Gurobi 5.0.1 (linux64) logging started Fri Nov 16 07:49:15 2012

Optimize a model with 11097 rows, 3906 columns and 36888 nonzeros
Presolve removed 3 rows and 64 columns
Presolve time: 0.30s
Presolved: 11094 rows, 3842 columns, 36468 nonzeros
Variable types: 0 continuous, 3842 integer (3842 binary)
Found heuristic solution: objective 62.0000000

Root relaxation: objective 2.000000e+00, 2789 iterations, 0.09 seconds

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

     0     0    2.00000    0  122   62.00000    2.00000  96.8%     -    0s
H    0     0                      61.0000000    2.00000  96.7%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    3.00000    0  788    5.00000    3.00000  40.0%     -    3s
     0     0    3.00000    0 2488    5.00000    3.00000  40.0%     -    4s
     0     0    3.00000    0 1674    5.00000    3.00000  40.0%     -   12s
H    0     0                       4.0000000    3.00000  25.0%     -   19s
     0     2    3.00000    0   92    4.00000    3.00000  25.0%     -   19s

Cutting planes:
  Clique: 14
  Zero half: 2

Explored 1 nodes (58842 simplex iterations) in 20.96 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%