Build (method = -2) #dp: 1951 Step-3' Graph: 59 vertices and 569 arcs (0.01s) Step-4' Graph: 44 vertices and 539 arcs (0.01s) #V4/#V3 = 0.75 #A4/#A3 = 0.95 Ready! (0.01s) Optimize a model with 117 rows, 540 columns and 1538 nonzeros Presolve removed 51 rows and 62 columns Presolve time: 0.01s Presolved: 66 rows, 478 columns, 1367 nonzeros Variable types: 0 continuous, 478 integer (84 binary) Found heuristic solution: objective 185.0000000 Optimize a model with 66 rows, 478 columns and 1367 nonzeros Presolved: 66 rows, 478 columns, 1367 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.600e+02 Factor NZ : 1.469e+03 Factor Ops : 4.166e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.16442490e+03 -2.55573518e+03 8.94e+03 3.23e-01 2.80e+01 0s 1 4.06039019e+02 -9.88267669e+02 1.27e+03 5.55e-16 4.52e+00 0s 2 1.98795734e+02 -2.61705935e+02 7.68e+01 6.66e-16 6.06e-01 0s 3 1.55084365e+02 4.91916806e+00 1.14e+00 3.89e-16 1.55e-01 0s 4 1.38446849e+02 7.01572867e+01 1.51e-01 3.33e-16 6.99e-02 0s 5 1.32875335e+02 1.06360184e+02 5.23e-02 2.22e-16 2.71e-02 0s 6 1.30841433e+02 1.21941973e+02 1.15e-02 2.22e-16 9.10e-03 0s 7 1.30095792e+02 1.25008386e+02 6.84e-03 2.22e-16 5.20e-03 0s 8 1.29310554e+02 1.28111570e+02 1.52e-03 1.72e-16 1.23e-03 0s 9 1.29217781e+02 1.28243990e+02 1.02e-03 2.22e-16 9.96e-04 0s 10 1.29028686e+02 1.28954560e+02 2.48e-05 2.22e-16 7.58e-05 0s 11 1.29000159e+02 1.28999702e+02 6.45e-08 3.33e-16 4.67e-07 0s 12 1.29000000e+02 1.29000000e+02 5.15e-14 2.22e-16 4.67e-10 0s 13 1.29000000e+02 1.29000000e+02 3.48e-13 3.33e-16 5.14e-16 0s Barrier solved model in 13 iterations and 0.00 seconds Optimal objective 1.29000000e+02 Root relaxation: objective 1.290000e+02, 99 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 129.0000000 129.00000 0.0% - 0s Explored 0 nodes (127 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.290000000000e+02, best bound 1.290000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 129 Solution: 2 x [73] 5 x [72] 1 x [71] 2 x [70] 4 x [69] 2 x [68] 4 x [67] 3 x [66] 5 x [65] 7 x [64] 5 x [63] 3 x [62] 1 x [61] 3 x [60] 3 x [59] 4 x [58] 3 x [57] 2 x [56] 1 x [55] 4 x [1, 55] 2 x [54] 1 x [53] 1 x [2, 53] 1 x [52] 1 x [3, 52] 2 x [4, 51] 3 x [5, 50] 1 x [6, 49] 2 x [7, 48] 1 x [6, 47] 2 x [6, 46] 4 x [9, 45] 1 x [10, 44] 2 x [11, 43] 2 x [12, 42] 1 x [10, 42] 3 x [14, 41] 2 x [13, 40] 3 x [17, 39] 1 x [15, 39] 1 x [16, 38] 1 x [14, 38] 2 x [18, 37] 1 x [19, 36] 1 x [16, 36] 3 x [19, 35] 1 x [22, 34] 3 x [20, 34] 2 x [21, 33] 1 x [23, 32] 2 x [22, 32] 1 x [24, 31] 1 x [23, 31] 1 x [4, 4, 30] 1 x [27, 29] 2 x [26, 28] 1 x [4, 8, 26] 1 x [5, 7, 26] 2 x [5, 8, 25] 1 x [11, 13, 13]