Track Simplification Pass Names

Author: rcosta358

liquidjava-verifier/src/main/java/liquidjava/rj_language/opt/VCSimplification.java

@@ -50,6 +50,6 @@ public static VCSimplificationResult simplifyOnce(VCSimplificationResult implica
         VCImplication simplified = pass.apply(implication.getImplication());
         if (implication.getImplication().equals(simplified))
             return implication;
-        return new VCSimplificationResult(simplified, implication);
+        return new VCSimplificationResult(simplified, implication, pass.getName());
     }
 }

liquidjava-verifier/src/main/java/liquidjava/rj_language/opt/VCSimplificationPass.java

@@ -7,4 +7,10 @@
  */
 public interface VCSimplificationPass {
     VCImplication apply(VCImplication implication);
+
+    default String getName() {
+        String className = getClass().getSimpleName();
+        String name = className.startsWith("VC") ? className.substring(2) : className;
+        return name.replaceAll("(?<=[a-z0-9])(?=[A-Z])", " ");
+    }
 }

liquidjava-verifier/src/main/java/liquidjava/rj_language/opt/VCSimplificationResult.java

@@ -11,14 +11,18 @@ public final class VCSimplificationResult {
 
     private final VCImplication implication;
     private final VCSimplificationResult origin;
+    private final String simplification;
 
     public VCSimplificationResult(VCImplication implication) {
-        this(implication, null);
+        this.implication = Objects.requireNonNull(implication).clone();
+        this.origin = null;
+        this.simplification = null;
     }
 
-    public VCSimplificationResult(VCImplication implication, VCSimplificationResult origin) {
+    public VCSimplificationResult(VCImplication implication, VCSimplificationResult origin, String simplification) {
         this.implication = Objects.requireNonNull(implication).clone();
-        this.origin = origin;
+        this.origin = Objects.requireNonNull(origin);
+        this.simplification = Objects.requireNonNull(simplification);
     }
 
     /**
@@ -35,6 +39,13 @@ public VCSimplificationResult getOrigin() {
         return origin;
     }
 
+    /**
+     * Returns the name of the simplification pass that produced this result or null for the original VC chain
+     */
+    public String getSimplification() {
+        return simplification;
+    }
+
     @Override
     public String toString() {
         if (origin == null)