/usr/src/linux-headers-3.13.0-100-generic/kernel/trace is in linux-headers-3.13.0-100-generic 3.13.0-100.147.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/src/linux-headers-3.13.0-100-generic/kernel/../../linux-headers-3.13.0-100/kernel/trace