private void ComputeTransitionRelationExpr()
{
CalculatePathExpression();
AddBoundVariablesForRemainingVars();
ReplacePreOrPostStateVars();
TransitionRelationExpr = Expr.And(pathExprs);
if (trc.IsJoint)
{
ComputeWitnessedTransitionRelationExprs();
if (witnessedTransitionRelations.Count > 0)
{
TransitionRelationExpr = Expr.Or(witnessedTransitionRelations);
}
}
if (existsVarMap.Any())
{
Trigger trigger = null;
if (trc.IsJoint)
{
var exprs = new List <Expr>();
foreach (var v in existsVarMap.Keys)
{
var orig = copyToOriginalVar[v];
if (v == varCopies[orig].First() && trc.triggers.ContainsKey(orig))
{
var f = trc.triggers[orig];
exprs.Add(ExprHelper.FunctionCall(f, Expr.Ident(existsVarMap[v])));
}
}
if (exprs.Count == existsVarMap.Count)
{
trigger = new Trigger(Token.NoToken, true, exprs);
}
}
TransitionRelationExpr = ExprHelper.ExistsExpr(
existsVarMap.Values.ToList <Variable>(), trigger, TransitionRelationExpr);
}
}
