Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:03:53 2012 Optimize a model with 1762 rows, 1681 columns and 10007 nonzeros Presolve removed 986 rows and 1212 columns Presolve time: 0.04s Presolved: 776 rows, 469 columns, 8517 nonzeros Variable types: 34 continuous, 435 integer (435 binary) Root relaxation: objective 3.942162e+02, 142 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 394.21619 0 34 - 394.21619 - - 0s 0 0 399.47964 0 34 - 399.47964 - - 0s 0 0 400.94281 0 40 - 400.94281 - - 0s 0 0 401.15504 0 41 - 401.15504 - - 0s 0 0 401.16387 0 40 - 401.16387 - - 0s 0 0 401.19037 0 40 - 401.19037 - - 0s 0 0 401.34808 0 22 - 401.34808 - - 0s H 0 0 411.0000000 401.34808 2.35% - 0s H 0 0 404.0000000 401.34808 0.66% - 0s 0 0 cutoff 0 404.00000 403.00041 0.25% - 0s Explored 0 nodes (252 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.040000000000e+02, best bound 4.040000000000e+02, gap 0.0%