Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:57 2013 Optimize a model with 400 rows, 4220 columns and 8760 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.01s Presolved: 380 rows, 4200 columns, 8640 nonzeros Variable types: 4140 continuous, 60 integer (60 binary) Root relaxation: objective 3.600389e+04, 425 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 4 - 36003.8892 - - 0s 0 0 36066.4119 0 4 - 36066.4119 - - 0s 0 0 36074.1344 0 4 - 36074.1344 - - 0s 0 0 36075.3734 0 5 - 36075.3734 - - 0s 0 0 36078.5019 0 5 - 36078.5019 - - 0s 0 0 36080.0528 0 5 - 36080.0528 - - 0s 0 0 36084.6295 0 5 - 36084.6295 - - 0s 0 0 36091.8701 0 5 - 36091.8701 - - 0s 0 0 36098.1573 0 5 - 36098.1573 - - 0s 0 0 36101.4192 0 4 - 36101.4192 - - 0s 0 0 36105.4575 0 4 - 36105.4575 - - 0s 0 0 36105.5201 0 4 - 36105.5201 - - 0s 0 0 36108.0888 0 5 - 36108.0888 - - 0s 0 0 36109.0070 0 5 - 36109.0070 - - 0s 0 0 36109.0070 0 5 - 36109.0070 - - 0s H 0 0 36199.703258 36109.0070 0.25% - 0s 0 0 cutoff 0 36199.7033 36199.7033 0.0% - 0s Cutting planes: Flow cover: 12 Explored 1 nodes (717 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.619970325776e+04, best bound 3.619970325776e+04, gap 0.0%