Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:03:58 2013 Optimize a model with 2100 rows, 101300 columns and 204000 nonzeros Presolve removed 200 rows and 200 columns Presolve time: 0.85s Presolved: 1900 rows, 101100 columns, 203300 nonzeros Variable types: 100700 continuous, 400 integer (400 binary) Root relaxation: objective 7.672886e+05, 7448 iterations, 1.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 767288.564 0 3 - 767288.564 - - 2s H 0 0 926712.22000 767288.564 17.2% - 2s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 3s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 3s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 4s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 4s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 5s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 5s 0 0 767325.680 0 2 926712.220 767325.680 17.2% - 6s 0 2 767332.601 0 2 926712.220 767332.601 17.2% - 7s 14 16 768251.825 13 1 926712.220 767667.184 17.2% 84.0 10s * 17 5 16 768324.01239 767667.184 0.09% 72.2 10s Cutting planes: Flow cover: 6 Explored 36 nodes (10632 simplex iterations) in 12.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.683240123860e+05, best bound 7.683240123860e+05, gap 0.0%