Are you trying to load a different library, or shutdown, or hibernate, or something else like that after 15 minutes?
The log isn't doing much, then it has shutdown-like commands after 15 minutes:
0953813: 472: General: CMCToolsCore::StopTools: Start
0953813: 472: General: CMCToolsCore::StopTools: Stopping tools
0953813: 472: General: CMCToolsCore::StopTools: Stopping loader thread
We don't log why this is happening, but I think it's only shutdown and library switching that call this code.