Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:12:03 2013 Optimize a model with 1400 rows, 100800 columns and 201900 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.15s Presolved: 1300 rows, 100700 columns, 201300 nonzeros Variable types: 100700 continuous, 0 integer (0 binary) Root relaxation: objective 8.654105e+05, 7689 iterations, 0.63 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 865410.545 0 2 - 865410.545 - - 0s H 0 0 898678.98797 865410.545 3.70% - 1s 0 2 865410.545 0 2 898678.988 865410.545 3.70% - 1s 21 23 884174.103 11 2 898678.988 866564.739 3.57% 211 5s * 37 15 19 867914.97146 866564.739 0.16% 197 7s * 179 9 55 866930.82542 866599.521 0.04% 52.4 9s 180 8 cutoff 2 866930.825 866770.650 0.02% 52.9 10s * 226 4 33 866870.27622 866841.036 0.00% 42.4 10s Explored 227 nodes (17261 simplex iterations) in 10.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.668702762242e+05, best bound 8.668410359654e+05, gap 0.0034%