Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:56:45 2012

Optimize a model with 48959 rows, 41820 columns and 187678 nonzeros
Presolve removed 1243 rows and 3470 columns
Presolve time: 1.23s
Presolved: 47716 rows, 38350 columns, 180682 nonzeros
Variable types: 0 continuous, 38350 integer (38350 binary)
Found heuristic solution: objective 204.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25608    3.0000827e+00   3.050000e+01   0.000000e+00      5s
   30984    3.0000869e+00   1.093829e+02   0.000000e+00     10s
   35720    3.0000926e+00   2.650917e+01   0.000000e+00     15s
   40063    3.0000000e+00   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 3.000000e+00, 40063 iterations, 19.97 seconds
Total elapsed time = 49.15s
Total elapsed time = 50.33s

    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%     -   51s

Explored 0 nodes (98930 simplex iterations) in 51.06 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%