Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:13:38 2012

Optimize a model with 59890 rows, 49062 columns and 227628 nonzeros
Presolve removed 886 rows and 2 columns
Presolve time: 4.30s
Presolved: 59225 rows, 49060 columns, 273725 nonzeros
Variable types: 0 continuous, 49060 integer (49060 binary)
Found heuristic solution: objective 221.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36147    3.0001327e+00   8.050833e+02   0.000000e+00      5s
   42141    3.0001685e+00   4.200000e+01   0.000000e+00     10s
   47777    3.0001822e+00   5.739194e+01   0.000000e+00     15s
   51302    3.0001901e+00   2.702092e+01   0.000000e+00     20s
   54686    3.0001974e+00   1.681073e+02   0.000000e+00     25s
   57929    3.0002032e+00   7.443861e+01   0.000000e+00     30s
   61172    3.0002096e+00   9.134339e+01   0.000000e+00     35s
   64415    3.0002149e+00   1.033880e+01   0.000000e+00     40s
   67517    3.0002167e+00   7.471591e+00   0.000000e+00     45s
   67950    3.0000000e+00   0.000000e+00   0.000000e+00     46s

Root relaxation: objective 3.000000e+00, 67950 iterations, 45.70 seconds
Total elapsed time = 83.48s
Total elapsed time = 85.17s

    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%     -   85s

Explored 0 nodes (130146 simplex iterations) in 85.36 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%