Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:25:22 2012

Optimize a model with 54749 rows, 48180 columns and 211333 nonzeros
Presolve removed 462 rows and 4820 columns
Presolve time: 1.34s
Presolved: 54287 rows, 43360 columns, 204924 nonzeros
Variable types: 0 continuous, 43360 integer (43360 binary)
Found heuristic solution: objective 219.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36480    3.0000853e+00   1.124232e+02   0.000000e+00      5s
   40968    3.0000915e+00   1.990000e+02   0.000000e+00     10s
   44912    3.0000946e+00   3.812417e+01   0.000000e+00     15s
   48584    3.0000978e+00   1.351170e+01   0.000000e+00     20s
   52256    3.0001006e+00   6.474878e+01   0.000000e+00     25s
   55928    3.0001037e+00   6.628225e+00   0.000000e+00     30s
   58206    3.0000000e+00   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 3.000000e+00, 58206 iterations, 33.07 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%     -   55s

Explored 0 nodes (100143 simplex iterations) in 55.49 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%