Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:13:39 2012 Optimize a model with 4465 rows, 135 columns and 8930 nonzeros Presolve removed 3163 rows and 0 columns Presolve time: 0.16s Presolved: 1302 rows, 135 columns, 8976 nonzeros Variable types: 0 continuous, 135 integer (135 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.776249e+01, 646 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.76249 0 134 8.00000 17.76249 122% - 0s 0 0 17.16676 0 134 8.00000 17.16676 115% - 0s H 0 0 10.0000000 17.16676 71.7% - 0s 0 0 17.11964 0 132 10.00000 17.11964 71.2% - 0s 0 0 17.08463 0 133 10.00000 17.08463 70.8% - 0s 0 0 17.06907 0 133 10.00000 17.06907 70.7% - 1s 0 0 17.06038 0 133 10.00000 17.06038 70.6% - 1s 0 0 17.04975 0 134 10.00000 17.04975 70.5% - 1s 0 0 17.04287 0 133 10.00000 17.04287 70.4% - 1s 0 0 17.04188 0 133 10.00000 17.04188 70.4% - 1s 0 0 17.04185 0 133 10.00000 17.04185 70.4% - 2s 0 0 17.04036 0 133 10.00000 17.04036 70.4% - 2s 0 0 17.03955 0 133 10.00000 17.03955 70.4% - 2s 0 0 17.03341 0 132 10.00000 17.03341 70.3% - 2s 0 0 17.03265 0 133 10.00000 17.03265 70.3% - 2s 0 2 17.02547 0 133 10.00000 17.02547 70.3% - 3s 262 147 12.75294 12 66 10.00000 15.37626 53.8% 75.8 5s Cutting planes: Clique: 135 Explored 796 nodes (55125 simplex iterations) in 8.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%