Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:10 2012 Optimize a model with 902 rows, 840 columns and 3680 nonzeros Presolve removed 101 rows and 42 columns Presolve time: 0.02s Presolved: 801 rows, 798 columns, 3470 nonzeros Variable types: 379 continuous, 419 integer (419 binary) Root relaxation: objective 2.880227e+02, 856 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 288.02268 0 35 - 288.02268 - - 0s 0 0 354.81227 0 28 - 354.81227 - - 0s 0 0 365.75171 0 20 - 365.75171 - - 0s 0 0 367.00567 0 20 - 367.00567 - - 0s 0 0 367.48269 0 19 - 367.48269 - - 0s 0 0 370.82378 0 23 - 370.82378 - - 0s 0 0 371.03181 0 25 - 371.03181 - - 0s 0 0 371.18295 0 19 - 371.18295 - - 0s 0 0 371.57221 0 26 - 371.57221 - - 0s 0 0 371.57791 0 25 - 371.57791 - - 0s 0 0 371.57791 0 23 - 371.57791 - - 0s H 0 0 398.0000000 371.57791 6.64% - 0s H 0 0 396.0000000 371.57791 6.17% - 0s 0 0 371.57791 0 11 396.00000 371.57791 6.17% - 0s 0 0 392.45461 0 8 396.00000 392.45461 0.90% - 0s 0 0 394.63240 0 6 396.00000 394.63240 0.35% - 0s 0 0 cutoff 0 396.00000 396.00000 0.0% - 0s Cutting planes: Gomory: 3 Implied bound: 1 Clique: 1 Flow cover: 1 GUB cover: 1 Explored 1 nodes (1703 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.960000000000e+02, best bound 3.960000000000e+02, gap 0.0%