Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:27 2012

Optimize a model with 331 rows, 340 columns and 1165 nonzeros
Presolve removed 0 rows and 19 columns
Presolve time: 0.00s
Presolved: 331 rows, 321 columns, 1146 nonzeros
Variable types: 0 continuous, 321 integer (320 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 225 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  132   55.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     0    0.27607    0  134   32.00000    0.27607  99.1%     -    0s
H    0     0                      25.0000000    0.27607  98.9%     -    0s
     0     0    0.92442    0  137   25.00000    0.92442  96.3%     -    0s
H    0     0                      19.0000000    0.92442  95.1%     -    0s
     0     0    0.92442    0  137   19.00000    0.92442  95.1%     -    0s
     0     2    0.92768    0  137   19.00000    0.92768  95.1%     -    0s
H   27    22                       7.0000000    1.00000  85.7%  34.9    0s

Cutting planes:
  Gomory: 4
  Zero half: 1
  Mod-K: 2

Explored 438 nodes (11551 simplex iterations) in 0.38 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%