Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:40:19 2012

Optimize a model with 2821 rows, 6972 columns and 15021 nonzeros
Presolve removed 206 rows and 3156 columns
Presolve time: 0.11s
Presolved: 2615 rows, 3816 columns, 11388 nonzeros
Variable types: 0 continuous, 3816 integer (3816 binary)
Found heuristic solution: objective 83.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: infeasible, 71 iterations, 0.00 seconds

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

     0     0 infeasible    0         3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (71 simplex iterations) in 0.12 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%