Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:30:01 2012

Optimize a model with 53888 rows, 45582 columns and 206182 nonzeros
Presolve removed 428 rows and 2 columns
Presolve time: 1.27s
Presolved: 53673 rows, 45580 columns, 249984 nonzeros
Variable types: 0 continuous, 45580 integer (45580 binary)
Found heuristic solution: objective 213.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27565    3.0000819e+00   5.866667e+01   0.000000e+00      5s
   32020    3.0000854e+00   2.319741e+01   0.000000e+00     10s
   35935    3.0000893e+00   1.764873e+02   0.000000e+00     15s
   39850    3.0000929e+00   8.071809e+00   0.000000e+00     20s
   43630    3.0000968e+00   1.659107e+01   0.000000e+00     25s
   47410    3.0000999e+00   3.094937e+00   0.000000e+00     30s
   47928    3.0000000e+00   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 3.000000e+00, 47928 iterations, 30.80 seconds
Total elapsed time = 71.89s
Total elapsed time = 77.10s

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

     0     0    3.00000    0   93  213.00000    3.00000  98.6%     -   77s
H    0     0                       3.0000000    3.00000   0.0%     -   77s

Explored 0 nodes (147104 simplex iterations) in 77.88 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%