Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:29 2012

Optimize a model with 535 rows, 103 columns and 1070 nonzeros
Presolve removed 168 rows and 0 columns
Presolve time: 0.00s
Presolved: 367 rows, 103 columns, 887 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.646154e+01, 252 iterations, 0.00 seconds

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

     0     0   36.46154    0   98   25.00000   36.46154  45.8%     -    0s
H    0     0                      27.0000000   36.46154  35.0%     -    0s
     0     0   35.89979    0  102   27.00000   35.89979  33.0%     -    0s
     0     0   35.77773    0  103   27.00000   35.77773  32.5%     -    0s
H    0     0                      29.0000000   35.77773  23.4%     -    0s
     0     0   35.74277    0  101   29.00000   35.74277  23.3%     -    0s
     0     0   35.72017    0  102   29.00000   35.72017  23.2%     -    0s
     0     0   35.56092    0  101   29.00000   35.56092  22.6%     -    0s
     0     0   35.35353    0  103   29.00000   35.35353  21.9%     -    0s
     0     0   35.22291    0  102   29.00000   35.22291  21.5%     -    0s
     0     0   35.09782    0  103   29.00000   35.09782  21.0%     -    0s
     0     0   35.02993    0  103   29.00000   35.02993  20.8%     -    0s
     0     0   35.02102    0  103   29.00000   35.02102  20.8%     -    0s
     0     0   35.02102    0  103   29.00000   35.02102  20.8%     -    0s
     0     2   35.01179    0  102   29.00000   35.01179  20.7%     -    0s
*   18    16              15      30.0000000   35.01179  16.7%  33.6    0s

Cutting planes:
  Clique: 1
  Zero half: 57

Explored 387 nodes (10051 simplex iterations) in 0.37 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%