Build (method = -2) #dp: 886 Step-3' Graph: 12 vertices and 256 arcs (0.00s) Step-4' Graph: 12 vertices and 256 arcs (0.00s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.00s) Optimize a model with 92 rows, 257 columns and 753 nonzeros Presolve removed 56 rows and 95 columns Presolve time: 0.00s Presolved: 36 rows, 162 columns, 464 nonzeros Variable types: 0 continuous, 162 integer (16 binary) Found heuristic solution: objective 419.0000000 Found heuristic solution: objective 390.0000000 Optimize a model with 36 rows, 162 columns and 464 nonzeros Presolve removed 0 rows and 1 columns Presolved: 36 rows, 161 columns, 462 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.820e+02 Factor NZ : 6.390e+02 Factor Ops : 1.499e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.46796759e+03 -2.04568804e+03 4.28e+02 7.31e-02 3.00e+01 0s 1 5.97857018e+02 -4.78050927e+02 3.84e+01 6.66e-16 4.53e+00 0s 2 3.92709369e+02 1.19823695e+02 2.45e+00 1.50e-14 8.21e-01 0s 3 3.05616467e+02 2.31199130e+02 4.95e-02 4.22e-15 2.15e-01 0s 4 2.85444012e+02 2.74279297e+02 2.03e-03 3.33e-16 3.22e-02 0s 5 2.82478809e+02 2.80061554e+02 5.65e-04 2.22e-16 6.97e-03 0s 6 2.82032872e+02 2.81668570e+02 9.81e-05 2.97e-16 1.05e-03 0s 7 2.81901799e+02 2.81895910e+02 1.14e-13 2.22e-16 1.70e-05 0s 8 2.81900002e+02 2.81899996e+02 2.66e-14 2.53e-16 1.70e-08 0s 9 2.81900000e+02 2.81900000e+02 2.53e-14 2.43e-16 2.02e-14 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.81900000e+02 Root relaxation: objective 2.819000e+02, 95 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 281.90000 0 9 390.00000 281.90000 27.7% - 0s H 0 0 283.0000000 281.90000 0.39% - 0s H 0 0 282.0000000 281.90000 0.04% - 0s Explored 0 nodes (130 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.820000000000e+02, best bound 2.820000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 282 Solution: 9 x [79] 4 x [75] 2 x [58] 1 x [50] 3 x [45] 5 x [43] 9 x [42] 5 x [40] 3 x [38] 10 x [37] 7 x [36] 5 x [26] 8 x [22] 5 x [17] 9 x [9] 2 x [46, 70] 6 x [34, 64] 8 x [62] 6 x [33, 59] 5 x [57] 1 x [4, 57] 9 x [56] 7 x [53, 65] 10 x [39] 3 x [32, 33] 1 x [4, 15] 4 x [10, 34] 1 x [4, 10] 4 x [1, 21] 4 x [74, 77] 1 x [74, 76] 10 x [24, 66] 1 x [16, 48] 6 x [14, 31] 10 x [68, 78] 9 x [60, 69] 6 x [30, 63] 4 x [13, 55] 7 x [41, 51] 5 x [13, 25] 1 x [11, 51] 1 x [11, 13] 1 x [6, 30] 1 x [3, 6] 6 x [2, 20] 2 x [67, 80] 2 x [35, 54] 8 x [28, 54] 7 x [23, 61] 2 x [19, 23] 5 x [8, 44] 2 x [5, 19] 9 x [71, 73] 1 x [52, 71] 1 x [7, 27] 5 x [7, 18] 2 x [3, 12, 48] 1 x [3, 44, 72] 3 x [35, 49, 72] 2 x [19, 29, 77] 3 x [3, 20, 29] 1 x [3, 29, 47] 1 x [3, 3, 19]