Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:24:21 2012

Optimize a model with 59051 rows, 52212 columns and 228226 nonzeros
Presolve removed 914 rows and 2 columns
Presolve time: 1.61s
Presolved: 58365 rows, 52210 columns, 277420 nonzeros
Variable types: 0 continuous, 52210 integer (52210 binary)
Found heuristic solution: objective 228.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30034    3.0000867e+00   4.333333e+01   0.000000e+00      5s
   34514    3.0000902e+00   8.554993e+02   0.000000e+00     10s
   38014    3.0000937e+00   3.564108e+01   0.000000e+00     15s
   41514    3.0000971e+00   3.569608e+01   0.000000e+00     20s
   41960    3.0000000e+00   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 3.000000e+00, 41960 iterations, 20.72 seconds
Total elapsed time = 61.72s
Total elapsed time = 68.24s

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

     0     0    3.00000    0   52  228.00000    3.00000  98.7%     -   69s
H    0     0                       3.0000000    3.00000   0.0%     -   69s

Explored 0 nodes (105029 simplex iterations) in 69.20 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%