Build (method = -2) #dp: 2102 Step-3' Graph: 63 vertices and 516 arcs (0.01s) Step-4' Graph: 54 vertices and 498 arcs (0.01s) #V4/#V3 = 0.86 #A4/#A3 = 0.97 Ready! (0.01s) Optimize a model with 124 rows, 499 columns and 1393 nonzeros Presolve removed 48 rows and 63 columns Presolve time: 0.01s Presolved: 76 rows, 436 columns, 1217 nonzeros Variable types: 0 continuous, 436 integer (77 binary) Found heuristic solution: objective 192.0000000 Found heuristic solution: objective 172.0000000 Found heuristic solution: objective 132.0000000 Optimize a model with 76 rows, 436 columns and 1217 nonzeros Presolve removed 1 rows and 1 columns Presolved: 75 rows, 435 columns, 1215 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.500e+02 Factor NZ : 1.346e+03 Factor Ops : 2.921e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.70671819e+03 -3.14578149e+03 7.38e+03 2.05e-01 4.12e+01 0s 1 5.28306757e+02 -1.31603371e+03 1.05e+03 4.44e-16 6.59e+00 0s 2 1.92903919e+02 -3.26296834e+02 4.99e+01 5.00e-16 7.38e-01 0s 3 1.54186505e+02 5.12161047e+01 2.90e+00 5.55e-16 1.20e-01 0s 4 1.26359699e+02 1.04947181e+02 2.32e-01 2.22e-16 2.42e-02 0s 5 1.21136317e+02 1.15695285e+02 9.72e-02 3.33e-16 6.20e-03 0s 6 1.18605323e+02 1.17312477e+02 1.69e-02 4.44e-16 1.47e-03 0s 7 1.18027292e+02 1.17956122e+02 5.54e-04 3.33e-16 8.03e-05 0s 8 1.18000028e+02 1.17999956e+02 2.94e-13 4.44e-16 8.03e-08 0s 9 1.18000000e+02 1.18000000e+02 1.47e-13 3.18e-16 8.04e-14 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.18000000e+02 Root relaxation: objective 1.180000e+02, 88 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 118.0000000 118.00000 0.0% - 0s Explored 0 nodes (88 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.180000000000e+02, best bound 1.180000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.02 seconds Total run time: 0.03 seconds Objective: 118 Solution: 4 x [70] 5 x [69] 7 x [68] 4 x [67] 1 x [66] 1 x [65] 4 x [64] 4 x [63] 1 x [62] 1 x [61] 1 x [1, 61] 1 x [60] 2 x [2, 60] 1 x [3, 59] 1 x [4, 58] 4 x [3, 57] 3 x [56] 3 x [7, 55] 2 x [6, 54] 2 x [5, 53] 3 x [9, 52] 3 x [11, 51] 4 x [10, 50] 3 x [13, 49] 1 x [8, 49] 3 x [14, 48] 1 x [7, 48] 3 x [15, 47] 3 x [12, 46] 4 x [17, 45] 1 x [16, 44] 2 x [19, 43] 4 x [18, 43] 1 x [19, 42] 3 x [21, 41] 3 x [22, 40] 1 x [23, 39] 1 x [20, 39] 1 x [3, 39] 1 x [24, 38] 2 x [24, 37] 3 x [25, 36] 5 x [26, 35] 3 x [28, 34] 1 x [27, 34] 2 x [29, 33] 1 x [30, 32] 1 x [31, 31] 1 x [30, 30] 1 x [25, 27]