Build (method = -2) #dp: 59 Step-3' Graph: 19 vertices and 50 arcs (0.00s) Step-4' Graph: 9 vertices and 30 arcs (0.00s) #V4/#V3 = 0.47 #A4/#A3 = 0.60 Ready! (0.00s) Optimize a model with 19 rows, 31 columns and 79 nonzeros Presolve removed 8 rows and 8 columns Presolve time: 0.00s Presolved: 11 rows, 23 columns, 57 nonzeros Variable types: 0 continuous, 23 integer (0 binary) Found heuristic solution: objective 574.0000000 Found heuristic solution: objective 547.0000000 Optimize a model with 11 rows, 23 columns and 57 nonzeros Presolved: 11 rows, 23 columns, 57 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.200e+01 Factor NZ : 6.600e+01 Factor Ops : 5.060e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.44634835e+03 -1.76156942e+03 9.65e+02 2.22e-16 1.52e+02 0s 1 7.11500408e+02 -1.22289161e+02 2.58e+01 8.88e-16 1.79e+01 0s 2 6.05557144e+02 2.37629970e+02 3.96e+00 9.99e-16 7.45e+00 0s 3 5.12959068e+02 4.53947935e+02 6.72e-05 4.02e-16 1.18e+00 0s 4 4.85410691e+02 4.78635049e+02 1.55e-06 6.54e-16 1.36e-01 0s 5 4.84346697e+02 4.84324795e+02 1.66e-09 5.51e-16 4.38e-04 0s 6 4.84333333e+02 4.84333333e+02 8.53e-14 3.67e-16 4.60e-10 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 4.84333333e+02 Root relaxation: objective 4.843333e+02, 8 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 484.33333 0 7 547.00000 484.33333 11.5% - 0s H 0 0 485.0000000 484.33333 0.14% - 0s Explored 0 nodes (8 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.850000000000e+02, best bound 4.850000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 485 Solution: 32 x [1, 9] 22 x [2, 9] 8 x [3, 8] 8 x [3, 9] 171 x [3, 10] 96 x [4, 6] 31 x [4, 9] 68 x [5, 7] 17 x [5, 8] 1 x [7] 31 x [7, 9, 10]