Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:29:21 2012 Optimize a model with 35339 rows, 36290 columns and 141358 nonzeros Presolve removed 382 rows and 2 columns Presolve time: 0.81s Presolved: 35147 rows, 36288 columns, 176140 nonzeros Variable types: 0 continuous, 36288 integer (36288 binary) Found heuristic solution: objective 190.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 28809 3.0000735e+00 2.479439e+00 0.000000e+00 5s 29390 3.0000000e+00 0.000000e+00 0.000000e+00 5s Root relaxation: objective 3.000000e+00, 29390 iterations, 5.40 seconds Total elapsed time = 17.27s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 19s Explored 0 nodes (67149 simplex iterations) in 19.30 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%