Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:05:39 2012 Optimize a model with 41614 rows, 42230 columns and 166048 nonzeros Presolve removed 853 rows and 6357 columns Presolve time: 1.04s Presolved: 40761 rows, 35873 columns, 157245 nonzeros Variable types: 0 continuous, 35873 integer (35873 binary) Found heuristic solution: objective 205.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29839 3.0000769e+00 1.527775e+02 0.000000e+00 5s 35313 3.0000843e+00 6.374817e-01 0.000000e+00 10s 36221 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 36221 iterations, 10.94 seconds Total elapsed time = 26.93s 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% - 29s Explored 0 nodes (82814 simplex iterations) in 29.34 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%