Build (method = -2) #dp: 6505 Step-3' Graph: 119 vertices and 1634 arcs (0.02s) Step-4' Graph: 84 vertices and 1564 arcs (0.03s) #V4/#V3 = 0.71 #A4/#A3 = 0.96 Ready! (0.03s) Optimize a model with 164 rows, 1565 columns and 4533 nonzeros Presolve removed 27 rows and 44 columns Presolve time: 0.03s Presolved: 137 rows, 1521 columns, 4418 nonzeros Variable types: 0 continuous, 1521 integer (319 binary) Found heuristic solution: objective 219.0000000 Found heuristic solution: objective 175.0000000 Optimize a model with 137 rows, 1521 columns and 4418 nonzeros Presolved: 137 rows, 1521 columns, 4418 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.818e+03 Factor NZ : 5.145e+03 Factor Ops : 2.601e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.32658728e+03 -1.65826575e+04 3.19e+04 2.75e-01 6.30e+01 0s 1 1.87246295e+03 -4.31303713e+03 6.20e+03 5.55e-16 1.22e+01 0s 2 3.44681846e+02 -1.74082183e+03 4.32e+02 2.00e-15 1.31e+00 0s 3 1.85130393e+02 -3.71494479e+02 2.51e+01 9.99e-16 2.04e-01 0s 4 1.37372772e+02 -1.32511422e+02 3.53e+00 4.44e-16 8.97e-02 0s 5 1.17624330e+02 3.44114885e+00 1.46e+00 2.22e-16 3.75e-02 0s 6 1.08388304e+02 5.01000549e+01 5.93e-01 2.60e-16 1.90e-02 0s 7 1.04285167e+02 8.44001296e+01 1.80e-01 2.60e-16 6.46e-03 0s 8 1.01701803e+02 9.53691145e+01 1.65e-02 4.44e-16 2.05e-03 0s 9 1.01197083e+02 9.89016034e+01 5.29e-03 3.93e-16 7.43e-04 0s 10 1.00891851e+02 9.98820792e+01 1.31e-03 3.57e-16 3.27e-04 0s 11 1.00781828e+02 1.00490768e+02 3.54e-04 3.89e-16 9.42e-05 0s 12 1.00754150e+02 1.00596943e+02 1.74e-04 3.81e-16 5.09e-05 0s 13 1.00738834e+02 1.00673128e+02 1.02e-04 4.44e-16 2.13e-05 0s 14 1.00724917e+02 1.00696226e+02 4.32e-05 4.52e-16 9.29e-06 0s 15 1.00716085e+02 1.00707443e+02 1.03e-05 3.90e-16 2.80e-06 0s 16 1.00713737e+02 1.00712519e+02 2.90e-06 5.55e-16 3.94e-07 0s 17 1.00714157e+02 1.00713191e+02 1.46e-06 3.42e-16 3.13e-07 0s 18 1.00713334e+02 1.00713301e+02 7.51e-11 4.44e-16 1.08e-08 0s 19 1.00713333e+02 1.00713333e+02 1.57e-09 5.55e-16 1.10e-11 0s Barrier solved model in 19 iterations and 0.02 seconds Optimal objective 1.00713333e+02 Root relaxation: objective 1.007133e+02, 636 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100.71333 0 51 175.00000 100.71333 42.4% - 0s H 0 0 104.0000000 100.71333 3.16% - 0s H 0 0 103.0000000 100.71333 2.22% - 0s H 0 0 101.0000000 100.71333 0.28% - 0s Explored 0 nodes (1066 simplex iterations) in 0.12 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.010000000000e+02, best bound 1.010000000000e+02, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.12 seconds Total run time: 0.16 seconds Objective: 101 Solution: 1 x [30, 80] 1 x [1, 10, 80] 1 x [5, 7, 80] 2 x [6, 6, 80] 3 x [31, 79] 1 x [32, 78] 2 x [33, 77] 1 x [1, 13, 77] 2 x [2, 12, 77] 4 x [34, 76] 3 x [35, 75] 1 x [1, 15, 75] 2 x [4, 12, 75] 1 x [6, 10, 75] 1 x [36, 74] 1 x [37, 73] 1 x [38, 72] 1 x [3, 16, 72] 1 x [7, 12, 72] 1 x [9, 72] 2 x [9, 9, 72] 2 x [39, 71] 3 x [40, 70] 1 x [6, 15, 70] 3 x [8, 13, 70] 1 x [41, 69] 1 x [42, 68] 3 x [43, 67] 3 x [7, 17, 67] 2 x [44, 66] 1 x [45, 65] 2 x [46, 64] 1 x [1, 20, 64] 3 x [47, 63] 1 x [8, 20, 63] 4 x [48, 62] 1 x [14, 14, 62] 2 x [49, 61] 3 x [50, 60] 2 x [15, 15, 60] 1 x [51, 59] 3 x [52, 58] 1 x [11, 21, 58] 2 x [53, 57] 1 x [54, 56] 1 x [16, 19, 55] 1 x [55, 55] 1 x [16, 21, 53] 1 x [18, 19, 53] 1 x [19, 20, 51] 2 x [22, 22, 46] 1 x [21, 24, 45] 1 x [20, 26, 42] 1 x [23, 25, 42] 1 x [21, 28, 41] 1 x [21, 27, 41] 1 x [18, 26, 41] 2 x [24, 25, 41] 1 x [24, 29, 37] 2 x [22, 32, 36] 1 x [23, 31, 36] 2 x [25, 29, 36]