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improve decision for EQ 

git-svn-id: https://wala.svn.sourceforge.net/svnroot/wala/trunk@1999 f5eafffb-2e1d-0410-98e4-8ec43c5233c4
This commit is contained in:
sjfink 2007-11-12 17:18:29 +00:00
parent 1c4cb0ec62
commit 5e1f673e83
1 changed files with 6 additions and 8 deletions
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14
com.ibm.wala.core/src/com/ibm/wala/logic/AdHocSemiDecisionProcedure.java
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@ -67,7 +67,8 @@ public class AdHocSemiDecisionProcedure extends AbstractSemiDecisionProcedure {
}
/**
* Primitive logic to determine if axiom implies f. This CANNOT invoke tautology or contradiction recursively.
* Primitive logic to determine if axiom implies f. This CANNOT invoke
* tautology or contradiction recursively.
*/
protected boolean atomicImplies(IFormula axiom, IFormula f) {
if (AdHocSemiDecisionProcedure.normalize(axiom).equals(AdHocSemiDecisionProcedure.normalize(f))) {
@ -209,10 +210,8 @@ public class AdHocSemiDecisionProcedure extends AbstractSemiDecisionProcedure {
if (r.getRelation().equals(BinaryRelation.EQUALS)) {
ITerm lhs = r.getTerms().get(0);
ITerm rhs = r.getTerms().get(1);
if (lhs.getKind().equals(ITerm.Kind.CONSTANT) && rhs.getKind().equals(ITerm.Kind.CONSTANT)) {
if (lhs.equals(rhs)) {
return true;
}
if (lhs.equals(rhs)) {
return true;
}
} else if (r.getRelation().equals(BinaryRelation.NE)) {
ITerm lhs = r.getTerms().get(0);
@ -247,7 +246,7 @@ public class AdHocSemiDecisionProcedure extends AbstractSemiDecisionProcedure {
}
return false;
}
/**
* do we know a <= b ?
*
@ -282,6 +281,5 @@ public class AdHocSemiDecisionProcedure extends AbstractSemiDecisionProcedure {
return false;
}
}