Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:03 2013 Optimize a model with 280 rows, 5060 columns and 11080 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.01s Presolved: 260 rows, 5040 columns, 10060 nonzeros Variable types: 5040 continuous, 0 integer (0 binary) Root relaxation: objective 3.573401e+04, 384 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35734.0139 0 3 - 35734.0139 - - 0s H 0 0 36294.740271 35734.0139 1.54% - 0s 0 2 35734.0139 0 3 36294.7403 35734.0139 1.54% - 0s * 21 3 10 36275.439231 36014.0237 0.72% 10.8 0s * 46 8 14 36178.473074 36014.0237 0.45% 7.7 0s * 52 4 12 36173.439775 36172.4450 0.00% 7.7 0s Explored 53 nodes (783 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.617343977492e+04, best bound 3.617244496552e+04, gap 0.0028%