Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:20:24 2012

Optimize a model with 45125 rows, 43056 columns and 177397 nonzeros
Presolve removed 854 rows and 4970 columns
Presolve time: 1.12s
Presolved: 44271 rows, 38086 columns, 169931 nonzeros
Variable types: 0 continuous, 38086 integer (38086 binary)
Found heuristic solution: objective 207.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31848    3.0000872e+00   4.661111e+01   0.000000e+00      5s
   37552    3.0000952e+00   5.069359e+00   0.000000e+00     10s
   40761    3.0000000e+00   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 3.000000e+00, 40761 iterations, 12.37 seconds
Total elapsed time = 26.62s

    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%     -   28s

Explored 0 nodes (92382 simplex iterations) in 28.86 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%