Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:30:42 2012 Optimize a model with 40279 rows, 36290 columns and 156178 nonzeros Presolve removed 382 rows and 2 columns Presolve time: 0.91s Presolved: 40087 rows, 36288 columns, 190908 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 25791 3.0000726e+00 1.405053e+01 0.000000e+00 5s 29370 3.0000000e+00 0.000000e+00 0.000000e+00 8s Root relaxation: objective 3.000000e+00, 29370 iterations, 7.74 seconds Total elapsed time = 19.70s Total elapsed time = 20.32s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 110 190.00000 3.00000 98.4% - 21s H 0 0 3.0000000 3.00000 0.0% - 21s Explored 0 nodes (74114 simplex iterations) in 21.55 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%