Hmm. He has X amount of time left. Provided that air loss continues at a constant rate and that no loose objects (or people) plug the hole and restrict the air loss. The AI made a prediction based on the information it had. The prediction was not mathematical certanity but a guess based on information the AI had at the time (eg: what if one occupant died earlier than expected leaving more air for the others?)
I mean if during a drive to Vancouver (ew!), my AI predicted my fuel would run out in four minutes but it lasted eight, I'd think it was off by fifty percent due to reasons outside its control (temperature, expansion of the pipes, bad sensors, squirrels in the gas tank). The ratio is too low to be a miracle. When I reach my destination, I'll hardly emerge a born-again Christian.
if you want a miracle-in-doubt I recommend you give it a really long time. Like four hours. They get rescued. The leak is still there. The ship's oxygen tanks are empty as the AI said. It's clear the AI's calculation of death -- no matter how affected by outside factors -- is valid
