Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:28 2012

Optimize a model with 99 rows, 63 columns and 308 nonzeros
Presolve time: 0.00s
Presolved: 99 rows, 63 columns, 308 nonzeros
Variable types: 0 continuous, 63 integer (63 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 23 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   14   27.00000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
     0     0    0.92857    0   16   25.00000    0.92857  96.3%     -    0s
     0     0    0.92857    0   16   25.00000    0.92857  96.3%     -    0s
     0     0    0.96190    0   22   25.00000    0.96190  96.2%     -    0s
     0     0    1.00000    0   16   25.00000    1.00000  96.0%     -    0s
H    0     0                      23.0000000    1.00000  95.7%     -    0s
     0     0    1.00000    0   16   23.00000    1.00000  95.7%     -    0s
     0     0    1.00000    0   16   23.00000    1.00000  95.7%     -    0s
H    0     0                      22.0000000    1.00000  95.5%     -    0s
     0     2    1.30769    0   16   22.00000    1.30769  94.1%     -    0s
*   41    15               8      21.0000000    4.42857  78.9%  10.0    0s
*   63    17              11      20.0000000    7.00000  65.0%   9.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 5

Explored 183 nodes (1586 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%