Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:43:20 2012

Optimize a model with 13871 rows, 18632 columns and 59566 nonzeros
Presolve removed 33 rows and 4218 columns
Presolve time: 0.26s
Presolved: 13838 rows, 14414 columns, 55146 nonzeros
Variable types: 0 continuous, 14414 integer (14414 binary)
Found heuristic solution: objective 136.0000000

Root relaxation: objective 2.000000e+00, 8904 iterations, 0.40 seconds

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

     0     0    2.00000    0  150  136.00000    2.00000  98.5%     -    1s
H    0     0                      52.0000000    2.00000  96.2%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    1s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (31737 simplex iterations) in 1.49 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%