Build (method = -2) #dp: 653 Step-3' Graph: 12 vertices and 139 arcs (0.00s) Step-4' Graph: 8 vertices and 131 arcs (0.00s) #V4/#V3 = 0.67 #A4/#A3 = 0.94 Ready! (0.00s) Optimize a model with 88 rows, 132 columns and 385 nonzeros Presolve removed 44 rows and 44 columns Presolve time: 0.00s Presolved: 44 rows, 88 columns, 252 nonzeros Variable types: 0 continuous, 88 integer (3 binary) Found heuristic solution: objective 433.0000000 Found heuristic solution: objective 293.0000000 Found heuristic solution: objective 265.0000000 Optimize a model with 44 rows, 88 columns and 252 nonzeros Presolved: 44 rows, 88 columns, 252 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.500e+01 Factor NZ : 5.560e+02 Factor Ops : 1.075e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.68592815e+03 -1.40052121e+03 5.77e+01 0.00e+00 3.85e+01 0s 1 5.06372332e+02 -2.95493324e+02 4.02e+00 8.88e-16 5.10e+00 0s 2 3.30715565e+02 1.38113970e+02 3.90e-03 9.44e-15 9.05e-01 0s 3 2.53354608e+02 2.19862818e+02 5.87e-05 8.88e-16 1.57e-01 0s 4 2.47627818e+02 2.41929748e+02 1.84e-06 2.22e-16 2.66e-02 0s 5 2.44511843e+02 2.44367854e+02 4.34e-08 3.33e-16 6.73e-04 0s 6 2.44500000e+02 2.44500000e+02 6.51e-14 3.33e-16 1.54e-09 0s 7 2.44500000e+02 2.44500000e+02 2.84e-14 3.33e-16 2.94e-15 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.44500000e+02 Root relaxation: objective 2.445000e+02, 43 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 244.50000 0 2 265.00000 244.50000 7.74% - 0s H 0 0 245.0000000 244.50000 0.20% - 0s Explored 0 nodes (43 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.450000000000e+02, best bound 2.450000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.01 seconds Objective: 245 Solution: 8 x [80] 7 x [68] 2 x [63] 1 x [52] 2 x [42] 5 x [10] 7 x [70, 72] 4 x [34, 56] 9 x [15, 47] 6 x [23, 40] 1 x [19, 70] 3 x [19, 37] 1 x [2, 40] 3 x [2, 20] 4 x [24, 78] 1 x [73] 3 x [28, 73] 2 x [64, 77] 1 x [39, 64] 9 x [62] 8 x [60, 77] 1 x [16, 58] 2 x [45, 50] 3 x [24, 33] 1 x [31, 33] 1 x [14, 15] 3 x [4, 14] 6 x [12, 39] 8 x [8, 16] 6 x [1, 30] 9 x [71] 9 x [57] 4 x [49, 61] 8 x [11, 48] 1 x [44, 66] 4 x [27, 59] 1 x [26, 43] 3 x [5, 26] 6 x [21, 43] 6 x [18, 69] 7 x [32, 54] 10 x [51, 65] 5 x [3, 22] 8 x [13, 67] 1 x [13, 55] 6 x [9, 74] 1 x [9, 55] 6 x [7, 17] 1 x [76] 3 x [41, 76] 1 x [29, 76] 2 x [38, 53] 8 x [36, 53] 3 x [6, 46] 6 x [29, 41] 1 x [29, 38] 2 x [35, 79] 3 x [18, 75] 1 x [25, 55] 1 x [3, 18]