Build (method = -2) #dp: 5833 Step-3' Graph: 93 vertices and 1885 arcs (0.03s) Step-4' Graph: 93 vertices and 1885 arcs (0.03s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.03s) Optimize a model with 177 rows, 1886 columns and 5478 nonzeros Presolve removed 48 rows and 50 columns Presolve time: 0.03s Presolved: 129 rows, 1836 columns, 5343 nonzeros Variable types: 0 continuous, 1836 integer (477 binary) Found heuristic solution: objective 167.0000000 Found heuristic solution: objective 160.0000000 Optimize a model with 129 rows, 1836 columns and 5343 nonzeros Presolved: 129 rows, 1836 columns, 5343 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.940e+03 Factor NZ : 5.927e+03 Factor Ops : 3.563e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.60558565e+03 -1.03817790e+04 6.34e+03 1.07e-01 3.51e+01 0s 1 1.10679851e+03 -4.92036850e+03 1.12e+03 5.55e-16 6.93e+00 0s 2 3.26865482e+02 -2.35580682e+03 9.60e+01 1.33e-15 1.12e+00 0s 3 1.96877269e+02 -2.58007630e+02 6.63e+00 1.11e-15 1.38e-01 0s 4 1.59664364e+02 -5.19771211e+01 2.12e+00 4.44e-16 6.02e-02 0s 5 1.30407144e+02 3.46409308e+01 1.05e+00 3.42e-16 2.70e-02 0s 6 1.13459165e+02 6.26582835e+01 4.43e-01 3.33e-16 1.41e-02 0s 7 1.06135113e+02 7.71546008e+01 2.28e-01 2.22e-16 7.99e-03 0s 8 1.01865299e+02 8.80235158e+01 1.17e-01 2.22e-16 3.81e-03 0s 9 1.01190975e+02 9.02646283e+01 9.65e-02 1.86e-16 3.01e-03 0s 10 9.88767451e+01 9.49750243e+01 4.29e-02 2.89e-16 1.08e-03 0s 11 9.73434288e+01 9.60740278e+01 7.08e-03 2.22e-16 3.46e-04 0s 12 9.69779965e+01 9.65155278e+01 1.36e-03 2.06e-16 1.25e-04 0s 13 9.69428332e+01 9.65999113e+01 9.91e-04 2.22e-16 9.30e-05 0s 14 9.68466458e+01 9.67360181e+01 9.26e-05 2.37e-16 2.99e-05 0s 15 9.68340805e+01 9.68308642e+01 5.60e-06 4.44e-16 8.71e-07 0s 16 9.68333341e+01 9.68333309e+01 6.91e-12 2.22e-16 8.76e-10 0s 17 9.68333333e+01 9.68333333e+01 7.60e-12 3.41e-16 8.90e-16 0s Barrier solved model in 17 iterations and 0.02 seconds Optimal objective 9.68333333e+01 Root relaxation: objective 9.683333e+01, 520 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 96.83333 0 14 160.00000 96.83333 39.5% - 0s H 0 0 97.0000000 96.83333 0.17% - 0s Explored 0 nodes (1025 simplex iterations) in 0.10 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.700000000000e+01, best bound 9.700000000000e+01, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.10 seconds Total run time: 0.15 seconds Objective: 97 Solution: 2 x [84] 4 x [83] 1 x [82] 1 x [81] 1 x [2, 81] 1 x [5, 80] 2 x [2, 3, 80] 3 x [6, 79] 1 x [1, 79] 3 x [7, 78] 1 x [10, 77] 1 x [11, 76] 1 x [12, 75] 1 x [10, 75] 1 x [14, 74] 3 x [15, 73] 1 x [1, 4, 10, 73] 4 x [13, 72] 1 x [16, 71] 2 x [18, 70] 1 x [19, 69] 1 x [18, 69] 1 x [4, 16, 68] 1 x [22, 67] 1 x [23, 66] 2 x [21, 66] 1 x [1, 21, 65] 3 x [23, 64] 2 x [22, 64] 2 x [24, 63] 1 x [9, 63] 1 x [25, 62] 1 x [8, 18, 62] 3 x [26, 61] 1 x [25, 61] 1 x [10, 17, 61] 3 x [27, 60] 1 x [28, 59] 2 x [29, 58] 2 x [30, 57] 1 x [32, 56] 3 x [33, 55] 1 x [32, 54] 1 x [31, 54] 2 x [35, 53] 2 x [36, 52] 1 x [34, 52] 1 x [16, 21, 52] 1 x [8, 29, 51] 1 x [10, 27, 51] 1 x [37, 50] 1 x [38, 49] 1 x [8, 31, 49] 1 x [39, 48] 1 x [9, 31, 48] 1 x [40, 47] 1 x [41, 46] 2 x [42, 45] 2 x [42, 44] 2 x [41, 43] 2 x [43, 43] 1 x [20, 28, 40] 1 x [40, 40]