Build (method = -2) #dp: 361 Step-3' Graph: 76 vertices and 221 arcs (0.00s) Step-4' Graph: 14 vertices and 97 arcs (0.00s) #V4/#V3 = 0.18 #A4/#A3 = 0.44 Ready! (0.00s) Optimize a model with 74 rows, 98 columns and 270 nonzeros Presolve removed 62 rows and 72 columns Presolve time: 0.00s Presolved: 12 rows, 26 columns, 63 nonzeros Variable types: 0 continuous, 26 integer (0 binary) Found heuristic solution: objective 2869.0000000 Found heuristic solution: objective 2855.0000000 Found heuristic solution: objective 2849.0000000 Optimize a model with 12 rows, 26 columns and 63 nonzeros Presolved: 12 rows, 26 columns, 63 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.300e+01 Factor NZ : 7.800e+01 Factor Ops : 6.500e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.15611545e+03 2.34569236e+03 1.74e+02 2.22e-16 3.27e+01 0s 1 2.90946397e+03 2.67051362e+03 8.87e+00 2.78e-16 4.83e+00 0s 2 2.85403921e+03 2.82758739e+03 3.79e-01 2.66e-15 4.79e-01 0s 3 2.84972311e+03 2.84689369e+03 4.01e-14 2.22e-16 5.05e-02 0s 4 2.84900084e+03 2.84899547e+03 2.91e-14 1.11e-16 9.59e-05 0s Barrier performed 4 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds 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 2.849000000000e+03, best bound 2.849000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 2849 Solution: 93 x [10] 20 x [4] 40 x [55] 5 x [34] 100 x [25] 21 x [49] 13 x [19] 51 x [22] 71 x [28] 23 x [31] 7 x [1] 15 x [1, 11, 12] 2 x [1, 11] 85 x [39] 78 x [40] 33 x [16] 82 x [18] 41 x [54] 68 x [60] 1 x [13] 93 x [48] 77 x [33] 90 x [7] 40 x [15] 8 x [37, 52] 25 x [46] 13 x [46, 52] 84 x [9] 18 x [8] 21 x [58] 6 x [43, 58] 39 x [11, 43, 44] 21 x [45] 23 x [14] 6 x [21] 78 x [24] 97 x [36] 18 x [27] 100 x [47] 57 x [57] 68 x [59] 29 x [41] 50 x [51] 84 x [53] 27 x [50] 86 x [23] 9 x [26] 59 x [3] 40 x [29] 55 x [6] 90 x [2] 57 x [20] 32 x [32] 56 x [38] 27 x [17] 99 x [35] 99 x [5] 80 x [56] 36 x [11, 42] 3 x [11, 30, 44]