Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:42 2012

Optimize a model with 137 rows, 84 columns and 424 nonzeros
Presolve time: 0.00s
Presolved: 137 rows, 84 columns, 424 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 35.0000000
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds

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

     0     0    0.00000    0   16   30.00000    0.00000   100%     -    0s
     0     0    0.57143    0   17   30.00000    0.57143  98.1%     -    0s
     0     0    1.35714    0   19   30.00000    1.35714  95.5%     -    0s
     0     0    1.35714    0   19   30.00000    1.35714  95.5%     -    0s
     0     0    1.40338    0   27   30.00000    1.40338  95.3%     -    0s
     0     0    1.42857    0   19   30.00000    1.42857  95.2%     -    0s
     0     0    1.54762    0   19   30.00000    1.54762  94.8%     -    0s
     0     0    1.56741    0   31   30.00000    1.56741  94.8%     -    0s
     0     2    1.74962    0   31   30.00000    1.74962  94.2%     -    0s
*   72    30              13      29.0000000   11.13534  61.6%  12.8    0s
*   74    28              12      28.0000000   11.13534  60.2%  12.5    0s
*  222    26               8      27.0000000   19.09091  29.3%   9.9    0s

Cutting planes:
  Gomory: 2
  Mod-K: 9

Explored 292 nodes (2785 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%