Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:09:27 2012 Optimize a model with 4268 rows, 132 columns and 8536 nonzeros Presolve removed 3048 rows and 0 columns Presolve time: 0.15s Presolved: 1220 rows, 132 columns, 8578 nonzeros Variable types: 0 continuous, 132 integer (132 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.742200e+01, 604 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.42200 0 130 7.00000 17.42200 149% - 0s H 0 0 8.0000000 17.42200 118% - 0s 0 0 17.10969 0 131 8.00000 17.10969 114% - 0s H 0 0 9.0000000 17.10969 90.1% - 0s 0 0 16.91961 0 131 9.00000 16.91961 88.0% - 0s H 0 0 10.0000000 16.91961 69.2% - 0s 0 0 16.82137 0 131 10.00000 16.82137 68.2% - 0s 0 0 16.78253 0 132 10.00000 16.78253 67.8% - 1s 0 0 16.76370 0 131 10.00000 16.76370 67.6% - 1s 0 0 16.74465 0 132 10.00000 16.74465 67.4% - 1s 0 0 16.73395 0 132 10.00000 16.73395 67.3% - 1s 0 0 16.73253 0 132 10.00000 16.73253 67.3% - 1s 0 0 16.73126 0 132 10.00000 16.73126 67.3% - 2s 0 0 16.73074 0 132 10.00000 16.73074 67.3% - 2s 0 2 16.72970 0 132 10.00000 16.72970 67.3% - 2s 446 139 11.56196 8 41 10.00000 13.57538 35.8% 69.6 5s Cutting planes: Clique: 121 Explored 673 nodes (45707 simplex iterations) in 6.05 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%