Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:22:12 2012

Optimize a model with 36665 rows, 35910 columns and 144961 nonzeros
Presolve removed 785 rows and 5105 columns
Presolve time: 0.90s
Presolved: 35880 rows, 30805 columns, 137588 nonzeros
Variable types: 0 continuous, 30805 integer (30805 binary)
Found heuristic solution: objective 189.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23380    3.0000716e+00   4.072230e+00   0.000000e+00      5s
   25236    3.0000000e+00   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.000000e+00, 25236 iterations, 6.38 seconds
Total elapsed time = 16.39s
Total elapsed time = 20.60s

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

*    0     0               0       3.0000000    3.00000   0.0%     -   21s

Explored 0 nodes (71013 simplex iterations) in 21.28 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%