Too bad EU is playing that card since it's obviously a lose/lose situation.
"Switzerland's contribution to the total budget of Horizon 2020 of about EUR 81.6 billion sums up to around CHF 4.4 billion, over a seven-year period. The corresponding budget appropriation was approved by the Federal Assembly on 10 September 2013."
http://www.sbfi.admin.ch/themen/01370/01683/index.html?lang=...