Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:31:52 2012

Optimize a model with 38772 rows, 36672 columns and 152034 nonzeros
Presolve removed 27 rows and 4777 columns
Presolve time: 0.83s
Presolved: 38745 rows, 31895 columns, 146853 nonzeros
Variable types: 0 continuous, 31895 integer (31895 binary)
Found heuristic solution: objective 191.0000000

Root relaxation: objective 2.000000e+00, 23807 iterations, 1.73 seconds
Total elapsed time = 5.02s

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

     0     0    2.00000    0  322  191.00000    2.00000  99.0%     -    5s
H    0     0                     180.0000000    2.00000  98.9%     -    5s
H    0     0                       4.0000000    2.00000  50.0%     -    5s
H    0     0                       3.0000000    2.00000  33.3%     -    5s

Cutting planes:
  Zero half: 2

Explored 0 nodes (79650 simplex iterations) in 6.03 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%