Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:47:08 2013 Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.58s Presolved: 3100 rows, 32450 columns, 64900 nonzeros Variable types: 30000 continuous, 2450 integer (2450 binary) Root relaxation: objective 1.650739e+05, 4072 iterations, 0.21 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 2 - 165073.856 - - 0s 0 0 165100.411 0 3 - 165100.411 - - 1s 0 0 165208.679 0 2 - 165208.679 - - 1s 0 0 165226.526 0 2 - 165226.526 - - 1s 0 0 165288.141 0 2 - 165288.141 - - 1s 0 0 165298.085 0 2 - 165298.085 - - 1s 0 0 165340.300 0 2 - 165340.300 - - 1s 0 0 165348.019 0 2 - 165348.019 - - 1s 0 0 165348.019 0 2 - 165348.019 - - 1s 0 0 165351.401 0 2 - 165351.401 - - 1s 0 0 165355.910 0 2 - 165355.910 - - 2s 0 0 165365.252 0 2 - 165365.252 - - 2s 0 0 165367.907 0 2 - 165367.907 - - 2s 0 0 165368.500 0 2 - 165368.500 - - 2s 0 0 165369.174 0 2 - 165369.174 - - 2s 0 0 165369.302 0 2 - 165369.302 - - 2s 0 0 165369.628 0 2 - 165369.628 - - 2s 0 0 165370.592 0 2 - 165370.592 - - 2s 0 0 165370.744 0 2 - 165370.744 - - 2s 0 0 165370.896 0 2 - 165370.896 - - 3s 0 0 165370.900 0 2 - 165370.900 - - 3s 0 0 165370.900 0 2 - 165370.900 - - 3s H 0 0 240425.70288 165370.900 31.2% - 4s 0 2 165376.927 0 2 240425.703 165376.927 31.2% - 4s * 21 6 20 165633.65551 165492.468 0.09% 15.6 4s H 27 5 165630.31826 165515.767 0.07% 12.7 4s 40 7 165550.864 12 1 165630.318 165550.864 0.05% 11.2 5s * 66 2 12 165621.92658 165604.044 0.01% 11.0 5s Cutting planes: Flow cover: 17 Explored 68 nodes (5493 simplex iterations) in 5.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656219265842e+05, best bound 1.656083085927e+05, gap 0.0082%