Build (method = -2) #dp: 3017 Step-3' Graph: 76 vertices and 1143 arcs (0.01s) Step-4' Graph: 73 vertices and 1137 arcs (0.01s) #V4/#V3 = 0.96 #A4/#A3 = 0.99 Ready! (0.01s) Optimize a model with 145 rows, 1138 columns and 3272 nonzeros Presolve removed 49 rows and 87 columns Presolve time: 0.03s Presolved: 96 rows, 1051 columns, 2994 nonzeros Variable types: 0 continuous, 1051 integer (93 binary) Found heuristic solution: objective 172.0000000 Found heuristic solution: objective 160.0000000 Optimize a model with 96 rows, 1051 columns and 2994 nonzeros Presolved: 96 rows, 1051 columns, 2994 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.452e+03 Factor NZ : 2.730e+03 Factor Ops : 1.009e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.36687738e+03 -6.84126093e+03 1.80e+04 1.62e-01 5.05e+01 0s 1 9.13325977e+02 -2.89715407e+03 2.53e+03 7.77e-16 7.88e+00 0s 2 2.53224042e+02 -1.21478467e+03 1.98e+02 2.11e-15 1.09e+00 0s 3 1.81800988e+02 -2.20802022e+02 2.00e+01 2.33e-15 2.12e-01 0s 4 1.45336269e+02 1.72502996e+01 2.85e+00 1.55e-15 6.22e-02 0s 5 1.22730945e+02 6.36879070e+01 1.04e+00 9.99e-16 2.83e-02 0s 6 1.17212127e+02 7.94814108e+01 6.55e-01 8.88e-16 1.80e-02 0s 7 1.12616188e+02 9.35268305e+01 4.25e-01 7.77e-16 9.17e-03 0s 8 1.06689399e+02 1.02469094e+02 1.24e-01 5.27e-16 2.03e-03 0s 9 1.05965999e+02 1.03986249e+02 3.38e-02 8.56e-16 9.37e-04 0s 10 1.05271627e+02 1.04622085e+02 5.24e-03 5.55e-16 3.06e-04 0s 11 1.05054676e+02 1.04821395e+02 1.40e-03 7.77e-16 1.10e-04 0s 12 1.05004258e+02 1.04964411e+02 4.68e-05 9.99e-16 1.87e-05 0s 13 1.05000006e+02 1.04999964e+02 8.88e-13 6.66e-16 1.96e-08 0s 14 1.05000000e+02 1.05000000e+02 7.11e-13 1.55e-15 1.96e-11 0s Barrier solved model in 14 iterations and 0.01 seconds Optimal objective 1.05000000e+02 Root relaxation: objective 1.050000e+02, 456 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 105.00000 0 8 160.00000 105.00000 34.4% - 0s H 0 0 106.0000000 105.00000 0.94% - 0s H 0 0 105.0000000 105.00000 0.0% - 0s Explored 0 nodes (622 simplex iterations) in 0.07 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.050000000000e+02, best bound 1.050000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.07 seconds Total run time: 0.09 seconds Objective: 105 Solution: 3 x [72] 2 x [71] 2 x [2, 70] 1 x [1, 70] 4 x [69] 2 x [68] 2 x [3, 68] 3 x [67] 2 x [4, 67] 4 x [5, 66] 2 x [7, 65] 1 x [6, 65] 2 x [9, 64] 1 x [8, 64] 1 x [10, 63] 2 x [11, 62] 3 x [12, 61] 2 x [13, 60] 1 x [14, 59] 2 x [14, 58] 1 x [16, 57] 5 x [15, 56] 2 x [18, 55] 2 x [17, 54] 3 x [19, 53] 1 x [20, 52] 4 x [19, 52] 1 x [16, 52] 3 x [21, 51] 3 x [22, 50] 2 x [20, 49] 3 x [23, 48] 1 x [25, 47] 2 x [24, 47] 1 x [26, 46] 2 x [25, 46] 1 x [27, 45] 1 x [23, 45] 1 x [27, 44] 2 x [28, 43] 2 x [29, 42] 2 x [30, 41] 1 x [31, 40] 1 x [5, 7, 39] 3 x [32, 38] 2 x [31, 38] 4 x [33, 37] 2 x [34, 36] 1 x [34, 35] 1 x [32, 35] 1 x [8, 13, 32] 1 x [6, 16, 30] 1 x [6, 16, 29]