Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:27 2013

Optimize a model with 11968 rows, 11628 columns and 46308 nonzeros
Presolve removed 34 rows and 0 columns
Presolve time: 0.05s
Presolved: 11934 rows, 11628 columns, 46274 nonzeros
Variable types: 11594 continuous, 34 integer (34 binary)

Root relaxation: objective 4.153498e+04, 2972 iterations, 0.58 seconds

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

     0     0 41534.9824    0   29          - 41534.9824     -      -    0s
H    0     0                    48163.000000 41534.9824  13.8%     -    0s
*    0     0               0    47087.000000 47087.0000   0.0%     -    1s

Cutting planes:
  Gomory: 20
  Implied bound: 28

Explored 0 nodes (3823 simplex iterations) in 1.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.708700000000e+04, best bound 4.708700000000e+04, gap 0.0%