Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:01:15 2013 Optimize a model with 1200 rows, 26400 columns and 57950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.16s Presolved: 1150 rows, 26350 columns, 56900 nonzeros Variable types: 26100 continuous, 250 integer (250 binary) Root relaxation: objective 2.246016e+05, 1927 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 224601.597 0 3 - 224601.597 - - 0s H 0 0 235112.04333 224601.597 4.47% - 0s H 0 0 225403.52872 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 0 224601.597 0 3 225403.529 224601.597 0.36% - 0s 0 2 224601.597 0 3 225403.529 224601.597 0.36% - 0s * 4 1 4 224847.24808 224785.855 0.03% 94.2 1s Cutting planes: Flow cover: 3 Explored 7 nodes (3527 simplex iterations) in 1.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%