Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:47:46 2013 Optimize a model with 700 rows, 25400 columns and 50950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.04s Presolved: 650 rows, 25350 columns, 50650 nonzeros Variable types: 25350 continuous, 0 integer (0 binary) Root relaxation: objective 2.198499e+05, 2423 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 219849.939 0 2 - 219849.939 - - 0s H 0 0 223028.23737 219849.939 1.43% - 0s 0 2 219849.939 0 2 223028.237 219849.939 1.43% - 0s * 33 15 17 222005.79570 220950.526 0.48% 61.0 0s * 52 8 26 221800.08212 220950.526 0.38% 42.3 0s Explored 75 nodes (5868 simplex iterations) in 1.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.218000821189e+05, best bound 2.217916041388e+05, gap 0.0038%