error.log show this on final line:
[Wed May 15 11:14:58 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed May 15 11:14:58 2013] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Wed May 15 11:14:58 2013] [error] Unable to configure RSA server private key
[Wed May 15 11:14:58 2013] [error] SSL Library Error: 185073780 error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch
I dont know if this error has something to do with the NameVirtualHost error which leaves no start the apache.