Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:23 2012

Optimize a model with 139 rows, 105 columns and 450 nonzeros
Presolve time: 0.00s
Presolved: 139 rows, 105 columns, 450 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 0.000000e+00, 52 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   36   34.00000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     0    0.71875    0   38   24.00000    0.71875  97.0%     -    0s
H    0     0                      22.0000000    0.71875  96.7%     -    0s
     0     0    0.87500    0   38   22.00000    0.87500  96.0%     -    0s
     0     0    0.91731    0   39   22.00000    0.91731  95.8%     -    0s
     0     0    0.92658    0   52   22.00000    0.92658  95.8%     -    0s
H    0     0                      21.0000000    0.92658  95.6%     -    0s
H    0     0                      20.0000000    0.92658  95.4%     -    0s
     0     2    0.93790    0   52   20.00000    0.93790  95.3%     -    0s
*   21    20              14      16.0000000    3.03383  81.0%  21.8    0s
*  135    34               8      15.0000000    9.63636  35.8%  12.8    0s

Cutting planes:
  Gomory: 1
  Mod-K: 5

Explored 215 nodes (2834 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%