/usr/share/acl2-8.0dfsg/books/coi/bags/ is in acl2-books-source 8.0dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/acl2-8.0dfsg/books/coi/bags/basic.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/bind-free-rules.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/cert.acl2
/usr/share/acl2-8.0dfsg/books/coi/bags/cons.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/eric-meta.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/extras.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/meta.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/neq.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/pick-a-point.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/portcullis.acl2
/usr/share/acl2-8.0dfsg/books/coi/bags/portcullis.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/top.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/two-level-meta.lisp
/usr/share/acl2-8.0dfsg/books/coi/bags/two-level.lisp