Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:15 2012

Optimize a model with 271 rows, 290 columns and 965 nonzeros
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 271 rows, 265 columns, 940 nonzeros
Variable types: 0 continuous, 265 integer (264 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 0.000000e+00, 178 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  106   45.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.14664    0  108   23.00000    0.14664  99.4%     -    0s
H    0     0                      22.0000000    0.14664  99.3%     -    0s
     0     0    0.73387    0  117   22.00000    0.73387  96.7%     -    0s
H    0     0                      20.0000000    0.73387  96.3%     -    0s
     0     0    0.73387    0  119   20.00000    0.73387  96.3%     -    0s
     0     0    0.73387    0  113   20.00000    0.73387  96.3%     -    0s
H    0     0                      19.0000000    0.73387  96.1%     -    0s
H    0     0                      12.0000000    0.73387  93.9%     -    0s
     0     2    0.75621    0  113   12.00000    0.75621  93.7%     -    0s
*   20    20              18       4.0000000    1.00000  75.0%  40.5    0s
H   27    17                       3.0000000    1.00000  66.7%  31.6    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 63 nodes (3424 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%