Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:30:34 2012 Optimize a model with 11910 rows, 11880 columns and 45299 nonzeros Presolve removed 615 rows and 108 columns Presolve time: 0.07s Presolved: 11295 rows, 11772 columns, 43999 nonzeros Variable types: 11069 continuous, 703 integer (703 binary) Root relaxation: objective 2.214013e+05, 1020 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 221401.279 0 4 - 221401.279 - - 0s H 0 0 221848.00000 221401.279 0.20% - 0s H 0 0 221669.00000 221401.279 0.12% - 0s 0 0 221415.891 0 8 221669.000 221415.891 0.11% - 0s 0 0 221415.891 0 4 221669.000 221415.891 0.11% - 0s 0 0 221415.891 0 8 221669.000 221415.891 0.11% - 0s H 0 0 221451.00000 221415.891 0.02% - 0s 0 0 221436.900 0 4 221451.000 221436.900 0.01% - 0s Cutting planes: Gomory: 2 Flow cover: 2 Explored 0 nodes (1795 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214510000000e+05, best bound 2.214369003021e+05, gap 0.0064%