Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:53 2012

Optimize a model with 309 rows, 320 columns and 1090 nonzeros
Presolve removed 0 rows and 23 columns
Presolve time: 0.00s
Presolved: 309 rows, 297 columns, 1067 nonzeros
Variable types: 0 continuous, 297 integer (296 binary)
Found heuristic solution: objective 46.0000000

Root relaxation: objective 0.000000e+00, 206 iterations, 0.00 seconds

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

     0     0    0.00000    0  123   46.00000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
     0     0    0.13656    0  125   30.00000    0.13656   100%     -    0s
H    0     0                      26.0000000    0.13656  99.5%     -    0s
H    0     0                      22.0000000    0.13656  99.4%     -    0s
     0     0    0.72475    0  128   22.00000    0.72475  96.7%     -    0s
H    0     0                      21.0000000    0.72475  96.5%     -    0s
     0     0    0.72475    0  130   21.00000    0.72475  96.5%     -    0s
     0     0    0.72475    0  130   21.00000    0.72475  96.5%     -    0s
H    0     0                      15.0000000    0.72475  95.2%     -    0s
     0     2    0.73111    0  130   15.00000    0.73111  95.1%     -    0s
H   27    18                       7.0000000    1.00000  85.7%  26.5    0s

Cutting planes:
  Gomory: 4
  Mod-K: 3

Explored 316 nodes (7556 simplex iterations) in 0.27 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%