Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:39:27 2013 Optimize a model with 320 rows, 11350 columns and 122190 nonzeros Presolve removed 10 rows and 250 columns Presolve time: 0.24s Presolved: 310 rows, 11100 columns, 112190 nonzeros Variable types: 11010 continuous, 90 integer (90 binary) Root relaxation: objective 2.207062e+04, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22070.6191 0 7 - 22070.6191 - - 0s H 0 0 22333.165576 22070.6191 1.18% - 0s 0 0 22070.6801 0 7 22333.1656 22070.6801 1.18% - 0s 0 0 22070.7335 0 7 22333.1656 22070.7335 1.18% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22070.7927 0 7 22333.1656 22070.7927 1.17% - 0s 0 0 22237.3867 0 7 22333.1656 22237.3867 0.43% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22322.9942 0 6 22333.1656 22322.9942 0.05% - 1s 0 0 22331.5134 0 6 22333.1656 22331.5134 0.01% - 1s Cutting planes: Flow cover: 3 Explored 0 nodes (2019 simplex iterations) in 1.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.233316557625e+04, best bound 2.233151336986e+04, gap 0.0074%