Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:43:02 2012

Optimize a model with 43631 rows, 41006 columns and 170890 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.10s
Presolved: 43831 rows, 41004 columns, 211262 nonzeros
Variable types: 0 continuous, 41004 integer (41004 binary)
Found heuristic solution: objective 202.0000000

Root relaxation: objective 2.000000e+00, 27126 iterations, 2.26 seconds
Total elapsed time = 6.15s

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

     0     0    2.00000    0  334  202.00000    2.00000  99.0%     -    7s
H    0     0                       4.0000000    2.00000  50.0%     -    7s
H    0     0                       3.0000000    2.00000  33.3%     -    7s

Cutting planes:
  Zero half: 1

Explored 0 nodes (85266 simplex iterations) in 7.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%