It's possible to get a VM + SQL license, you need to write an email to supportatcloubderrylabdotcom and we'll forward your request to licensing dept.

I get this answer from support ticket and no get forwaring to license dept:

"then you need a separate license to run on the vm

We have a separate product designed to back up SQL Server databases. CloudBerry Backup for SQL Server comes with all the features of CloudBerry Backup Server Edition plus native SQL Server support.
http://www.cloudberrylab.com/sql-backup-amazon-s3-azure.aspx
you can download 15 day trial and evaluate it. "

Looks like your SQL instance is installed on a VM and not host, so in your case you indeed need 2 licenses for your setup, since currently our software is designed to back up local SQL servers.

Thank you Matt, now is clear.