Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:29:07 2012

Optimize a model with 28379 rows, 29756 columns and 114034 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.62s
Presolved: 28549 rows, 29754 columns, 143288 nonzeros
Variable types: 0 continuous, 29754 integer (29754 binary)
Found heuristic solution: objective 172.0000000

Root relaxation: objective 2.000000e+00, 17407 iterations, 0.99 seconds

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

     0     0    2.00000    0  252  172.00000    2.00000  98.8%     -    3s
H    0     0                     136.0000000    2.00000  98.5%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
     0     0    2.25000    0 8711    4.00000    2.25000  43.8%     -    9s
     0     0    2.40000    0 5683    4.00000    2.40000  40.0%     -   22s
     0     0    2.40000    0 9363    4.00000    2.40000  40.0%     -   28s
     0     0    2.40000    0  152    4.00000    2.40000  40.0%     -   49s
H    0     0                       3.0000000    2.40000  20.0%     -   49s

Cutting planes:
  Zero half: 7

Explored 0 nodes (159476 simplex iterations) in 49.51 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%