Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:37:18 2012 Optimize a model with 32549 rows, 30800 columns and 127573 nonzeros Presolve removed 1076 rows and 4202 columns Presolve time: 0.79s Presolved: 31473 rows, 26598 columns, 120388 nonzeros Variable types: 0 continuous, 26598 integer (26598 binary) Found heuristic solution: objective 175.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24578 3.0000705e+00 8.942188e+00 0.000000e+00 5s 27350 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 27350 iterations, 6.76 seconds Total elapsed time = 15.31s 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% - 15s Explored 0 nodes (59042 simplex iterations) in 15.74 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%