/usr/share/hol88-2.02.19940316/contrib/UNITY/ is in hol88-contrib-source 2.02.19940316-19.
This file is owned by root:root, with mode 0o755.
..
/usr/share/hol88-2.02.19940316/contrib/UNITY/Makefile
/usr/share/hol88-2.02.19940316/contrib/UNITY/aux_definitions.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/Makefile
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/hol-init.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/l_unity.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/mk_example01.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/mk_example02.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/examples/mk_example03.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/l_unity.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/leadsto_induct0.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_comp_unity.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_ensures.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_gen_induct.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_leadsto.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_state_logic.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_unity_prog.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_unless.ml
/usr/share/hol88-2.02.19940316/contrib/UNITY/mk_until.ml