Optimize a model with 150 rows, 11175 columns and 22350 nonzeros Presolve time: 0.02s Presolved: 150 rows, 11175 columns, 22350 nonzeros Variable types: 0 continuous, 11175 integer (11175 binary) Root relaxation: objective 6.281000e+03, 225 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6281.00000 0 22 - 6281.00000 - - 0s 0 0 6291.00000 0 12 - 6291.00000 - - 0s 0 0 6298.94444 0 36 - 6298.94444 - - 0s 0 0 6305.50000 0 13 - 6305.50000 - - 0s 0 0 6306.50000 0 35 - 6306.50000 - - 0s 0 0 6310.00000 0 6 - 6310.00000 - - 0s 0 0 6311.00000 0 6 - 6311.00000 - - 0s 0 0 6313.00000 0 18 - 6313.00000 - - 0s 0 0 6314.10000 0 37 - 6314.10000 - - 0s 0 0 6315.16667 0 32 - 6315.16667 - - 0s 0 0 6315.91667 0 48 - 6315.91667 - - 0s 0 0 6318.66667 0 31 - 6318.66667 - - 0s 0 0 6319.07143 0 21 - 6319.07143 - - 0s 0 0 6320.06725 0 59 - 6320.06725 - - 0s 0 0 6320.80769 0 36 - 6320.80769 - - 0s 0 0 6321.68421 0 47 - 6321.68421 - - 0s 0 0 6322.33333 0 47 - 6322.33333 - - 0s 0 2 6323.50000 0 47 - 6323.50000 - - 0s * 162 157 122 6969.0000000 6334.33333 9.11% 8.7 1s * 265 167 76 6708.0000000 6335.83333 5.55% 8.2 2s * 297 135 26 6624.0000000 6339.00000 4.30% 8.4 2s * 301 126 27 6612.0000000 6339.00000 4.13% 8.3 2s * 332 135 17 6590.0000000 6339.33333 3.80% 8.7 2s * 542 263 16 6589.0000000 6360.50000 3.47% 8.8 3s * 554 268 18 6586.0000000 6360.50000 3.42% 8.8 3s * 670 248 24 6568.0000000 6462.50000 1.61% 8.9 4s * 687 191 19 6558.0000000 6465.50000 1.41% 8.9 4s 794 206 6556.75000 14 33 6558.00000 6486.25000 1.09% 9.8 5s H 800 128 6540.0000000 6488.00000 0.80% 9.8 5s H 805 125 6528.0000000 6522.10302 0.09% 9.8 5s Cutting planes: Gomory: 7 Zero half: 5 Explored 809 nodes (8638 simplex iterations) in 5.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.528000000000e+03, best bound 6.528000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:45:09 2012