Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:26 2013 Optimize a model with 140 rows, 1230 columns and 2640 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1220 columns, 2430 nonzeros Variable types: 1220 continuous, 0 integer (0 binary) Root relaxation: objective 2.337984e+04, 118 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23379.8401 0 1 - 23379.8401 - - 0s H 0 0 23736.244530 23379.8401 1.50% - 0s 0 2 23379.8401 0 1 23736.2445 23379.8401 1.50% - 0s * 15 3 8 23527.197639 23527.0593 0.00% 4.5 0s Explored 16 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 2.352719763919e+04, best bound 2.352705928118e+04, gap 0.0006%