Questa CoverCheck

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Overview

Questa CoverCheck

Flagging of code coverage items that are difficult to reach by formal techniques and haven’t been hit in simulation; thus providing a valuable measure of verification complexity. This guides engineers to change their designs to make them more easily verifiable.


Get in touch with our sales team 1-800-547-3000

Questa CoverCheck automatically traverses your DUT's state spaces and identifies unreachable areas, enables the user to "waive"/exclude items from future analyses, and pipe all results into a Unified Coverage DataBase (UCDB) for inclusion in Questa Verification Management analyses and progress reporting.
Key Features

Exhaustively Identifies Dead Code Areas

No matter how many clever directed test you write, no matter how many different random seeds you try, the coverage score simply flat-lines. In parallel, specifying waivers to deliberately exclude unused IP configurations from the analysis can be a tedious and error prone manual process.

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Code Coverage Closure

Formal Proof That the Code Can be Safely Ignored

<p>Questa CoverCheck is an automatic formal solution for achieving code coverage closure faster. The tool addresses an incontrovertible fact of verification: no matter the combination of techniques used, and even after running an exhaustive battery of tests, some fraction of uncovered code always remains.</p>

Questa CoverCheck Waiver

Target Coverage Holes

Code Coverage’s “Last Mile” Problem

<p>Questa CoverCheck automatically traverses your DUT's state spaces and identifies unreachable areas, enables the user to "waive"/exclude items from future analyses, and pipe all results into a Unified Coverage DataBase (UCDB) for inclusion in Questa Verification Management analyses and progress reporting.</br></br></p>

Questa CoverCheck Witness

Questa Formal Verification Resources

More resources available at the Verification Academy.

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Get in touch with our sales team 1-800-547-3000 or 1-503-685-8000


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