/usr/share/acl2-8.0dfsg/books/tools/soft.lisp is in acl2-books-source 8.0dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | (in-package "ACL2")
;; The following line marks this book as a relocation stub:
;; cert_param: (reloc_stub)
(include-book "kestrel/soft/top" :dir :system)
|