Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:15:22 2012

Optimize a model with 56025 rows, 47742 columns and 214728 nonzeros
Presolve removed 889 rows and 3272 columns
Presolve time: 1.41s
Presolved: 55136 rows, 44470 columns, 208772 nonzeros
Variable types: 0 continuous, 44470 integer (44470 binary)
Found heuristic solution: objective 218.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   35908    3.0000864e+00   1.961702e+01   0.000000e+00      5s
   42098    3.0000935e+00   1.837257e+01   0.000000e+00     10s
   46208    3.0000976e+00   6.799971e+02   0.000000e+00     15s
   50318    3.0001021e+00   1.665000e+01   0.000000e+00     20s
   54154    3.0001063e+00   2.557582e+01   0.000000e+00     25s
   56890    3.0000000e+00   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 3.000000e+00, 56890 iterations, 28.71 seconds
Total elapsed time = 92.28s
Total elapsed time = 97.72s

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

     0     0    3.00000    0  606  218.00000    3.00000  98.6%     -  102s
H    0     0                       3.0000000    3.00000   0.0%     -  103s

Explored 0 nodes (172288 simplex iterations) in 103.58 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%