Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:51:04 2012

Optimize a model with 29519 rows, 32580 columns and 120238 nonzeros
Presolve removed 26 rows and 4322 columns
Presolve time: 0.66s
Presolved: 29493 rows, 28258 columns, 115590 nonzeros
Variable types: 0 continuous, 28258 integer (28258 binary)
Found heuristic solution: objective 180.0000000

Root relaxation: objective 2.000000e+00, 19987 iterations, 1.16 seconds

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

     0     0    2.00000    0  280  180.00000    2.00000  98.9%     -    3s
H    0     0                     141.0000000    2.00000  98.6%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
     0     0    2.66667    0 4486    4.00000    2.66667  33.3%     -    7s
     0     0    2.66667    0 9962    4.00000    2.66667  33.3%     -   13s
H    0     0                       3.0000000    2.66667  11.1%     -   20s

Cutting planes:
  Gomory: 1
  Clique: 2
  Zero half: 32

Explored 0 nodes (77777 simplex iterations) in 20.98 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%