Build (method = -2) #dp: 175 Step-3' Graph: 18 vertices and 58 arcs (0.00s) Step-4' Graph: 8 vertices and 38 arcs (0.00s) #V4/#V3 = 0.44 #A4/#A3 = 0.66 Ready! (0.00s) Optimize a model with 28 rows, 39 columns and 106 nonzeros Presolve removed 28 rows and 39 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 7.300000000000e+02, best bound 7.300000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 730 Solution: 81 x [14] 65 x [3, 16] 16 x [11, 16] 11 x [5] 1 x [5, 16] 35 x [7] 70 x [18] 39 x [6, 19] 24 x [2, 19] 91 x [12] 4 x [17] 68 x [10, 17] 69 x [4, 8] 2 x [4, 15] 19 x [15, 20] 37 x [9, 15] 4 x [1] 1 x [1, 4] 82 x [1, 13] 11 x [1, 2]