Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:51:50 2012

Optimize a model with 6539 rows, 930 columns and 20398 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.09s
Presolved: 6567 rows, 928 columns, 26430 nonzeros
Variable types: 0 continuous, 928 integer (928 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.600000e+00, 8076 iterations, 0.56 seconds

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

     0     0    3.60000    0  766   30.00000    3.60000  88.0%     -    1s
     0     0    6.00000    0  132   30.00000    6.00000  80.0%     -    1s
H    0     0                      21.0000000    6.00000  71.4%     -    1s
H    0     0                      19.0000000    6.00000  68.4%     -    1s
H    0     0                       7.0000000    6.00000  14.3%     -    1s
     0     0    6.00000    0  123    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  138    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  125    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  118    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  124    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  132    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0  114    7.00000    6.00000  14.3%     -    2s
     0     2    6.00000    0  114    7.00000    6.00000  14.3%     -    2s

Cutting planes:
  Clique: 7
  Zero half: 35

Explored 3 nodes (19645 simplex iterations) in 2.76 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%