Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:36 2012

Optimize a model with 1583 rows, 342 columns and 5002 nonzeros
Presolve removed 992 rows and 2 columns
Presolve time: 0.03s
Presolved: 591 rows, 340 columns, 3316 nonzeros
Variable types: 0 continuous, 340 integer (340 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 6.000000e+00, 560 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   11   18.00000    6.00000  66.7%     -    0s
H    0     0                       7.0000000    6.00000  14.3%     -    0s
*    0     0               0       6.0000000    6.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 10

Explored 0 nodes (1189 simplex iterations) in 0.08 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%