Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:13 2012

Optimize a model with 157 rows, 113 columns and 503 nonzeros
Presolve time: 0.00s
Presolved: 157 rows, 113 columns, 503 nonzeros
Variable types: 0 continuous, 113 integer (113 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 0.000000e+00, 61 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   35   41.00000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     0    0.64286    0   37   31.00000    0.64286  97.9%     -    0s
H    0     0                      24.0000000    0.64286  97.3%     -    0s
     0     0    0.80816    0   37   24.00000    0.80816  96.6%     -    0s
     0     0    0.86327    0   37   24.00000    0.86327  96.4%     -    0s
     0     0    0.86327    0   38   24.00000    0.86327  96.4%     -    0s
     0     0    0.86327    0   38   24.00000    0.86327  96.4%     -    0s
     0     2    0.91964    0   37   24.00000    0.91964  96.2%     -    0s
*   22    22              15      21.0000000    4.60526  78.1%  28.0    0s
*   41    27              13      19.0000000    4.67442  75.4%  20.6    0s
*   42    24              13      18.0000000    4.67442  74.0%  20.1    0s
*   64    26               5      17.0000000    9.50000  44.1%  18.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 12

Explored 124 nodes (2021 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%