Gurobi 5.0.1 (linux64) logging started Wed Nov 28 03:51:41 2012 Optimize a model with 29917 rows, 29853 columns and 117428 nonzeros Presolve removed 981 rows and 981 columns Presolve time: 0.17s Presolved: 28936 rows, 28872 columns, 115466 nonzeros Variable types: 27880 continuous, 992 integer (992 binary) Found heuristic solution: objective 11462.000000 Found heuristic solution: objective 6596.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 15867 2.9520002e+03 4.415102e+03 0.000000e+00 5s 23721 2.9520003e+03 8.431799e+02 0.000000e+00 10s 27567 2.9520000e+03 0.000000e+00 0.000000e+00 13s Root relaxation: objective 2.952000e+03, 27567 iterations, 12.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2952.00000 0 32 6596.00000 2952.00000 55.2% - 14s H 0 0 3680.0000000 2952.00000 19.8% - 14s 0 0 2952.00000 0 38 3680.00000 2952.00000 19.8% - 14s * 0 0 0 2952.0000000 2952.00000 0.0% - 16s Cutting planes: Gomory: 2 Explored 0 nodes (48598 simplex iterations) in 16.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.952000000000e+03, best bound 2.952000000000e+03, gap 0.0%