Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:13:27 2012

Optimize a model with 42847 rows, 42642 columns and 170154 nonzeros
Presolve removed 442 rows and 5770 columns
Presolve time: 1.11s
Presolved: 42405 rows, 36872 columns, 162944 nonzeros
Variable types: 0 continuous, 36872 integer (36872 binary)
Found heuristic solution: objective 206.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25672    3.0000837e+00   3.831123e+01   0.000000e+00      5s
   29836    3.0000000e+00   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.000000e+00, 29836 iterations, 7.93 seconds
Total elapsed time = 23.36s

    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%     -   24s

Explored 0 nodes (84288 simplex iterations) in 24.91 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%