Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:15:31 2012

Optimize a model with 12863 rows, 18090 columns and 56010 nonzeros
Presolve removed 38 rows and 4826 columns
Presolve time: 0.22s
Presolved: 12825 rows, 13264 columns, 50994 nonzeros
Variable types: 0 continuous, 13264 integer (13264 binary)
Found heuristic solution: objective 134.0000000

Root relaxation: objective 2.000000e+00, 8402 iterations, 0.30 seconds

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

     0     0    2.00000    0  142  134.00000    2.00000  98.5%     -    1s
H    0     0                     113.0000000    2.00000  98.2%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s

Cutting planes:
  Zero half: 4

Explored 0 nodes (27516 simplex iterations) in 1.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%