If you see my comment, it proposes using large infosys style teams. You don't need graduates per se, just people who have an intuition for logic and math, of which there are plenty. Plus you can prove isolated pieces e.g. TCP/IP stacks instead of end-to-end. It would not be as beneficial as full formal verification but it is still a large step in securing the most vulnerable targets such as IoT, industrial control systems, financial services etc.