Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:20:42 2012

Optimize a model with 25180 rows, 28730 columns and 103426 nonzeros
Presolve removed 32 rows and 5072 columns
Presolve time: 0.54s
Presolved: 25148 rows, 23658 columns, 98058 nonzeros
Variable types: 0 continuous, 23658 integer (23658 binary)
Found heuristic solution: objective 169.0000000

Root relaxation: objective 2.000000e+00, 17813 iterations, 1.19 seconds

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

     0     0    2.00000    0  258  169.00000    2.00000  98.8%     -    3s
H    0     0                     168.0000000    2.00000  98.8%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
H    0     0                       3.0000000    2.00000  33.3%     -    3s

Cutting planes:
  Zero half: 1

Explored 0 nodes (54933 simplex iterations) in 3.64 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%