Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:30 2012

Optimize a model with 910 rows, 61 columns and 1820 nonzeros
Presolve removed 634 rows and 0 columns
Presolve time: 0.02s
Presolved: 276 rows, 61 columns, 1651 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.037513e+01, 131 iterations, 0.00 seconds

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

     0     0   10.37513    0   54    8.00000   10.37513  29.7%     -    0s
H    0     0                       9.0000000   10.37513  15.3%     -    0s
     0     0   10.01923    0   56    9.00000   10.01923  11.3%     -    0s
     0     0     cutoff    0         9.00000    9.99999  11.1%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 23
  Zero half: 1

Explored 0 nodes (216 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%