Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:13:40 2013 Optimize a model with 759 rows, 47679 columns and 95289 nonzeros Presolve time: 0.07s Presolved: 759 rows, 47679 columns, 95289 nonzeros Variable types: 47610 continuous, 69 integer (69 binary) Root relaxation: objective 6.954299e+04, 1760 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69542.9913 0 7 - 69542.9913 - - 0s H 0 0 76582.000000 69542.9913 9.19% - 0s 0 0 69969.2151 0 6 76582.0000 69969.2151 8.63% - 0s H 0 0 73780.000000 69969.2151 5.17% - 0s 0 0 70110.9275 0 5 73780.0000 70110.9275 4.97% - 0s 0 0 70176.0824 0 5 73780.0000 70176.0824 4.88% - 0s H 0 0 73495.000000 70176.0824 4.52% - 0s 0 0 70195.5037 0 4 73495.0000 70195.5037 4.49% - 0s H 0 0 73408.000000 70195.5037 4.38% - 0s 0 0 70203.0064 0 4 73408.0000 70203.0064 4.37% - 0s H 0 0 73372.000000 70203.0064 4.32% - 0s 0 0 70203.4702 0 4 73372.0000 70203.4702 4.32% - 0s 0 0 70205.2508 0 4 73372.0000 70205.2508 4.32% - 0s H 0 0 73368.000000 70205.2508 4.31% - 0s 0 0 70205.2508 0 4 73368.0000 70205.2508 4.31% - 1s H 0 0 73362.000000 70205.2508 4.30% - 1s 0 0 70205.8666 0 4 73362.0000 70205.8666 4.30% - 1s 0 0 70205.8666 0 4 73362.0000 70205.8666 4.30% - 1s 0 2 70218.8698 0 4 73362.0000 70218.8698 4.28% - 1s H 1 1 73315.134615 70218.8698 4.22% 0.0 1s H 4 4 71477.000000 70411.5367 1.49% 66.5 1s H 8 8 71389.000000 70411.5367 1.37% 85.4 1s H 12 12 70830.000000 70411.5367 0.59% 73.2 1s H 13 11 70821.000000 70411.5367 0.58% 73.4 1s * 14 11 11 70812.000000 70411.5367 0.57% 69.8 1s H 20 5 70714.645161 70449.1278 0.38% 67.2 2s H 21 6 70676.000000 70449.1278 0.32% 66.1 2s H 29 3 70644.000000 70449.1278 0.28% 58.9 2s Cutting planes: Implied bound: 111 Flow cover: 6 Explored 49 nodes (4914 simplex iterations) in 2.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.064400000000e+04, best bound 7.064400000000e+04, gap 0.0%