Build (method = -2) #dp: 363 Step-3' Graph: 44 vertices and 205 arcs (0.00s) Step-4' Graph: 26 vertices and 169 arcs (0.00s) #V4/#V3 = 0.59 #A4/#A3 = 0.82 Ready! (0.00s) Optimize a model with 46 rows, 170 columns and 465 nonzeros Presolve removed 9 rows and 12 columns Presolve time: 0.00s Presolved: 37 rows, 158 columns, 435 nonzeros Variable types: 0 continuous, 158 integer (0 binary) Found heuristic solution: objective 2000.0000000 Found heuristic solution: objective 1481.0000000 Optimize a model with 37 rows, 158 columns and 435 nonzeros Presolved: 37 rows, 158 columns, 435 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.110e+02 Factor NZ : 5.010e+02 Factor Ops : 8.003e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.40875155e+03 -1.77508144e+04 3.32e+04 2.22e-16 3.15e+02 0s 1 3.24531486e+03 -6.32341933e+03 4.85e+03 3.33e-16 5.60e+01 0s 2 1.61781922e+03 -8.51674367e+02 3.56e+02 1.11e-15 8.56e+00 0s 3 1.13902721e+03 3.57311223e+02 3.92e+01 3.47e-16 2.43e+00 0s 4 9.85799102e+02 7.23361004e+02 4.69e+00 6.18e-16 7.99e-01 0s 5 9.52179628e+02 8.35031517e+02 1.49e+00 5.79e-16 3.56e-01 0s 6 9.35312371e+02 9.01498376e+02 3.18e-01 5.74e-16 1.03e-01 0s 7 9.29405948e+02 9.19347151e+02 4.10e-02 7.68e-16 3.05e-02 0s 8 9.27814470e+02 9.27320562e+02 2.34e-03 4.89e-16 1.50e-03 0s 9 9.27729052e+02 9.27666769e+02 2.41e-04 5.77e-16 1.89e-04 0s 10 9.27714331e+02 9.27714237e+02 3.43e-11 4.44e-16 2.83e-07 0s 11 9.27714286e+02 9.27714286e+02 3.40e-11 5.77e-16 2.89e-13 0s Barrier solved model in 11 iterations and 0.00 seconds Optimal objective 9.27714286e+02 Root relaxation: objective 9.277143e+02, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 927.71429 0 17 1481.00000 927.71429 37.4% - 0s H 0 0 928.0000000 927.71429 0.03% - 0s Explored 0 nodes (55 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.280000000000e+02, best bound 9.280000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.01 seconds Objective: 928 Solution: 90 x [11] 60 x [3, 5] 17 x [5, 14] 16 x [4, 10] 60 x [4, 17] 47 x [15, 16] 125 x [15, 18] 15 x [6, 12] 125 x [12, 16] 50 x [12, 13] 17 x [2, 12, 14] 22 x [9, 19] 31 x [7, 9, 14] 66 x [9, 9] 5 x [6, 7, 17] 1 x [6, 7] 56 x [8, 13, 20] 55 x [2, 13, 20] 35 x [10, 13, 17] 23 x [1, 17, 20] 12 x [17, 20, 20]