Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:10:04 2012

Optimize a model with 60029 rows, 53130 columns and 232068 nonzeros
Presolve removed 487 rows and 5752 columns
Presolve time: 1.61s
Presolved: 59542 rows, 47378 columns, 224650 nonzeros
Variable types: 0 continuous, 47378 integer (47378 binary)
Found heuristic solution: objective 230.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36988    3.0000850e+00   9.560000e+02   0.000000e+00      5s
   44007    3.0001345e+00   3.053333e+02   0.000000e+00     10s
   49144    3.0001533e+00   3.942167e+03   0.000000e+00     15s
   53797    3.0001637e+00   2.685232e+02   0.000000e+00     20s
   56899    3.0001688e+00   9.441913e+01   0.000000e+00     25s
   57585    3.0000000e+00   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 3.000000e+00, 57585 iterations, 26.41 seconds
Total elapsed time = 76.39s
Total elapsed time = 86.91s

    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%     -   89s

Explored 0 nodes (133443 simplex iterations) in 89.12 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%