143732.fig.002
Figure 2: Example of node that is feasible connected w.r.t. its incoming arcs, but not w.r.t. Inequalities (3.22). Edges 𝑒 1 = 𝑒 2 = 1 / 2 in the current LP-solutions, but as both edges have assigned the same label 𝑙 1 = 1 2 the sum over the set of all labels assigned to incident edges of the considered node is also 1/2. Such situations are forbidden by Inequalities (3.22).