I'm running codelite with "single instance per user" option turned on
The single instance lock file (containing pid) is saved in the user home dir (name: Codelite-username).

I have 1000's of these files in my hourly incremental backups of my home dir :-)

It would be nice if this file was saved under /tmp (eg /tmp/Codelite-username) - just like the indexer socket file