Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:54 2012

Optimize a model with 557 rows, 107 columns and 1114 nonzeros
Presolve removed 192 rows and 0 columns
Presolve time: 0.00s
Presolved: 365 rows, 107 columns, 876 nonzeros
Variable types: 0 continuous, 107 integer (107 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.726652e+01, 237 iterations, 0.00 seconds

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

     0     0   37.26652    0  105   28.00000   37.26652  33.1%     -    0s
     0     0   36.73829    0  105   28.00000   36.73829  31.2%     -    0s
     0     0   36.62429    0  107   28.00000   36.62429  30.8%     -    0s
     0     0   36.49158    0  106   28.00000   36.49158  30.3%     -    0s
     0     0   36.43426    0  104   28.00000   36.43426  30.1%     -    0s
     0     0   36.38665    0  107   28.00000   36.38665  30.0%     -    0s
     0     0   36.29989    0  106   28.00000   36.29989  29.6%     -    0s
H    0     0                      29.0000000   36.29989  25.2%     -    0s
     0     0   36.25677    0  107   29.00000   36.25677  25.0%     -    0s
     0     0   36.20965    0  107   29.00000   36.20965  24.9%     -    0s
     0     0   36.20247    0  107   29.00000   36.20247  24.8%     -    0s
     0     0   36.20247    0  106   29.00000   36.20247  24.8%     -    0s
     0     2   36.19211    0  106   29.00000   36.19211  24.8%     -    0s
H   25    11                      32.0000000   35.84608  12.0%  30.5    0s

Cutting planes:
  Clique: 1
  Zero half: 41

Explored 167 nodes (5190 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%