Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:20 2013 Optimize a model with 2320 rows, 8060 columns and 22100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.16s Presolved: 2300 rows, 8040 columns, 20080 nonzeros Variable types: 6040 continuous, 2000 integer (2000 binary) Root relaxation: objective 3.573401e+04, 486 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35734.0139 0 6 - 35734.0139 - - 0s 0 0 35849.3143 0 8 - 35849.3143 - - 0s 0 0 35866.5313 0 6 - 35866.5313 - - 0s 0 0 35866.5313 0 6 - 35866.5313 - - 0s 0 0 35866.5313 0 6 - 35866.5313 - - 0s 0 0 35866.5313 0 6 - 35866.5313 - - 0s 0 2 35866.5313 0 6 - 35866.5313 - - 0s * 24 8 12 36173.469392 36100.9788 0.20% 37.1 0s Cutting planes: Gomory: 5 Implied bound: 80 Flow cover: 4 Explored 28 nodes (1795 simplex iterations) in 0.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.617346939151e+04, best bound 3.617346939151e+04, gap 0.0%