Emilio Remolina
unread,Feb 29, 2012, 1:21:59 PM2/29/12Sign in to reply to author
Sign in to forward
You do not have permission to delete messages in this group
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to europa-users
All,
I'm getting a run time exception for the following 'dummy'
definition using a guard: (complete test case below)
Dummy::testGuards {
int i=[0,1];
if (i==0) {
this.start <= 1;
}
if (i==1) {
2==2;
}
}
The error says:
.\Solvers\base\Solver.cc:230: Error: !m_exhausted ||
m_decisionStack.empty() is false
Cannot be left in an exhausted state if there are still decisions to
evaluate.
psengine.PSException: Cannot be left in an exhausted state if there
are still decisions to evaluate.
at psengine.PSEngineInterfaceJNI.PSSolver_isExhausted(Native Method)
at psengine.PSSolver.isExhausted(Unknown Source)
at org.ops.ui.solver.swing.PSSolverDialog.stepSolver(Unknown Source)
If I replace the definition to use a boolean instead of i=[0,1] then
things work (see below).
Are there are any limitations when using multiple guards via something
like
int i=[0,10];
if (i==0) {} ... if (i==10){}.
Thanks,
-Emilio
---------------------------------------------
Here is the testing code;
#include "Resources.nddl"
class Dummy extends Timeline {
Dummy() {
super();
}
predicate testGuards{};
}
Dummy::testGuards {
int i=[0,1];
if (i==0) {
this.start <= 1;
}
if (i==1) {
2==2;
}
}
/*
Dummy::testGuards {
bool b;
if (b==true) {
this.start <=1;
}
if (b==false) {
2==2;
}
}
*/
//problem
Dummy aDummy = new Dummy();
goal(aDummy.testGuards _g);
eq(_g.start, 10);