Update packages and install build dependencies
sudo pacman -Sy archlinux-keyring && sudo pacman -Syyu
sudo pacman -S gcc bison flex make patch perl-libwww fakeroot
Create folder for package and copy PKGBUILD file there.
Build package by running makepkg
in that folder. That will compile CBMC and
run all tests. To install package run
sudo pacman -U cbmc-5.7-1-x86_64.pkg.tar.xz`