Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:43:52 2013

Optimize a model with 7175 rows, 1225 columns and 22050 nonzeros
Presolve removed 806 rows and 619 columns
Presolve time: 0.05s
Presolved: 6369 rows, 606 columns, 19651 nonzeros
Variable types: 17 continuous, 589 integer (589 binary)
Found heuristic solution: objective 28484.000000

Root relaxation: objective 2.231920e+04, 4501 iterations, 0.17 seconds

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

     0     0 22319.2000    0    9 28484.0000 22319.2000  21.6%     -    0s
H    0     0                    22324.000000 22319.2000  0.02%     -    0s
     0     0 22320.0000    0   10 22324.0000 22320.0000  0.02%     -    0s
     0     0 22320.0000    0   11 22324.0000 22320.0000  0.02%     -    0s
     0     0 22320.0000    0   15 22324.0000 22320.0000  0.02%     -    0s
     0     2 22320.0000    0   15 22324.0000 22320.0000  0.02%     -    0s
H  111    16                    22322.000000 22320.0000  0.01%  14.2    0s

Cutting planes:
  Gomory: 5
  Cover: 9
  Clique: 1
  MIR: 17
  GUB cover: 1
  Zero half: 1

Explored 111 nodes (6498 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.232200000000e+04, best bound 2.232000000000e+04, gap 0.0090%