Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:10:03 2012

Optimize a model with 3287 rows, 600 columns and 10342 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 3285 rows, 598 columns, 17483 nonzeros
Variable types: 0 continuous, 598 integer (598 binary)

Root relaxation: objective 5.259259e+00, 1568 iterations, 0.06 seconds

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

     0     0    5.25926    0  183          -    5.25926     -      -    0s
H    0     0                      24.0000000    5.25926  78.1%     -    0s
H    0     0                       7.0000000    5.25926  24.9%     -    0s
*    0     0               0       6.0000000    6.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 5

Explored 0 nodes (6459 simplex iterations) in 0.80 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%