Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:20:12 2012

Optimize a model with 71204 rows, 55460 columns and 267898 nonzeros
Presolve removed 960 rows and 4700 columns (presolve time = 5s) ...
Presolve removed 962 rows and 4702 columns
Presolve time: 5.58s
Presolved: 70242 rows, 50758 columns, 260250 nonzeros
Variable types: 0 continuous, 50758 integer (50758 binary)
Found heuristic solution: objective 235.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27945    3.0000892e+00   2.520968e+01   0.000000e+00      5s
   31745    3.0000917e+00   6.657593e+01   0.000000e+00     10s
   34937    3.0000946e+00   1.784178e+01   0.000000e+00     15s
   38129    3.0000975e+00   2.472712e+01   0.000000e+00     20s
   41321    3.0001000e+00   7.639489e+01   0.000000e+00     25s
   44209    3.0001021e+00   1.689880e+01   0.000000e+00     30s
   47097    3.0001039e+00   4.840281e+01   0.000000e+00     35s
   49985    3.0001061e+00   9.186465e+01   0.000000e+00     40s
   53025    3.0001086e+00   1.112402e+02   0.000000e+00     45s
   56217    3.0001114e+00   2.171570e+02   0.000000e+00     50s
   58801    3.0001133e+00   1.153863e+01   0.000000e+00     55s
   61537    3.0001152e+00   1.907658e+01   0.000000e+00     60s
   63210    3.0000000e+00   0.000000e+00   0.000000e+00     63s

Root relaxation: objective 3.000000e+00, 63210 iterations, 62.84 seconds
Total elapsed time = 133.89s
Total elapsed time = 139.82s
Total elapsed time = 140.55s

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

     0     0    3.00000    0    6  235.00000    3.00000  98.7%     -  141s
H    0     0                       3.0000000    3.00000   0.0%     -  141s

Explored 0 nodes (166411 simplex iterations) in 141.09 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%