  As software becomes more complex and assumes an even greater role in our
lives, formal verification is set to become the gold standard in securing
software systems into the future, since it can guarantee the absence of errors
and entire classes of attack. Recent advances in formal verification are being
used to secure everything from unmanned drones to the internet.
  At the same time, the usable security research community has made huge
progress in improving the usability of security products and end-users
comprehension of security issues. However, there have been no human-centered
studies focused on the impact of formal verification on the use and adoption of
formally verified software products. We propose a research agenda to fill this
gap and to contribute with the first collection of studies on people's mental
models on formal verification and associated security and privacy guarantees
and threats. The proposed research has the potential to increase the adoption
of more secure products and it can be directly used by the security and formal
methods communities to create more effective and secure software tools.
