To install btor2tools, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install btor2tools
To see what files were installed by btor2tools, run:
port contents btor2tools
To later upgrade btor2tools, run:
sudo port selfupdate && sudo port upgrade btor2tools
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.