Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:58:58 2012

Optimize a model with 59019 rows, 51756 columns and 227679 nonzeros
Presolve removed 456 rows and 2 columns
Presolve time: 1.43s
Presolved: 58790 rows, 51754 columns, 277557 nonzeros
Variable types: 0 continuous, 51754 integer (51754 binary)
Found heuristic solution: objective 227.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34887    3.0001062e+00   6.331818e+02   0.000000e+00      5s
   46133    3.0001512e+00   3.439006e+01   0.000000e+00     10s
   49658    3.0001600e+00   2.695524e+02   0.000000e+00     15s
   53183    3.0001684e+00   1.093239e+02   0.000000e+00     20s
   56285    3.0001736e+00   2.832109e+01   0.000000e+00     25s
   59669    3.0001801e+00   1.401577e+01   0.000000e+00     30s
   62771    3.0001842e+00   1.000655e+01   0.000000e+00     35s
   66155    3.0001869e+00   6.003076e+00   0.000000e+00     40s
   66822    3.0000000e+00   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 3.000000e+00, 66822 iterations, 41.15 seconds
Total elapsed time = 75.68s

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

     0     0    3.00000    0   66  227.00000    3.00000  98.7%     -   78s
H    0     0                       3.0000000    3.00000   0.0%     -   79s

Explored 0 nodes (132773 simplex iterations) in 79.00 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%