Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:37 2013 Optimize a model with 2160 rows, 5030 columns and 16050 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.13s Presolved: 2150 rows, 5020 columns, 14040 nonzeros Variable types: 3020 continuous, 2000 integer (2000 binary) Root relaxation: objective 2.199252e+04, 129 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 4 - 21992.5209 - - 0s 0 0 22013.3084 0 2 - 22013.3084 - - 0s 0 0 22020.6828 0 2 - 22020.6828 - - 0s 0 0 22024.7752 0 5 - 22024.7752 - - 0s 0 0 22026.0803 0 2 - 22026.0803 - - 0s 0 0 22026.1081 0 3 - 22026.1081 - - 0s 0 0 22029.9695 0 5 - 22029.9695 - - 0s 0 0 22030.5100 0 5 - 22030.5100 - - 0s 0 0 22030.8938 0 2 - 22030.8938 - - 0s 0 0 22031.0967 0 8 - 22031.0967 - - 0s 0 0 22032.4657 0 4 - 22032.4657 - - 0s 0 0 22032.6064 0 6 - 22032.6064 - - 0s 0 0 22032.6071 0 2 - 22032.6071 - - 0s 0 0 22033.0591 0 6 - 22033.0591 - - 0s 0 0 22033.3022 0 2 - 22033.3022 - - 0s 0 0 22033.3112 0 8 - 22033.3112 - - 0s 0 0 22034.0602 0 5 - 22034.0602 - - 0s 0 0 22034.1433 0 11 - 22034.1433 - - 0s 0 0 22036.6188 0 3 - 22036.6188 - - 0s 0 0 22036.6232 0 9 - 22036.6232 - - 0s 0 0 22036.7011 0 9 - 22036.7011 - - 0s 0 0 22036.7266 0 9 - 22036.7266 - - 0s 0 0 22036.7266 0 9 - 22036.7266 - - 0s 0 2 22036.7266 0 9 - 22036.7266 - - 1s * 3 1 2 22791.927631 22077.8814 3.13% 57.0 1s * 15 5 8 22134.957138 22134.9504 0.00% 19.1 1s Cutting planes: Gomory: 1 Implied bound: 29 Flow cover: 5 Explored 16 nodes (733 simplex iterations) in 1.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213495713844e+04, best bound 2.213495037364e+04, gap 0.0000%