Gurobi 5.0.1 (linux64) logging started Fri Nov 16 02:30:23 2012

Optimize a model with 8447 rows, 1122 columns and 26299 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.10s
Presolved: 8445 rows, 1120 columns, 27962 nonzeros
Variable types: 0 continuous, 1120 integer (1120 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.462264e+00, 7537 iterations, 0.54 seconds

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

     0     0    3.46226    0  954   33.00000    3.46226  89.5%     -    1s
     0     0    5.00000    0   58   33.00000    5.00000  84.8%     -    2s
H    0     0                      25.0000000    5.00000  80.0%     -    2s
H    0     0                      10.0000000    5.00000  50.0%     -    2s
     0     0    5.57143    0  144   10.00000    5.57143  44.3%     -    2s
H    0     0                       8.0000000    5.57143  30.4%     -    2s
     0     0    5.63636    0  329    8.00000    5.63636  29.5%     -    3s
*    0     0               0       7.0000000    7.00000   0.0%     -    4s

Explored 0 nodes (21101 simplex iterations) in 4.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%