Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:38:31 2012

Optimize a model with 4724 rows, 2070 columns and 16018 nonzeros
Presolve removed 1172 rows and 2 columns
Presolve time: 0.11s
Presolved: 3552 rows, 2068 columns, 13115 nonzeros
Variable types: 0 continuous, 2068 integer (2068 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 3.000000e+00, 3119 iterations, 0.26 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%     -    1s

Explored 0 nodes (15262 simplex iterations) in 1.77 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%