Question

A group of bins can be excluded from coverage by specifying a select expression using ignore_bins. For example:

covergroup yy;
    cross a, b
    {
        ignore_bins foo = binsof(a) intersect { 5, [1:3] };
    }
endgroup

All cross products that satisfy the select expression are excluded from coverage. Ignored cross products are excluded even if they are included in other cross-coverage bins of the enclosing cross.