Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:13 2012

Optimize a model with 475 rows, 98 columns and 950 nonzeros
Presolve removed 165 rows and 1 columns
Presolve time: 0.00s
Presolved: 310 rows, 97 columns, 740 nonzeros
Variable types: 0 continuous, 97 integer (97 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.579592e+01, 219 iterations, 0.00 seconds

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

     0     0   35.79592    0   93   25.00000   35.79592  43.2%     -    0s
     0     0   35.31127    0   94   25.00000   35.31127  41.2%     -    0s
H    0     0                      26.0000000   35.31127  35.8%     -    0s
     0     0   35.08960    0   95   26.00000   35.08960  35.0%     -    0s
H    0     0                      28.0000000   35.08960  25.3%     -    0s
     0     0   34.84364    0   94   28.00000   34.84364  24.4%     -    0s
     0     0   34.79023    0   97   28.00000   34.79023  24.3%     -    0s
     0     0   34.71918    0   97   28.00000   34.71918  24.0%     -    0s
     0     0   34.71099    0   97   28.00000   34.71099  24.0%     -    0s
     0     0   34.71099    0   96   28.00000   34.71099  24.0%     -    0s
     0     2   34.71095    0   96   28.00000   34.71095  24.0%     -    0s
*    9     9               6      29.0000000   34.71095  19.7%  48.4    0s
*  250    37               7      30.0000000   32.60000  8.67%  19.6    0s

Cutting planes:
  Gomory: 3
  Clique: 3
  Zero half: 41

Explored 389 nodes (7380 simplex iterations) in 0.24 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%