Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:05 2012

Optimize a model with 213 rows, 170 columns and 700 nonzeros
Presolve time: 0.00s
Presolved: 213 rows, 170 columns, 700 nonzeros
Variable types: 0 continuous, 170 integer (170 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 0.000000e+00, 103 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   63   41.00000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
     0     0    0.61016    0   64   33.00000    0.61016  98.2%     -    0s
     0     0    1.33104    0   66   33.00000    1.33104  96.0%     -    0s
H    0     0                      29.0000000    1.33104  95.4%     -    0s
     0     0    1.65990    0   68   29.00000    1.65990  94.3%     -    0s
H    0     0                      26.0000000    1.65990  93.6%     -    0s
     0     0    1.66246    0   69   26.00000    1.66246  93.6%     -    0s
     0     0    1.66246    0   69   26.00000    1.66246  93.6%     -    0s
     0     2    1.66246    0   69   26.00000    1.66246  93.6%     -    0s
H   27    27                      19.0000000    3.65400  80.8%  20.0    0s
*   46    31              11      18.0000000    3.71973  79.3%  20.3    0s
*   64    35              11      17.0000000    6.05910  64.4%  20.8    0s
*   94    33               8      15.0000000    7.58023  49.5%  22.1    0s

Cutting planes:
  Gomory: 4
  Zero half: 5

Explored 251 nodes (5531 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%