1) We need the scripts/ directory inside the container to patch MiniSat.
2) Use -a with `docker ps` to also list containers that aren't running, and
don't expect the container name at the beginning of the line.
To create docker file, run "make" in integration/xen. The Docker file will
build CBMC, download Xen upstream version, and one-line-scan, and then attempt
to build Xen using goto-cc.