Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:01:33 2013 Optimize a model with 5 rows, 500 columns and 2500 nonzeros Presolve time: 0.01s Presolved: 5 rows, 500 columns, 2500 nonzeros Variable types: 0 continuous, 500 integer (500 binary) Found heuristic solution: objective 280556.00000 Root relaxation: objective 2.998786e+05, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 299878.635 0 5 280556.000 299878.635 6.89% - 0s H 0 0 299612.00000 299878.635 0.09% - 0s 0 0 299876.975 0 8 299612.000 299876.975 0.09% - 0s 0 0 299876.975 0 5 299612.000 299876.975 0.09% - 0s 0 0 299876.975 0 8 299612.000 299876.975 0.09% - 0s H 0 0 299683.00000 299876.975 0.06% - 0s 0 2 299876.349 0 8 299683.000 299876.349 0.06% - 0s H 5 5 299694.00000 299874.002 0.06% 2.6 0s H 263 205 299737.00000 299873.400 0.05% 2.1 0s H 8707 5594 299775.00000 299862.920 0.03% 2.2 0s H43957 23176 299788.00000 299851.929 0.02% 2.3 3s 74417 35083 299830.069 68 5 299788.000 299851.929 0.02% 2.2 5s H116619 45017 299796.00000 299847.915 0.02% 2.3 7s 173604 71443 299835.722 64 5 299796.000 299842.505 0.02% 2.3 10s 274958 113956 299817.136 75 5 299796.000 299836.894 0.01% 2.3 15s 378237 146802 299815.275 90 5 299796.000 299833.031 0.01% 2.3 20s 483932 172773 299814.418 74 5 299796.000 299829.974 0.01% 2.3 25s 589104 190963 299813.247 59 5 299796.000 299827.406 0.01% 2.3 30s Cutting planes: Gomory: 6 Cover: 1 MIR: 2 Explored 651243 nodes (1519698 simplex iterations) in 32.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.997960000000e+05, best bound 2.998259795615e+05, gap 0.0100%