Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:03 2012

Optimize a model with 438 rows, 93 columns and 876 nonzeros
Presolve removed 155 rows and 0 columns
Presolve time: 0.00s
Presolved: 283 rows, 93 columns, 703 nonzeros
Variable types: 0 continuous, 93 integer (93 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 3.390323e+01, 203 iterations, 0.00 seconds

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

     0     0   33.90323    0   89   23.00000   33.90323  47.4%     -    0s
H    0     0                      24.0000000   33.90323  41.3%     -    0s
H    0     0                      28.0000000   33.90323  21.1%     -    0s
     0     0   33.00000    0   87   28.00000   33.00000  17.9%     -    0s
     0     0   33.00000    0   90   28.00000   33.00000  17.9%     -    0s
     0     0   33.00000    0   86   28.00000   33.00000  17.9%     -    0s
     0     0   33.00000    0   89   28.00000   33.00000  17.9%     -    0s
     0     0   33.00000    0   89   28.00000   33.00000  17.9%     -    0s
     0     2   33.00000    0   89   28.00000   33.00000  17.9%     -    0s
H   22    10                      29.0000000   32.65399  12.6%  39.8    0s

Cutting planes:
  Gomory: 1
  Clique: 2
  Zero half: 36

Explored 78 nodes (3491 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%