Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:44:47 2013 Optimize a model with 166750 rows, 10000 columns and 505000 nonzeros Presolve removed 8834 rows and 5043 columns Presolve time: 2.08s Presolved: 157916 rows, 4957 columns, 478307 nonzeros Variable types: 47 continuous, 4910 integer (4910 binary) Found heuristic solution: objective 218557.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 34338 1.4828033e+05 0.000000e+00 6.209574e+06 5s 45201 1.5347600e+05 0.000000e+00 0.000000e+00 7s 45201 1.5347600e+05 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.534760e+05, 45201 iterations, 7.08 seconds Total elapsed time = 10.19s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 153476.000 0 15 218557.000 153476.000 29.8% - 10s H 0 0 153488.00000 153476.000 0.01% - 10s Explored 0 nodes (45716 simplex iterations) in 10.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.534880000000e+05, best bound 1.534760000000e+05, gap 0.0078%