Build (method = -2) #dp: 13393 Step-3' Graph: 176 vertices and 1818 arcs (0.07s) Step-4' Graph: 105 vertices and 1676 arcs (0.07s) #V4/#V3 = 0.60 #A4/#A3 = 0.92 Ready! (0.07s) Optimize a model with 204 rows, 1677 columns and 4827 nonzeros Presolve removed 28 rows and 37 columns Presolve time: 0.01s Presolved: 176 rows, 1640 columns, 4728 nonzeros Variable types: 0 continuous, 1640 integer (51 binary) Found heuristic solution: objective 482.0000000 Found heuristic solution: objective 301.0000000 Optimize a model with 176 rows, 1640 columns and 4728 nonzeros Presolved: 176 rows, 1640 columns, 4728 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.116e+03 Factor NZ : 7.183e+03 Factor Ops : 4.372e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.58896917e+04 -6.45717764e+04 2.92e+04 1.79e-01 1.90e+02 0s 1 7.15752947e+03 -1.05492615e+04 5.17e+03 5.55e-16 3.24e+01 0s 2 1.03733230e+03 -3.85788808e+03 4.41e+02 3.74e-14 3.64e+00 0s 3 4.13328534e+02 -1.21219155e+03 2.43e+01 6.00e-15 5.68e-01 0s 4 2.72332095e+02 -4.38104450e+02 2.04e+00 2.89e-15 2.17e-01 0s 5 2.26686540e+02 -2.42919092e+02 1.11e+00 1.78e-15 1.42e-01 0s 6 1.92242270e+02 -5.04154881e+01 4.78e-01 8.88e-16 7.29e-02 0s 7 1.72768368e+02 1.20084799e+02 1.33e-01 6.04e-16 1.58e-02 0s 8 1.68946343e+02 1.55868039e+02 6.66e-02 6.91e-16 3.91e-03 0s 9 1.66689079e+02 1.66422727e+02 4.55e-05 6.64e-16 7.95e-05 0s 10 1.66666689e+02 1.66666423e+02 2.27e-12 6.56e-16 7.95e-08 0s 11 1.66666667e+02 1.66666667e+02 1.83e-12 6.42e-16 7.97e-14 0s Barrier solved model in 11 iterations and 0.02 seconds Optimal objective 1.66666667e+02 Root relaxation: objective 1.666667e+02, 1377 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 166.66667 0 24 301.00000 166.66667 44.6% - 0s H 0 0 172.0000000 166.66667 3.10% - 0s H 0 0 167.0000000 166.66667 0.20% - 0s Explored 0 nodes (1842 simplex iterations) in 0.13 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: 0.09 seconds Gurobi run time: 0.13 seconds Total run time: 0.22 seconds Objective: 167 Solution: 1 x [20, 26, 99] 4 x [24, 24, 99] 3 x [1, 49, 98] 2 x [21, 26, 97] 4 x [5, 47, 96] 4 x [3, 45, 95] 4 x [4, 50, 94] 7 x [17, 19, 93] 2 x [18, 36, 92] 2 x [18, 29, 91] 1 x [27, 91] 2 x [27, 27, 91] 6 x [21, 35, 90] 3 x [9, 49, 89] 1 x [17, 19, 89] 6 x [23, 33, 88] 5 x [8, 53, 87] 1 x [16, 42, 87] 1 x [16, 45, 86] 3 x [16, 44, 86] 2 x [6, 53, 85] 5 x [29, 32, 85] 4 x [5, 58, 84] 1 x [7, 53, 83] 4 x [28, 36, 83] 1 x [2, 63, 82] 2 x [2, 59, 82] 2 x [9, 54, 82] 1 x [14, 50, 82] 6 x [23, 41, 82] 4 x [31, 34, 81] 3 x [25, 42, 80] 1 x [1, 66, 79] 3 x [20, 43, 79] 3 x [3, 65, 78] 5 x [22, 46, 77] 1 x [20, 44, 77] 2 x [2, 70, 76] 1 x [5, 65, 76] 1 x [7, 64, 76] 2 x [25, 44, 76] 1 x [6, 65, 75] 4 x [13, 57, 75] 1 x [2, 72, 74] 2 x [15, 58, 74] 1 x [28, 45, 74] 2 x [2, 71, 73] 1 x [23, 51, 73] 3 x [7, 67, 72] 3 x [9, 66, 72] 1 x [2, 72, 72] 1 x [11, 65, 70] 2 x [10, 65, 70] 2 x [13, 63, 70] 4 x [38, 39, 69] 3 x [12, 66, 68] 1 x [12, 66, 66] 3 x [29, 52, 63] 1 x [31, 48, 62] 1 x [37, 39, 62] 2 x [37, 40, 61] 3 x [30, 56, 60] 1 x [30, 43, 56] 1 x [35, 54, 55] 1 x [35, 50, 55] 2 x [35, 55, 55] 3 x [41, 48, 51] 1 x [13, 20, 24]