How to get the Synopsys simulation library(eda/sim_lib/synopsys) for vcs simulation?

You can use Quartus to generate the compiled simulation models for VCS and then import them in VCS simulator. Refer to user guide below. https://www.intel.com/content/www/us/en/programmable/documentation/gtt1529956823942.html#mwh1409960618998 Alternatively look for auto-generated simulation script along with the IP simulation files, running the script will re-compile the libraries needed to bring up the IP simulation along with compiling IP files, you can reference the script to create your custom script.. Thanks, Arslan