Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:19:13 2012

Optimize a model with 3853 rows, 1722 columns and 13077 nonzeros
Presolve removed 741 rows and 43 columns
Presolve time: 0.11s
Presolved: 3112 rows, 1679 columns, 11203 nonzeros
Variable types: 0 continuous, 1679 integer (1679 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 3.000000e+00, 2562 iterations, 0.17 seconds

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

*    0     0               0       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (4493 simplex iterations) in 0.47 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%