Uses Newton's method to correct the given solutions so that the resluting approximation has its estimated relative error bound by Tolerance; the number of iterations is at most maxCorrSteps.
If option Software=>M2engine is specified, then the refinement happens in the M2 engine and it is assumed that the last path tracking procedure took place with the same option and was given the same target system. Any other value of this option would launch an M2-language procedure.