Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:56 2012

Optimize a model with 123 rows, 108 columns and 413 nonzeros
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 123 rows, 105 columns, 410 nonzeros
Variable types: 0 continuous, 105 integer (104 binary)
Found heuristic solution: objective 23.0000000

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   43   23.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.31250    0   45   19.00000    0.31250  98.4%     -    0s
H    0     0                      16.0000000    0.31250  98.0%     -    0s
H    0     0                      13.0000000    0.31250  97.6%     -    0s
     0     0    0.82314    0   47   13.00000    0.82314  93.7%     -    0s
H    0     0                      12.0000000    0.82314  93.1%     -    0s
     0     0    0.82731    0   48   12.00000    0.82731  93.1%     -    0s
     0     0    0.82731    0   48   12.00000    0.82731  93.1%     -    0s
     0     2    0.84558    0   48   12.00000    0.84558  93.0%     -    0s
*    5     5               4       6.0000000    2.73438  54.4%  32.2    0s

Cutting planes:
  Gomory: 4
  Zero half: 2

Explored 17 nodes (737 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%