Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:56 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 3.573401e+04, 442 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 35763.6534 0 6 - 35763.6534 - - 0s 0 0 35777.7655 0 6 - 35777.7655 - - 0s 0 0 35781.1088 0 6 - 35781.1088 - - 0s 0 0 35788.2270 0 6 - 35788.2270 - - 0s 0 0 35794.1249 0 6 - 35794.1249 - - 0s 0 0 35795.0249 0 6 - 35795.0249 - - 0s 0 0 35795.7001 0 6 - 35795.7001 - - 0s 0 0 35795.7462 0 6 - 35795.7462 - - 0s 0 0 35796.1149 0 6 - 35796.1149 - - 0s 0 0 35796.1149 0 6 - 35796.1149 - - 0s H 0 0 36169.916351 35796.1149 1.03% - 0s 0 1 35858.1356 0 4 36169.9164 35858.1356 0.86% - 0s Cutting planes: Flow cover: 17 Explored 8 nodes (996 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.616991635074e+04, best bound 3.616991635074e+04, gap 0.0%