Build (method = -2) #dp: 18783 Step-3' Graph: 145 vertices and 5107 arcs (0.09s) Step-4' Graph: 145 vertices and 5107 arcs (0.09s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.09s) Optimize a model with 243 rows, 5108 columns and 15041 nonzeros Presolve removed 28 rows and 28 columns Presolve time: 0.06s Presolved: 215 rows, 5080 columns, 14960 nonzeros Variable types: 0 continuous, 5080 integer (206 binary) Found heuristic solution: objective 457.0000000 Found heuristic solution: objective 335.0000000 Optimize a model with 215 rows, 5080 columns and 14960 nonzeros Presolved: 215 rows, 5080 columns, 14960 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.143e+04 Factor NZ : 1.543e+04 (roughly 2 MBytes of memory) Factor Ops : 1.464e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.15618996e+04 -5.18921826e+04 3.87e+04 6.41e-02 1.67e+02 0s 1 5.55991250e+03 -3.03920926e+04 5.35e+03 6.66e-16 2.51e+01 0s 2 1.04449104e+03 -1.47341392e+04 4.55e+02 1.44e-15 3.24e+00 0s 3 6.77803006e+02 -3.88472805e+03 5.47e+01 1.11e-15 5.66e-01 0s 4 5.59691205e+02 -9.32916242e+02 1.48e+01 5.55e-16 1.65e-01 0s 5 5.13953517e+02 -4.53023680e+02 1.19e+01 5.55e-16 1.07e-01 0s 6 4.08985100e+02 -2.03100920e+02 6.25e+00 4.44e-16 6.53e-02 0s 7 3.45909177e+02 -9.11234769e+01 4.27e+00 3.33e-16 4.61e-02 0s 8 2.95388153e+02 1.48322427e+01 2.81e+00 3.33e-16 2.93e-02 0s 9 2.39114858e+02 3.54029278e+01 1.66e+00 2.22e-16 2.10e-02 0s 10 2.04047344e+02 9.07437085e+01 9.64e-01 2.17e-16 1.16e-02 0s 11 1.88653077e+02 1.15731502e+02 6.37e-01 2.22e-16 7.39e-03 0s 12 1.78663236e+02 1.31011330e+02 4.12e-01 2.72e-16 4.80e-03 0s 13 1.74162292e+02 1.39350366e+02 2.73e-01 2.31e-16 3.48e-03 0s 14 1.72350524e+02 1.47302131e+02 2.10e-01 2.22e-16 2.50e-03 0s 15 1.71108843e+02 1.55616970e+02 1.51e-01 2.32e-16 1.54e-03 0s 16 1.68773690e+02 1.60257999e+02 7.63e-02 2.46e-16 8.41e-04 0s 17 1.68323488e+02 1.62420314e+02 6.41e-02 2.47e-16 5.83e-04 0s 18 1.67785910e+02 1.63892569e+02 4.80e-02 2.22e-16 3.84e-04 0s 19 1.67497179e+02 1.64668605e+02 3.71e-02 2.22e-16 2.78e-04 0s 20 1.67262100e+02 1.65140349e+02 2.86e-02 2.22e-16 2.09e-04 0s 21 1.66714854e+02 1.66183803e+02 5.35e-03 3.33e-16 5.20e-05 0s 22 1.66668931e+02 1.66340209e+02 2.88e-03 3.33e-16 3.22e-05 0s 23 1.66608933e+02 1.66596436e+02 9.66e-13 4.44e-16 1.22e-06 0s 24 1.66606669e+02 1.66606651e+02 6.96e-13 3.06e-16 1.73e-09 0s 25 1.66606667e+02 1.66606667e+02 2.84e-13 2.87e-16 1.73e-12 0s Barrier solved model in 25 iterations and 0.12 seconds Optimal objective 1.66606667e+02 Root relaxation: objective 1.666067e+02, 4611 iterations, 0.20 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 166.60667 0 63 335.00000 166.60667 50.3% - 0s H 0 0 168.0000000 166.60667 0.83% - 0s H 0 0 167.0000000 166.60667 0.24% - 1s Explored 0 nodes (7771 simplex iterations) in 1.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.670000000000e+02, best bound 1.670000000000e+02, gap 0.0% Preprocessing time: 0.12 seconds Gurobi run time: 1.03 seconds Total run time: 1.14 seconds Objective: 167 Solution: 4 x [48, 98] 1 x [10, 39, 97] 2 x [18, 31, 97] 1 x [50, 96] 1 x [3, 47, 96] 4 x [14, 17, 20, 96] 1 x [8, 13, 14, 17, 96] 3 x [51, 95] 1 x [12, 40, 94] 3 x [22, 29, 94] 1 x [5, 12, 94] 4 x [53, 93] 1 x [14, 39, 93] 1 x [2, 25, 27, 92] 1 x [3, 13, 27, 92] 2 x [55, 91] 2 x [17, 38, 91] 4 x [56, 90] 1 x [18, 39, 89] 2 x [58, 88] 2 x [17, 42, 87] 1 x [9, 19, 30, 87] 2 x [3, 13, 13, 30, 87] 1 x [5, 12, 12, 30, 87] 2 x [24, 35, 86] 3 x [15, 46, 85] 2 x [7, 18, 36, 85] 4 x [26, 34, 85] 3 x [8, 54, 84] 3 x [63, 83] 1 x [15, 48, 83] 2 x [24, 38, 83] 6 x [64, 82] 3 x [29, 33, 82] 3 x [25, 39, 81] 5 x [66, 80] 7 x [67, 79] 6 x [68, 78] 1 x [11, 58, 77] 1 x [5, 12, 52, 77] 1 x [6, 6, 18, 39, 77] 2 x [31, 37, 76] 3 x [71, 75] 7 x [72, 74] 4 x [73, 73] 2 x [30, 42, 72] 3 x [2, 23, 49, 71] 1 x [19, 21, 33, 71] 2 x [10, 11, 21, 32, 71] 4 x [4, 10, 62, 70] 1 x [11, 66, 69] 4 x [1, 16, 60, 69] 2 x [2, 23, 51, 69] 1 x [28, 48, 69] 2 x [19, 26, 30, 69] 2 x [33, 43, 68] 6 x [28, 52, 65] 1 x [11, 30, 35, 65] 1 x [4, 10, 14, 56, 62] 1 x [8, 13, 19, 37, 61] 2 x [6, 35, 44, 59] 1 x [11, 32, 43, 58] 1 x [12, 35, 39, 58] 1 x [10, 11, 32, 33, 58] 5 x [40, 47, 57] 2 x [7, 36, 49, 52] 1 x [18, 35, 39, 52] 1 x [24, 32, 40, 47] 5 x [15, 41, 43, 45]