Build (method = -2) #dp: 3463 Step-3' Graph: 112 vertices and 353 arcs (0.01s) Step-4' Graph: 29 vertices and 187 arcs (0.02s) #V4/#V3 = 0.26 #A4/#A3 = 0.53 Ready! (0.02s) Optimize a model with 109 rows, 188 columns and 511 nonzeros Presolve removed 28 rows and 29 columns Presolve time: 0.00s Presolved: 81 rows, 159 columns, 426 nonzeros Variable types: 0 continuous, 159 integer (0 binary) Found heuristic solution: objective 498.0000000 Found heuristic solution: objective 308.0000000 Optimize a model with 81 rows, 159 columns and 426 nonzeros Presolved: 81 rows, 159 columns, 426 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.590e+02 Factor NZ : 1.052e+03 Factor Ops : 2.102e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.28138027e+03 -5.90386965e+03 2.71e+03 2.22e-16 1.06e+02 0s 1 1.59338165e+03 -1.98109129e+03 3.25e+02 4.44e-16 1.61e+01 0s 2 3.73879241e+02 -1.22977874e+02 1.53e-13 5.22e-15 1.33e+00 0s 3 2.70066934e+02 1.44195357e+02 1.99e-13 1.44e-15 3.37e-01 0s 4 2.51047386e+02 2.43884323e+02 1.23e-12 3.33e-16 1.92e-02 0s 5 2.50000232e+02 2.49998972e+02 2.66e-13 3.33e-16 3.38e-06 0s 6 2.50000000e+02 2.50000000e+02 6.06e-13 2.22e-16 3.43e-12 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 250.0000000 250.00000 0.0% - 0s Explored 0 nodes (79 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.500000000000e+02, best bound 2.500000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250 Solution: 7 x [8, 80] 4 x [22, 79] 5 x [24, 78] 6 x [19, 77] 5 x [3, 76] 6 x [18, 75] 8 x [29, 74] 5 x [2, 73] 7 x [35, 72] 8 x [10, 71] 2 x [4, 70] 11 x [16, 69] 4 x [36, 68] 1 x [8, 68] 3 x [26, 67] 7 x [32, 66] 6 x [13, 65] 4 x [5, 64] 10 x [27, 63] 1 x [4, 63] 4 x [31, 62] 1 x [3, 62] 6 x [11, 61] 11 x [48, 60] 7 x [7, 59] 8 x [52, 58] 1 x [49, 57] 6 x [46, 57] 9 x [53, 56] 1 x [1, 56] 3 x [49, 55] 5 x [50, 54] 1 x [49, 51] 8 x [47, 51] 4 x [33, 45] 1 x [4, 45] 3 x [6, 44] 7 x [42, 43] 6 x [17, 41] 4 x [14, 40] 3 x [37, 39] 5 x [1, 38] 10 x [12, 34] 5 x [28, 30] 6 x [23, 25] 6 x [9, 21] 9 x [15, 20]