Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:16 2012

Optimize a model with 199 rows, 141 columns and 636 nonzeros
Presolve time: 0.00s
Presolved: 199 rows, 141 columns, 636 nonzeros
Variable types: 0 continuous, 141 integer (141 binary)
Found heuristic solution: objective 51.0000000

Root relaxation: objective 0.000000e+00, 63 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   42   51.00000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
     0     0    0.75000    0   43   34.00000    0.75000  97.8%     -    0s
     0     0    1.30796    0   46   34.00000    1.30796  96.2%     -    0s
     0     0    1.40402    0   47   34.00000    1.40402  95.9%     -    0s
     0     0    1.41295    0   48   34.00000    1.41295  95.8%     -    0s
     0     0    1.41295    0   48   34.00000    1.41295  95.8%     -    0s
     0     2    1.44107    0   48   34.00000    1.44107  95.8%     -    0s
H   27    27                      27.0000000    4.66155  82.7%  27.9    0s
*  115    82              16      26.0000000    7.16667  72.4%  23.5    0s
H  135    72                      21.0000000    9.75000  53.6%  23.4    0s
H  582    73                      20.0000000   15.25000  23.8%  17.3    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 769 nodes (12553 simplex iterations) in 0.32 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%