Build (method = -2) #dp: 161 Step-3' Graph: 38 vertices and 107 arcs (0.00s) Step-4' Graph: 14 vertices and 59 arcs (0.00s) #V4/#V3 = 0.37 #A4/#A3 = 0.55 Ready! (0.00s) Optimize a model with 34 rows, 60 columns and 156 nonzeros Presolve removed 34 rows and 60 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 1.210000000000e+03, best bound 1.210000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 1210 Solution: 146 x [1] 18 x [1, 20] 41 x [2] 121 x [3] 4 x [4] 19 x [4, 18] 80 x [4, 19] 26 x [5, 16] 116 x [6, 17] 14 x [7, 16] 119 x [8, 16] 4 x [9] 2 x [9, 16] 10 x [10, 16] 61 x [10, 17] 80 x [11] 26 x [11, 14] 55 x [11, 15] 24 x [12] 104 x [12, 15] 140 x [13, 14]