Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:14:11 2012

Optimize a model with 23405 rows, 27722 columns and 97108 nonzeros
Presolve removed 30 rows and 4650 columns
Presolve time: 0.49s
Presolved: 23375 rows, 23072 columns, 92178 nonzeros
Variable types: 0 continuous, 23072 integer (23072 binary)
Found heuristic solution: objective 166.0000000

Root relaxation: objective 2.000000e+00, 17143 iterations, 0.94 seconds

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

     0     0    2.00000    0  244  166.00000    2.00000  98.8%     -    3s
H    0     0                     123.0000000    2.00000  98.4%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
     0     0    2.20000    0  354    4.00000    2.20000  45.0%     -    6s
H    0     0                       3.0000000    2.20000  26.7%     -    6s

Cutting planes:
  Gomory: 1
  Zero half: 5

Explored 0 nodes (65222 simplex iterations) in 6.35 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%