Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:21:20 2013

Optimize a model with 1561 rows, 441 columns and 4851 nonzeros
Presolve removed 260 rows and 224 columns
Presolve time: 0.01s
Presolved: 1301 rows, 217 columns, 4065 nonzeros
Variable types: 9 continuous, 208 integer (208 binary)
Found heuristic solution: objective 10618.000000
Found heuristic solution: objective 9327.0000000

Root relaxation: objective 8.397567e+03, 1005 iterations, 0.02 seconds

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

     0     0 8397.56681    0    7 9327.00000 8397.56681  10.0%     -    0s
H    0     0                    8407.0000000 8397.56681  0.11%     -    0s
     0     0 8403.59071    0   10 8407.00000 8403.59071  0.04%     -    0s
     0     0 8403.59071    0    5 8407.00000 8403.59071  0.04%     -    0s
     0     0     cutoff    0      8407.00000 8406.00841  0.01%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 20
  MIR: 6
  GUB cover: 1

Explored 0 nodes (1080 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.407000000000e+03, best bound 8.407000000000e+03, gap 0.0%