Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:12 2012

Optimize a model with 271 rows, 34 columns and 542 nonzeros
Presolve removed 180 rows and 0 columns
Presolve time: 0.00s
Presolved: 91 rows, 34 columns, 435 nonzeros
Variable types: 0 continuous, 34 integer (34 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 7.600000e+00, 53 iterations, 0.00 seconds

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

     0     0    7.60000    0   25    5.00000    7.60000  52.0%     -    0s
H    0     0                       6.0000000    7.60000  26.7%     -    0s
     0     0    7.20000    0   29    6.00000    7.20000  20.0%     -    0s
H    0     0                       7.0000000    7.20000  2.86%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 6
  Zero half: 2

Explored 0 nodes (90 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%