Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:47 2013 Optimize a model with 14896 rows, 14516 columns and 57836 nonzeros Presolve removed 38 rows and 0 columns Presolve time: 0.06s Presolved: 14858 rows, 14516 columns, 57798 nonzeros Variable types: 14478 continuous, 38 integer (38 binary) Root relaxation: objective 3.576634e+04, 2416 iterations, 0.46 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35766.3410 0 33 - 35766.3410 - - 0s H 0 0 45573.000000 35766.3410 21.5% - 0s 0 0 40763.1334 0 3 45573.0000 40763.1334 10.6% - 1s H 0 0 41571.517001 40763.1334 1.94% - 1s H 0 0 41371.000000 40763.1334 1.47% - 1s H 0 0 40843.000000 40763.1334 0.20% - 1s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 1s 0 0 40841.9333 0 1 40843.0000 40841.9333 0.00% - 1s Cutting planes: Implied bound: 32 Explored 0 nodes (3646 simplex iterations) in 1.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.084300000000e+04, best bound 4.084193333333e+04, gap 0.0026%