Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:14 2013

Optimize a model with 15678 rows, 15288 columns and 60918 nonzeros
Presolve removed 39 rows and 0 columns
Presolve time: 0.07s
Presolved: 15639 rows, 15288 columns, 60879 nonzeros
Variable types: 15249 continuous, 39 integer (39 binary)

Root relaxation: objective 3.421061e+04, 2137 iterations, 0.41 seconds

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

     0     0 34210.6146    0   31          - 34210.6146     -      -    0s
H    0     0                    40140.000000 34210.6146  14.8%     -    0s
     0     0 38513.8802    0    1 40140.0000 38513.8802  4.05%     -    1s
H    0     0                    38944.046875 38513.8802  1.10%     -    1s
H    0     0                    38729.000000 38513.8802  0.56%     -    1s
H    0     0                    38623.000000 38513.8802  0.28%     -    1s
     0     2 38524.0000    0    1 38623.0000 38524.0000  0.26%     -    1s

Cutting planes:
  Gomory: 1
  Implied bound: 29

Explored 3 nodes (3117 simplex iterations) in 1.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.862300000000e+04, best bound 3.862300000000e+04, gap 0.0%