Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:29:42 2012

Optimize a model with 12555 rows, 18360 columns and 55485 nonzeros
Presolve removed 31 rows and 4185 columns
Presolve time: 0.23s
Presolved: 12524 rows, 14175 columns, 51300 nonzeros
Variable types: 0 continuous, 14175 integer (14175 binary)
Found heuristic solution: objective 45.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 12939 iterations, 1.03 seconds

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

     0     0    2.00000    0  100    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  247    3.00000    2.00000  33.3%     -    8s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   16s
     0     0    2.00000    0  208    3.00000    2.00000  33.3%     -   24s
     0     0    2.00000    0  206    3.00000    2.00000  33.3%     -   35s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   42s
     0     0    2.00000    0  100    3.00000    2.00000  33.3%     -   51s
     0     0    2.00000    0  208    3.00000    2.00000  33.3%     -   63s
     0     0    2.00000    0  204    3.00000    2.00000  33.3%     -   73s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   83s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   86s
     0     2    2.00000    0  261    3.00000    2.00000  33.3%     -   94s
     2     3    2.00000    1  261    3.00000    2.00000  33.3% 13306   98s
     4     4    2.00000    1  100    3.00000    2.00000  33.3%  6653  102s
     5     5    2.00000    1  208    3.00000    2.00000  33.3%  5322  113s

Cutting planes:
  Gomory: 1
  Zero half: 1

Explored 5 nodes (431626 simplex iterations) in 114.26 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%