BLT said:These are few things that can make your application being processed forever :
Did you have 1,095 days when you applied?
How did you get your PR? Under refugee or business or Canadian experience or skilled worker? (Refugee who returned to their home country, will have big problem when applying for citizenship, because basically they should be revoked the PR status when they returned. Same thing for getting PR under business, but started to claim social welfare when arrived).
Have you had any problem with police, being charged or being convicted?
Have you ever withdrawn your application before when issued RQ?
Are you applying under a lawyer that is currently being investigated by CIC?
Did you have your original passport when you applied? (Or you lost it and cannot provide photocopy of every page)?
The first one is applicable. I was short of approx. 50 days. I am not sure your assumption is correct as mistakes can happen and this does not mean Forever.