imho, cdns for sure would have totally destroyed anss and ripped it apart into dozens of pieces, selling off some and shutting down ohers - just to get rid of the hated competitor in simulation.
with snps lured into a bidding war they cleverly managed to inflate the price to absolutely absurd levels at 35bln, knowing how long that would keep snps busy.
cdns managed to place a poison pill into the merger remotely... well done...