Port is bound more than once (Dezyne Reference Manual)

11.12.3 `port` is bound more than once

More than one binding is specified for a port of a system or one of its component instances:

interface ihello
{
  in void hello ();
  behavior {on hello:{}}
}

component hello
{
  provides ihello p;
  behavior {}
}

component instance_port_not_bound
{
  provides ihello p;
  system
  {
    hello h;
    hello i;
    p <=> h.p;
    p <=> i.p;
  }
}

This results in the following error messages:

port-bound-twice.dzn:20:5: error: port `p' is bound more than once
port-bound-twice.dzn:21:5: error: port `p' is bound more than once

11.12.3 port is bound more than once

11.12.3 `port` is bound more than once