Problem SOStools, Matlab 2010b, SeDuMi

I have problem with Matlab 2010b, especially with SeDuMi 1.3 and SOStools package.

I want to use "findsos" but I have problem with error "??? Error using ==> sprintf Function is not defined for sparse inputs." and more.

CODE:

>> syms x y; >> P=x^2+2*x*y-6*x^2*y+y^2-6*x*y^2+9*x^2*y^2+2*x^3*y^2+2*x^2*y^3-6*x^3*y^3+x^4*y^4

P =

x^4*y^4 - 6*x^3*y^3 + 2*x^3*y^2 + 2*x^2*y^3 + 9*x^2*y^2 - 6*x^2*y + x^2 - 6*x*y^2 + 2*x*y + y^2

>> [Q,Z] = findsos(P,'rational') Size: 64 22

SeDuMi 1.3 by AdvOL, 2005-2008 and Jos F. Sturm, 1998-2003. Alg = 2: xz-corrector, Adaptive Step-Differentiation, theta = 0.250, beta = 0.500 eqs m = 22, order n = 9, dim = 65, blocks = 2 nnz(A) = 36 + 0, nnz(ADA) = 484, nnz(L) = 253 it : b*y gap delta rate t/tP* t/tD* feas cg cg prec 0 : 2.18E+000 0.000 1 : 1.81E-002 4.83E-001 0.000 0.2217 0.9000 0.9000 0.97 1 1 9.0E-001 2 : -3.38E-002 9.35E-002 0.000 0.1938 0.9000 0.9000 1.02 1 1 1.2E+000 3 : -2.73E-003 1.72E-002 0.000 0.1838 0.9000 0.9000 1.02 1 1 1.0E+000 4 : 3.79E-003 3.40E-003 0.000 0.1978 0.9000 0.9000 0.88 1 1 6.8E-003 5 : 2.57E-003 6.78E-004 0.000 0.1995 0.9000 0.9000 0.67 1 1 1.7E-003 6 : 3.82E-005 2.77E-005 0.000 0.0409 0.9900 0.9900 0.95 1 1 6.9E-005 7 : -3.87E-006 1.70E-006 0.454 0.0612 0.9900 0.9900 1.17 1 1 4.6E-003 8 : 1.87E-007 1.03E-007 0.343 0.0606 0.5646 0.9900 1.44 2 2 9.5E-007 9 : -9.27E-008 3.16E-008 0.000 0.3074 0.7468 0.9000 1.65 5 6 6.4E-005 10 : -1.31E-008 6.59E-009 0.000 0.2084 0.8743 0.9000 1.76 8 7 5.9E-006 11 : -1.72E-009 1.09E-009 0.099 0.1652 0.9000 0.9024 1.45 17 22 6.2E-007

Run into numerical problems.

iter seconds digits c*x b*y 11 0.7 9.7 0.0000000000e+000 -1.7227688561e-009

Ax-b = 3.7e-008, [Ay-c]_+ = 1.6E-010, x= 1.2e+001, y= 8.9e-001

Detailed timing (sec)

   Pre          IPM          Post
9.210E-001    1.669E+000    1.400E-001    
Max-norms: ||b||=9, ||c|| = 0,
Cholesky |add|=0, |skip| = 4, ||L.L|| = 9.0631.

Residual norm: 3.6736e-008

         iter: 11
    feasratio: 1.4495
         pinf: 0
         dinf: 0
       numerr: 0
       timing: [0.9210 1.6690 0.1400]
      wallsec: 2.7300
       cpusec: 1.0452

??? Error using ==> sprintf Function is not defined for sparse inputs.

Error in ==> int2str at 32 s = sprintf(['%', formatConversion], x);

Error in ==> mysympower at 44 charexpr = [charexpr,char(vartable(i)),'^',int2str(Z(j,i)),'*'];

Error in ==> findsos at 137 Z = mysympower(vars,prog.extravar.Z{1});

Please, how can I solve this problem? I think I've tried everything...