Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:21:13 2013 Optimize a model with 700 rows, 75150 columns and 200200 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.15s Presolved: 650 rows, 75100 columns, 150150 nonzeros Variable types: 75100 continuous, 0 integer (0 binary) Root relaxation: objective 2.198499e+05, 2629 iterations, 0.18 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 0 2 219849.939 0 2 - 219849.939 - - 1s * 77 25 39 222622.35999 220950.526 0.75% 31.7 2s * 111 19 19 221990.67135 221014.973 0.44% 30.1 3s * 159 5 22 221988.58882 221923.775 0.03% 27.5 4s Explored 169 nodes (7057 simplex iterations) in 4.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.219885888237e+05, best bound 2.219802889396e+05, gap 0.0037%