Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:23 2012

Optimize a model with 1104 rows, 272 columns and 3520 nonzeros
Presolve removed 656 rows and 0 columns
Presolve time: 0.01s
Presolved: 448 rows, 272 columns, 2512 nonzeros
Variable types: 0 continuous, 272 integer (272 binary)
Found heuristic solution: objective 12.0000000

Root relaxation: objective 5.000000e+00, 491 iterations, 0.01 seconds

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

     0     0    5.00000    0   29   12.00000    5.00000  58.3%     -    0s
H    0     0                       6.0000000    5.00000  16.7%     -    0s
     0     0    5.00000    0   61    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   61    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   42    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   40    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   42    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   57    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   30    6.00000    5.00000  16.7%     -    0s
     0     2    5.00000    0   30    6.00000    5.00000  16.7%     -    0s

Explored 3 nodes (6393 simplex iterations) in 0.36 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%