% single signals emitted more than once 

module SingleError :

input I0, I1, I2;
output O1: integer, O2: integer;

present I0 then 
   emit O1(0);
   emit O2(0)
end present;
present I1 then 
   emit O1(1)
end present;
present I2 then 
   emit O2(2)
end present
end module