Access to Mentor's Arria10 Virtual Platform

Pages on the Intel site and on Rocketboards too refer to the Mentor Arria10 Virtual Platform, often with a link to Mentor’s site. That Mentor link now redirects to a Siemens page.
The filename is given as Arria10_vp.tgz. Web searches and give no results for this filename.

Any clues for finding this file would be very much appreciated.