Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:51:05 2012

Optimize a model with 6449 rows, 930 columns and 20128 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 6447 rows, 928 columns, 23562 nonzeros
Variable types: 0 continuous, 928 integer (928 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.513514e+00, 6359 iterations, 0.41 seconds

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

     0     0    3.51351    0  736   30.00000    3.51351  88.3%     -    1s
H    0     0                      25.0000000    3.51351  85.9%     -    1s
     0     0    6.00000    0  125   25.00000    6.00000  76.0%     -    2s
H    0     0                      14.0000000    6.00000  57.1%     -    2s
H    0     0                       7.0000000    6.00000  14.3%     -    2s
     0     0    6.00000    0   70    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   39    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   68    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   88    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  103    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   50    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   56    7.00000    6.00000  14.3%     -    3s
     0     0    6.00000    0   56    7.00000    6.00000  14.3%     -    3s
     0     2    6.00000    0   40    7.00000    6.00000  14.3%     -    3s

Cutting planes:
  Clique: 13
  Zero half: 5

Explored 23 nodes (20718 simplex iterations) in 3.44 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%