Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:15:23 2013 Optimize a model with 700 rows, 30150 columns and 65200 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.06s Presolved: 650 rows, 30100 columns, 60150 nonzeros Variable types: 30100 continuous, 0 integer (0 binary) Root relaxation: objective 1.749223e+05, 1870 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 174922.321 0 2 - 174922.321 - - 0s 0 2 174922.321 0 2 - 174922.321 - - 0s * 23 11 12 176767.92131 175399.797 0.77% 50.8 0s * 153 13 77 176552.51440 175399.797 0.65% 9.4 1s * 341 19 96 176529.43909 175625.265 0.51% 6.6 2s * 400 6 26 176230.60939 176124.301 0.06% 7.0 3s * 406 2 20 176210.41881 176208.108 0.00% 7.0 3s Explored 407 nodes (4693 simplex iterations) in 3.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.762104188093e+05, best bound 1.762081075843e+05, gap 0.0013%