Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:10:42 2012

Optimize a model with 3725 rows, 650 columns and 11725 nonzeros
Presolve time: 0.05s
Presolved: 3725 rows, 650 columns, 19584 nonzeros
Variable types: 0 continuous, 650 integer (650 binary)

Root relaxation: objective 2.000000e+00, 645 iterations, 0.02 seconds

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

     0     0    2.00000    0   50          -    2.00000     -      -    0s
H    0     0                       6.0000000    2.00000  66.7%     -    0s
     0     0    4.00000    0   99    6.00000    4.00000  33.3%     -    0s
     0     0    5.00000    0  116    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0  168    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   66    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   90    6.00000    5.00000  16.7%     -    2s
     0     0    5.00000    0   95    6.00000    5.00000  16.7%     -    2s
     0     0    5.00000    0   74    6.00000    5.00000  16.7%     -    3s
     0     0    5.00000    0   81    6.00000    5.00000  16.7%     -    4s
     0     0    5.00000    0   88    6.00000    5.00000  16.7%     -    5s
     0     0    5.00000    0   87    6.00000    5.00000  16.7%     -    5s
     0     2    5.00000    0   60    6.00000    5.00000  16.7%     -    6s

Explored 5 nodes (36553 simplex iterations) in 7.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%