Build (method = -2) #dp: 3542 Step-3' Graph: 114 vertices and 359 arcs (0.01s) Step-4' Graph: 29 vertices and 189 arcs (0.01s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.01s) Optimize a model with 110 rows, 190 columns and 517 nonzeros Presolve removed 28 rows and 29 columns Presolve time: 0.00s Presolved: 82 rows, 161 columns, 432 nonzeros Variable types: 0 continuous, 161 integer (0 binary) Found heuristic solution: objective 497.0000000 Found heuristic solution: objective 313.0000000 Optimize a model with 82 rows, 161 columns and 432 nonzeros Presolve removed 1 rows and 1 columns Presolved: 81 rows, 160 columns, 430 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 6.85770524e+03 -3.89290449e+03 2.53e+03 2.22e-16 7.51e+01 0s 1 1.35563002e+03 -1.41255455e+03 2.69e+02 3.33e-16 1.12e+01 0s 2 3.40638848e+02 1.38137387e+01 2.31e-13 2.89e-15 8.72e-01 0s 3 2.61568983e+02 1.99551041e+02 1.08e-12 4.44e-16 1.65e-01 0s 4 2.50190474e+02 2.48496950e+02 3.65e-13 2.22e-16 4.52e-03 0s 5 2.50000009e+02 2.49999977e+02 3.32e-13 1.13e-16 8.65e-08 0s 6 2.50000000e+02 2.50000000e+02 4.29e-13 3.33e-16 8.66e-14 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 0 250.00000 0 4 313.00000 250.00000 20.1% - 0s H 0 0 251.0000000 250.00000 0.40% - 0s H 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: 8 x [30, 81] 5 x [22, 80] 6 x [21, 79] 7 x [34, 78] 10 x [11, 77] 4 x [33, 76] 6 x [16, 75] 5 x [20, 74] 3 x [31, 73] 1 x [16, 73] 6 x [10, 72] 11 x [24, 71] 6 x [4, 70] 3 x [3, 69] 1 x [2, 69] 5 x [42, 68] 2 x [12, 67] 7 x [18, 66] 6 x [3, 65] 9 x [26, 64] 13 x [13, 63] 4 x [49, 62] 5 x [49, 61] 8 x [50, 60] 3 x [51, 59] 2 x [4, 59] 6 x [54, 58] 5 x [55, 57] 1 x [55, 56] 1 x [2, 56] 1 x [56, 56] 2 x [55, 55] 6 x [52, 53] 2 x [46, 50] 2 x [6, 50] 2 x [10, 48] 5 x [5, 47] 5 x [7, 45] 2 x [18, 44] 2 x [13, 44] 2 x [32, 43] 2 x [17, 43] 5 x [8, 41] 6 x [9, 40] 7 x [19, 39] 6 x [12, 38] 7 x [35, 37] 4 x [9, 36] 8 x [27, 29] 5 x [1, 28] 6 x [23, 25] 4 x [14, 15]