Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:16:02 2013 Optimize a model with 440 rows, 4760 columns and 10980 nonzeros Presolve removed 20 rows and 260 columns Presolve time: 0.01s Presolved: 420 rows, 4500 columns, 10580 nonzeros Variable types: 4420 continuous, 80 integer (80 binary) Root relaxation: objective 4.636776e+04, 588 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46367.7551 0 4 - 46367.7551 - - 0s 0 0 46391.8244 0 4 - 46391.8244 - - 0s 0 0 46393.3265 0 4 - 46393.3265 - - 0s 0 0 46393.8994 0 4 - 46393.8994 - - 0s 0 0 46394.3043 0 4 - 46394.3043 - - 0s 0 0 46394.3043 0 4 - 46394.3043 - - 0s H 0 0 46832.519780 46394.3043 0.94% - 0s 0 2 46394.3043 0 4 46832.5198 46394.3043 0.94% - 0s * 7 2 5 46652.929898 46457.7783 0.42% 22.0 0s Cutting planes: Flow cover: 4 Explored 10 nodes (934 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.665292989755e+04, best bound 4.665292989755e+04, gap 0.0%