Question regarding Path Energy Costs

[Nano Byte]

Hello,

I stumbled upon the method

SetPathEnergyCostOfVehicle()

which says

"Cost(i) = Cumul_Force(j) * Transit_Distance(i, j)"

However, digging into the implementation I found in graph_constraints.cc the line actually impelemting (?) the cost like this:

const int64_t distance_min = specification_.distances[current]->Min();
const int64_t distance_max = specification_.distances[current]->Max();

...

Where I do not See the transit var, but the Min and Max Cumul distance (aka Transit + Slack).

So my Question to all with deep understanding of this Method:

Is

"Cost(i) = Cumul_Force(j) * Transit_Distance(i, j)"
OR

"Cost(i) = Cumul_Force(j) * (Transit_Distance(i, j) + Slack_Distance(i, j)"

?

Thanks and kind Regards
N.