Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:06 2013 Optimize a model with 35459 rows, 34869 columns and 139299 nonzeros Presolve removed 2678 rows and 0 columns Presolve time: 0.21s Presolved: 32781 rows, 34869 columns, 133943 nonzeros Variable types: 34810 continuous, 59 integer (59 binary) Root relaxation: objective 5.857807e+04, 5510 iterations, 0.62 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 58578.0695 0 3 - 58578.0695 - - 0s H 0 0 59191.000000 58578.0695 1.04% - 1s H 0 0 58742.000000 58578.0695 0.28% - 1s 0 0 58578.3931 0 4 58742.0000 58578.3931 0.28% - 1s 0 0 58578.3931 0 4 58742.0000 58578.3931 0.28% - 1s 0 0 58580.3967 0 3 58742.0000 58580.3967 0.28% - 1s 0 0 58580.3967 0 2 58742.0000 58580.3967 0.28% - 2s 0 0 58580.4230 0 3 58742.0000 58580.4230 0.28% - 2s 0 2 58581.6745 0 3 58742.0000 58581.6745 0.27% - 3s * 3 2 3 58682.000000 58637.7348 0.08% 94.3 3s Cutting planes: Gomory: 1 Explored 5 nodes (8242 simplex iterations) in 3.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.868200000000e+04, best bound 5.868200000000e+04, gap 0.0%