Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:48:57 2012

Optimize a model with 12383 rows, 20880 columns and 57310 nonzeros
Presolve removed 50 rows and 6914 columns
Presolve time: 0.23s
Presolved: 12333 rows, 13966 columns, 50226 nonzeros
Variable types: 0 continuous, 13966 integer (13966 binary)
Found heuristic solution: objective 144.0000000

Root relaxation: objective 2.000000e+00, 8813 iterations, 0.34 seconds

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

     0     0    2.00000    0  110  144.00000    2.00000  98.6%     -    1s
H    0     0                      41.0000000    2.00000  95.1%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s

Explored 0 nodes (30431 simplex iterations) in 1.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%