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 136.0000000

Root relaxation: objective 8.403030e+01, 5 iterations, 0.00 seconds

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

     0     0   84.03030    0    3  136.00000   84.03030  38.2%     -    0s
*    0     0               0      87.0000000   87.00000   0.0%     -    0s

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

Explored 0 nodes (9 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.700000000000e+01, best bound 8.700000000000e+01, gap 0.0%