/usr/share/doc/ is in libaac-tactics-coq 8.6.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libaac-tactics-coq/
/usr/share/doc/libaac-tactics-coq/README
/usr/share/doc/libaac-tactics-coq/copyright
/usr/share/doc/libaac-tactics-coq/theories/
/usr/share/doc/libaac-tactics-coq/theories/AAC_tactics.AAC.html
/usr/share/doc/libaac-tactics-coq/theories/AAC_tactics.Caveats.html
/usr/share/doc/libaac-tactics-coq/theories/AAC_tactics.Instances.html
/usr/share/doc/libaac-tactics-coq/theories/AAC_tactics.Tutorial.html
/usr/share/doc/libaac-tactics-coq/theories/coqdoc.css
/usr/share/doc/libaac-tactics-coq/theories/index.html
/usr/share/doc/libaac-tactics-coq/theories/toc.html
/usr/share/doc-base/aac-tactics-theories
/usr/share/doc/libaac-tactics-coq/changelog.Debian.gz