Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:17:24 2012

Optimize a model with 443 rows, 433 columns and 1538 nonzeros
Presolve removed 0 rows and 29 columns
Presolve time: 0.00s
Presolved: 443 rows, 404 columns, 1509 nonzeros
Variable types: 0 continuous, 404 integer (403 binary)
Found heuristic solution: objective 72.0000000

Root relaxation: objective 0.000000e+00, 251 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  167   72.00000    0.00000   100%     -    0s
H    0     0                      69.0000000    0.00000   100%     -    0s
H    0     0                      65.0000000    0.00000   100%     -    0s
H    0     0                      57.0000000    0.00000   100%     -    0s
     0     0    0.31850    0  169   57.00000    0.31850  99.4%     -    0s
H    0     0                      44.0000000    0.31850  99.3%     -    0s
     0     0    0.74715    0  172   44.00000    0.74715  98.3%     -    0s
H    0     0                      34.0000000    0.74715  97.8%     -    0s
     0     0    0.74718    0  175   34.00000    0.74718  97.8%     -    0s
     0     0    0.74718    0  175   34.00000    0.74718  97.8%     -    0s
     0     2    0.75521    0  174   34.00000    0.75521  97.8%     -    0s
H   22    22                      22.0000000    1.00000  95.5%  54.6    0s
H   27    27                      15.0000000    1.00000  93.3%  46.9    0s
H   36    21                      12.0000000    1.00000  91.7%  43.8    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 944 nodes (28269 simplex iterations) in 1.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%