Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:14:38 2012

Optimize a model with 45113 rows, 42642 columns and 176952 nonzeros
Presolve removed 849 rows and 4740 columns
Presolve time: 1.17s
Presolved: 44264 rows, 37902 columns, 169724 nonzeros
Variable types: 0 continuous, 37902 integer (37902 binary)
Found heuristic solution: objective 206.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29569    3.0000781e+00   2.608615e+01   0.000000e+00      5s
   36141    3.0000804e+00   1.744828e+00   0.000000e+00     10s
   36606    3.0000000e+00   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 3.000000e+00, 36606 iterations, 10.39 seconds
Total elapsed time = 37.67s
Total elapsed time = 41.15s

    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%     -   42s

Explored 0 nodes (102889 simplex iterations) in 42.28 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%