/usr/lib/ is in syrthes 4.3.0-dfsg1-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/syrthes/
/usr/lib/syrthes/share/
/usr/lib/syrthes/bin/
/usr/lib/syrthes/bin/syrthes.profile
/usr/lib/syrthes/bin/syrthes4_create_case
/usr/lib/syrthes/lib/
/usr/lib/syrthes/lib/libsyrthes_cfd.a
/usr/lib/syrthes/lib/libsyrthes_seq.a
/usr/lib/syrthes/lib/libsyrthes_mpi.a
/usr/lib/syrthes/include/
/usr/lib/syrthes/include/syr_cfd_point_location.h
/usr/lib/syrthes/include/syr_hmt_lib_polyurethane.h
/usr/lib/syrthes/include/syr_hmt_lib_polyurethane.c
/usr/lib/syrthes/include/syr_hmt_lib_air.c
/usr/lib/syrthes/include/syr_cfd_mesh.h
/usr/lib/syrthes/include/syr_bd.h
/usr/lib/syrthes/include/syr_option.h
/usr/lib/syrthes/include/syr_tree.h
/usr/lib/syrthes/include/syr_hmt_lib_pse_normal.c
/usr/lib/syrthes/include/syr_usertype.h
/usr/lib/syrthes/include/syr_hmt_lib_pin.h
/usr/lib/syrthes/include/syr_hmt_lib_acier.h
/usr/lib/syrthes/include/syr_cfd_coupling.h
/usr/lib/syrthes/include/syr_hmt_lib_fibre_bois.h
/usr/lib/syrthes/include/syr_cfd.h
/usr/lib/syrthes/include/syr_hmt_lib_fibre_bois.c
/usr/lib/syrthes/include/syr_hmt_lib_pin.c
/usr/lib/syrthes/include/syr_hmt_lib_air.h
/usr/lib/syrthes/include/syr_hmt_lib_laine_verre.h
/usr/lib/syrthes/include/syr_hmt_lib_mdf.h
/usr/lib/syrthes/include/syr_parall.h
/usr/lib/syrthes/include/syr_hmt_lib_mdf.c
/usr/lib/syrthes/include/syr_const.h
/usr/lib/syrthes/include/syr_hmt_lib_bois_agglo.c
/usr/lib/syrthes/include/syr_proto.h
/usr/lib/syrthes/include/syr_hmt_lib_bois_agglo.h
/usr/lib/syrthes/include/syr_hmt_lib_beton.h
/usr/lib/syrthes/include/syr_hmt_lib_acier.c
/usr/lib/syrthes/include/syr_hmt_bd.h
/usr/lib/syrthes/include/syr_hmt_libmat.h
/usr/lib/syrthes/include/syr_cfd_mesh_priv.h
/usr/lib/syrthes/include/syr_hmt_lib_beton.c
/usr/lib/syrthes/include/Version
/usr/lib/syrthes/include/syr_hmt_lib_laine_verre.c
/usr/lib/syrthes/include/syr_hmt_material.txt
/usr/lib/syrthes/include/syr_hmt_lib_pse_normal.h
/usr/lib/syrthes/include/syr_abs.h
/usr/lib/syrthes/include/syr_hmt_proto.h
/usr/lib/syrthes/include/syr_hmt_libmat.c
/usr/lib/syrthes/share/syrthes