/usr/share/acl2-4.3/books/models/jvm/ is in acl2-books-source 4.3-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/acl2-4.3/books/models/jvm/m1/
/usr/share/acl2-4.3/books/models/jvm/m1/m1-story.acl2
/usr/share/acl2-4.3/books/models/jvm/m1/m1-story.lisp
/usr/share/acl2-4.3/books/models/jvm/m1/problem-set-1-answers.acl2
/usr/share/acl2-4.3/books/models/jvm/m1/problem-set-1-answers.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/
/usr/share/acl2-4.3/books/models/jvm/m5/apprentice-state.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/apprentice-state.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/apprentice.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/apprentice.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/demo.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/demo.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/idemo.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/idemo.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/infinite-fair-schedule.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/isort.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/isort.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/jvm-fact-setup.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/jvm-fact-setup.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/m5.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/m5.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/partial.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/partial.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/perm.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/script.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/universal-never-returns.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/universal-never-returns.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/universal.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/universal.lisp
/usr/share/acl2-4.3/books/models/jvm/m5/utilities.acl2
/usr/share/acl2-4.3/books/models/jvm/m5/utilities.lisp