Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:00:51 2013 Optimize a model with 18144 rows, 17724 columns and 70644 nonzeros Presolve removed 42 rows and 0 columns Presolve time: 0.08s Presolved: 18102 rows, 17724 columns, 70602 nonzeros Variable types: 17682 continuous, 42 integer (42 binary) Root relaxation: objective 3.543546e+04, 2483 iterations, 0.65 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35435.4573 0 33 - 35435.4573 - - 0s H 0 0 44060.000000 35435.4573 19.6% - 1s 0 0 40455.0098 0 7 44060.0000 40455.0098 8.18% - 1s H 0 0 43551.120878 40455.0098 7.11% - 1s H 0 0 42485.000000 40455.0098 4.78% - 1s 0 0 40880.4215 0 4 42485.0000 40880.4215 3.78% - 1s H 0 0 42467.524900 40880.4215 3.74% - 1s H 0 0 41770.000000 40880.4215 2.13% - 1s H 0 0 40959.000000 40880.4215 0.19% - 1s 0 0 40884.7195 0 3 40959.0000 40884.7195 0.18% - 1s 0 0 cutoff 0 40959.0000 40959.0000 0.0% - 2s Cutting planes: Implied bound: 34 Explored 0 nodes (3996 simplex iterations) in 2.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.095900000000e+04, best bound 4.095900000000e+04, gap 0.0%