Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:34 2012

Optimize a model with 18 rows, 19 columns and 36 nonzeros
Presolve removed 14 rows and 15 columns
Presolve time: 0.00s
Presolved: 4 rows, 4 columns, 8 nonzeros
Variable types: 0 continuous, 4 integer (4 binary)
Found heuristic solution: objective 11.0000000

Root relaxation: cutoff, 2 iterations, 0.00 seconds

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

     0     0     cutoff    0        11.00000   11.99999  9.09%     -    0s

Explored 0 nodes (2 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%