Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:53:15 2012

Optimize a model with 9489 rows, 5402 columns and 33505 nonzeros
Presolve removed 1171 rows and 75 columns
Presolve time: 0.40s
Presolved: 8318 rows, 5327 columns, 30284 nonzeros
Variable types: 0 continuous, 5327 integer (5327 binary)
Found heuristic solution: objective 71.0000000

Root relaxation: objective 3.000000e+00, 5644 iterations, 0.66 seconds

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

     0     0    3.00000    0   46   71.00000    3.00000  95.8%     -    4s
H    0     0                      61.0000000    3.00000  95.1%     -    4s
H    0     0                       5.0000000    3.00000  40.0%     -    4s
     0     0    3.00000    0   73    5.00000    3.00000  40.0%     -    4s
H    0     0                       4.0000000    3.00000  25.0%     -    4s
H    0     0                       3.0000000    3.00000   0.0%     -    4s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (29991 simplex iterations) in 4.66 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%