Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:52:31 2012 Optimize a model with 3040 rows, 110 columns and 6080 nonzeros Presolve removed 2137 rows and 0 columns Presolve time: 0.09s Presolved: 903 rows, 110 columns, 6216 nonzeros Variable types: 0 continuous, 110 integer (110 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.492224e+01, 496 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.92224 0 105 7.00000 14.92224 113% - 0s H 0 0 9.0000000 14.92224 65.8% - 0s 0 0 14.65020 0 109 9.00000 14.65020 62.8% - 0s 0 0 14.55738 0 109 9.00000 14.55738 61.7% - 0s 0 0 14.43849 0 110 9.00000 14.43849 60.4% - 0s 0 0 14.39280 0 110 9.00000 14.39280 59.9% - 0s 0 0 14.34725 0 110 9.00000 14.34725 59.4% - 0s 0 0 14.33502 0 110 9.00000 14.33502 59.3% - 1s 0 0 14.33246 0 110 9.00000 14.33246 59.2% - 1s 0 0 14.33223 0 110 9.00000 14.33223 59.2% - 1s 0 0 14.33192 0 110 9.00000 14.33192 59.2% - 1s 0 0 14.32947 0 110 9.00000 14.32947 59.2% - 1s 0 0 14.32679 0 110 9.00000 14.32679 59.2% - 1s 0 0 14.32620 0 110 9.00000 14.32620 59.2% - 2s 0 0 14.32496 0 110 9.00000 14.32496 59.2% - 2s 0 0 14.32417 0 110 9.00000 14.32417 59.2% - 2s 0 2 14.32409 0 110 9.00000 14.32409 59.2% - 2s H 56 31 10.0000000 14.22485 42.2% 72.9 2s Cutting planes: Clique: 95 Explored 134 nodes (11045 simplex iterations) in 3.26 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%