Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:17:02 2012

Optimize a model with 4367 rows, 702 columns and 13674 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 4391 rows, 700 columns, 21439 nonzeros
Variable types: 0 continuous, 700 integer (700 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 4.206897e+00, 5229 iterations, 0.46 seconds

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

     0     0    4.20690    0  368   26.00000    4.20690  83.8%     -    1s
     0     0    6.00000    0   77   26.00000    6.00000  76.9%     -    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   16    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   18    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   65    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   18    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   20    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   24    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   20    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   51    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   24    7.00000    6.00000  14.3%     -    1s
     0     2    6.00000    0   24    7.00000    6.00000  14.3%     -    2s

Cutting planes:
  Zero half: 18

Explored 46 nodes (16598 simplex iterations) in 2.13 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%