Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:54 2012

Optimize a model with 14 rows, 21 columns and 28 nonzeros
Presolve removed 5 rows and 13 columns
Presolve time: 0.00s
Presolved: 9 rows, 8 columns, 18 nonzeros
Variable types: 0 continuous, 8 integer (8 binary)
Found heuristic solution: objective 12.0000000

Root relaxation: objective 1.300000e+01, 9 iterations, 0.00 seconds

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

*    0     0               0      13.0000000   13.00000   0.0%     -    0s

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 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%