This file is indexed.

/usr/lib/x86_64-linux-gnu/libvtkRenderingVolumeOpenGLTCL-6.0.so.6.0 is in libvtk6 6.0.0-6.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libvtkRenderingVolumeOpenGLTCL-6.0.so.6.0.0