Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:54 2013

Optimize a model with 680 rows, 4440 columns and 9620 nonzeros
Presolve removed 80 rows and 60 columns
Presolve time: 0.03s
Presolved: 600 rows, 4380 columns, 9300 nonzeros
Variable types: 4200 continuous, 180 integer (180 binary)

Root relaxation: objective 3.709539e+04, 509 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    4          - 37095.3933     -      -    0s
     0     0 37141.5597    0    2          - 37141.5597     -      -    0s
     0     0 37155.2509    0    2          - 37155.2509     -      -    0s
H    0     0                    37258.678632 37155.2509  0.28%     -    0s
     0     2 37157.6061    0    2 37258.6786 37157.6061  0.27%     -    0s
*    7     3               5    37255.478772 37230.0719  0.07%   9.1    0s
*   10     2               6    37252.636188 37230.0719  0.06%   8.2    0s

Cutting planes:
  Gomory: 4

Explored 15 nodes (705 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.725263618801e+04, best bound 3.725263618801e+04, gap 0.0%