Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:16:11 2013

Optimize a model with 520 rows, 4460 columns and 9500 nonzeros
Presolve removed 40 rows and 40 columns
Presolve time: 0.02s
Presolved: 480 rows, 4420 columns, 9360 nonzeros
Variable types: 4240 continuous, 180 integer (180 binary)

Root relaxation: objective 3.600389e+04, 461 iterations, 0.01 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 36003.8892    0    2          - 36003.8892     -      -    0s
     0     0 36046.6729    0    2          - 36046.6729     -      -    0s
     0     0 36127.3938    0    2          - 36127.3938     -      -    0s
     0     0 36131.0151    0    2          - 36131.0151     -      -    0s
     0     0 36131.0151    0    2          - 36131.0151     -      -    0s
     0     0 36131.0151    0    2          - 36131.0151     -      -    0s
H    0     0                    43183.407730 36131.0151  16.3%     -    0s
     0     2 36131.5775    0    2 43183.4077 36131.5775  16.3%     -    0s
*    6     4               5    36202.260249 36202.2602   0.0%  13.7    0s

Cutting planes:
  Gomory: 3
  Flow cover: 5

Explored 7 nodes (637 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.620226024891e+04, best bound 3.620226024891e+04, gap 0.0%