Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:07:04 2012

Optimize a model with 55470 rows, 49062 columns and 214368 nonzeros
Presolve removed 444 rows and 2 columns
Presolve time: 1.33s
Presolved: 55247 rows, 49060 columns, 261606 nonzeros
Variable types: 0 continuous, 49060 integer (49060 binary)
Found heuristic solution: objective 221.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33683    3.0000735e+00   4.880000e+01   0.000000e+00      5s
   40477    3.0000909e+00   2.658837e+02   0.000000e+00     10s
   44861    3.0000949e+00   2.757045e+02   0.000000e+00     15s
   49108    3.0000987e+00   1.130500e+02   0.000000e+00     20s
   52944    3.0001012e+00   1.909997e+01   0.000000e+00     25s
   56917    3.0001044e+00   9.040212e+01   0.000000e+00     30s
   58541    3.0000000e+00   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 3.000000e+00, 58541 iterations, 32.08 seconds
Total elapsed time = 62.94s

    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%     -   63s

Explored 0 nodes (99219 simplex iterations) in 63.50 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%