Build (method = -2) #dp: 1894 Step-3' Graph: 53 vertices and 498 arcs (0.00s) Step-4' Graph: 51 vertices and 494 arcs (0.01s) #V4/#V3 = 0.96 #A4/#A3 = 0.99 Ready! (0.01s) Optimize a model with 118 rows, 495 columns and 1390 nonzeros Presolve removed 45 rows and 58 columns Presolve time: 0.01s Presolved: 73 rows, 437 columns, 1227 nonzeros Variable types: 0 continuous, 437 integer (98 binary) Found heuristic solution: objective 175.0000000 Found heuristic solution: objective 151.0000000 Optimize a model with 73 rows, 437 columns and 1227 nonzeros Presolved: 73 rows, 437 columns, 1227 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.400e+02 Factor NZ : 1.323e+03 Factor Ops : 2.894e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.36221315e+03 -2.88752284e+03 5.97e+03 1.82e-01 3.22e+01 0s 1 4.80735263e+02 -1.18272199e+03 9.16e+02 6.66e-16 5.58e+00 0s 2 1.96412399e+02 -2.41000133e+02 4.80e+01 1.55e-15 6.24e-01 0s 3 1.57127939e+02 3.28483516e+01 1.77e+00 4.44e-16 1.41e-01 0s 4 1.36273217e+02 8.75997082e+01 3.53e-01 2.78e-16 5.47e-02 0s 5 1.21456191e+02 1.12138692e+02 4.68e-02 2.22e-16 1.04e-02 0s 6 1.19432688e+02 1.16876538e+02 2.31e-02 2.26e-16 2.87e-03 0s 7 1.18639349e+02 1.18360610e+02 1.78e-03 8.88e-16 3.12e-04 0s 8 1.18500169e+02 1.18499810e+02 1.82e-12 6.66e-16 4.00e-07 0s 9 1.18500000e+02 1.18500000e+02 4.90e-13 8.88e-16 4.01e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.18500000e+02 Root relaxation: objective 1.185000e+02, 191 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 118.50000 0 5 151.00000 118.50000 21.5% - 0s H 0 0 119.0000000 118.50000 0.42% - 0s Explored 0 nodes (267 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.190000000000e+02, best bound 1.190000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.02 seconds Total run time: 0.03 seconds Objective: 119 Solution: 2 x [67] 3 x [66] 3 x [65] 3 x [64] 5 x [63] 4 x [62] 3 x [61] 3 x [60] 4 x [59] 5 x [1, 58] 2 x [2, 57] 1 x [56] 1 x [3, 56] 1 x [4, 55] 3 x [3, 55] 4 x [5, 54] 1 x [4, 54] 3 x [6, 53] 1 x [7, 52] 1 x [8, 51] 2 x [7, 50] 6 x [49] 1 x [9, 49] 1 x [11, 48] 2 x [10, 48] 1 x [7, 48] 1 x [13, 47] 4 x [12, 47] 3 x [14, 46] 1 x [14, 45] 3 x [15, 44] 1 x [14, 44] 3 x [17, 43] 1 x [17, 42] 4 x [18, 41] 2 x [16, 40] 3 x [20, 39] 1 x [21, 38] 3 x [23, 37] 3 x [22, 36] 2 x [25, 35] 1 x [21, 35] 1 x [14, 34] 3 x [26, 33] 2 x [28, 32] 2 x [26, 32] 4 x [29, 31] 1 x [27, 31] 2 x [24, 30] 1 x [19, 30] 1 x [19]