Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:49 2013 Optimize a model with 286 rows, 6786 columns and 13546 nonzeros Presolve time: 0.01s Presolved: 286 rows, 6786 columns, 13546 nonzeros Variable types: 6760 continuous, 26 integer (26 binary) Root relaxation: objective 2.530872e+04, 306 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25308.7163 0 4 - 25308.7163 - - 0s H 0 0 25398.000000 25308.7163 0.35% - 0s 0 0 25395.1429 0 1 25398.0000 25395.1429 0.01% - 0s 0 0 25396.6946 0 1 25398.0000 25396.6946 0.01% - 0s Cutting planes: Implied bound: 8 Flow cover: 1 Explored 0 nodes (332 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.539800000000e+04, best bound 2.539669461078e+04, gap 0.0051%