License Issue

I'm not sure who owns espresso.
Original authors are Robert K. Brayton and Richard L. Rudell.
Published at https://ptolemy.berkeley.edu/projects/embedded/pubs/downloads/espresso/index.htm
I think if original tar was downloaded from UCB site, should this be licensed to BSD by default?

Start by reviewing the repository’s current licensing and attribution materials, then verify the provenance of the original tar archive and the Berkeley Espresso publication linked in the issue. Done means establishing the applicable license and recording a clear, supported attribution or licensing decision.

Written by the indexing model from the issue text.