Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:03:47 2012

Optimize a model with 62719 rows, 50400 columns and 237438 nonzeros
Presolve removed 1346 rows and 2 columns
Presolve time: 4.78s
Presolved: 61597 rows, 50398 columns, 283706 nonzeros
Variable types: 0 continuous, 50398 integer (50398 binary)
Found heuristic solution: objective 224.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36750    3.0000957e+00   3.933600e+02   0.000000e+00      5s
   43474    3.0001372e+00   8.425000e+01   0.000000e+00     10s
   47862    3.0001535e+00   1.820000e+01   0.000000e+00     15s
   52152    3.0001593e+00   3.560476e+01   0.000000e+00     20s
   55727    3.0001607e+00   5.031567e+02   0.000000e+00     25s
   58730    3.0001617e+00   1.898479e+02   0.000000e+00     30s
   62162    3.0001630e+00   1.011335e+01   0.000000e+00     35s
   65001    3.0000000e+00   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 3.000000e+00, 65001 iterations, 39.40 seconds
Total elapsed time = 84.76s
Total elapsed time = 128.35s

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

     0     0    3.00000    0  154  224.00000    3.00000  98.7%     -  129s
H    0     0                       4.0000000    3.00000  25.0%     -  129s
H    0     0                       3.0000000    3.00000   0.0%     -  130s

Explored 0 nodes (168934 simplex iterations) in 130.01 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%