Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:52:30 2013

Optimize a model with 11521 rows, 1681 columns and 35301 nonzeros
Presolve removed 1524 rows and 860 columns
Presolve time: 0.05s
Presolved: 9997 rows, 821 columns, 30713 nonzeros
Variable types: 19 continuous, 802 integer (802 binary)
Found heuristic solution: objective 41168.000000

Root relaxation: objective 3.280565e+04, 4533 iterations, 0.17 seconds

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

     0     0 32805.6538    0    7 41168.0000 32805.6538  20.3%     -    0s
H    0     0                    32852.000000 32805.6538  0.14%     -    0s
H    0     0                    32832.000000 32805.6538  0.08%     -    0s
H    0     0                    32818.000000 32805.6538  0.04%     -    0s
     0     0 32807.2338    0   25 32818.0000 32807.2338  0.03%     -    0s
     0     0 32807.2338    0    7 32818.0000 32807.2338  0.03%     -    0s
     0     0 32807.9881    0   20 32818.0000 32807.9881  0.03%     -    0s
     0     2 32809.5125    0   20 32818.0000 32809.5125  0.03%     -    0s
H   56     3                    32815.000000 32812.8192  0.01%  10.4    0s

Cutting planes:
  Gomory: 6
  Cover: 1
  Implied bound: 1
  MIR: 14
  GUB cover: 1
  Zero half: 2

Explored 56 nodes (5352 simplex iterations) in 0.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.281500000000e+04, best bound 3.281300000000e+04, gap 0.0061%