Not to be facetious, but: A program which doesn't have as much money as they're offering people.
The founders of Bootup Labs put some of their own money in, but they're raising money (or trying, at least) from VCs for the rest. They're paying themselves [EDIT: or not -- see reply from dannyrobinson below] from the $50k/startup management fee, not just from expected future profits.
Are there any other startup accelerators which do things this way? I'm not aware of any.