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.

Scope and limitations

The provided evidence supports the existence and purpose of execution-frequency tracking for coverage points in Coverage-guided Aging, but it does not describe the exact counter data structure, update rule, thresholding scheme, or API.