Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:24 2012

Optimize a model with 261 rows, 199 columns and 849 nonzeros
Presolve time: 0.00s
Presolved: 261 rows, 199 columns, 849 nonzeros
Variable types: 0 continuous, 199 integer (199 binary)
Found heuristic solution: objective 62.0000000

Root relaxation: objective 0.000000e+00, 114 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   68   62.00000    0.00000   100%     -    0s
H    0     0                      51.0000000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
     0     0    0.55000    0   69   37.00000    0.55000  98.5%     -    0s
     0     0    0.58565    0   71   37.00000    0.58565  98.4%     -    0s
     0     0    0.73723    0   73   37.00000    0.73723  98.0%     -    0s
     0     0    0.74255    0   71   37.00000    0.74255  98.0%     -    0s
     0     0    0.76667    0   74   37.00000    0.76667  97.9%     -    0s
     0     0    0.76667    0   73   37.00000    0.76667  97.9%     -    0s
     0     2    0.76667    0   73   37.00000    0.76667  97.9%     -    0s
*   28    28              19      24.0000000    2.59394  89.2%  25.1    0s
*  397   130              10      23.0000000   10.26667  55.4%  22.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 2
  Mod-K: 1

Explored 1116 nodes (23990 simplex iterations) in 0.86 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%