Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:17 2012

Optimize a model with 99 rows, 91 columns and 336 nonzeros
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 99 rows, 88 columns, 333 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 0.000000e+00, 51 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   38   20.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     0    0.44737    0   39   13.00000    0.44737  96.6%     -    0s
H    0     0                       9.0000000    0.44737  95.0%     -    0s
     0     0    1.00000    0   38    9.00000    1.00000  88.9%     -    0s
     0     0    1.00000    0   38    9.00000    1.00000  88.9%     -    0s
     0     2    1.00000    0   38    9.00000    1.00000  88.9%     -    0s
*   15     9               9       5.0000000    2.25000  55.0%  17.9    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 36 nodes (672 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%