Build (method = -2) #dp: 271 Step-3' Graph: 50 vertices and 182 arcs (0.00s) Step-4' Graph: 37 vertices and 156 arcs (0.00s) #V4/#V3 = 0.74 #A4/#A3 = 0.86 Ready! (0.00s) Optimize a model with 47 rows, 157 columns and 404 nonzeros Presolve removed 12 rows and 23 columns Presolve time: 0.00s Presolved: 35 rows, 134 columns, 358 nonzeros Variable types: 0 continuous, 134 integer (5 binary) Found heuristic solution: objective 83.0000000 Found heuristic solution: objective 63.0000000 Optimize a model with 35 rows, 134 columns and 358 nonzeros Presolved: 35 rows, 134 columns, 358 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.010e+02 Factor NZ : 4.730e+02 Factor Ops : 7.685e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.94705121e+02 -2.24411827e+03 1.13e+03 2.22e-16 4.22e+01 0s 1 1.59493104e+02 -9.42062523e+02 1.79e+02 7.77e-16 7.97e+00 0s 2 8.48706267e+01 -1.71043235e+02 8.20e+00 8.88e-16 1.03e+00 0s 3 5.99528307e+01 -2.09615002e+01 5.84e-02 5.55e-16 2.95e-01 0s 4 4.57900578e+01 9.05608792e+00 1.02e-02 5.55e-16 1.34e-01 0s 5 4.12119948e+01 2.57748874e+01 4.38e-03 2.06e-16 5.61e-02 0s 6 3.85497674e+01 3.26280965e+01 2.68e-04 2.22e-16 2.15e-02 0s 7 3.80902683e+01 3.78304807e+01 1.64e-05 3.43e-16 9.45e-04 0s 8 3.80000937e+01 3.79998332e+01 7.18e-13 4.44e-16 9.47e-07 0s 9 3.80000000e+01 3.80000000e+01 9.24e-14 2.30e-16 9.48e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 3.80000000e+01 Root relaxation: objective 3.800000e+01, 69 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 38.0000000 38.00000 0.0% - 0s Explored 0 nodes (69 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 38 Solution: 2 x [10] 3 x [1, 9, 10] 7 x [1, 3, 10] 3 x [7, 10] 1 x [2] 2 x [4] 6 x [4, 6] 9 x [4, 7, 8] 1 x [3, 4] 1 x [3, 4, 5, 5, 5, 5] 3 x [1, 1, 1, 4]