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

Optimize a model with 4859 rows, 756 columns and 15199 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 4857 rows, 754 columns, 20069 nonzeros
Variable types: 0 continuous, 754 integer (754 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.578947e+00, 3642 iterations, 0.19 seconds

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

     0     0    3.57895    0  686   27.00000    3.57895  86.7%     -    0s
     0     0    5.00000    0  125   27.00000    5.00000  81.5%     -    0s
H    0     0                      24.0000000    5.00000  79.2%     -    0s
     0     0    5.04702    0  659   24.00000    5.04702  79.0%     -    1s
H    0     0                      12.0000000    5.04702  57.9%     -    1s
     0     0    5.05473    0  682   12.00000    5.05473  57.9%     -    1s
H    0     0                       6.0000000    5.05473  15.8%     -    1s

Cutting planes:
  Gomory: 2
  Clique: 3
  Zero half: 15

Explored 0 nodes (6779 simplex iterations) in 1.25 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%