Build (method = -2) #dp: 5356 Step-3' Graph: 91 vertices and 1776 arcs (0.02s) Step-4' Graph: 91 vertices and 1776 arcs (0.02s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.02s) Optimize a model with 177 rows, 1777 columns and 5153 nonzeros Presolve removed 57 rows and 76 columns Presolve time: 0.05s Presolved: 120 rows, 1701 columns, 4933 nonzeros Variable types: 0 continuous, 1701 integer (488 binary) Found heuristic solution: objective 173.0000000 Found heuristic solution: objective 151.0000000 Optimize a model with 120 rows, 1701 columns and 4933 nonzeros Presolved: 120 rows, 1701 columns, 4933 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.394e+03 Factor NZ : 5.192e+03 Factor Ops : 2.985e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.03388149e+03 -7.50281799e+03 3.64e+03 9.55e-02 1.87e+01 0s 1 6.96999143e+02 -2.80111119e+03 5.70e+02 5.55e-16 3.35e+00 0s 2 2.75200835e+02 -1.22673049e+03 6.71e+01 6.38e-16 6.62e-01 0s 3 1.79024591e+02 -1.13088186e+02 2.29e+00 6.25e-16 8.97e-02 0s 4 1.44536983e+02 1.61702940e+01 6.71e-01 2.95e-16 3.82e-02 0s 5 1.23062958e+02 6.55214306e+01 2.52e-01 2.22e-16 1.70e-02 0s 6 1.14638024e+02 8.64290135e+01 1.19e-01 3.33e-16 8.32e-03 0s 7 1.12905179e+02 9.73534299e+01 9.11e-02 1.47e-16 4.60e-03 0s 8 1.08482000e+02 1.03144048e+02 1.60e-02 2.22e-16 1.57e-03 0s 9 1.07642323e+02 1.06896276e+02 1.46e-03 2.91e-16 2.19e-04 0s 10 1.07500779e+02 1.07498082e+02 1.63e-12 3.28e-16 7.87e-07 0s 11 1.07500001e+02 1.07499998e+02 2.90e-13 3.33e-16 7.87e-10 0s 12 1.07500000e+02 1.07500000e+02 3.66e-13 2.73e-16 7.87e-13 0s Barrier solved model in 12 iterations and 0.02 seconds Optimal objective 1.07500000e+02 Root relaxation: objective 1.075000e+02, 826 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 107.50000 0 7 151.00000 107.50000 28.8% - 0s H 0 0 109.0000000 107.50000 1.38% - 0s 0 0 107.50000 0 4 109.00000 107.50000 1.38% - 0s H 0 0 108.0000000 107.50000 0.46% - 0s Cutting planes: Gomory: 2 Explored 0 nodes (1056 simplex iterations) in 0.16 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.080000000000e+02, best bound 1.080000000000e+02, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.16 seconds Total run time: 0.20 seconds Objective: 108 Solution: 2 x [86] 1 x [85] 1 x [84] 5 x [83] 2 x [82] 2 x [81] 3 x [80] 2 x [79] 2 x [2, 78] 1 x [77] 1 x [10, 76] 2 x [4, 76] 2 x [3, 76] 2 x [75] 1 x [13, 74] 2 x [12, 74] 1 x [73] 3 x [15, 72] 1 x [15, 71] 1 x [16, 70] 1 x [69] 2 x [17, 68] 2 x [14, 67] 2 x [19, 66] 1 x [21, 65] 1 x [21, 64] 1 x [20, 64] 1 x [2, 19, 64] 2 x [8, 12, 63] 3 x [23, 62] 2 x [22, 61] 1 x [1, 7, 9, 61] 1 x [25, 60] 1 x [24, 60] 2 x [18, 60] 2 x [59] 2 x [27, 58] 2 x [26, 57] 1 x [28, 56] 2 x [11, 16, 56] 1 x [55] 1 x [30, 55] 1 x [6, 17, 55] 1 x [31, 54] 2 x [30, 54] 1 x [32, 53] 2 x [31, 53] 1 x [33, 52] 2 x [34, 51] 2 x [35, 50] 3 x [33, 50] 1 x [35, 49] 1 x [5, 8, 49] 3 x [36, 48] 2 x [36, 47] 1 x [38, 46] 3 x [37, 46] 2 x [7, 29, 45] 3 x [39, 44] 3 x [41, 43] 1 x [42] 1 x [42, 42] 1 x [40, 41]