Depends on CBMC http://www.cprover.org/cbmc/. Generates a driver to prove the Atom and SBV backends generate equivalent code. Copilot is a stream (i.e., infinite lists) domain-specific language (DSL) in Haskell that compiles into embedded C. Copilot contains an interpreter, multiple back-end compilers, and other verification tools. A tutorial, bug reports, and todos are available at https://github.com/leepike/copilot-discussion. Examples are available at https://github.com/leepike/Copilot/tree/master/Examples.