Build (method = -2) #dp: 886 Step-3' Graph: 52 vertices and 169 arcs (0.00s) Step-4' Graph: 11 vertices and 87 arcs (0.00s) #V4/#V3 = 0.21 #A4/#A3 = 0.51 Ready! (0.00s) Optimize a model with 51 rows, 88 columns and 247 nonzeros Presolve removed 11 rows and 11 columns Presolve time: 0.00s Presolved: 40 rows, 77 columns, 216 nonzeros Variable types: 0 continuous, 77 integer (0 binary) Found heuristic solution: objective 2789.0000000 Found heuristic solution: objective 2338.0000000 Found heuristic solution: objective 2016.0000000 Optimize a model with 40 rows, 77 columns and 216 nonzeros Presolved: 40 rows, 77 columns, 216 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.700e+01 Factor NZ : 5.590e+02 Factor Ops : 1.092e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.76020981e+04 -1.00110382e+04 3.51e+03 2.22e-16 3.32e+02 0s 1 3.90264572e+03 -2.49988987e+03 2.39e+02 3.33e-16 4.38e+01 0s 2 1.82240978e+03 4.17152299e+02 1.60e+00 1.67e-15 7.62e+00 0s 3 1.43364008e+03 1.32520755e+03 7.49e-02 2.22e-16 5.86e-01 0s 4 1.41623614e+03 1.41505983e+03 1.48e-12 3.33e-16 6.36e-03 0s 5 1.41600000e+03 1.41600000e+03 2.84e-13 4.44e-16 1.64e-08 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 1.41600000e+03 Root relaxation: objective 1.416000e+03, 45 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1416.0000000 1416.00000 0.0% - 0s Explored 0 nodes (45 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.416000000000e+03, best bound 1.416000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 1416 Solution: 39 x [8] 65 x [17, 23] 7 x [1, 4] 87 x [16, 39] 15 x [5, 9] 22 x [9, 21] 8 x [9, 30] 1 x [11, 20] 10 x [10, 11] 5 x [14, 22] 28 x [14, 38] 11 x [13, 14] 2 x [14, 30] 76 x [31, 32] 88 x [10, 36] 75 x [35, 40] 1 x [6, 35] 2 x [35, 39] 4 x [1, 35] 87 x [7, 29] 81 x [22, 28] 66 x [15, 21] 67 x [19, 20] 10 x [2, 37] 18 x [17, 37] 1 x [7, 33] 16 x [27, 33] 7 x [32, 33] 75 x [13, 26] 70 x [6, 18] 78 x [2, 34] 88 x [12, 24] 63 x [1, 38] 77 x [3, 27] 66 x [5, 25]