Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:21:47 2012

Optimize a model with 62999 rows, 50850 columns and 238723 nonzeros
Presolve removed 1802 rows and 2 columns
Presolve time: 4.81s
Presolved: 61422 rows, 50848 columns, 284304 nonzeros
Variable types: 0 continuous, 50848 integer (50848 binary)
Found heuristic solution: objective 225.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28365    3.0000848e+00   5.750000e+01   0.000000e+00      5s
   33227    3.0000884e+00   4.844955e+01   0.000000e+00     10s
   36802    3.0000922e+00   1.994258e+01   0.000000e+00     15s
   40234    3.0000949e+00   2.128100e+02   0.000000e+00     20s
   43380    3.0000975e+00   1.235854e+02   0.000000e+00     25s
   46955    3.0001007e+00   6.653571e+01   0.000000e+00     30s
   50244    3.0001033e+00   2.487062e+01   0.000000e+00     35s
   53819    3.0001071e+00   4.550847e+00   0.000000e+00     40s
   55082    3.0000000e+00   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 3.000000e+00, 55082 iterations, 41.58 seconds
Total elapsed time = 88.99s
Total elapsed time = 97.49s

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

     0     0    3.00000    0   64  225.00000    3.00000  98.7%     -  100s
H    0     0                       3.0000000    3.00000   0.0%     -  100s

Explored 0 nodes (153610 simplex iterations) in 100.17 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%