Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:35 2013

Optimize a model with 3094 rows, 2924 columns and 11594 nonzeros
Presolve removed 17 rows and 0 columns
Presolve time: 0.01s
Presolved: 3077 rows, 2924 columns, 11577 nonzeros
Variable types: 2907 continuous, 17 integer (17 binary)

Root relaxation: objective 2.059618e+04, 441 iterations, 0.01 seconds

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

     0     0 20596.1776    0   14          - 20596.1776     -      -    0s
H    0     0                    21502.000000 20596.1776  4.21%     -    0s
*    0     0               0    21100.000000 21100.0000   0.0%     -    0s

Cutting planes:
  Gomory: 10
  Implied bound: 13

Explored 0 nodes (519 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.110000000000e+04, best bound 2.110000000000e+04, gap 0.0%