You're mining bitcoin with a VPS? Meaning you're CPU mining?

Stop.

CPUs are of no use on the bitcoin network. gPU's blew them out if the water, and their performance was measurable is megahashes per second. Now we have aside (and we've had them for a while) which operate at giga and terrahashes per second.

In other words you can mine for ever, or at least until he suns runs out of fuel, and probably not get a single reward.

I really don't understand the concept of "I'm going to run an absurdly underpowered miner, justto see how it works". How it works is your computer runs, and and occasionally btc appear in your wallet. There's no interaction, nothing for you to do. And if you're using CPUs or gPU's to do so with bitcoin, you won't ever actually see any coins hit your wallet.