Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:52:25 2013 Optimize a model with 715 rows, 42315 columns and 84565 nonzeros Presolve time: 0.06s Presolved: 715 rows, 42315 columns, 84565 nonzeros Variable types: 42250 continuous, 65 integer (65 binary) Root relaxation: objective 6.569371e+04, 1373 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65693.7140 0 11 - 65693.7140 - - 0s H 0 0 70778.000000 65693.7140 7.18% - 0s 0 0 65877.7559 0 6 70778.0000 65877.7559 6.92% - 0s H 0 0 69430.895281 65877.7559 5.12% - 0s H 0 0 68955.000000 65877.7559 4.46% - 0s 0 0 65909.1936 0 6 68955.0000 65909.1936 4.42% - 0s 0 0 65924.6577 0 4 68955.0000 65924.6577 4.39% - 0s H 0 0 68931.000000 65924.6577 4.36% - 0s 0 0 65925.2551 0 4 68931.0000 65925.2551 4.36% - 0s H 0 0 68900.000000 65925.2551 4.32% - 0s 0 0 65925.2551 0 4 68900.0000 65925.2551 4.32% - 0s 0 0 65926.0847 0 4 68900.0000 65926.0847 4.32% - 0s 0 0 65926.0847 0 4 68900.0000 65926.0847 4.32% - 0s H 0 0 66547.000000 65926.0847 0.93% - 1s 0 0 65926.0847 0 11 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 6 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 6 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 4 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 4 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 4 66547.0000 65926.0847 0.93% - 1s 0 0 65926.0847 0 4 66547.0000 65926.0847 0.93% - 1s 0 2 65928.2123 0 4 66547.0000 65928.2123 0.93% - 1s H 8 8 66544.000000 66017.1844 0.79% 30.8 1s H 11 7 66129.000000 66017.1844 0.17% 27.2 2s * 16 5 14 66096.000000 66017.1844 0.12% 22.5 2s Cutting planes: Implied bound: 88 Flow cover: 5 Explored 22 nodes (3922 simplex iterations) in 2.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.609600000000e+04, best bound 6.609600000000e+04, gap 0.0%