Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:05 2013 Optimize a model with 980 rows, 1472 columns and 1960 nonzeros Model has 490 quadratic constraints Presolve time: 0.00s Presolved: 980 rows, 1472 columns, 1960 nonzeros Presolved model has 490 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.470e+03 Factor NZ : 3.433e+03 (roughly 1 MByte of memory) Factor Ops : 1.226e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.01267987e+05 0.00000000e+00 2.84e-14 4.69e-01 2.82e+02 0s 1 8.43749247e+04 1.72413507e+04 1.05e-08 5.18e-05 4.57e+01 0s 2 6.20919272e+04 4.83760408e+04 1.87e-08 7.46e-06 9.33e+00 0s 3 5.60106187e+04 5.42663719e+04 2.37e-09 1.95e-06 1.19e+00 0s 4 5.51753581e+04 5.49706439e+04 4.61e-11 4.14e-07 1.39e-01 0s 5 5.51542742e+04 5.50944010e+04 2.84e-14 1.33e-07 4.07e-02 0s 6 5.51531118e+04 5.51277004e+04 1.42e-14 5.53e-08 1.73e-02 0s 7 5.51517646e+04 5.51369477e+04 1.42e-14 3.34e-08 1.01e-02 0s 8 5.51515067e+04 5.51385700e+04 2.13e-14 2.95e-08 8.80e-03 0s 9 5.51512944e+04 5.51460428e+04 1.42e-14 1.15e-08 3.57e-03 0s 10 5.51511869e+04 5.51473182e+04 1.42e-14 8.31e-09 2.63e-03 0s 11 5.51510932e+04 5.51493047e+04 1.42e-14 3.30e-09 1.22e-03 0s 12 5.51505877e+04 5.51496342e+04 1.42e-14 2.40e-09 6.49e-04 0s 13 5.51504765e+04 5.51497933e+04 4.97e-14 1.91e-09 4.65e-04 0s 14 5.51504289e+04 5.51498907e+04 9.95e-14 1.59e-09 3.66e-04 0s 15 5.51504195e+04 5.51502877e+04 2.84e-14 3.14e-10 8.96e-05 0s 16 5.51504143e+04 5.51503215e+04 6.39e-14 1.90e-10 6.32e-05 0s 17 5.51504100e+04 5.51503263e+04 5.68e-14 1.74e-10 5.69e-05 0s 18 5.51503902e+04 5.51503295e+04 2.84e-14 2.73e-10 4.13e-05 0s 19 5.51503849e+04 5.51503353e+04 9.24e-14 2.36e-10 3.38e-05 0s Barrier solved model in 19 iterations and 0.05 seconds Optimal objective 5.51503849e+04