Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:09:43 2012

Optimize a model with 2515 rows, 1190 columns and 8566 nonzeros
Presolve removed 648 rows and 2 columns
Presolve time: 0.10s
Presolved: 1867 rows, 1188 columns, 6994 nonzeros
Variable types: 0 continuous, 1188 integer (1188 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 4.000000e+00, 1738 iterations, 0.07 seconds

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

     0     0    4.00000    0   36   34.00000    4.00000  88.2%     -    0s
H    0     0                      32.0000000    4.00000  87.5%     -    0s
H    0     0                       7.0000000    4.00000  42.9%     -    0s
*    0     0               0       4.0000000    4.00000   0.0%     -    0s

Explored 0 nodes (3909 simplex iterations) in 0.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%