Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:24:07 2013

Optimize a model with 6017 rows, 1089 columns and 18513 nonzeros
Presolve removed 631 rows and 541 columns
Presolve time: 0.03s
Presolved: 5386 rows, 548 columns, 16848 nonzeros
Variable types: 23 continuous, 525 integer (525 binary)
Found heuristic solution: objective 20531.000000
Found heuristic solution: objective 18437.000000

Root relaxation: objective 1.331700e+04, 5291 iterations, 0.19 seconds

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

     0     0 13317.0000    0   13 18437.0000 13317.0000  27.8%     -    0s
H    0     0                    13329.000000 13317.0000  0.09%     -    0s
H    0     0                    13328.000000 13317.0000  0.08%     -    0s
H    0     0                    13327.000000 13317.0000  0.08%     -    0s
     0     0 13317.0395    0   25 13327.0000 13317.0395  0.07%     -    0s
     0     0 13317.0395    0    8 13327.0000 13317.0395  0.07%     -    0s
H    0     0                    13326.000000 13317.0395  0.07%     -    0s
     0     0 13317.0430    0   24 13326.0000 13317.0430  0.07%     -    0s
H    0     0                    13325.000000 13317.0430  0.06%     -    0s
     0     1 13317.0497    0   21 13325.0000 13317.0497  0.06%     -    0s
H    7     4                    13324.000000 13319.0746  0.04%   1.3    0s

Cutting planes:
  Gomory: 4
  Cover: 13
  Implied bound: 1
  MIR: 18
  GUB cover: 1
  Zero half: 15

Explored 104 nodes (6927 simplex iterations) in 0.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.332400000000e+04, best bound 1.332300000000e+04, gap 0.0075%