In short, the idea is: profile a program running on a specific input; mutate the unexecuted code with respect to that input; compile and execute the mutated program and expect the output to be identical given the input.
"Static analysis is used to construct alternative versions of the program, that give identical outputs for a given subset of inputs I. The alternative programs are compiled and executed, and we test whether they do actually give the same outputs as the original program, on the input data I. By restricting to a subset I of inputs, a greater variety of alternatives can be produced, than if the alternatives had to be identical to the original program for all inputs."
That's not indicative of much though, as the actual timelines for writing papers can be driven by conference deadlines more than the works themselves (when talking about granularity of six months to a year).
Do you have a specific use for it? If so, let me know about it, as I might be able to try lobbying for packaging and releasing the code or work something out.