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

Optimize a model with 500 rows, 98 columns and 1000 nonzeros
Presolve removed 174 rows and 0 columns
Presolve time: 0.00s
Presolved: 326 rows, 98 columns, 803 nonzeros
Variable types: 0 continuous, 98 integer (98 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.451942e+01, 215 iterations, 0.00 seconds

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

     0     0   34.51942    0   91   27.00000   34.51942  27.8%     -    0s
H    0     0                      28.0000000   34.51942  23.3%     -    0s
     0     0   33.89757    0   96   28.00000   33.89757  21.1%     -    0s
     0     0   33.64654    0   96   28.00000   33.64654  20.2%     -    0s
     0     0   33.42302    0   94   28.00000   33.42302  19.4%     -    0s
     0     0   33.28571    0   94   28.00000   33.28571  18.9%     -    0s
     0     0   33.26885    0   96   28.00000   33.26885  18.8%     -    0s
     0     0   33.18228    0   94   28.00000   33.18228  18.5%     -    0s
     0     0   33.10068    0   94   28.00000   33.10068  18.2%     -    0s
     0     0   33.04209    0   97   28.00000   33.04209  18.0%     -    0s
     0     0   32.92609    0   95   28.00000   32.92609  17.6%     -    0s
     0     0   32.91713    0   96   28.00000   32.91713  17.6%     -    0s
     0     0   32.91713    0   95   28.00000   32.91713  17.6%     -    0s
     0     2   32.91434    0   95   28.00000   32.91434  17.6%     -    0s
*    3     3               3      29.0000000   32.91434  13.5%  71.3    0s

Cutting planes:
  Clique: 5
  Zero half: 46

Explored 183 nodes (4977 simplex iterations) in 0.21 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%