Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:07:42 2013 Optimize a model with 2000 rows, 101100 columns and 203800 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.29s Presolved: 1900 rows, 101000 columns, 203200 nonzeros Variable types: 100700 continuous, 300 integer (300 binary) Root relaxation: objective 9.481640e+05, 5858 iterations, 0.49 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 8 - 948163.962 - - 0s H 0 0 1045693.0343 948163.962 9.33% - 1s H 0 0 960008.20110 948163.962 1.23% - 1s 0 0 948316.355 0 8 960008.201 948316.355 1.22% - 1s 0 0 948355.802 0 8 960008.201 948355.802 1.21% - 2s 0 0 948369.314 0 8 960008.201 948369.314 1.21% - 2s 0 0 948369.642 0 8 960008.201 948369.642 1.21% - 2s 0 0 948377.606 0 8 960008.201 948377.606 1.21% - 3s 0 0 948377.606 0 8 960008.201 948377.606 1.21% - 3s 0 0 948379.805 0 8 960008.201 948379.805 1.21% - 3s 0 0 948380.584 0 8 960008.201 948380.584 1.21% - 3s 0 0 948380.587 0 8 960008.201 948380.587 1.21% - 4s 0 0 948381.109 0 8 960008.201 948381.109 1.21% - 4s 0 0 948381.109 0 8 960008.201 948381.109 1.21% - 5s 0 2 948381.109 0 8 960008.201 948381.109 1.21% - 6s 17 18 949785.213 16 2 960008.201 948465.961 1.20% 120 10s * 25 10 24 950276.23626 948465.961 0.19% 93.1 11s 46 5 cutoff 4 950276.236 949334.314 0.10% 144 15s H 56 1 950067.53247 949787.291 0.03% 137 16s Cutting planes: Flow cover: 19 Explored 92 nodes (15469 simplex iterations) in 17.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.500675324736e+05, best bound 9.500675324736e+05, gap 0.0%