/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/ is in slepc3.6.1-doc 3.6.1.dfsg1-2build2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/index.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/makefile.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/index.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/makefile.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepc.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepc.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcbv.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcbv.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcbvdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcds.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcds.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcdsdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepceps.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepceps.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcepsdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcfn.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcfn.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcfndef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcmfn.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcmfn.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcmfndef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcnep.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcnep.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcnepdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcpep.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcpep.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcpepdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcrg.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcrg.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcrgdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcst.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcst.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcstdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcsvd.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcsvd.h90.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcsvddef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcsys.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/finclude/slepcsysdef.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/bvimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/dsimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/epsimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/fnimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/index.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/makefile.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/mfnimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/nepimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/pepimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/rgimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/slepcimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/stimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepc/private/svdimpl.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcblaslapack.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcbv.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcds.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepceps.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcfn.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcmath.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcmfn.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcnep.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcpep.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcrg.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcrgtypes.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcst.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcsvd.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcsys.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcvec.h.html
/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcversion.h.html