Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:55:00 2012

Optimize a model with 7419 rows, 2862 columns and 24855 nonzeros
Presolve removed 1698 rows and 2 columns
Presolve time: 0.21s
Presolved: 5721 rows, 2860 columns, 20664 nonzeros
Variable types: 0 continuous, 2860 integer (2860 binary)
Found heuristic solution: objective 53.0000000

Root relaxation: objective 4.000000e+00, 3856 iterations, 0.32 seconds

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

     0     0    4.00000    0   12   53.00000    4.00000  92.5%     -    1s
H    0     0                       4.0000000    4.00000   0.0%     -    1s

Explored 0 nodes (12235 simplex iterations) in 1.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%