Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:43:54 2013

Optimize a model with 7175 rows, 1225 columns and 22050 nonzeros
Presolve removed 1081 rows and 629 columns
Presolve time: 0.06s
Presolved: 6094 rows, 596 columns, 18793 nonzeros
Variable types: 16 continuous, 580 integer (580 binary)
Found heuristic solution: objective 21849.000000

Root relaxation: objective 1.657693e+04, 1899 iterations, 0.06 seconds

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

     0     0 16576.9286    0    7 21849.0000 16576.9286  24.1%     -    0s
H    0     0                    16589.000000 16576.9286  0.07%     -    0s
     0     0 16577.9124    0   21 16589.0000 16577.9124  0.07%     -    0s
     0     0 16577.9124    0    7 16589.0000 16577.9124  0.07%     -    0s
     0     0 16578.7529    0   23 16589.0000 16578.7529  0.06%     -    0s
H    0     0                    16588.000000 16578.7529  0.06%     -    0s
H    0     0                    16587.000000 16578.7529  0.05%     -    0s
     0     1 16578.7616    0   23 16587.0000 16578.7616  0.05%     -    0s
H    8     5                    16586.000000 16580.6762  0.03%   0.0    0s
H   20     8                    16585.000000 16582.5606  0.01%  16.1    0s

Cutting planes:
  Gomory: 5
  Cover: 1
  MIR: 19
  Zero half: 6

Explored 27 nodes (2445 simplex iterations) in 0.28 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.658500000000e+04, best bound 1.658500000000e+04, gap 0.0%