/usr/ is in libslepc3.1-dbg 3.1-p6.dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/libslepc3.1-dbg/
/usr/share/
/usr/share/doc/libslepc3.1-dbg/copyright
/usr/share/doc/libslepc3.1-dbg/changelog.Debian.gz
/usr/lib/
/usr/lib/slepcdir/
/usr/lib/slepcdir/3.1/
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/conf/
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/conf/make.log
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/conf/configure.log
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/conf/slepcrules
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/conf/slepcvariables
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/include/
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/lib/
/usr/lib/slepcdir/3.1/linux-gnu-c-debug/lib/libslepc.a
/usr/lib/slepcdir/3.1/lib/
/usr/lib/slepcdir/3.1/lib/libg
/usr/lib/slepcdir/3.1/lib/libg_c++