[fons]

The new followup post [1] explains that Pareon indeed partly relies on good coverage:

"Regarding the way Pareon performs its analysis: it relies on instrumentation and therefore coverage is key. The parts of the code of interest should be sufficiently covered. Partly it is the user's responsibility to make sure the right data sets are used. However Pareon helps the user by showing the achieved coverage of the parts you want to parallelize."

[1] http://www.vectorfabrics.com/blog/item/accelerating_the_idte...