Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:28:21 2012

Optimize a model with 62600 rows, 53592 columns and 240238 nonzeros
Presolve removed 489 rows and 5777 columns
Presolve time: 1.62s
Presolved: 62111 rows, 47815 columns, 232770 nonzeros
Variable types: 0 continuous, 47815 integer (47815 binary)
Found heuristic solution: objective 231.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33747    3.0000846e+00   3.920000e+01   0.000000e+00      5s
   38067    3.0000889e+00   1.350840e+02   0.000000e+00     10s
   42099    3.0000896e+00   1.129321e+01   0.000000e+00     15s
   45699    3.0000945e+00   1.204828e+01   0.000000e+00     20s
   49299    3.0000999e+00   7.687399e+00   0.000000e+00     25s
   50531    3.0000000e+00   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 3.000000e+00, 50531 iterations, 27.14 seconds
Total elapsed time = 50.95s
Total elapsed time = 56.69s

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    3.00000    0  120  231.00000    3.00000  98.7%     -   60s
H    0     0                       3.0000000    3.00000   0.0%     -   60s

Explored 0 nodes (140414 simplex iterations) in 60.83 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%