Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:26 2013 Optimize a model with 165 rows, 2265 columns and 4515 nonzeros Presolve time: 0.00s Presolved: 165 rows, 2265 columns, 4515 nonzeros Variable types: 2250 continuous, 15 integer (15 binary) Root relaxation: objective 1.891363e+04, 171 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18913.6276 0 2 - 18913.6276 - - 0s H 0 0 18999.000000 18913.6276 0.45% - 0s 0 0 18993.2880 0 1 18999.0000 18993.2880 0.03% - 0s 0 0 18996.8182 0 1 18999.0000 18996.8182 0.01% - 0s Cutting planes: Implied bound: 13 Flow cover: 1 Explored 0 nodes (186 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.899900000000e+04, best bound 1.899900000000e+04, gap 0.0%