Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:21 2012

Optimize a model with 331 rows, 338 columns and 1163 nonzeros
Presolve removed 0 rows and 27 columns
Presolve time: 0.00s
Presolved: 331 rows, 311 columns, 1136 nonzeros
Variable types: 0 continuous, 311 integer (310 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 195 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  129   55.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     0    0.17668    0  131   31.00000    0.17668  99.4%     -    0s
H    0     0                      24.0000000    0.17668  99.3%     -    0s
     0     0    0.78698    0  133   24.00000    0.78698  96.7%     -    0s
H    0     0                      23.0000000    0.78698  96.6%     -    0s
     0     0    0.78698    0  133   23.00000    0.78698  96.6%     -    0s
H    0     0                      19.0000000    0.78698  95.9%     -    0s
     0     2    0.82698    0  133   19.00000    0.82698  95.6%     -    0s
H   50    48                      12.0000000    0.99588  91.7%  24.4    0s
H   54    29                       9.0000000    0.99588  88.9%  25.8    0s
H  143    58                       8.0000000    1.00000  87.5%  25.4    0s
H  242    51                       7.0000000    1.00000  85.7%  25.1    0s

Cutting planes:
  Gomory: 4
  Zero half: 5

Explored 411 nodes (12338 simplex iterations) in 0.41 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%