Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:10:57 2012

Optimize a model with 41381 rows, 39402 columns and 162556 nonzeros
Presolve removed 25 rows and 4556 columns
Presolve time: 0.93s
Presolved: 41356 rows, 34846 columns, 157584 nonzeros
Variable types: 0 continuous, 34846 integer (34846 binary)
Found heuristic solution: objective 198.0000000

Root relaxation: objective 2.000000e+00, 25130 iterations, 1.91 seconds
Total elapsed time = 5.34s

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

     0     0    2.00000    0  326  198.00000    2.00000  99.0%     -    6s
H    0     0                     154.0000000    2.00000  98.7%     -    6s
H    0     0                       4.0000000    2.00000  50.0%     -    6s
H    0     0                       3.0000000    2.00000  33.3%     -    6s

Cutting planes:
  Zero half: 1

Explored 0 nodes (80108 simplex iterations) in 6.51 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%