Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:25 2012

Optimize a model with 1103 rows, 272 columns and 3502 nonzeros
Presolve removed 658 rows and 2 columns
Presolve time: 0.02s
Presolved: 445 rows, 270 columns, 2262 nonzeros
Variable types: 0 continuous, 270 integer (270 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 6.000000e+00, 653 iterations, 0.02 seconds

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

     0     0    6.00000    0   22   16.00000    6.00000  62.5%     -    0s
H    0     0                      14.0000000    6.00000  57.1%     -    0s
H    0     0                       9.0000000    6.00000  33.3%     -    0s
*    0     0               0       6.0000000    6.00000   0.0%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 10

Explored 0 nodes (1507 simplex iterations) in 0.07 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%