Build (method = -2) #dp: 3347 Step-3' Graph: 277 vertices and 1810 arcs (0.01s) Step-4' Graph: 238 vertices and 1732 arcs (0.02s) #V4/#V3 = 0.86 #A4/#A3 = 0.96 Ready! (0.02s) Optimize a model with 277 rows, 1733 columns and 4745 nonzeros Presolve removed 52 rows and 76 columns Presolve time: 0.05s Presolved: 225 rows, 1657 columns, 4668 nonzeros Variable types: 0 continuous, 1657 integer (131 binary) Found heuristic solution: objective 338.0000000 Found heuristic solution: objective 337.0000000 Optimize a model with 225 rows, 1657 columns and 4668 nonzeros Presolved: 225 rows, 1657 columns, 4668 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.752e+03 Factor NZ : 9.338e+03 Factor Ops : 5.813e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.69965616e+03 -3.53674470e+04 5.40e+04 7.77e-02 1.45e+02 0s 1 1.58522003e+03 -1.80064018e+04 9.99e+03 7.77e-16 2.86e+01 0s 2 5.42304213e+02 -7.99064728e+03 9.02e+02 1.89e-14 4.27e+00 0s 3 4.16515172e+02 -1.51228315e+03 9.54e+01 7.77e-15 7.00e-01 0s 4 3.79722093e+02 -4.93267399e+02 2.42e+01 3.33e-15 2.82e-01 0s 5 3.43050502e+02 -2.74910109e+02 1.27e+01 2.22e-15 1.95e-01 0s 6 2.90377244e+02 -9.42797205e+01 7.23e+00 1.22e-15 1.20e-01 0s 7 2.63170370e+02 -5.00110728e+00 4.64e+00 9.99e-16 8.32e-02 0s 8 2.19774549e+02 1.01233302e+02 1.23e+00 6.14e-16 3.62e-02 0s 9 2.01427582e+02 1.25914860e+02 4.24e-01 5.71e-16 2.29e-02 0s 10 1.93751749e+02 1.71050909e+02 8.12e-02 4.77e-16 6.85e-03 0s 11 1.91166932e+02 1.89910307e+02 3.71e-03 4.47e-16 3.79e-04 0s 12 1.91000282e+02 1.90999636e+02 4.59e-06 4.60e-16 1.96e-07 0s 13 1.91000000e+02 1.91000000e+02 4.95e-12 5.93e-16 2.01e-13 0s Barrier solved model in 13 iterations and 0.03 seconds Optimal objective 1.91000000e+02 Root relaxation: objective 1.910000e+02, 715 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 191.0000000 191.00000 0.0% - 0s Explored 0 nodes (715 simplex iterations) in 0.13 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.910000000000e+02, best bound 1.910000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.13 seconds Total run time: 0.16 seconds Objective: 191 Solution: 7 x [35] 1 x [34] 2 x [33, 34] 8 x [25, 34] 5 x [31, 39] 8 x [31, 33] 5 x [38] 3 x [5, 38] 2 x [11, 11, 11, 38] 2 x [21, 39] 9 x [15, 17] 7 x [10, 20] 6 x [4, 20] 13 x [13, 24] 7 x [1, 32] 5 x [30, 32] 4 x [10, 32] 6 x [11, 22, 27] 2 x [4, 27] 1 x [23] 2 x [18, 23] 2 x [13, 28] 7 x [7, 11, 28] 3 x [6, 28] 4 x [19, 33] 1 x [16, 19, 33] 11 x [12, 36] 7 x [4, 36, 39] 7 x [9] 4 x [2, 9] 5 x [9, 25] 1 x [8, 22] 6 x [7, 8, 26] 1 x [8, 25] 2 x [3, 6, 7] 8 x [37] 3 x [14, 37] 12 x [6, 29, 37] 2 x [17, 17, 37]