/usr/lib/x86_64-linux-gnu/libalglib.so.3.8

This file is indexed.

/usr/lib/x86_64-linux-gnu/libalglib.so.3.8 is in libalglib3.8 3.8.2-1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libalglib.so.3.8.0