Build (method = -2) #dp: 191 Step-3' Graph: 32 vertices and 87 arcs (0.00s) Step-4' Graph: 5 vertices and 33 arcs (0.00s) #V4/#V3 = 0.16 #A4/#A3 = 0.38 Ready! (0.00s) Optimize a model with 15 rows, 34 columns and 98 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 13 rows, 32 columns, 94 nonzeros Variable types: 0 continuous, 32 integer (0 binary) Found heuristic solution: objective 999.0000000 Found heuristic solution: objective 958.0000000 Optimize a model with 13 rows, 32 columns and 94 nonzeros Presolved: 13 rows, 32 columns, 94 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.300e+01 Factor NZ : 9.100e+01 Factor Ops : 8.190e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.15520107e+03 -2.64188948e+03 2.60e+02 0.00e+00 1.44e+02 0s 1 7.19018123e+02 -8.50247699e+02 1.40e+01 4.44e-16 2.39e+01 0s 2 3.86690498e+02 1.85559276e+02 1.43e-02 5.72e-15 2.73e+00 0s 3 3.34520039e+02 3.09277106e+02 6.61e-05 6.66e-16 3.41e-01 0s 4 3.33405825e+02 3.32982698e+02 7.80e-14 2.03e-16 5.72e-03 0s 5 3.33333337e+02 3.33333328e+02 1.32e-13 3.33e-16 1.16e-07 0s 6 3.33333333e+02 3.33333333e+02 5.93e-14 2.22e-16 1.20e-13 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 3.33333333e+02 Root relaxation: objective 3.333333e+02, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 333.33333 0 4 958.00000 333.33333 65.2% - 0s H 0 0 334.0000000 333.33333 0.20% - 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 3.340000000000e+02, best bound 3.340000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 334 Solution: 1 x [9, 10] 6 x [6, 9, 10] 27 x [2, 3, 10] 6 x [4, 5, 10] 2 x [2, 4, 10] 107 x [1, 4, 9] 117 x [3, 6, 8] 3 x [2, 6, 6] 47 x [2, 7, 8] 16 x [2, 4, 7] 1 x [2, 4, 4] 1 x [4, 7]