Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:27:26 2012 Optimize a model with 47402 rows, 43056 columns and 184228 nonzeros Presolve removed 830 rows and 2 columns Presolve time: 1.17s Presolved: 46779 rows, 43054 columns, 224557 nonzeros Variable types: 0 continuous, 43054 integer (43054 binary) Found heuristic solution: objective 207.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 28063 3.0000746e+00 9.083333e+00 0.000000e+00 5s 33016 3.0000804e+00 1.383365e+01 0.000000e+00 10s 36565 3.0000000e+00 0.000000e+00 0.000000e+00 14s Root relaxation: objective 3.000000e+00, 36565 iterations, 14.04 seconds Total elapsed time = 28.49s Total elapsed time = 30.65s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 800 207.00000 3.00000 98.6% - 34s H 0 0 3.0000000 3.00000 0.0% - 36s Explored 0 nodes (104213 simplex iterations) in 36.44 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%