Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:51:27 2013

Optimize a model with 10700 rows, 1600 columns and 32800 nonzeros
Presolve removed 1785 rows and 832 columns
Presolve time: 0.07s
Presolved: 8915 rows, 768 columns, 27299 nonzeros
Variable types: 15 continuous, 753 integer (753 binary)
Found heuristic solution: objective 35486.000000

Root relaxation: objective 2.715383e+04, 2928 iterations, 0.12 seconds

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

     0     0 27153.8268    0    8 35486.0000 27153.8268  23.5%     -    0s
H    0     0                    27167.000000 27153.8268  0.05%     -    0s
H    0     0                    27161.000000 27153.8268  0.03%     -    0s
     0     0 27155.4638    0   21 27161.0000 27155.4638  0.02%     -    0s
     0     0 27155.4638    0    9 27161.0000 27155.4638  0.02%     -    0s
     0     0 27155.4638    0   17 27161.0000 27155.4638  0.02%     -    0s
     0     1 27155.4811    0   17 27161.0000 27155.4811  0.02%     -    0s

Cutting planes:
  Gomory: 8
  Cover: 2
  Implied bound: 2
  MIR: 11
  GUB cover: 3
  Zero half: 6

Explored 5 nodes (3199 simplex iterations) in 0.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.716100000000e+04, best bound 2.715900000000e+04, gap 0.0074%