Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:01:24 2012

Optimize a model with 20880 rows, 24806 columns and 86662 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.42s
Presolved: 21035 rows, 24804 columns, 111045 nonzeros
Variable types: 0 continuous, 24804 integer (24804 binary)
Found heuristic solution: objective 157.0000000

Root relaxation: objective 2.000000e+00, 13940 iterations, 0.64 seconds

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

     0     0    2.00000    0  212  157.00000    2.00000  98.7%     -    2s
H    0     0                     155.0000000    2.00000  98.7%     -    2s
H    0     0                       4.0000000    2.00000  50.0%     -    2s
H    0     0                       3.0000000    2.00000  33.3%     -    2s

Cutting planes:
  Zero half: 1

Explored 0 nodes (46107 simplex iterations) in 2.48 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%