Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:47:12 2012

Optimize a model with 221 rows, 157 columns and 707 nonzeros
Presolve time: 0.00s
Presolved: 221 rows, 157 columns, 707 nonzeros
Variable types: 0 continuous, 157 integer (157 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 0.000000e+00, 79 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   47   52.00000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
     0     0    0.83688    0   49   38.00000    0.83688  97.8%     -    0s
     0     0    0.85106    0   49   38.00000    0.85106  97.8%     -    0s
H    0     0                      37.0000000    0.85106  97.7%     -    0s
H    0     0                      35.0000000    0.85106  97.6%     -    0s
     0     0    0.86525    0   49   35.00000    0.86525  97.5%     -    0s
     0     0    0.89362    0   49   35.00000    0.89362  97.4%     -    0s
     0     0    0.89362    0   49   35.00000    0.89362  97.4%     -    0s
     0     0    0.89362    0   49   35.00000    0.89362  97.4%     -    0s
     0     2    0.90133    0   49   35.00000    0.90133  97.4%     -    0s
*   23    23              13      28.0000000    3.55556  87.3%  24.7    0s
*   31    21              15      27.0000000    3.55556  86.8%  20.5    0s
*   54    33              17      25.0000000    3.59206  85.6%  21.0    0s
*  275    60              11      24.0000000   12.86667  46.4%  17.6    0s

Cutting planes:
  Gomory: 1
  Zero half: 17

Explored 696 nodes (11465 simplex iterations) in 0.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%