Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:15 2012

Optimize a model with 1393 rows, 76 columns and 2786 nonzeros
Presolve removed 981 rows and 0 columns
Presolve time: 0.03s
Presolved: 412 rows, 76 columns, 2511 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.229757e+01, 212 iterations, 0.01 seconds

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

     0     0   12.29757    0   71    7.00000   12.29757  75.7%     -    0s
H    0     0                       8.0000000   12.29757  53.7%     -    0s
     0     0   11.98861    0   73    8.00000   11.98861  49.9%     -    0s
     0     0   11.83149    0   76    8.00000   11.83149  47.9%     -    0s
     0     0   11.79711    0   76    8.00000   11.79711  47.5%     -    0s
     0     0   11.78443    0   76    8.00000   11.78443  47.3%     -    0s
H    0     0                       9.0000000   11.78443  30.9%     -    0s
     0     0   11.77451    0   76    9.00000   11.77451  30.8%     -    0s
     0     0   11.75152    0   76    9.00000   11.75152  30.6%     -    0s
     0     0   11.73799    0   76    9.00000   11.73799  30.4%     -    0s
     0     0   11.73415    0   76    9.00000   11.73415  30.4%     -    0s
     0     0   11.73077    0   76    9.00000   11.73077  30.3%     -    0s
     0     0   11.73073    0   76    9.00000   11.73073  30.3%     -    0s
     0     2   11.73041    0   76    9.00000   11.73041  30.3%     -    0s

Cutting planes:
  Clique: 24
  Zero half: 7

Explored 27 nodes (2050 simplex iterations) in 0.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%