@kmicu

Not all CAD tool vendors publish part or all of their licenses, hence the list below is not exhaustive:
https://www.synopsys.com/verification/prototyping/haps/synopsys-license-agreement.html (section 2.2 comma 3)
http://s3.mentor.com/company/enduser-english.pdf (section 4.1)

Those using such tools should refer to the text of their licenses directly.