Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:27:20 2013

Optimize a model with 2047 rows, 529 columns and 6348 nonzeros
Presolve removed 323 rows and 264 columns
Presolve time: 0.02s
Presolved: 1724 rows, 265 columns, 5472 nonzeros
Variable types: 15 continuous, 250 integer (250 binary)
Found heuristic solution: objective 11379.000000

Root relaxation: objective 8.522811e+03, 1416 iterations, 0.02 seconds

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

     0     0 8522.81081    0    9 11379.0000 8522.81081  25.1%     -    0s
H    0     0                    8535.0000000 8522.81081  0.14%     -    0s
     0     0 8523.17525    0   20 8535.00000 8523.17525  0.14%     -    0s
     0     0 8523.17525    0    7 8535.00000 8523.17525  0.14%     -    0s
     0     0 8523.17963    0   18 8535.00000 8523.17963  0.14%     -    0s
     0     1 8523.20881    0   18 8535.00000 8523.20881  0.14%     -    0s
H    1     1                    8533.0000000 8523.20881  0.11%   2.0    0s

Cutting planes:
  Gomory: 7
  Cover: 1
  MIR: 11
  Zero half: 7

Explored 16 nodes (1838 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.533000000000e+03, best bound 8.533000000000e+03, gap 0.0%