Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:00:46 2012 Optimize a model with 3762 rows, 124 columns and 7524 nonzeros Presolve removed 2672 rows and 0 columns Presolve time: 0.12s Presolved: 1090 rows, 124 columns, 7381 nonzeros Variable types: 0 continuous, 124 integer (124 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.718682e+01, 575 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.18682 0 120 6.00000 17.18682 186% - 0s H 0 0 7.0000000 17.18682 146% - 0s H 0 0 8.0000000 17.18682 115% - 0s 0 0 16.57275 0 124 8.00000 16.57275 107% - 0s H 0 0 9.0000000 16.57275 84.1% - 0s 0 0 16.43819 0 123 9.00000 16.43819 82.6% - 0s 0 0 16.38849 0 124 9.00000 16.38849 82.1% - 0s 0 0 16.37785 0 124 9.00000 16.37785 82.0% - 0s H 0 0 10.0000000 16.37785 63.8% - 0s 0 0 16.35947 0 123 10.00000 16.35947 63.6% - 1s 0 0 16.33024 0 124 10.00000 16.33024 63.3% - 1s 0 0 16.32716 0 124 10.00000 16.32716 63.3% - 1s 0 0 16.32144 0 124 10.00000 16.32144 63.2% - 1s 0 0 16.31712 0 124 10.00000 16.31712 63.2% - 1s 0 0 16.31634 0 124 10.00000 16.31634 63.2% - 1s 0 0 16.31601 0 124 10.00000 16.31601 63.2% - 2s 0 0 16.31577 0 124 10.00000 16.31577 63.2% - 2s 0 2 16.31271 0 124 10.00000 16.31271 63.1% - 2s Cutting planes: Clique: 134 Explored 464 nodes (33814 simplex iterations) in 4.94 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%