Build (method = -2) #dp: 10986 Step-3' Graph: 152 vertices and 1595 arcs (0.05s) Step-4' Graph: 104 vertices and 1499 arcs (0.05s) #V4/#V3 = 0.68 #A4/#A3 = 0.94 Ready! (0.05s) Optimize a model with 204 rows, 1500 columns and 4298 nonzeros Presolve removed 43 rows and 58 columns Presolve time: 0.02s Presolved: 161 rows, 1442 columns, 4142 nonzeros Variable types: 0 continuous, 1442 integer (62 binary) Found heuristic solution: objective 452.0000000 Found heuristic solution: objective 309.0000000 Optimize a model with 161 rows, 1442 columns and 4142 nonzeros Presolved: 161 rows, 1442 columns, 4142 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.642e+03 Factor NZ : 6.393e+03 Factor Ops : 3.230e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.15679641e+04 -4.56733739e+04 3.38e+04 6.40e-02 1.80e+02 0s 1 5.20122468e+03 -9.91631413e+03 4.96e+03 5.55e-16 2.68e+01 0s 2 8.91871607e+02 -3.34563627e+03 4.46e+02 4.22e-15 3.26e+00 0s 3 4.06342085e+02 -9.62739653e+02 2.61e+01 9.33e-15 5.38e-01 0s 4 3.10207742e+02 -4.02903382e+02 7.47e+00 4.22e-15 2.57e-01 0s 5 2.54190880e+02 -4.07499529e+00 3.06e+00 1.22e-15 9.08e-02 0s 6 2.27164547e+02 1.08988303e+02 1.13e+00 4.44e-16 4.09e-02 0s 7 2.14644113e+02 1.47758000e+02 5.30e-01 3.33e-16 2.30e-02 0s 8 2.05426740e+02 1.79642756e+02 9.41e-02 3.33e-16 8.79e-03 0s 9 2.02939028e+02 1.96233262e+02 1.46e-02 3.33e-16 2.28e-03 0s 10 2.02317070e+02 1.99911242e+02 5.65e-03 2.22e-16 8.18e-04 0s 11 2.02208730e+02 2.00683752e+02 4.25e-03 2.28e-16 5.19e-04 0s 12 2.02097516e+02 2.01355472e+02 2.79e-03 2.45e-16 2.52e-04 0s 13 2.01958860e+02 2.01827201e+02 3.21e-04 3.33e-16 4.48e-05 0s 14 2.01937551e+02 2.01927660e+02 5.20e-05 5.55e-16 3.36e-06 0s 15 2.01933338e+02 2.01933328e+02 2.84e-13 4.44e-16 3.39e-09 0s 16 2.01933333e+02 2.01933333e+02 9.06e-14 3.33e-16 3.39e-12 0s Barrier solved model in 16 iterations and 0.02 seconds Optimal objective 2.01933333e+02 Root relaxation: objective 2.019333e+02, 1065 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 201.93333 0 44 309.00000 201.93333 34.6% - 0s H 0 0 205.0000000 201.93333 1.50% - 0s H 0 0 203.0000000 201.93333 0.53% - 0s 0 0 202.00000 0 95 203.00000 202.00000 0.49% - 0s H 0 0 202.0000000 202.00000 0.0% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 1 Explored 0 nodes (2280 simplex iterations) in 0.26 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.020000000000e+02, best bound 2.020000000000e+02, gap 0.0% Preprocessing time: 0.06 seconds Gurobi run time: 0.26 seconds Total run time: 0.32 seconds Objective: 202 Solution: 4 x [20, 100] 2 x [10, 11, 99] 4 x [22, 98] 3 x [23, 97] 3 x [7, 16, 97] 1 x [4, 20, 96] 2 x [7, 17, 96] 1 x [8, 16, 96] 2 x [25, 95] 3 x [26, 94] 1 x [2, 24, 94] 4 x [9, 17, 94] 1 x [27, 93] 5 x [6, 21, 93] 2 x [8, 19, 93] 4 x [28, 92] 3 x [29, 91] 2 x [30, 90] 1 x [1, 30, 89] 1 x [2, 29, 89] 1 x [11, 20, 89] 5 x [13, 18, 89] 3 x [8, 24, 88] 3 x [33, 87] 1 x [8, 25, 87] 3 x [1, 33, 86] 1 x [10, 24, 86] 4 x [35, 85] 1 x [8, 27, 85] 2 x [36, 84] 3 x [37, 83] 2 x [8, 30, 82] 4 x [9, 29, 82] 4 x [39, 81] 2 x [2, 37, 81] 2 x [14, 25, 81] 6 x [40, 80] 1 x [20, 20, 80] 4 x [41, 79] 6 x [42, 78] 1 x [3, 39, 78] 1 x [10, 32, 78] 2 x [43, 77] 6 x [44, 76] 5 x [45, 75] 2 x [9, 36, 75] 1 x [13, 32, 75] 2 x [14, 32, 74] 2 x [19, 27, 74] 6 x [47, 73] 1 x [15, 32, 73] 3 x [48, 72] 6 x [12, 36, 72] 2 x [49, 71] 3 x [50, 70] 5 x [51, 69] 2 x [52, 68] 3 x [53, 67] 1 x [2, 51, 67] 1 x [2, 52, 66] 2 x [3, 51, 66] 3 x [15, 39, 66] 1 x [11, 37, 66] 6 x [55, 65] 3 x [2, 54, 64] 1 x [8, 48, 64] 1 x [57, 63] 1 x [5, 52, 63] 2 x [2, 56, 62] 3 x [59, 61] 1 x [8, 52, 60] 1 x [60, 60] 1 x [2, 58, 59] 1 x [3, 57, 59] 4 x [5, 57, 58] 2 x [4, 58, 58] 4 x [30, 41, 49] 2 x [34, 38, 48] 1 x [31, 43, 46]