Build (method = -2) #dp: 2607 Step-3' Graph: 64 vertices and 685 arcs (0.01s) Step-4' Graph: 50 vertices and 657 arcs (0.01s) #V4/#V3 = 0.78 #A4/#A3 = 0.96 Ready! (0.01s) Optimize a model with 131 rows, 658 columns and 1880 nonzeros Presolve removed 53 rows and 65 columns Presolve time: 0.01s Presolved: 78 rows, 593 columns, 1696 nonzeros Variable types: 0 continuous, 593 integer (5 binary) Found heuristic solution: objective 487.0000000 Found heuristic solution: objective 450.0000000 Optimize a model with 78 rows, 593 columns and 1696 nonzeros Presolved: 78 rows, 593 columns, 1696 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.990e+02 Factor NZ : 1.789e+03 Factor Ops : 5.465e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.47150784e+03 -8.39282510e+03 1.35e+04 8.48e-02 5.74e+01 0s 1 1.05996141e+03 -2.87500184e+03 1.70e+03 5.55e-16 8.65e+00 0s 2 4.95748213e+02 -5.86553925e+02 8.73e+01 2.44e-15 1.08e+00 0s 3 4.03192694e+02 -5.31964869e+01 1.30e+00 8.88e-16 3.77e-01 0s 4 3.56165582e+02 1.01833495e+02 6.15e-02 8.88e-16 2.09e-01 0s 5 3.30146799e+02 2.31568296e+02 1.59e-02 4.02e-16 8.11e-02 0s 6 3.16023235e+02 2.93055091e+02 3.39e-03 3.09e-16 1.89e-02 0s 7 3.13382690e+02 3.02582984e+02 4.27e-04 3.33e-16 8.88e-03 0s 8 3.12736943e+02 3.08388522e+02 1.89e-04 3.35e-16 3.58e-03 0s 9 3.12305218e+02 3.09591845e+02 7.90e-05 3.33e-16 2.23e-03 0s 10 3.12033248e+02 3.11777441e+02 8.56e-06 3.33e-16 2.10e-04 0s 11 3.12000441e+02 3.11998763e+02 2.49e-12 3.33e-16 1.38e-06 0s 12 3.12000000e+02 3.11999999e+02 8.44e-13 3.25e-16 1.38e-09 0s 13 3.12000000e+02 3.12000000e+02 1.17e-13 3.49e-16 1.38e-12 0s Barrier solved model in 13 iterations and 0.01 seconds Optimal objective 3.12000000e+02 Root relaxation: objective 3.120000e+02, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 312.0000000 312.00000 0.0% - 0s Explored 0 nodes (240 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.120000000000e+02, best bound 3.120000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 312 Solution: 6 x [81] 7 x [80] 10 x [79] 8 x [78] 3 x [77] 5 x [76] 5 x [75] 8 x [74] 4 x [73] 9 x [72] 3 x [71] 14 x [70] 5 x [69] 7 x [68] 3 x [67] 9 x [66] 6 x [65] 10 x [64] 7 x [63] 2 x [62] 2 x [1, 61] 5 x [2, 60] 1 x [1, 60] 3 x [3, 59] 4 x [4, 58] 1 x [57] 4 x [5, 57] 2 x [6, 56] 2 x [7, 55] 2 x [8, 54] 7 x [7, 54] 7 x [9, 53] 4 x [10, 52] 3 x [10, 51] 8 x [11, 50] 1 x [9, 50] 5 x [13, 49] 6 x [12, 49] 4 x [14, 48] 4 x [15, 47] 1 x [14, 47] 7 x [16, 46] 1 x [8, 46] 5 x [17, 45] 6 x [18, 44] 3 x [17, 44] 2 x [8, 44] 7 x [19, 43] 5 x [20, 42] 2 x [20, 41] 4 x [22, 40] 3 x [21, 40] 1 x [20, 40] 7 x [23, 39] 3 x [24, 38] 2 x [23, 38] 5 x [21, 38] 7 x [25, 37] 1 x [25, 36] 5 x [24, 36] 7 x [26, 35] 4 x [28, 34] 1 x [29, 33] 4 x [27, 33] 4 x [30, 32] 1 x [28, 32] 3 x [6, 6, 31] 1 x [8, 12, 22] 3 x [4, 19, 20] 1 x [3, 19, 19]