Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:05 2012

Optimize a model with 91 rows, 85 columns and 310 nonzeros
Presolve removed 0 rows and 6 columns
Presolve time: 0.00s
Presolved: 91 rows, 79 columns, 304 nonzeros
Variable types: 0 continuous, 79 integer (78 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 0.000000e+00, 48 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   31   16.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.26276    0   33   10.00000    0.26276  97.4%     -    0s
     0     0    0.86352    0   37   10.00000    0.86352  91.4%     -    0s
     0     0    0.86797    0   37   10.00000    0.86797  91.3%     -    0s
H    0     0                       7.0000000    0.86797  87.6%     -    0s
     0     2    0.88401    0   37    7.00000    0.88401  87.4%     -    0s
*    9     4               6       6.0000000    1.55666  74.1%  19.0    0s

Cutting planes:
  Gomory: 4
  Zero half: 1
  Mod-K: 1

Explored 36 nodes (648 simplex iterations) in 0.04 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%