Unexpected empty set of conflict terms

[balasub]

The following unsolvable partial model generates an empty set of unsat terms.

domain Mapping
{
Component ::= new (id: Integer, utilization: Real).
Processor ::= new (id: Integer).
Mapping ::= new (c: Component, p: Processor).

// The utilization must be > 0
invalidUtilization :- c is Component, c.utilization <= 0.

badMapping :- p is Processor,
s = sum(0.0, { c.utilization |
c is Component, Mapping(c, p) }), s > 100.

conforms no badMapping, no invalidUtilization, invalidUtilization.

}

partial model pm of Mapping
{
c1 is Component(0, x).
c2 is Component(1, y).
p1 is Processor(0).
Mapping(c1, p1).
Mapping(c2, p1).
}