Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:55 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 3.709539e+04, 473 iterations, 0.01 seconds

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

     0     0 37095.3933    0   12          - 37095.3933     -      -    0s
     0     0 37101.5364    0   11          - 37101.5364     -      -    0s
     0     0 37101.6947    0   11          - 37101.6947     -      -    0s
     0     0 37103.9602    0   11          - 37103.9602     -      -    0s
     0     0 37103.9602    0   11          - 37103.9602     -      -    0s
     0     0 37104.1066    0   13          - 37104.1066     -      -    0s
     0     0 37104.1066    0   13          - 37104.1066     -      -    0s
H    0     0                    37291.650431 37104.1066  0.50%     -    0s
     0     2 37230.4571    0    4 37291.6504 37230.4571  0.16%     -    0s
*    4     4               4    37255.973007 37247.5855  0.02%  35.8    0s
*   13     5               6    37253.378676 37247.5855  0.02%  12.3    0s

Cutting planes:
  Gomory: 3
  Flow cover: 7

Explored 18 nodes (1019 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.725337867584e+04, best bound 3.725337867584e+04, gap 0.0%