Build (method = -2) #dp: 263 Step-3' Graph: 34 vertices and 102 arcs (0.00s) Step-4' Graph: 4 vertices and 42 arcs (0.00s) #V4/#V3 = 0.12 #A4/#A3 = 0.41 Ready! (0.00s) Optimize a model with 24 rows, 43 columns and 126 nonzeros Presolve removed 24 rows and 43 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 2.370000000000e+02, best bound 2.370000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 237 Solution: 5 x [2, 6] 4 x [6, 14] 2 x [6, 15] 23 x [6, 17] 1 x [16, 20] 15 x [4, 19] 20 x [9, 10] 2 x [9, 16] 25 x [5, 14] 30 x [12, 16] 25 x [1, 7] 30 x [3, 8] 20 x [11, 15] 34 x [13, 18] 1 x [19]