Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:46:48 2012

Optimize a model with 52271 rows, 46872 columns and 202606 nonzeros
Presolve removed 1101 rows and 4106 columns
Presolve time: 1.50s
Presolved: 51170 rows, 42766 columns, 195436 nonzeros
Variable types: 0 continuous, 42766 integer (42766 binary)
Found heuristic solution: objective 216.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27141    3.0000834e+00   1.435714e+01   0.000000e+00      5s
   30969    3.0000861e+00   5.432348e+02   0.000000e+00     10s
   34929    3.0000905e+00   1.483410e+01   0.000000e+00     15s
   39021    3.0000946e+00   1.131947e+02   0.000000e+00     20s
   41203    3.0000000e+00   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 3.000000e+00, 41203 iterations, 22.69 seconds
Total elapsed time = 59.35s
Total elapsed time = 60.30s

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

     0     0    3.00000    0  132  216.00000    3.00000  98.6%     -   63s
H    0     0                       3.0000000    3.00000   0.0%     -   63s

Explored 0 nodes (114180 simplex iterations) in 63.44 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%