Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:19 2012

Optimize a model with 199 rows, 139 columns and 634 nonzeros
Presolve time: 0.00s
Presolved: 199 rows, 139 columns, 634 nonzeros
Variable types: 0 continuous, 139 integer (139 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 0.000000e+00, 61 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   40   43.00000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
     0     0    0.55263    0   42   34.00000    0.55263  98.4%     -    0s
H    0     0                      32.0000000    0.55263  98.3%     -    0s
     0     0    0.68421    0   42   32.00000    0.68421  97.9%     -    0s
     0     0    0.71053    0   43   32.00000    0.71053  97.8%     -    0s
     0     0    0.80126    0   42   32.00000    0.80126  97.5%     -    0s
     0     0    0.82155    0   49   32.00000    0.82155  97.4%     -    0s
     0     0    0.84211    0   42   32.00000    0.84211  97.4%     -    0s
     0     0    0.86842    0   43   32.00000    0.86842  97.3%     -    0s
     0     0    0.89070    0   59   32.00000    0.89070  97.2%     -    0s
     0     0    0.98246    0   46   32.00000    0.98246  96.9%     -    0s
     0     0    0.99512    0   56   32.00000    0.99512  96.9%     -    0s
     0     0    0.99512    0   56   32.00000    0.99512  96.9%     -    0s
     0     2    1.03608    0   56   32.00000    1.03608  96.8%     -    0s
*   19    19              11      23.0000000    4.23077  81.6%  31.1    0s

Cutting planes:
  Gomory: 1
  Mod-K: 7

Explored 343 nodes (6055 simplex iterations) in 0.17 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%