Build (method = -2) #dp: 2727 Step-3' Graph: 94 vertices and 299 arcs (0.01s) Step-4' Graph: 29 vertices and 169 arcs (0.01s) #V4/#V3 = 0.31 #A4/#A3 = 0.57 Ready! (0.01s) Optimize a model with 100 rows, 170 columns and 457 nonzeros Presolve removed 28 rows and 29 columns Presolve time: 0.00s Presolved: 72 rows, 141 columns, 372 nonzeros Variable types: 0 continuous, 141 integer (0 binary) Found heuristic solution: objective 494.0000000 Found heuristic solution: objective 301.0000000 Optimize a model with 72 rows, 141 columns and 372 nonzeros Presolved: 72 rows, 141 columns, 372 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.410e+02 Factor NZ : 1.025e+03 Factor Ops : 2.094e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.91999372e+03 -6.28200140e+03 3.03e+03 2.22e-16 1.20e+02 0s 1 1.53769116e+03 -2.05497474e+03 3.54e+02 4.44e-16 1.79e+01 0s 2 4.03043553e+02 -1.14688022e+02 4.91e+00 1.78e-15 1.63e+00 0s 3 2.76912857e+02 1.35723201e+02 1.77e-02 1.11e-15 4.31e-01 0s 4 2.51483458e+02 2.37668169e+02 5.86e-04 2.22e-16 4.21e-02 0s 5 2.50012014e+02 2.49980011e+02 9.78e-07 3.33e-16 9.76e-05 0s 6 2.50000000e+02 2.50000000e+02 8.24e-13 3.33e-16 1.02e-10 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 66 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 (66 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: 0.02 seconds Objective: 250 Solution: 8 x [19, 71] 1 x [7, 71] 7 x [18, 70] 7 x [9, 69] 8 x [15, 68] 5 x [11, 67] 6 x [3, 66] 10 x [6, 65] 1 x [2, 65] 3 x [7, 64] 11 x [25, 63] 2 x [2, 63] 9 x [22, 62] 5 x [4, 61] 2 x [32, 60] 5 x [20, 59] 1 x [1, 59] 6 x [26, 58] 1 x [1, 58] 5 x [35, 57] 7 x [36, 56] 2 x [35, 55] 8 x [5, 54] 1 x [39, 53] 9 x [34, 53] 2 x [40, 52] 4 x [12, 52] 2 x [39, 51] 9 x [38, 51] 6 x [42, 50] 7 x [43, 49] 1 x [44, 48] 1 x [42, 48] 9 x [45, 47] 1 x [45, 46] 8 x [44, 46] 1 x [46, 46] 1 x [40, 41] 9 x [28, 41] 4 x [14, 37] 5 x [13, 33] 1 x [1, 33] 6 x [27, 32] 1 x [32, 32] 5 x [23, 31] 1 x [1, 31] 5 x [24, 30] 1 x [2, 30] 8 x [8, 29] 10 x [16, 21] 11 x [10, 17] 1 x [2, 16]