Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:55:43 2012

Optimize a model with 14160 rows, 6480 columns and 48640 nonzeros
Presolve removed 2480 rows and 0 columns
Presolve time: 0.30s
Presolved: 11680 rows, 6480 columns, 42720 nonzeros
Variable types: 0 continuous, 6480 integer (6480 binary)
Found heuristic solution: objective 51.0000000

Root relaxation: objective 3.000000e+00, 12258 iterations, 2.41 seconds
Total elapsed time = 5.46s

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

     0     0    3.00000    0  151   51.00000    3.00000  94.1%     -    9s
H    0     0                       4.0000000    3.00000  25.0%     -    9s
H    0     0                       3.0000000    3.00000   0.0%     -    9s

Explored 0 nodes (48224 simplex iterations) in 9.46 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%