Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:25:12 2013 Optimize a model with 627 rows, 32547 columns and 65037 nonzeros Presolve time: 0.04s Presolved: 627 rows, 32547 columns, 65037 nonzeros Variable types: 32490 continuous, 57 integer (57 binary) Root relaxation: objective 7.001534e+04, 1650 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 70015.3385 0 6 - 70015.3385 - - 0s H 0 0 72020.000000 70015.3385 2.78% - 0s H 0 0 71484.000000 70015.3385 2.05% - 0s 0 0 70264.5724 0 3 71484.0000 70264.5724 1.71% - 0s H 0 0 71385.000000 70264.5724 1.57% - 0s 0 0 70298.5412 0 2 71385.0000 70298.5412 1.52% - 0s H 0 0 70663.919540 70298.5412 0.52% - 0s H 0 0 70527.000000 70298.5412 0.32% - 0s 0 0 70305.4865 0 2 70527.0000 70305.4865 0.31% - 0s 0 0 70305.4865 0 6 70527.0000 70305.4865 0.31% - 0s 0 0 70305.4865 0 3 70527.0000 70305.4865 0.31% - 0s 0 0 70305.4865 0 2 70527.0000 70305.4865 0.31% - 0s H 0 0 70521.000000 70305.4865 0.31% - 0s 0 0 70306.5523 0 2 70521.0000 70306.5523 0.30% - 0s H 0 0 70399.000000 70306.5523 0.13% - 0s 0 0 70309.3507 0 2 70399.0000 70309.3507 0.13% - 0s 0 0 70309.4502 0 2 70399.0000 70309.4502 0.13% - 0s 0 0 70309.4502 0 2 70399.0000 70309.4502 0.13% - 0s 0 0 70309.4502 0 2 70399.0000 70309.4502 0.13% - 0s 0 0 70309.4502 0 2 70399.0000 70309.4502 0.13% - 0s 0 2 70316.2162 0 2 70399.0000 70316.2162 0.12% - 0s * 4 1 3 70391.000000 70387.7941 0.00% 27.0 0s Cutting planes: Implied bound: 32 Flow cover: 4 Explored 5 nodes (3166 simplex iterations) in 0.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.039100000000e+04, best bound 7.038779411765e+04, gap 0.0046%