Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:13:53 2013

Optimize a model with 806 rows, 11340 columns and 487087 nonzeros
Presolve removed 47 rows and 208 columns
Presolve time: 3.16s
Presolved: 759 rows, 11132 columns, 478156 nonzeros
Variable types: 0 continuous, 11132 integer (11132 binary)
Found heuristic solution: objective 6459.0000000
Found heuristic solution: objective 5581.0000000

Root relaxation: objective 3.893000e+03, 2600 iterations, 0.58 seconds

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

     0     0 3893.00000    0   36 5581.00000 3893.00000  30.2%     -    4s
H    0     0                    4523.0000000 3893.00000  13.9%     -    4s
H    0     0                    3901.0000000 3893.00000  0.21%     -    4s
H    0     0                    3900.0000000 3893.00000  0.18%     -    4s
     0     0     cutoff    0      3900.00000 3899.00390  0.03%     -    4s

Cutting planes:
  Clique: 5
  Zero half: 16

Explored 0 nodes (2832 simplex iterations) in 4.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.900000000000e+03, best bound 3.900000000000e+03, gap 0.0%