Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:12:53 2012

Optimize a model with 31433 rows, 34782 columns and 128152 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.74s
Presolved: 31617 rows, 34780 columns, 162410 nonzeros
Variable types: 0 continuous, 34780 integer (34780 binary)
Found heuristic solution: objective 186.0000000

Root relaxation: objective 2.000000e+00, 21479 iterations, 1.58 seconds

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

     0     0    2.00000    0  270  186.00000    2.00000  98.9%     -    4s
H    0     0                     144.0000000    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
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    4s

Cutting planes:
  Gomory: 1
  Zero half: 23

Explored 0 nodes (69206 simplex iterations) in 4.94 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%