Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:31 2013 Optimize a model with 320 rows, 4120 columns and 8280 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.01s Presolved: 300 rows, 4100 columns, 8220 nonzeros Variable types: 4080 continuous, 20 integer (20 binary) Root relaxation: objective 3.573401e+04, 375 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 3 - 35734.0139 - - 0s 0 0 35765.3257 0 3 - 35765.3257 - - 0s 0 0 35790.0193 0 3 - 35790.0193 - - 0s 0 0 35801.8782 0 4 - 35801.8782 - - 0s 0 0 35806.7717 0 4 - 35806.7717 - - 0s 0 0 35807.6481 0 4 - 35807.6481 - - 0s 0 0 35807.9550 0 4 - 35807.9550 - - 0s 0 0 35810.7483 0 4 - 35810.7483 - - 0s 0 0 35810.8236 0 4 - 35810.8236 - - 0s 0 0 35813.3383 0 4 - 35813.3383 - - 0s 0 0 35814.2743 0 4 - 35814.2743 - - 0s 0 0 35814.3905 0 4 - 35814.3905 - - 0s 0 0 35814.8633 0 4 - 35814.8633 - - 0s 0 0 35815.9756 0 4 - 35815.9756 - - 0s 0 0 35816.6555 0 4 - 35816.6555 - - 0s 0 0 35817.5068 0 4 - 35817.5068 - - 0s 0 0 35818.2013 0 4 - 35818.2013 - - 0s 0 0 35820.0192 0 4 - 35820.0192 - - 0s 0 0 35820.0372 0 4 - 35820.0372 - - 0s 0 0 35820.0652 0 4 - 35820.0652 - - 0s 0 0 35820.0909 0 4 - 35820.0909 - - 0s 0 0 35820.0909 0 4 - 35820.0909 - - 0s H 0 0 36131.385172 35820.0909 0.86% - 0s 0 1 35866.0183 0 2 36131.3852 35866.0183 0.73% - 0s Cutting planes: Flow cover: 25 Explored 6 nodes (957 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.613138517161e+04, best bound 3.613138517161e+04, gap 0.0%