Build (method = -2) #dp: 3394 Step-3' Graph: 81 vertices and 1287 arcs (0.01s) Step-4' Graph: 77 vertices and 1279 arcs (0.01s) #V4/#V3 = 0.95 #A4/#A3 = 0.99 Ready! (0.01s) Optimize a model with 152 rows, 1280 columns and 3691 nonzeros Presolve removed 43 rows and 47 columns Presolve time: 0.03s Presolved: 109 rows, 1233 columns, 3549 nonzeros Variable types: 0 continuous, 1233 integer (325 binary) Found heuristic solution: objective 171.0000000 Found heuristic solution: objective 153.0000000 Optimize a model with 109 rows, 1233 columns and 3549 nonzeros Presolved: 109 rows, 1233 columns, 3549 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.938e+03 Factor NZ : 3.866e+03 Factor Ops : 1.804e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.03380162e+03 -1.20747780e+04 9.99e+03 1.06e-01 3.71e+01 0s 1 6.60162889e+02 -3.96115700e+03 1.40e+03 6.66e-16 5.98e+00 0s 2 2.62835953e+02 -1.21191295e+03 1.48e+02 3.11e-15 9.40e-01 0s 3 1.91396460e+02 -2.20680125e+02 1.43e+01 8.88e-16 1.86e-01 0s 4 1.57790557e+02 -6.01682531e+01 2.41e+00 4.44e-16 9.00e-02 0s 5 1.32690708e+02 3.63291499e+01 1.15e+00 2.22e-16 3.95e-02 0s 6 1.24023968e+02 5.64912573e+01 5.99e-01 3.33e-16 2.75e-02 0s 7 1.16261116e+02 7.22078102e+01 2.79e-01 1.67e-16 1.78e-02 0s 8 1.07818943e+02 9.83396484e+01 4.88e-02 2.35e-16 3.83e-03 0s 9 1.06110574e+02 1.04266556e+02 1.21e-02 2.22e-16 7.46e-04 0s 10 1.05518174e+02 1.05482389e+02 2.88e-04 3.33e-16 1.45e-05 0s 11 1.05500019e+02 1.05499982e+02 2.68e-13 2.53e-16 1.48e-08 0s 12 1.05500000e+02 1.05500000e+02 1.13e-12 2.22e-16 1.48e-11 0s Barrier solved model in 12 iterations and 0.01 seconds Optimal objective 1.05500000e+02 Root relaxation: objective 1.055000e+02, 205 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 105.50000 0 2 153.00000 105.50000 31.0% - 0s H 0 0 106.0000000 105.50000 0.47% - 0s Explored 0 nodes (285 simplex iterations) in 0.06 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.060000000000e+02, best bound 1.060000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.06 seconds Total run time: 0.08 seconds Objective: 106 Solution: 3 x [75] 2 x [1, 75] 2 x [2, 74] 3 x [73] 3 x [3, 72] 2 x [4, 71] 4 x [70] 3 x [6, 69] 1 x [5, 69] 1 x [68] 4 x [7, 68] 1 x [2, 68] 3 x [9, 67] 6 x [10, 66] 1 x [11, 65] 1 x [12, 64] 1 x [13, 63] 1 x [12, 62] 3 x [8, 62] 1 x [11, 61] 1 x [16, 60] 4 x [15, 60] 2 x [14, 60] 1 x [17, 59] 5 x [18, 58] 1 x [17, 57] 1 x [20, 56] 3 x [18, 56] 1 x [19, 55] 2 x [22, 54] 2 x [23, 53] 2 x [23, 52] 1 x [21, 52] 1 x [25, 51] 3 x [24, 51] 2 x [26, 50] 1 x [25, 50] 2 x [27, 49] 2 x [28, 48] 1 x [29, 47] 2 x [30, 46] 1 x [31, 45] 1 x [31, 44] 4 x [32, 43] 1 x [33, 42] 1 x [32, 41] 1 x [35, 40] 2 x [31, 40] 2 x [33, 39] 1 x [38] 1 x [33, 37] 2 x [36, 36] 2 x [28, 35] 1 x [28, 34]