Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:51:35 2012

Optimize a model with 305 rows, 235 columns and 995 nonzeros
Presolve time: 0.00s
Presolved: 305 rows, 235 columns, 995 nonzeros
Variable types: 0 continuous, 235 integer (235 binary)
Found heuristic solution: objective 69.0000000

Root relaxation: objective 0.000000e+00, 128 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   82   69.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
     0     0    0.49787    0   85   38.00000    0.49787  98.7%     -    0s
H    0     0                      36.0000000    0.49787  98.6%     -    0s
     0     0    0.98283    0   87   36.00000    0.98283  97.3%     -    0s
H    0     0                      33.0000000    0.98283  97.0%     -    0s
     0     0    0.98283    0   87   33.00000    0.98283  97.0%     -    0s
     0     2    0.99992    0   87   33.00000    0.99992  97.0%     -    0s
*   30    30              18      30.0000000    4.09570  86.3%  35.5    0s
*   56    37              16      27.0000000    4.10165  84.8%  32.8    0s
*  104    59              17      24.0000000    7.38139  69.2%  28.9    0s
*  130    64              17      22.0000000   10.54991  52.0%  27.7    0s
*  148    64              11      21.0000000   10.60673  49.5%  27.3    0s
*  162    54              12      20.0000000   11.55738  42.2%  26.2    0s

Cutting planes:
  Gomory: 3

Explored 369 nodes (8211 simplex iterations) in 0.38 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%