Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:51:08 2012

Optimize a model with 6539 rows, 930 columns and 20398 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 6537 rows, 928 columns, 23322 nonzeros
Variable types: 0 continuous, 928 integer (928 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.473684e+00, 6486 iterations, 0.43 seconds

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

     0     0    3.47368    0  793   30.00000    3.47368  88.4%     -    1s
H    0     0                      29.0000000    3.47368  88.0%     -    1s
     0     0    6.00000    0  120   29.00000    6.00000  79.3%     -    1s
H    0     0                      23.0000000    6.00000  73.9%     -    1s
H    0     0                      19.0000000    6.00000  68.4%     -    1s
H    0     0                       9.0000000    6.00000  33.3%     -    1s
     0     0    6.00000    0  135    9.00000    6.00000  33.3%     -    1s
H    0     0                       8.0000000    6.00000  25.0%     -    1s
     0     0    6.00000    0  117    8.00000    6.00000  25.0%     -    2s
H    0     0                       7.0000000    6.00000  14.3%     -    2s
     0     0    6.00000    0  113    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  111    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  115    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  112    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0  110    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0  111    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0  104    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0  110    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0  109    7.00000    6.00000  14.3%     -    3s
     0     2    6.00000    0  106    7.00000    6.00000  14.3%     -    3s

Cutting planes:
  Clique: 27
  Zero half: 5

Explored 9 nodes (20631 simplex iterations) in 3.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%