/usr/share/acl2-7.1/books/demos/ is in acl2-books 7.1-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/acl2-7.1/books/demos/constants-that-require-modifying-state.o
/usr/share/acl2-7.1/books/demos/gl-and-use-example.o
/usr/share/acl2-7.1/books/demos/knuth-bendix-problem-1.o
/usr/share/acl2-7.1/books/demos/list-theory.o
/usr/share/acl2-7.1/books/demos/modeling/
/usr/share/acl2-7.1/books/demos/modeling/memories.o
/usr/share/acl2-7.1/books/demos/modeling/nested-stobj-toy-isa.o
/usr/share/acl2-7.1/books/demos/modeling/network-state-basic.o
/usr/share/acl2-7.1/books/demos/modeling/network-state.o
/usr/share/acl2-7.1/books/demos/modeling/nondeterminism.o
/usr/share/acl2-7.1/books/demos/parallel/
/usr/share/acl2-7.1/books/demos/parallel/fibonacci.o
/usr/share/acl2-7.1/books/demos/parallel/matrix-multiplication-parallel.o
/usr/share/acl2-7.1/books/demos/parallel/matrix-multiplication-serial.o
/usr/share/acl2-7.1/books/demos/parallel/matrix-multiplication-setup.o
/usr/share/acl2-7.1/books/demos/patterned-congruences.o
/usr/share/acl2-7.1/books/demos/proofs/
/usr/share/acl2-7.1/books/demos/proofs/linear.o
/usr/share/acl2-7.1/books/demos/proofs/type-prescription.o
/usr/share/acl2-7.1/books/demos/split-types-examples.o
/usr/share/acl2-7.1/books/demos/tutorial-problems/
/usr/share/acl2-7.1/books/demos/tutorial-problems/equivalence-of-two-functions/
/usr/share/acl2-7.1/books/demos/tutorial-problems/equivalence-of-two-functions/kaufmann.o
/usr/share/acl2-7.1/books/demos/tutorial-problems/equivalence-of-two-functions/moore.o
/usr/share/acl2-7.1/books/demos/tutorial-problems/introductory-challenge-problem-4-athena.o
/usr/share/acl2-7.1/books/demos/tutorial-problems/introductory-challenge-problem-4.o