Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:19 2012

Optimize a model with 161 rows, 99 columns and 499 nonzeros
Presolve time: 0.00s
Presolved: 161 rows, 99 columns, 499 nonzeros
Variable types: 0 continuous, 99 integer (99 binary)
Found heuristic solution: objective 44.0000000
Found heuristic solution: objective 40.0000000

Root relaxation: objective 0.000000e+00, 29 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   19   40.00000    0.00000   100%     -    0s
     0     0    0.78947    0   21   40.00000    0.78947  98.0%     -    0s
     0     0    0.78947    0   21   40.00000    0.78947  98.0%     -    0s
     0     0    0.78947    0   21   40.00000    0.78947  98.0%     -    0s
H    0     0                      39.0000000    0.78947  98.0%     -    0s
H    0     0                      36.0000000    0.78947  97.8%     -    0s
     0     2    0.81699    0   21   36.00000    0.81699  97.7%     -    0s
*   73    35              12      34.0000000    6.13889  81.9%  15.8    0s
*  161    65              11      33.0000000   12.50000  62.1%  15.4    0s
*  190    65              12      32.0000000   12.50000  60.9%  14.5    0s
*  201    58              11      30.0000000   12.50000  58.3%  14.1    0s

Cutting planes:
  Gomory: 1
  Zero half: 9

Explored 612 nodes (7521 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%