Build (method = -2) #dp: 2691 Step-3' Graph: 77 vertices and 258 arcs (0.01s) Step-4' Graph: 36 vertices and 176 arcs (0.01s) #V4/#V3 = 0.47 #A4/#A3 = 0.68 Ready! (0.01s) Optimize a model with 108 rows, 177 columns and 463 nonzeros Presolve removed 48 rows and 51 columns Presolve time: 0.00s Presolved: 60 rows, 126 columns, 313 nonzeros Variable types: 0 continuous, 126 integer (9 binary) Found heuristic solution: objective 181.0000000 Found heuristic solution: objective 160.0000000 Found heuristic solution: objective 103.0000000 Optimize a model with 60 rows, 126 columns and 313 nonzeros Presolve removed 1 rows and 1 columns Presolved: 59 rows, 125 columns, 311 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.150e+02 Factor NZ : 9.310e+02 Factor Ops : 1.898e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.41308257e+03 -3.63452586e+03 5.44e+02 2.22e-16 7.98e+01 0s 1 8.30581984e+02 -1.06525446e+03 7.70e+01 5.55e-16 1.24e+01 0s 2 1.96605068e+02 -9.47958239e+01 3.70e+00 3.00e-15 1.22e+00 0s 3 1.33491703e+02 4.09401199e+01 2.89e-02 8.88e-16 3.35e-01 0s 4 1.07153903e+02 9.61995713e+01 4.63e-05 4.44e-16 3.95e-02 0s 5 1.02635215e+02 1.00812817e+02 1.24e-05 5.55e-16 6.58e-03 0s 6 1.02074183e+02 1.01890130e+02 1.24e-06 2.64e-16 6.64e-04 0s 7 1.02002196e+02 1.01999103e+02 2.25e-08 3.33e-16 1.12e-05 0s 8 1.02000002e+02 1.01999999e+02 2.84e-11 4.79e-16 1.12e-08 0s 9 1.02000000e+02 1.02000000e+02 4.95e-12 3.33e-16 1.12e-11 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.02000000e+02 Root relaxation: objective 1.020000e+02, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 102.0000000 102.00000 0.0% - 0s Explored 0 nodes (42 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.020000000000e+02, best bound 1.020000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 102 Solution: 4 x [72] 1 x [1, 72] 1 x [2, 71] 5 x [2, 70] 1 x [4, 69] 2 x [4, 68] 2 x [6, 67] 1 x [7, 66] 4 x [5, 66] 1 x [3, 66] 3 x [8, 65] 1 x [2, 65] 2 x [10, 64] 5 x [9, 63] 2 x [11, 62] 1 x [10, 62] 2 x [12, 61] 1 x [14, 60] 2 x [13, 59] 3 x [14, 58] 3 x [17, 57] 4 x [18, 56] 1 x [12, 55] 4 x [16, 54] 2 x [20, 53] 4 x [15, 52] 2 x [23, 51] 2 x [19, 51] 3 x [24, 50] 3 x [25, 49] 1 x [24, 49] 1 x [26, 48] 1 x [22, 48] 1 x [28, 47] 2 x [27, 46] 1 x [30, 45] 1 x [27, 44] 3 x [31, 43] 4 x [32, 42] 5 x [36, 41] 1 x [36, 40] 1 x [21, 40] 4 x [29, 39] 2 x [37, 38] 1 x [34, 35] 1 x [33, 33]