Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:08:48 2013 Optimize a model with 76153 rows, 5929 columns and 231231 nonzeros Presolve removed 5678 rows and 3005 columns Presolve time: 0.66s Presolved: 70475 rows, 2924 columns, 214013 nonzeros Variable types: 35 continuous, 2889 integer (2889 binary) Found heuristic solution: objective 147616.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 37006 1.1569564e+05 0.000000e+00 2.351950e+06 5s 39390 1.1743899e+05 0.000000e+00 0.000000e+00 5s 39390 1.1743899e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.174390e+05, 39390 iterations, 5.35 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 117438.995 0 10 147616.000 117438.995 20.4% - 6s H 0 0 117479.00000 117438.995 0.03% - 6s H 0 0 117454.00000 117438.995 0.01% - 6s 0 0 117441.494 0 27 117454.000 117441.494 0.01% - 6s 0 0 117441.494 0 9 117454.000 117441.494 0.01% - 7s H 0 0 117448.00000 117441.494 0.01% - 7s Explored 0 nodes (40949 simplex iterations) in 7.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.174480000000e+05, best bound 1.174420000000e+05, gap 0.0051%