Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:55 2013 Optimize a model with 649 rows, 34869 columns and 69679 nonzeros Presolve time: 0.05s Presolved: 649 rows, 34869 columns, 69679 nonzeros Variable types: 34810 continuous, 59 integer (59 binary) Root relaxation: objective 6.260405e+04, 1330 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 62604.0500 0 9 - 62604.0500 - - 0s H 0 0 67330.000000 62604.0500 7.02% - 0s H 0 0 66808.000000 62604.0500 6.29% - 0s H 0 0 63829.000000 62604.0500 1.92% - 0s 0 0 63057.0115 0 6 63829.0000 63057.0115 1.21% - 0s 0 0 63123.7874 0 8 63829.0000 63123.7874 1.10% - 0s 0 0 63135.4567 0 6 63829.0000 63135.4567 1.09% - 0s 0 0 63139.4483 0 7 63829.0000 63139.4483 1.08% - 0s 0 0 63139.4704 0 6 63829.0000 63139.4704 1.08% - 0s 0 0 63139.4704 0 9 63829.0000 63139.4704 1.08% - 0s 0 0 63139.4704 0 6 63829.0000 63139.4704 1.08% - 0s 0 0 63139.4704 0 7 63829.0000 63139.4704 1.08% - 1s 0 0 63139.4704 0 6 63829.0000 63139.4704 1.08% - 1s 0 0 63139.4704 0 7 63829.0000 63139.4704 1.08% - 1s 0 0 63139.4704 0 7 63829.0000 63139.4704 1.08% - 1s 0 0 63139.4704 0 6 63829.0000 63139.4704 1.08% - 1s 0 0 63139.4704 0 6 63829.0000 63139.4704 1.08% - 1s 0 2 63144.0888 0 6 63829.0000 63144.0888 1.07% - 1s H 14 10 63640.000000 63301.4463 0.53% 67.8 1s * 15 11 12 63588.000000 63301.4463 0.45% 69.0 1s * 24 9 7 63459.000000 63343.9520 0.18% 64.4 1s Cutting planes: Implied bound: 154 Flow cover: 18 Explored 35 nodes (5113 simplex iterations) in 1.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.345900000000e+04, best bound 6.345900000000e+04, gap 0.0%