Gurobi 5.0.1 (linux64) logging started Tue Jan 22 22:12:01 2013 Optimize a model with 172000 rows, 258002 columns and 344000 nonzeros Model has 86000 quadratic constraints Presolve time: 0.56s Presolved: 172000 rows, 258002 columns, 344000 nonzeros Presolved model has 86000 second-order cone constraints Ordering time: 0.03s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.580e+05 Factor NZ : 6.020e+05 (roughly 180 MBytes of memory) Factor Ops : 2.150e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.23340583e+07 0.00000000e+00 1.80e-11 4.99e-01 2.90e+02 1s 1 1.48073913e+07 3.07201182e+06 5.86e-07 4.53e-05 4.55e+01 1s 2 1.11319223e+07 8.88235346e+06 8.44e-08 2.69e-06 8.72e+00 2s 3 1.02588033e+07 9.80821662e+06 1.85e-08 3.22e-07 1.75e+00 2s 4 9.97764329e+06 9.94472572e+06 1.06e-09 1.62e-08 1.28e-01 3s 5 9.95504444e+06 9.95388198e+06 4.76e-11 1.67e-12 4.51e-03 3s 6 9.95413419e+06 9.95393682e+06 8.16e-12 2.07e-12 7.65e-04 3s 7 9.95398218e+06 9.95395043e+06 1.42e-12 3.50e-12 1.23e-04 3s 8 9.95396233e+06 9.95395341e+06 8.46e-13 2.51e-12 3.46e-05 4s Barrier solved model in 8 iterations and 3.83 seconds Optimal objective 9.95396233e+06