Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:54:26 2012 Optimize a model with 38023 rows, 38612 columns and 151702 nonzeros Presolve removed 422 rows and 5490 columns Presolve time: 0.93s Presolved: 37601 rows, 33122 columns, 144850 nonzeros Variable types: 0 continuous, 33122 integer (33122 binary) Found heuristic solution: objective 196.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27201 3.0000720e+00 1.117685e+02 0.000000e+00 5s 28817 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 28817 iterations, 6.14 seconds Total elapsed time = 21.27s 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% - 24s Explored 0 nodes (79517 simplex iterations) in 24.17 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%