Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:58 2012

Optimize a model with 402 rows, 89 columns and 804 nonzeros
Presolve removed 126 rows and 0 columns
Presolve time: 0.00s
Presolved: 276 rows, 89 columns, 666 nonzeros
Variable types: 0 continuous, 89 integer (89 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 3.275000e+01, 185 iterations, 0.00 seconds

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

     0     0   32.75000    0   82   23.00000   32.75000  42.4%     -    0s
H    0     0                      25.0000000   32.75000  31.0%     -    0s
     0     0   32.00000    0   83   25.00000   32.00000  28.0%     -    0s
     0     0   31.75758    0   86   25.00000   31.75758  27.0%     -    0s
     0     0   31.49000    0   87   25.00000   31.49000  26.0%     -    0s
     0     0   31.16250    0   86   25.00000   31.16250  24.7%     -    0s
     0     0   31.10185    0   85   25.00000   31.10185  24.4%     -    0s
     0     0   31.00684    0   87   25.00000   31.00684  24.0%     -    0s
     0     0   30.89415    0   89   25.00000   30.89415  23.6%     -    0s
H    0     0                      27.0000000   30.89415  14.4%     -    0s
     0     0   30.79390    0   85   27.00000   30.79390  14.1%     -    0s
     0     0   30.61838    0   89   27.00000   30.61838  13.4%     -    0s
     0     0   30.46582    0   88   27.00000   30.46582  12.8%     -    0s
     0     0   30.46535    0   88   27.00000   30.46535  12.8%     -    0s
     0     0   30.46535    0   87   27.00000   30.46535  12.8%     -    0s
     0     2   30.46309    0   87   27.00000   30.46309  12.8%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 1
  Zero half: 69

Explored 150 nodes (3794 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%