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

Optimize a model with 97 rows, 90 columns and 330 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 97 rows, 88 columns, 328 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 0.000000e+00, 60 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   39   22.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.44813    0   41   11.00000    0.44813  95.9%     -    0s
     0     0    0.86951    0   45   11.00000    0.86951  92.1%     -    0s
H    0     0                       9.0000000    0.86951  90.3%     -    0s
H    0     0                       8.0000000    0.86951  89.1%     -    0s
H    0     0                       6.0000000    0.86951  85.5%     -    0s
     0     0    0.86951    0   45    6.00000    0.86951  85.5%     -    0s
H    0     0                       5.0000000    0.86951  82.6%     -    0s
     0     2    0.87187    0   45    5.00000    0.87187  82.6%     -    0s
*    8     2               6       4.0000000    1.68019  58.0%  21.0    0s

Cutting planes:
  Gomory: 4

Explored 14 nodes (489 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%