Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:35 2012

Optimize a model with 117 rows, 73 columns and 363 nonzeros
Presolve time: 0.00s
Presolved: 117 rows, 73 columns, 363 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 33.0000000
Found heuristic solution: objective 28.0000000

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   15   28.00000    0.00000   100%     -    0s
     0     0    0.88578    0   26   28.00000    0.88578  96.8%     -    0s
     0     0    0.88889    0   17   28.00000    0.88889  96.8%     -    0s
     0     0    1.02222    0   19   28.00000    1.02222  96.3%     -    0s
     0     0    1.05185    0   21   28.00000    1.05185  96.2%     -    0s
     0     0    1.08735    0   35   28.00000    1.08735  96.1%     -    0s
     0     0    1.15556    0   18   28.00000    1.15556  95.9%     -    0s
     0     0    1.15556    0   18   28.00000    1.15556  95.9%     -    0s
     0     0    1.15556    0   18   28.00000    1.15556  95.9%     -    0s
     0     2    1.17073    0   18   28.00000    1.17073  95.8%     -    0s
*   17    15              10      27.0000000    6.33333  76.5%  17.2    0s
*   33    21               8      26.0000000    6.66667  74.4%  14.2    0s
*   38    20               8      25.0000000    6.66667  73.3%  13.4    0s
*   55    29               9      24.0000000    9.16667  61.8%  12.4    0s
*  334    34              10      23.0000000   17.66667  23.2%   8.9    0s

Cutting planes:
  Gomory: 1
  Zero half: 13

Explored 384 nodes (3419 simplex iterations) in 0.07 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%