Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:10:37 2012

Optimize a model with 41614 rows, 42230 columns and 166048 nonzeros
Presolve removed 822 rows and 2 columns
Presolve time: 1.03s
Presolved: 40997 rows, 42228 columns, 205625 nonzeros
Variable types: 0 continuous, 42228 integer (42228 binary)
Found heuristic solution: objective 205.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31383    3.0000841e+00   4.113084e+01   0.000000e+00      5s
   37143    3.0000906e+00   3.510860e+01   0.000000e+00     10s
   41354    3.0000000e+00   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 3.000000e+00, 41354 iterations, 14.26 seconds
Total elapsed time = 34.57s
Total elapsed time = 35.49s

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

     0     0    3.00000    0    8  205.00000    3.00000  98.5%     -   39s
H    0     0                      78.0000000    3.00000  96.2%     -   40s
H    0     0                       3.0000000    3.00000   0.0%     -   40s

Explored 0 nodes (102539 simplex iterations) in 40.22 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%