Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:21 2012

Optimize a model with 502 rows, 101 columns and 1004 nonzeros
Presolve removed 171 rows and 0 columns
Presolve time: 0.00s
Presolved: 331 rows, 101 columns, 807 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.726136e+01, 232 iterations, 0.00 seconds

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

     0     0   37.26136    0   95   26.00000   37.26136  43.3%     -    0s
H    0     0                      30.0000000   37.26136  24.2%     -    0s
     0     0   36.23077    0   94   30.00000   36.23077  20.8%     -    0s
     0     0   35.75158    0   98   30.00000   35.75158  19.2%     -    0s
     0     0   35.39500    0   97   30.00000   35.39500  18.0%     -    0s
     0     0   35.11502    0   99   30.00000   35.11502  17.1%     -    0s
     0     0   34.96960    0   98   30.00000   34.96960  16.6%     -    0s
     0     0   34.85034    0   98   30.00000   34.85034  16.2%     -    0s
     0     0   34.78294    0   98   30.00000   34.78294  15.9%     -    0s
     0     0   34.72286    0   99   30.00000   34.72286  15.7%     -    0s
     0     0   34.64401    0   99   30.00000   34.64401  15.5%     -    0s
     0     0   34.64107    0  100   30.00000   34.64107  15.5%     -    0s
     0     0   34.64107    0   99   30.00000   34.64107  15.5%     -    0s
     0     2   34.64040    0   98   30.00000   34.64040  15.5%     -    0s
*    8     8               5      31.0000000   34.64040  11.7%  49.5    0s
*   37     3               6      32.0000000   34.34884  7.34%  27.6    0s

Cutting planes:
  Clique: 1
  Zero half: 50

Explored 56 nodes (2264 simplex iterations) in 0.14 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%