Optimize a model with 225 rows, 25200 columns and 50400 nonzeros Presolve time: 0.13s Presolved: 225 rows, 25200 columns, 50400 nonzeros Variable types: 0 continuous, 25200 integer (25200 binary) Root relaxation: objective 3.757500e+03, 339 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3757.50000 0 36 - 3757.50000 - - 0s 0 0 3774.00000 0 38 - 3774.00000 - - 0s 0 0 3778.83333 0 38 - 3778.83333 - - 0s 0 0 3788.00000 0 48 - 3788.00000 - - 0s 0 0 3792.16667 0 59 - 3792.16667 - - 0s 0 0 3795.29167 0 59 - 3795.29167 - - 0s 0 0 3797.25000 0 35 - 3797.25000 - - 0s 0 0 3797.87500 0 37 - 3797.87500 - - 0s 0 0 3798.88889 0 29 - 3798.88889 - - 0s 0 0 3799.20000 0 28 - 3799.20000 - - 0s 0 0 3799.90000 0 16 - 3799.90000 - - 0s 0 0 3799.96667 0 34 - 3799.96667 - - 1s 0 0 3799.96667 0 30 - 3799.96667 - - 1s 0 2 3799.97727 0 30 - 3799.97727 - - 2s 42 44 3942.00000 28 26 - 3848.50000 - 13.8 5s * 110 108 77 4004.0000000 3848.50000 3.88% 9.2 9s 123 113 3898.00000 8 57 4004.00000 3848.50000 3.88% 9.4 10s 213 202 3979.75000 81 35 4004.00000 3848.50000 3.88% 8.6 15s 294 272 3921.00000 46 41 4004.00000 3851.30556 3.81% 8.1 20s 393 350 3901.50000 9 51 4004.00000 3851.75000 3.80% 7.7 25s 474 431 3947.00000 63 14 4004.00000 3851.75000 3.80% 7.6 30s 567 524 3977.16667 114 41 4004.00000 3851.75000 3.80% 7.4 35s * 574 432 119 3978.0000000 3851.75000 3.17% 7.4 35s * 635 215 35 3932.0000000 3852.66667 2.02% 7.4 39s 639 213 3901.50000 8 73 3932.00000 3854.05556 1.98% 7.4 40s * 701 250 34 3929.0000000 3854.13636 1.91% 7.4 43s 718 255 3904.00000 13 36 3929.00000 3854.13636 1.91% 7.4 45s 797 315 3925.00000 24 46 3929.00000 3856.25000 1.85% 7.1 50s 821 333 3922.00000 19 149 3929.00000 3906.01369 0.59% 7.9 55s * 846 328 33 3916.0000000 3906.07886 0.25% 9.7 56s 975 336 infeasible 40 3916.00000 3909.00971 0.18% 11.0 60s Cutting planes: User: 24 Gomory: 43 Clique: 3 Zero half: 110 Explored 1069 nodes (15229 simplex iterations) in 64.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.916000000001e+03, best bound 3.916000000001e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 06:03:08 2012