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[vManager] Questions about Exclude options for Code coverage improvement

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Hi everyone,

I am new to vManager. While analyzing code coverage for my project design, I see that there are several options every time I want to do exclusion. I usually use Exclude (Ctrl+E). I have also tried others, but still be unable to fully understand their usage. Please kindly help to clarify the following questions.

1. I once tried Exclude To Covered (Ctrl+1), and it helped to exclude all uncovered cases so that I did not need to do one by one just like in the case of Exclude (Ctrl+E). Except for that, what is the difference between Exclude (Ctrl+E) and Exclude To Covered (Ctrl+1)? 

2. I also tried Exclude To Uncovered (Ctrl+0), and all the covered cases turned into uncovered ones. The question is why does one need to make his/her code coverage lowered while the main purpose is to improve it? In which case could I utilize this option?

3. I also tried Exclude UNR (Ctrl+U), and nothing happened. I only know that this is used to exclude the unreachable code. So I tried on system-excluding cases and user-excluding cases, and both resulted in nothing. It seemed that I did something wrong. Then, how can I use this option? Could you please elaborate a simple example in which this option is utilized?

Thank you so much for your help.


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