Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:35:36 2013 Optimize a model with 700 rows, 35150 columns and 80200 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.05s Presolved: 650 rows, 35100 columns, 70150 nonzeros Variable types: 35100 continuous, 0 integer (0 binary) Root relaxation: objective 1.749223e+05, 1785 iterations, 0.09 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% 48.3 0s * 314 40 81 176609.39826 175625.265 0.56% 6.7 2s * 323 33 86 176591.90826 175625.265 0.55% 6.5 2s * 399 9 27 176230.62994 176124.301 0.06% 7.0 3s * 425 22 40 176219.02601 176208.108 0.01% 6.7 3s Explored 426 nodes (4618 simplex iterations) in 3.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.762190260110e+05, best bound 1.762081075843e+05, gap 0.0062%