Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:02:04 2012

Optimize a model with 12231 rows, 6642 columns and 43011 nonzeros
Presolve removed 1378 rows and 81 columns
Presolve time: 0.24s
Presolved: 10853 rows, 6561 columns, 39609 nonzeros
Variable types: 0 continuous, 6561 integer (6561 binary)
Found heuristic solution: objective 45.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 11454 iterations, 1.37 seconds

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

     0     0     cutoff    0         3.00000    2.00000  33.3%     -    1s

Explored 0 nodes (11454 simplex iterations) in 1.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%