Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:49:39 2012

Optimize a model with 31145 rows, 32220 columns and 124761 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.72s
Presolved: 31322 rows, 32218 columns, 156454 nonzeros
Variable types: 0 continuous, 32218 integer (32218 binary)
Found heuristic solution: objective 179.0000000

Root relaxation: objective 2.000000e+00, 20940 iterations, 1.50 seconds

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

     0     0    2.00000    0  290  179.00000    2.00000  98.9%     -    4s
H    0     0                     143.0000000    2.00000  98.6%     -    4s
H    0     0                       4.0000000    2.00000  50.0%     -    4s
H    0     0                       3.0000000    2.00000  33.3%     -    4s

Cutting planes:
  Zero half: 1

Explored 0 nodes (68167 simplex iterations) in 5.07 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%