Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:17:01 2013

Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros
Presolve removed 905 rows and 524 columns
Presolve time: 0.04s
Presolved: 4583 rows, 500 columns, 14269 nonzeros
Variable types: 18 continuous, 482 integer (482 binary)
Found heuristic solution: objective 19574.000000
Found heuristic solution: objective 16893.000000

Root relaxation: objective 1.304109e+04, 2052 iterations, 0.06 seconds

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

     0     0 13041.0870    0   13 16893.0000 13041.0870  22.8%     -    0s
H    0     0                    13068.000000 13041.0870  0.21%     -    0s
H    0     0                    13057.000000 13041.0870  0.12%     -    0s
H    0     0                    13051.000000 13041.0870  0.08%     -    0s
     0     0 13041.0870    0   12 13051.0000 13041.0870  0.08%     -    0s
     0     0 13041.0870    0   11 13051.0000 13041.0870  0.08%     -    0s
     0     0 13041.0870    0   18 13051.0000 13041.0870  0.08%     -    0s
H    0     0                    13048.000000 13041.0870  0.05%     -    0s
     0     2 13041.1035    0   14 13048.0000 13041.1035  0.05%     -    0s
H    3     3                    13047.000000 13041.1035  0.05%  10.0    0s
H  315    63                    13046.000000 13043.2584  0.02%   8.3    0s

Cutting planes:
  Cover: 1
  Implied bound: 1
  MIR: 4

Explored 815 nodes (7595 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.304600000000e+04, best bound 1.304500000000e+04, gap 0.0077%