Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:49 2013 Optimize a model with 649 rows, 34869 columns and 69679 nonzeros Presolve time: 0.05s Presolved: 649 rows, 34869 columns, 69679 nonzeros Variable types: 34810 continuous, 59 integer (59 binary) Root relaxation: objective 5.832352e+04, 1296 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 58323.5216 0 7 - 58323.5216 - - 0s H 0 0 60347.000000 58323.5216 3.35% - 0s H 0 0 58742.000000 58323.5216 0.71% - 0s 0 0 58553.6286 0 5 58742.0000 58553.6286 0.32% - 0s 0 0 58577.5485 0 3 58742.0000 58577.5485 0.28% - 0s 0 0 58577.7287 0 4 58742.0000 58577.7287 0.28% - 0s 0 0 58577.7287 0 7 58742.0000 58577.7287 0.28% - 0s 0 0 58577.7287 0 5 58742.0000 58577.7287 0.28% - 0s 0 0 58577.7287 0 3 58742.0000 58577.7287 0.28% - 0s 0 0 58577.7287 0 4 58742.0000 58577.7287 0.28% - 0s 0 0 58578.0695 0 3 58742.0000 58578.0695 0.28% - 0s 0 0 58578.0695 0 3 58742.0000 58578.0695 0.28% - 0s 0 0 58580.1193 0 2 58742.0000 58580.1193 0.28% - 0s 0 2 58581.1429 0 2 58742.0000 58581.1429 0.27% - 0s * 5 2 4 58682.000000 58682.0000 0.0% 31.0 0s Cutting planes: Implied bound: 49 Explored 6 nodes (2714 simplex iterations) in 0.88 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%