Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:00 2012

Optimize a model with 394 rows, 91 columns and 788 nonzeros
Presolve removed 123 rows and 0 columns
Presolve time: 0.00s
Presolved: 271 rows, 91 columns, 635 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.375000e+01, 170 iterations, 0.00 seconds

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

     0     0   33.75000    0   90   25.00000   33.75000  35.0%     -    0s
H    0     0                      29.0000000   33.75000  16.4%     -    0s
     0     0   33.00000    0   89   29.00000   33.00000  13.8%     -    0s
     0     0   33.00000    0   87   29.00000   33.00000  13.8%     -    0s
     0     0   33.00000    0   88   29.00000   33.00000  13.8%     -    0s
     0     0   33.00000    0   70   29.00000   33.00000  13.8%     -    0s
H    0     0                      30.0000000   33.00000  10.0%     -    0s
     0     2   33.00000    0   70   30.00000   33.00000  10.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 10

Explored 46 nodes (1667 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%