Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:38 2013

Optimize a model with 14 rows, 16 columns and 40 nonzeros
Presolve removed 7 rows and 7 columns
Presolve time: 0.00s
Presolved: 7 rows, 9 columns, 24 nonzeros
Variable types: 3 continuous, 6 integer (6 binary)
Found heuristic solution: objective 81.0000000

Root relaxation: objective 5.876271e+01, 6 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   58.76271    0    4   81.00000   58.76271  27.5%     -    0s
     0     0   64.23404    0    5   81.00000   64.23404  20.7%     -    0s
     0     0   66.14961    0    6   81.00000   66.14961  18.3%     -    0s
H    0     0                      69.0000000   66.14961  4.13%     -    0s

Cutting planes:
  Gomory: 2
  Implied bound: 1
  MIR: 1

Explored 0 nodes (14 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.900000000000e+01, best bound 6.900000000000e+01, gap 0.0%