Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:27:47 2012

Optimize a model with 23907 rows, 29756 columns and 100618 nonzeros
Presolve removed 37 rows and 6022 columns
Presolve time: 0.52s
Presolved: 23870 rows, 23734 columns, 94320 nonzeros
Variable types: 0 continuous, 23734 integer (23734 binary)
Found heuristic solution: objective 172.0000000

Root relaxation: objective 2.000000e+00, 16342 iterations, 0.91 seconds

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

     0     0    2.00000    0  188  172.00000    2.00000  98.8%     -    3s
H    0     0                     161.0000000    2.00000  98.8%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
H    0     0                       3.0000000    2.00000  33.3%     -    3s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    3s

Cutting planes:
  Gomory: 1
  Zero half: 7

Explored 0 nodes (53610 simplex iterations) in 3.22 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%