Build (method = -2) #dp: 711 Step-3' Graph: 40 vertices and 156 arcs (0.00s) Step-4' Graph: 20 vertices and 116 arcs (0.00s) #V4/#V3 = 0.50 #A4/#A3 = 0.74 Ready! (0.00s) Optimize a model with 84 rows, 117 columns and 316 nonzeros Presolve removed 51 rows and 51 columns Presolve time: 0.00s Presolved: 33 rows, 66 columns, 164 nonzeros Variable types: 0 continuous, 66 integer (3 binary) Found heuristic solution: objective 192.0000000 Found heuristic solution: objective 182.0000000 Found heuristic solution: objective 148.0000000 Optimize a model with 33 rows, 66 columns and 164 nonzeros Presolved: 33 rows, 66 columns, 164 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.300e+01 Factor NZ : 5.020e+02 Factor Ops : 1.043e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.48310556e+03 -1.23199623e+03 3.78e+02 2.22e-16 5.57e+01 0s 1 4.13751715e+02 -3.32041988e+02 4.17e+01 7.77e-16 7.90e+00 0s 2 1.84749104e+02 7.84531135e+01 2.13e-14 2.33e-15 7.23e-01 0s 3 1.61427520e+02 1.27528224e+02 5.13e-14 4.44e-16 2.31e-01 0s 4 1.48966660e+02 1.44711025e+02 1.69e-14 2.22e-16 2.89e-02 0s 5 1.48007908e+02 1.47968938e+02 4.88e-14 4.44e-16 2.65e-04 0s Barrier performed 5 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 1.480000000000e+02, best bound 1.480000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 148 Solution: 1 x [64] 2 x [63] 6 x [62] 3 x [61] 1 x [60] 1 x [59] 1 x [58] 4 x [57] 5 x [56] 3 x [55] 1 x [54] 3 x [53] 3 x [52] 3 x [51] 2 x [50] 4 x [49] 4 x [48] 4 x [47] 2 x [46] 4 x [45] 3 x [44] 2 x [43] 1 x [42] 1 x [41] 5 x [40] 4 x [39] 3 x [1, 38] 3 x [2, 37] 1 x [36] 4 x [3, 36] 2 x [2, 36] 1 x [1, 36] 2 x [35] 1 x [4, 35] 1 x [6, 34] 1 x [5, 33] 6 x [7, 32] 1 x [5, 32] 1 x [31] 2 x [8, 31] 1 x [9, 30] 1 x [29] 2 x [10, 29] 3 x [9, 29] 3 x [28] 1 x [11, 28] 1 x [27] 2 x [12, 27] 2 x [13, 26] 1 x [25] 2 x [14, 25] 1 x [13, 25] 4 x [15, 24] 3 x [23] 3 x [16, 23] 5 x [22] 2 x [21] 2 x [17, 21] 2 x [20] 4 x [18, 20] 1 x [19]