Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:23:06 2013 Optimize a model with 83902 rows, 82992 columns and 331422 nonzeros Presolve removed 91 rows and 0 columns Presolve time: 0.41s Presolved: 83811 rows, 82992 columns, 331331 nonzeros Variable types: 82901 continuous, 91 integer (91 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8857 7.9706339e+04 5.272625e+04 0.000000e+00 5s 10672 8.1284020e+04 2.870236e+04 0.000000e+00 10s 12334 8.1675067e+04 0.000000e+00 0.000000e+00 15s Root relaxation: objective 8.167507e+04, 12334 iterations, 14.88 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81675.0669 0 67 - 81675.0669 - - 15s H 0 0 148950.00000 81675.0669 45.2% - 25s 0 0 112736.353 0 18 148950.000 112736.353 24.3% - 49s H 0 0 143919.00000 112736.353 21.7% - 50s 0 0 119609.322 0 11 143919.000 119609.322 16.9% - 55s H 0 0 135352.00000 119609.322 11.6% - 56s 0 0 120872.246 0 6 135352.000 120872.246 10.7% - 60s H 0 0 131652.92520 120872.246 8.19% - 60s H 0 0 129757.00000 120872.246 6.85% - 60s 0 0 122263.206 0 2 129757.000 122263.206 5.78% - 62s H 0 0 123490.80552 122263.206 0.99% - 62s H 0 0 123457.00000 122263.206 0.97% - 62s 0 0 122265.167 0 2 123457.000 122265.167 0.97% - 63s 0 0 122265.679 0 2 123457.000 122265.679 0.96% - 63s H 0 0 123452.00000 122265.679 0.96% - 63s 0 2 122283.791 0 2 123452.000 122283.791 0.95% - 65s H 6 6 122896.00000 122553.731 0.28% 418 67s H 7 3 122766.00000 122559.250 0.17% 367 67s * 12 5 10 122667.00000 122559.500 0.09% 259 68s Cutting planes: Implied bound: 91 MIR: 4 Explored 17 nodes (38025 simplex iterations) in 68.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.226670000000e+05, best bound 1.226670000000e+05, gap 0.0%