Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:49:05 2012

Optimize a model with 60939 rows, 48620 columns and 230338 nonzeros
Presolve removed 1322 rows and 2 columns
Presolve time: 4.45s
Presolved: 59837 rows, 48618 columns, 274896 nonzeros
Variable types: 0 continuous, 48618 integer (48618 binary)
Found heuristic solution: objective 220.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32386    3.0000871e+00   1.364286e+01   0.000000e+00      5s
   36659    3.0000913e+00   1.403997e+02   0.000000e+00     10s
   40067    3.0000943e+00   6.328286e+01   0.000000e+00     15s
   43759    3.0000987e+00   1.776415e+01   0.000000e+00     20s
   47309    3.0001015e+00   2.763525e+01   0.000000e+00     25s
   50433    3.0001043e+00   4.042543e+01   0.000000e+00     30s
   53218    3.0000000e+00   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 3.000000e+00, 53218 iterations, 34.58 seconds

    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%     -   80s

Explored 0 nodes (93384 simplex iterations) in 80.24 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%