Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:40:23 2012 Optimize a model with 5320 rows, 146 columns and 10640 nonzeros Presolve removed 3848 rows and 0 columns Presolve time: 0.21s Presolved: 1472 rows, 146 columns, 10715 nonzeros Variable types: 0 continuous, 146 integer (146 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.844665e+01, 662 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.44665 0 143 7.00000 18.44665 164% - 0s H 0 0 10.0000000 18.44665 84.5% - 0s 0 0 17.94580 0 146 10.00000 17.94580 79.5% - 0s 0 0 17.86782 0 145 10.00000 17.86782 78.7% - 0s 0 0 17.83407 0 145 10.00000 17.83407 78.3% - 0s 0 0 17.82143 0 146 10.00000 17.82143 78.2% - 1s 0 0 17.80157 0 146 10.00000 17.80157 78.0% - 1s 0 0 17.79198 0 146 10.00000 17.79198 77.9% - 1s 0 0 17.78447 0 146 10.00000 17.78447 77.8% - 1s 0 0 17.77669 0 146 10.00000 17.77669 77.8% - 1s 0 0 17.77627 0 146 10.00000 17.77627 77.8% - 2s H 0 0 11.0000000 17.77627 61.6% - 2s 0 0 17.77616 0 146 11.00000 17.77616 61.6% - 2s 0 2 17.77586 0 146 11.00000 17.77586 61.6% - 2s 230 108 cutoff 19 11.00000 16.32746 48.4% 93.3 5s Cutting planes: Clique: 129 Explored 460 nodes (44632 simplex iterations) in 6.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%