Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:19:25 2012 Optimize a model with 34027 rows, 35532 columns and 136674 nonzeros Presolve removed 589 rows and 4326 columns Presolve time: 0.87s Presolved: 33438 rows, 31206 columns, 130678 nonzeros Variable types: 0 continuous, 31206 integer (31206 binary) Found heuristic solution: objective 188.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27099 3.0000711e+00 1.748100e+01 0.000000e+00 5s 29351 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 29351 iterations, 6.52 seconds Total elapsed time = 19.44s Total elapsed time = 20.15s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 24 188.00000 3.00000 98.4% - 20s H 0 0 3.0000000 3.00000 0.0% - 20s Explored 0 nodes (62299 simplex iterations) in 20.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%