Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:04:55 2012 Optimize a model with 4125 rows, 128 columns and 8250 nonzeros Presolve removed 2978 rows and 0 columns Presolve time: 0.14s Presolved: 1147 rows, 128 columns, 8145 nonzeros Variable types: 0 continuous, 128 integer (128 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.644012e+01, 554 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.44012 0 124 7.00000 16.44012 135% - 0s H 0 0 9.0000000 16.44012 82.7% - 0s 0 0 16.12950 0 128 9.00000 16.12950 79.2% - 0s 0 0 16.03129 0 128 9.00000 16.03129 78.1% - 0s 0 0 16.01501 0 128 9.00000 16.01501 77.9% - 0s 0 0 16.00256 0 128 9.00000 16.00256 77.8% - 0s 0 0 16.00252 0 128 9.00000 16.00252 77.8% - 1s 0 0 15.99660 0 128 9.00000 15.99660 77.7% - 1s 0 0 15.98822 0 128 9.00000 15.98822 77.6% - 1s 0 0 15.98598 0 128 9.00000 15.98598 77.6% - 1s 0 0 15.98146 0 128 9.00000 15.98146 77.6% - 1s 0 0 15.97916 0 128 9.00000 15.97916 77.5% - 2s 0 0 15.97725 0 128 9.00000 15.97725 77.5% - 2s H 0 0 10.0000000 15.97725 59.8% - 2s 0 0 15.97704 0 128 10.00000 15.97704 59.8% - 2s 0 2 15.97612 0 128 10.00000 15.97612 59.8% - 2s 322 50 11.04069 9 43 10.00000 12.30113 23.0% 84.0 5s Cutting planes: Clique: 96 Explored 373 nodes (30477 simplex iterations) in 5.18 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%