In a tournament game, call a judge and have him break the infinity. Perhaps even call the game as a win for that player if that's what he's set up to do.
Hmm, I wonder if in a digital version, it's possible to crash the program? Perhaps you score so high in VP tokens the game can't handle it? I've done that in the Ascension app... getting 3K+ honor (aka victory points in tokens), and the game gets sluggish.