Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:28:47 2012 Optimize a model with 40279 rows, 36290 columns and 156178 nonzeros Presolve removed 404 rows and 4182 columns Presolve time: 0.99s Presolved: 39875 rows, 32108 columns, 150628 nonzeros Variable types: 0 continuous, 32108 integer (32108 binary) Found heuristic solution: objective 190.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29243 3.0001274e+00 3.544167e+02 0.000000e+00 5s 36882 3.0001472e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 36882 iterations, 10.16 seconds Total elapsed time = 21.34s 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% - 25s Explored 0 nodes (78837 simplex iterations) in 25.08 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%