Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:52 2013 Optimize a model with 363 rows, 10923 columns and 21813 nonzeros Presolve time: 0.02s Presolved: 363 rows, 10923 columns, 21813 nonzeros Variable types: 10890 continuous, 33 integer (33 binary) Root relaxation: objective 3.993461e+04, 667 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39934.6120 0 2 - 39934.6120 - - 0s H 0 0 40578.000000 39934.6120 1.59% - 0s 0 0 40143.5385 0 1 40578.0000 40143.5385 1.07% - 0s H 0 0 40196.000000 40143.5385 0.13% - 0s 0 0 40165.9780 0 1 40196.0000 40165.9780 0.07% - 0s 0 0 40173.4286 0 1 40196.0000 40173.4286 0.06% - 0s 0 0 40173.4286 0 1 40196.0000 40173.4286 0.06% - 0s 0 0 40175.8462 0 1 40196.0000 40175.8462 0.05% - 0s 0 0 40177.2308 0 1 40196.0000 40177.2308 0.05% - 0s 0 0 40177.2308 0 1 40196.0000 40177.2308 0.05% - 0s 0 0 40193.4000 0 1 40196.0000 40193.4000 0.01% - 0s Cutting planes: Implied bound: 23 Flow cover: 1 Explored 0 nodes (780 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.019600000000e+04, best bound 4.019340000000e+04, gap 0.0065%