Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:06 2012

Optimize a model with 616 rows, 812 columns and 2548 nonzeros
Presolve removed 7 rows and 196 columns
Presolve time: 0.01s
Presolved: 609 rows, 616 columns, 2352 nonzeros
Variable types: 0 continuous, 616 integer (616 binary)
Found heuristic solution: objective 12.0000000
Found heuristic solution: objective 2.0000000

Root relaxation: cutoff, 647 iterations, 0.01 seconds

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

     0     0     cutoff    0         2.00000    1.00000  50.0%     -    0s

Explored 0 nodes (647 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%