/usr/lib/libguilereadline-v-17.so is in guile-1.8-libs 1.8.8+1-10ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libguilereadline-v-17.so.17.0.3
/usr/lib/libguilereadline-v-17.so.17.0.3