Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:09 2012

Optimize a model with 437 rows, 96 columns and 874 nonzeros
Presolve removed 133 rows and 0 columns
Presolve time: 0.00s
Presolved: 304 rows, 96 columns, 714 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.725000e+01, 179 iterations, 0.00 seconds

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

     0     0   37.25000    0   88   29.00000   37.25000  28.4%     -    0s
H    0     0                      31.0000000   37.25000  20.2%     -    0s
     0     0   36.67442    0   93   31.00000   36.67442  18.3%     -    0s
     0     0   35.97479    0   94   31.00000   35.97479  16.0%     -    0s
     0     0   35.56373    0   94   31.00000   35.56373  14.7%     -    0s
     0     0   35.41003    0   95   31.00000   35.41003  14.2%     -    0s
     0     0   35.23477    0   95   31.00000   35.23477  13.7%     -    0s
     0     0   35.16625    0   95   31.00000   35.16625  13.4%     -    0s
     0     0   35.08232    0   94   31.00000   35.08232  13.2%     -    0s
     0     0   35.03404    0   94   31.00000   35.03404  13.0%     -    0s
     0     0   35.00000    0   94   31.00000   35.00000  12.9%     -    0s
     0     0   35.00000    0   93   31.00000   35.00000  12.9%     -    0s
     0     0   34.97823    0   95   31.00000   34.97823  12.8%     -    0s
     0     0   34.97823    0   94   31.00000   34.97823  12.8%     -    0s
H    0     0                      32.0000000   34.97823  9.31%     -    0s
     0     2   34.97570    0   94   32.00000   34.97570  9.30%     -    0s

Cutting planes:
  Clique: 2
  Zero half: 57

Explored 38 nodes (1806 simplex iterations) in 0.12 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%