Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:43:25 2012

Optimize a model with 415 rows, 301 columns and 1336 nonzeros
Presolve time: 0.00s
Presolved: 415 rows, 301 columns, 1336 nonzeros
Variable types: 0 continuous, 301 integer (301 binary)
Found heuristic solution: objective 87.0000000

Root relaxation: objective 0.000000e+00, 139 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   93   87.00000    0.00000   100%     -    0s
H    0     0                      82.0000000    0.00000   100%     -    0s
     0     0    0.47377    0   95   82.00000    0.47377  99.4%     -    0s
     0     0    0.54132    0   96   82.00000    0.54132  99.3%     -    0s
     0     0    0.56098    0   97   82.00000    0.56098  99.3%     -    0s
     0     0    0.56098    0   97   82.00000    0.56098  99.3%     -    0s
H    0     0                      74.0000000    0.56098  99.2%     -    0s
     0     2    0.56301    0   97   74.00000    0.56301  99.2%     -    0s
*   47    47              27      46.0000000    3.53846  92.3%  28.5    0s
*   49    44              25      45.0000000    3.53846  92.1%  27.4    0s
H   54    40                      43.0000000    3.59259  91.6%  27.0    0s
*  119    75              26      36.0000000    7.57895  78.9%  26.4    0s
* 1439   321              33      35.0000000   17.09524  51.2%  25.6    1s
  4222   695   28.07500   21  130   35.00000   23.16000  33.8%  22.4    5s
* 4357   681              27      34.0000000   23.54545  30.7%  22.3    5s
* 4748   651              28      33.0000000   24.00000  27.3%  22.1    5s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 2

Explored 8167 nodes (169696 simplex iterations) in 8.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%