Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:47:37 2013

Optimize a model with 3682 rows, 784 columns and 11368 nonzeros
Presolve removed 466 rows and 392 columns
Presolve time: 0.02s
Presolved: 3216 rows, 392 columns, 10073 nonzeros
Variable types: 17 continuous, 375 integer (375 binary)
Found heuristic solution: objective 12818.000000

Root relaxation: objective 8.210667e+03, 2836 iterations, 0.07 seconds

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

     0     0 8210.66667    0   12 12818.0000 8210.66667  35.9%     -    0s
H    0     0                    8223.0000000 8210.66667  0.15%     -    0s
H    0     0                    8221.0000000 8210.66667  0.13%     -    0s
     0     0 8211.77519    0   23 8221.00000 8211.77519  0.11%     -    0s
     0     0 8211.77519    0    8 8221.00000 8211.77519  0.11%     -    0s
H    0     0                    8220.0000000 8211.77519  0.10%     -    0s
     0     0 8211.77519    0   16 8220.00000 8211.77519  0.10%     -    0s
H    0     0                    8219.0000000 8211.77519  0.09%     -    0s
     0     0 8211.84644    0   22 8219.00000 8211.84644  0.09%     -    0s
H    0     0                    8217.0000000 8211.84644  0.06%     -    0s
     0     0 8212.01600    0   27 8217.00000 8212.01600  0.06%     -    0s
     0     2 8212.08973    0   27 8217.00000 8212.08973  0.06%     -    0s
H    1     2                    8216.0000000 8212.08973  0.05%   0.0    0s
H   16     8                    8215.0000000 8212.57756  0.03%  21.6    0s

Cutting planes:
  Gomory: 7
  Cover: 7
  Implied bound: 2
  MIR: 30
  Zero half: 3

Explored 87 nodes (3983 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.215000000000e+03, best bound 8.215000000000e+03, gap 0.0%