Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:54:35 2012

Optimize a model with 48143 rows, 41820 columns and 185230 nonzeros
Presolve removed 45 rows and 3470 columns
Presolve time: 1.15s
Presolved: 48098 rows, 38350 columns, 181229 nonzeros
Variable types: 0 continuous, 38350 integer (38350 binary)
Found heuristic solution: objective 204.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30762    2.5001298e+00   4.741667e+01   0.000000e+00      5s
   44826    2.6668113e+00   7.347849e+01   0.000000e+00     10s
   49764    2.6789916e+00   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 2.678992e+00, 49764 iterations, 13.03 seconds
Total elapsed time = 28.31s
Total elapsed time = 41.64s
Total elapsed time = 48.64s
Total elapsed time = 55.60s

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

     0     0    2.67899    0 7278  204.00000    2.67899  98.7%     -   57s
H    0     0                     146.0000000    2.67899  98.2%     -   79s
H    0     0                       3.0000000    2.67899  10.7%     -   79s

Explored 0 nodes (214477 simplex iterations) in 79.82 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%