Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:40:05 2012 Optimize a model with 41087 rows, 37056 columns and 159358 nonzeros Presolve removed 386 rows and 2 columns Presolve time: 1.08s Presolved: 40893 rows, 37054 columns, 194838 nonzeros Variable types: 0 continuous, 37054 integer (37054 binary) Found heuristic solution: objective 192.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24239 3.0000765e+00 3.000000e+01 0.000000e+00 5s 26180 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 26180 iterations, 6.97 seconds Total elapsed time = 20.50s 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% - 21s Explored 0 nodes (68403 simplex iterations) in 21.20 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%