Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:09:53 2013 Optimize a model with 24598 rows, 24108 columns and 96138 nonzeros Presolve removed 49 rows and 0 columns Presolve time: 0.10s Presolved: 24549 rows, 24108 columns, 96089 nonzeros Variable types: 24059 continuous, 49 integer (49 binary) Root relaxation: objective 4.049666e+04, 2664 iterations, 0.66 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40496.6569 0 38 - 40496.6569 - - 0s H 0 0 54536.000000 40496.6569 25.7% - 1s 0 0 46898.5908 0 13 54536.0000 46898.5908 14.0% - 2s H 0 0 53118.569861 46898.5908 11.7% - 2s H 0 0 51412.000000 46898.5908 8.78% - 2s 0 0 47685.5396 0 8 51412.0000 47685.5396 7.25% - 3s H 0 0 50417.796017 47685.5396 5.42% - 3s H 0 0 49582.000000 47685.5396 3.82% - 3s H 0 0 48025.000000 47685.5396 0.71% - 3s 0 2 47692.0723 0 8 48025.0000 47692.0723 0.69% - 3s Cutting planes: Implied bound: 46 Explored 47 nodes (8130 simplex iterations) in 4.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.802500000000e+04, best bound 4.802500000000e+04, gap 0.0%