Build (method = -2) #dp: 404 Step-3' Graph: 99 vertices and 290 arcs (0.00s) Step-4' Graph: 39 vertices and 170 arcs (0.00s) #V4/#V3 = 0.39 #A4/#A3 = 0.59 Ready! (0.00s) Optimize a model with 59 rows, 171 columns and 439 nonzeros Presolve removed 10 rows and 14 columns Presolve time: 0.00s Presolved: 49 rows, 157 columns, 403 nonzeros Variable types: 0 continuous, 157 integer (0 binary) Found heuristic solution: objective 1293.0000000 Found heuristic solution: objective 1141.0000000 Optimize a model with 49 rows, 157 columns and 403 nonzeros Presolved: 49 rows, 157 columns, 403 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.810e+02 Factor NZ : 8.470e+02 Factor Ops : 1.742e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.20859749e+03 -1.91102454e+04 1.35e+04 2.22e-16 2.86e+02 0s 1 2.35187519e+03 -6.87357420e+03 2.09e+03 3.33e-16 5.48e+01 0s 2 1.34752947e+03 -9.50816119e+02 1.22e+02 8.55e-15 7.97e+00 0s 3 1.03528825e+03 3.67702687e+02 1.47e+01 2.22e-15 2.09e+00 0s 4 9.41527630e+02 7.85561683e+02 2.13e+00 4.44e-16 4.81e-01 0s 5 9.24873097e+02 8.83446497e+02 6.00e-01 3.06e-16 1.28e-01 0s 6 9.20499988e+02 9.17291900e+02 6.27e-02 2.61e-16 9.89e-03 0s 7 9.20001432e+02 9.19997284e+02 3.13e-13 2.61e-16 1.27e-05 0s 8 9.20000001e+02 9.19999997e+02 3.69e-13 2.77e-16 1.27e-08 0s 9 9.20000000e+02 9.20000000e+02 1.84e-13 3.01e-16 1.39e-14 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 9.20000000e+02 Root relaxation: objective 9.200000e+02, 98 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 920.0000000 920.00000 0.0% - 0s Explored 0 nodes (98 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.200000000000e+02, best bound 9.200000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 920 Solution: 26 x [1] 44 x [1, 17] 119 x [1, 18] 3 x [2] 50 x [2, 18, 19] 56 x [2, 19] 44 x [2, 20] 9 x [3, 14] 32 x [4, 11] 75 x [4, 13] 76 x [4, 14] 23 x [5, 10] 65 x [6, 12, 20] 4 x [7, 9, 20] 80 x [7, 12] 23 x [8, 14, 20] 44 x [9, 11] 10 x [9, 11, 20] 11 x [9, 12] 44 x [9, 14] 21 x [10, 12, 20] 44 x [10, 14] 1 x [11, 15] 16 x [11, 15, 16]