Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:32:25 2013 Optimize a model with 138509 rows, 8836 columns and 419710 nonzeros Presolve removed 7055 rows and 4446 columns Presolve time: 1.49s Presolved: 131454 rows, 4390 columns, 398727 nonzeros Variable types: 48 continuous, 4342 integer (4342 binary) Found heuristic solution: objective 180939.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 23336 1.1517323e+05 0.000000e+00 1.615289e+08 5s 49756 1.2531995e+05 0.000000e+00 3.018604e+07 10s 63545 1.3257363e+05 0.000000e+00 0.000000e+00 12s 63545 1.3257362e+05 0.000000e+00 0.000000e+00 12s Root relaxation: objective 1.325736e+05, 63545 iterations, 12.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 132573.625 0 17 180939.000 132573.625 26.7% - 14s H 0 0 132589.00000 132573.625 0.01% - 14s H 0 0 132585.00000 132573.625 0.01% - 14s Explored 0 nodes (63693 simplex iterations) in 14.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.325850000000e+05, best bound 1.325740000000e+05, gap 0.0083%