Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:17:09 2012

Optimize a model with 46639 rows, 45156 columns and 184014 nonzeros
Presolve removed 32 rows and 6362 columns
Presolve time: 1.01s
Presolved: 46607 rows, 38794 columns, 177214 nonzeros
Variable types: 0 continuous, 38794 integer (38794 binary)
Found heuristic solution: objective 212.0000000

Root relaxation: objective 2.000000e+00, 27238 iterations, 2.06 seconds
Total elapsed time = 6.11s

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

     0     0    2.00000    0  332  212.00000    2.00000  99.1%     -    7s
H    0     0                     181.0000000    2.00000  98.9%     -    7s
H    0     0                       4.0000000    2.00000  50.0%     -    7s
H    0     0                       3.0000000    2.00000  33.3%     -    7s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    7s

Cutting planes:
  Gomory: 1
  Zero half: 25

Explored 0 nodes (91699 simplex iterations) in 7.65 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%