Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:53 2013

Optimize a model with 480 rows, 4560 columns and 11180 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 460 rows, 4540 columns, 10760 nonzeros
Variable types: 4440 continuous, 100 integer (100 binary)

Root relaxation: objective 3.573401e+04, 478 iterations, 0.01 seconds

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

     0     0 35734.0139    0    9          - 35734.0139     -      -    0s
     0     0 35750.4939    0   11          - 35750.4939     -      -    0s
     0     0 35750.6144    0   11          - 35750.6144     -      -    0s
     0     0 35754.1033    0   10          - 35754.1033     -      -    0s
     0     0 35754.1033    0   10          - 35754.1033     -      -    0s
     0     0 35754.8162    0   10          - 35754.8162     -      -    0s
     0     0 35754.8494    0   10          - 35754.8494     -      -    0s
     0     0 35754.8717    0   10          - 35754.8717     -      -    0s
     0     0 35754.8717    0   10          - 35754.8717     -      -    0s
H    0     0                    36208.602569 35754.8717  1.25%     -    0s
     0     1 35848.4262    0    6 36208.6026 35848.4262  0.99%     -    0s
*    9     4               9    36180.490190 36019.2742  0.45%  23.6    0s
*   16     1               8    36173.352826 36173.3528   0.0%  16.2    0s

Cutting planes:
  Gomory: 1
  Flow cover: 13

Explored 17 nodes (988 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.617335282586e+04, best bound 3.617335282586e+04, gap 0.0%