Build (method = -2) #dp: 177 Step-3' Graph: 29 vertices and 100 arcs (0.00s) Step-4' Graph: 21 vertices and 84 arcs (0.00s) #V4/#V3 = 0.72 #A4/#A3 = 0.84 Ready! (0.00s) Optimize a model with 31 rows, 85 columns and 226 nonzeros Presolve removed 8 rows and 12 columns Presolve time: 0.00s Presolved: 23 rows, 73 columns, 198 nonzeros Variable types: 0 continuous, 73 integer (0 binary) Found heuristic solution: objective 78.0000000 Optimize a model with 23 rows, 73 columns and 198 nonzeros Presolved: 23 rows, 73 columns, 198 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.150e+02 Factor NZ : 2.760e+02 Factor Ops : 4.324e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.00065932e+02 -5.26197026e+02 3.39e+02 1.11e-16 1.65e+01 0s 1 8.90676623e+01 -1.80152379e+02 1.79e+01 3.33e-16 2.20e+00 0s 2 7.13436675e+01 -4.80156904e+01 3.72e+00 1.39e-16 8.36e-01 0s 3 5.73154688e+01 2.89954913e+01 2.69e-01 2.22e-16 1.89e-01 0s 4 4.90617473e+01 4.48799478e+01 2.40e-02 1.11e-16 2.78e-02 0s 5 4.71963622e+01 4.65838335e+01 3.46e-03 2.22e-16 4.07e-03 0s 6 4.70010722e+01 4.69982025e+01 9.08e-06 2.22e-16 1.90e-05 0s 7 4.70000000e+01 4.70000000e+01 9.99e-12 1.42e-16 2.17e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 4.70000000e+01 Root relaxation: objective 4.700000e+01, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 47.0000000 47.00000 0.0% - 0s Explored 0 nodes (27 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 47 Solution: 4 x [3] 2 x [2] 2 x [2, 6] 10 x [2, 6, 10] 4 x [1, 2] 4 x [5, 8] 2 x [6, 8, 10] 15 x [4, 7] 2 x [7, 9] 2 x [7, 7]