Build (method = -2) #dp: 439 Step-3' Graph: 24 vertices and 93 arcs (0.00s) Step-4' Graph: 11 vertices and 67 arcs (0.00s) #V4/#V3 = 0.46 #A4/#A3 = 0.72 Ready! (0.00s) Optimize a model with 51 rows, 68 columns and 187 nonzeros Presolve removed 51 rows and 68 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 1.731000000000e+03, best bound 1.731000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 1731 Solution: 78 x [36] 77 x [23] 73 x [17] 21 x [9, 14] 93 x [13] 85 x [39] 56 x [7] 56 x [20] 68 x [25] 4 x [21, 32] 2 x [9, 32] 73 x [30] 30 x [16, 35] 11 x [21, 35] 99 x [37] 67 x [15, 26] 44 x [24, 28] 1 x [9, 24] 10 x [15, 33] 8 x [15, 31] 87 x [27] 80 x [19] 67 x [5, 29] 21 x [4, 29] 69 x [38] 69 x [11] 14 x [1, 40] 8 x [1, 15] 51 x [3] 1 x [3, 29] 3 x [3, 15] 92 x [18] 68 x [2] 11 x [2, 10] 41 x [8, 34] 3 x [6, 8] 16 x [8, 22] 1 x [8, 10] 65 x [6, 12] 8 x [6, 22]