Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:32 2013

Optimize a model with 2752 rows, 2592 columns and 10272 nonzeros
Presolve removed 16 rows and 0 columns
Presolve time: 0.01s
Presolved: 2736 rows, 2592 columns, 10256 nonzeros
Variable types: 2576 continuous, 16 integer (16 binary)

Root relaxation: objective 2.053150e+04, 483 iterations, 0.02 seconds

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

     0     0 20531.5019    0    8          - 20531.5019     -      -    0s
H    0     0                    21408.000000 20531.5019  4.09%     -    0s
*    0     0               0    21305.000000 21305.0000   0.0%     -    0s

Cutting planes:
  Gomory: 6
  Implied bound: 8

Explored 0 nodes (564 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.130500000000e+04, best bound 2.130500000000e+04, gap 0.0%