Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:19:24 2013 Optimize a model with 106081 rows, 7396 columns and 321726 nonzeros Presolve removed 4611 rows and 3702 columns Presolve time: 0.98s Presolved: 101470 rows, 3694 columns, 308560 nonzeros Variable types: 50 continuous, 3644 integer (3644 binary) Found heuristic solution: objective 170452.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 26963 1.0376349e+05 0.000000e+00 9.636801e+08 5s 53974 1.0810380e+05 0.000000e+00 5.783714e+07 10s 81284 1.1113558e+05 0.000000e+00 1.680046e+07 15s 101164 1.1626628e+05 0.000000e+00 0.000000e+00 18s 101164 1.1626628e+05 0.000000e+00 0.000000e+00 18s Root relaxation: objective 1.162663e+05, 101164 iterations, 18.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 116266.276 0 24 170452.000 116266.276 31.8% - 19s H 0 0 116297.00000 116266.276 0.03% - 19s H 0 0 116293.00000 116266.276 0.02% - 19s H 0 0 116287.00000 116266.276 0.02% - 19s 0 0 116266.443 0 52 116287.000 116266.443 0.02% - 20s 0 0 116266.443 0 18 116287.000 116266.443 0.02% - 21s H 0 0 116284.00000 116266.443 0.02% - 21s H 0 0 116281.00000 116266.443 0.01% - 21s 0 0 116266.445 0 55 116281.000 116266.445 0.01% - 21s H 0 0 116276.00000 116266.445 0.01% - 21s Cutting planes: Gomory: 5 Implied bound: 1 MIR: 6 Zero half: 1 Explored 0 nodes (109616 simplex iterations) in 21.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162760000000e+05, best bound 1.162670000000e+05, gap 0.0077%