Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:04:55 2012

Optimize a model with 17919 rows, 25760 columns and 78718 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.35s
Presolved: 18077 rows, 25758 columns, 104094 nonzeros
Variable types: 0 continuous, 25758 integer (25758 binary)
Found heuristic solution: objective 160.0000000

Root relaxation: objective 2.000000e+00, 12213 iterations, 0.53 seconds

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

     0     0    2.00000    0  106  160.00000    2.00000  98.8%     -    1s
H    0     0                       4.0000000    2.00000  50.0%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s

Cutting planes:
  Zero half: 1

Explored 0 nodes (38337 simplex iterations) in 1.88 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%