Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:09:22 2012

Optimize a model with 3096 rows, 600 columns and 9792 nonzeros
Presolve removed 780 rows and 0 columns
Presolve time: 0.04s
Presolved: 2316 rows, 600 columns, 13404 nonzeros
Variable types: 0 continuous, 600 integer (600 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 7.000000e+00, 1821 iterations, 0.17 seconds

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

*    0     0               0       7.0000000    7.00000   0.0%     -    0s

Explored 0 nodes (2129 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%