Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:55:13 2012

Optimize a model with 6485 rows, 2256 columns and 21477 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.10s
Presolved: 6483 rows, 2254 columns, 21201 nonzeros
Variable types: 0 continuous, 2254 integer (2254 binary)
Found heuristic solution: objective 47.0000000

Root relaxation: objective 2.000000e+00, 1798 iterations, 0.05 seconds

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

     0     0    2.00000    0   94   47.00000    2.00000  95.7%     -    0s
H    0     0                      43.0000000    2.00000  95.3%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
     0     0    2.66667    0 1285    4.00000    2.66667  33.3%     -    0s
     0     0    2.66667    0  122    4.00000    2.66667  33.3%     -    2s
     0     2    2.66667    0  118    4.00000    2.66667  33.3%     -    3s

Cutting planes:
  Clique: 45
  Zero half: 8

Explored 27 nodes (26553 simplex iterations) in 4.08 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%