage gaps and produce a more regular coverage distribution.
WIKI
Overview
Coverage-guided Aging Counter refers to the count-like execution-frequency information used by Coverage-guided Aging to record how often defined coverage points have been exercised during test generation.
Evidence-backed characterization
The available evidence states that Coverage-guided Aging uses information about how often the coverage points were executed by instruction generators. It also states that these coverage points are defined as the cross product of instruction groups.
Role in Coverage-guided Aging
Within the cited cross-level processor verification study, Coverage-guided Aging is presented as an effective extension that helps close coverage gaps and achieves a more regular coverage distribution than random generation alone. This indicates that the counter information is used to steer or assess the aging-based coverage process.
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