Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:14:41 2013 Optimize a model with 91963 rows, 6724 columns and 279046 nonzeros Presolve removed 5024 rows and 3383 columns Presolve time: 0.83s Presolved: 86939 rows, 3341 columns, 264056 nonzeros Variable types: 41 continuous, 3300 integer (3300 binary) Found heuristic solution: objective 135949.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 38282 9.9599134e+04 0.000000e+00 9.381347e+03 5s 38355 9.9610667e+04 0.000000e+00 0.000000e+00 5s 38355 9.9610667e+04 0.000000e+00 0.000000e+00 5s Root relaxation: objective 9.961067e+04, 38355 iterations, 5.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99610.6667 0 13 135949.000 99610.6667 26.7% - 6s H 0 0 99623.000000 99610.6667 0.01% - 6s 0 0 99611.5894 0 27 99623.0000 99611.5894 0.01% - 6s 0 0 99611.5894 0 15 99623.0000 99611.5894 0.01% - 7s H 0 0 99621.000000 99611.5894 0.01% - 7s Explored 0 nodes (41889 simplex iterations) in 7.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.962100000000e+04, best bound 9.961200000000e+04, gap 0.0090%