Build (method = -2) #dp: 66 Step-3' Graph: 18 vertices and 46 arcs (0.00s) Step-4' Graph: 4 vertices and 18 arcs (0.00s) #V4/#V3 = 0.22 #A4/#A3 = 0.39 Ready! (0.00s) Optimize a model with 12 rows, 19 columns and 54 nonzeros Presolve removed 12 rows and 19 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.400000000000e+02, best bound 1.400000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 140 Solution: 30 x [1, 2] 6 x [2, 3] 1 x [7] 3 x [2, 7] 32 x [2, 6] 16 x [2, 4] 10 x [2, 8] 23 x [2, 5] 19 x [2, 2]