Optimize a model with 124 rows, 7626 columns and 15252 nonzeros Presolve time: 0.02s Presolved: 124 rows, 7626 columns, 15252 nonzeros Variable types: 0 continuous, 7626 integer (7626 binary) Root relaxation: objective 5.016400e+04, 163 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 50164.0000 0 24 - 50164.0000 - - 0s 0 0 50172.0000 0 18 - 50172.0000 - - 0s 0 0 50339.0000 0 24 - 50339.0000 - - 0s 0 0 50383.5000 0 22 - 50383.5000 - - 0s 0 0 50421.8929 0 36 - 50421.8929 - - 0s 0 0 50449.6154 0 27 - 50449.6154 - - 0s 0 0 50475.1731 0 43 - 50475.1731 - - 0s 0 0 50510.0625 0 25 - 50510.0625 - - 0s 0 0 50591.5333 0 42 - 50591.5333 - - 0s 0 0 50674.7222 0 42 - 50674.7222 - - 0s 0 0 50782.3333 0 24 - 50782.3333 - - 0s 0 0 50790.5000 0 30 - 50790.5000 - - 0s 0 0 50799.1923 0 37 - 50799.1923 - - 0s 0 0 50802.0357 0 43 - 50802.0357 - - 0s 0 0 50802.0357 0 41 - 50802.0357 - - 0s 0 2 50805.5476 0 31 - 50805.5476 - - 0s * 411 409 314 87596.000000 52100.5000 40.5% 4.8 1s * 501 302 60 64241.000000 52100.5000 18.9% 5.4 1s * 587 319 68 60957.000000 52107.5000 14.5% 5.3 2s * 653 368 38 60683.000000 52121.5000 14.1% 5.4 2s * 654 365 37 60641.000000 52121.5000 14.0% 5.4 2s * 657 359 42 60536.000000 52121.5000 13.9% 5.4 2s H 800 372 59791.000000 52256.5000 12.6% 5.6 2s H 815 356 59382.000000 58907.0000 0.80% 6.0 3s H 815 338 59087.000000 58907.0000 0.30% 6.0 3s H 819 324 59076.000000 58973.1429 0.17% 6.4 3s H 821 309 59030.000000 58979.0000 0.09% 6.4 3s Explored 822 nodes (5521 simplex iterations) in 3.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.903000000000e+04, best bound 5.903000000000e+04, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:44:12 2012