Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:58:55 2012

Optimize a model with 7738 rows, 11990 columns and 34660 nonzeros
Presolve removed 27 rows and 2727 columns
Presolve time: 0.14s
Presolved: 7711 rows, 9263 columns, 31793 nonzeros
Variable types: 0 continuous, 9263 integer (9263 binary)
Found heuristic solution: objective 109.0000000

Root relaxation: objective 2.000000e+00, 4752 iterations, 0.11 seconds

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

     0     0    2.00000    0   42  109.00000    2.00000  98.2%     -    0s
H    0     0                      41.0000000    2.00000  95.1%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (15906 simplex iterations) in 0.51 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%