Gurobi 5.0.1 (linux64) logging started Tue Nov 20 07:23:44 2012 Optimize a model with 1118 rows, 152 columns and 2236 nonzeros Presolve removed 432 rows and 0 columns Presolve time: 0.01s Presolved: 686 rows, 152 columns, 1789 nonzeros Variable types: 0 continuous, 152 integer (152 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 5.033934e+01, 493 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 50.33934 0 152 33.00000 50.33934 52.5% - 0s H 0 0 34.0000000 50.33934 48.1% - 0s 0 0 50.02180 0 152 34.00000 50.02180 47.1% - 0s H 0 0 35.0000000 50.02180 42.9% - 0s 0 0 49.89943 0 152 35.00000 49.89943 42.6% - 0s 0 0 49.72332 0 152 35.00000 49.72332 42.1% - 0s 0 0 49.62815 0 152 35.00000 49.62815 41.8% - 0s 0 0 49.47386 0 152 35.00000 49.47386 41.4% - 0s 0 0 49.30664 0 152 35.00000 49.30664 40.9% - 0s 0 0 49.18776 0 152 35.00000 49.18776 40.5% - 0s 0 0 49.09263 0 152 35.00000 49.09263 40.3% - 0s 0 0 48.98197 0 151 35.00000 48.98197 39.9% - 0s 0 0 48.78002 0 150 35.00000 48.78002 39.4% - 0s 0 0 48.64423 0 150 35.00000 48.64423 39.0% - 0s 0 0 48.52884 0 149 35.00000 48.52884 38.7% - 0s 0 0 48.44417 0 150 35.00000 48.44417 38.4% - 0s 0 0 48.32176 0 148 35.00000 48.32176 38.1% - 0s 0 0 48.13378 0 149 35.00000 48.13378 37.5% - 0s 0 0 48.11962 0 150 35.00000 48.11962 37.5% - 0s 0 0 48.08905 0 150 35.00000 48.08905 37.4% - 0s 0 0 48.05680 0 151 35.00000 48.05680 37.3% - 0s 0 0 48.04051 0 151 35.00000 48.04051 37.3% - 0s 0 0 47.98824 0 150 35.00000 47.98824 37.1% - 0s 0 0 47.94871 0 151 35.00000 47.94871 37.0% - 0s 0 0 47.93559 0 151 35.00000 47.93559 37.0% - 0s H 0 0 37.0000000 47.93559 29.6% - 0s 0 0 47.90197 0 151 37.00000 47.90197 29.5% - 0s 0 0 47.85838 0 152 37.00000 47.85838 29.3% - 0s 0 0 47.82295 0 152 37.00000 47.82295 29.3% - 0s 0 0 47.76539 0 152 37.00000 47.76539 29.1% - 0s 0 0 47.75080 0 152 37.00000 47.75080 29.1% - 0s 0 0 47.73536 0 151 37.00000 47.73536 29.0% - 0s 0 0 47.72375 0 151 37.00000 47.72375 29.0% - 0s 0 2 47.72311 0 151 37.00000 47.72311 29.0% - 0s 608 233 39.12766 22 150 37.00000 44.77822 21.0% 51.7 5s 624 245 44.77822 14 134 37.00000 44.77822 21.0% 53.8 10s 1980 773 43.00000 21 115 37.00000 43.83067 18.5% 52.8 15s H 2747 969 38.0000000 43.16582 13.6% 49.2 16s 4095 1221 39.46041 36 111 38.00000 42.09137 10.8% 45.7 20s 6561 1206 39.36161 30 96 38.00000 40.91753 7.68% 42.2 25s Cutting planes: Gomory: 3 Clique: 3 Zero half: 62 Mod-K: 1 Explored 9421 nodes (361381 simplex iterations) in 29.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%