Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:08:05 2012 Optimize a model with 37554 rows, 34410 columns and 146148 nonzeros Presolve removed 1128 rows and 2962 columns Presolve time: 0.93s Presolved: 36426 rows, 31448 columns, 140019 nonzeros Variable types: 0 continuous, 31448 integer (31448 binary) Found heuristic solution: objective 185.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22410 3.0000735e+00 9.860000e+00 0.000000e+00 5s 24120 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 24120 iterations, 5.86 seconds Total elapsed time = 22.24s 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 (70893 simplex iterations) in 24.82 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%