Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:06 2012

Optimize a model with 479 rows, 94 columns and 958 nonzeros
Presolve removed 181 rows and 0 columns
Presolve time: 0.00s
Presolved: 298 rows, 94 columns, 745 nonzeros
Variable types: 0 continuous, 94 integer (94 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 3.313725e+01, 182 iterations, 0.00 seconds

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

     0     0   33.13725    0   93   24.00000   33.13725  38.1%     -    0s
H    0     0                      27.0000000   33.13725  22.7%     -    0s
     0     0   32.80959    0   91   27.00000   32.80959  21.5%     -    0s
     0     0   32.57527    0   92   27.00000   32.57527  20.6%     -    0s
     0     0   32.31772    0   91   27.00000   32.31772  19.7%     -    0s
     0     0   32.12857    0   93   27.00000   32.12857  19.0%     -    0s
     0     0   32.09377    0   93   27.00000   32.09377  18.9%     -    0s
     0     0   32.07552    0   93   27.00000   32.07552  18.8%     -    0s
     0     0   32.02643    0   93   27.00000   32.02643  18.6%     -    0s
     0     0   32.00833    0   93   27.00000   32.00833  18.5%     -    0s
     0     0   31.97799    0   93   27.00000   31.97799  18.4%     -    0s
     0     0   31.96700    0   93   27.00000   31.96700  18.4%     -    0s
     0     0   31.96700    0   93   27.00000   31.96700  18.4%     -    0s
     0     2   31.96591    0   93   27.00000   31.96591  18.4%     -    0s
*   51    15               8      28.0000000   31.41066  12.2%  25.1    0s
*   61     8               5      29.0000000   31.40654  8.30%  24.6    0s

Cutting planes:
  Clique: 2
  Zero half: 34

Explored 90 nodes (2657 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%