Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:08 2012

Optimize a model with 462 rows, 96 columns and 924 nonzeros
Presolve removed 170 rows and 0 columns
Presolve time: 0.00s
Presolved: 292 rows, 96 columns, 731 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.509375e+01, 175 iterations, 0.00 seconds

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

     0     0   35.09375    0   88   28.00000   35.09375  25.3%     -    0s
     0     0   34.48400    0   89   28.00000   34.48400  23.2%     -    0s
     0     0   34.25083    0   95   28.00000   34.25083  22.3%     -    0s
     0     0   34.08440    0   92   28.00000   34.08440  21.7%     -    0s
     0     0   33.95361    0   94   28.00000   33.95361  21.3%     -    0s
     0     0   33.85011    0   94   28.00000   33.85011  20.9%     -    0s
H    0     0                      29.0000000   33.85011  16.7%     -    0s
     0     0   33.83264    0   93   29.00000   33.83264  16.7%     -    0s
     0     0   33.79079    0   94   29.00000   33.79079  16.5%     -    0s
     0     0   33.73725    0   96   29.00000   33.73725  16.3%     -    0s
     0     0   33.69244    0   94   29.00000   33.69244  16.2%     -    0s
     0     0   33.67418    0   94   29.00000   33.67418  16.1%     -    0s
     0     0   33.66976    0   96   29.00000   33.66976  16.1%     -    0s
     0     2   33.66851    0   96   29.00000   33.66851  16.1%     -    0s
*  252    17              12      30.0000000   31.73333  5.78%  24.5    0s

Cutting planes:
  Clique: 4
  Zero half: 50

Explored 279 nodes (7145 simplex iterations) in 0.26 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%