Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:53 2012

Optimize a model with 83 rows, 79 columns and 284 nonzeros
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 83 rows, 76 columns, 281 nonzeros
Variable types: 0 continuous, 76 integer (75 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 50 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   34   15.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.38168    0   36    6.00000    0.38168  93.6%     -    0s
     0     0    0.87529    0   40    6.00000    0.87529  85.4%     -    0s
     0     0    0.87887    0   40    6.00000    0.87887  85.4%     -    0s
     0     0    0.87887    0   40    6.00000    0.87887  85.4%     -    0s
H    0     0                       5.0000000    0.87887  82.4%     -    0s
     0     2    0.89105    0   40    5.00000    0.89105  82.2%     -    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 23 nodes (458 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%