5 files changed, 41 insertions, 4 deletions
diff --git a/instr-to-kodkod/Makefile b/instr-to-kodkod/Makefile
index 0f51838..dd80198 100644
--- a/instr-to-kodkod/Makefile
+++ b/instr-to-kodkod/Makefile
@@ -19,6 +19,7 @@ REQUIRED_JARS = kodkod.jar org.sat4j.core.jar antlr-4.7-complete.jar
 ## Makefile Magic ##############################################################
 INPUT_FILES = $(MODEL_FILES) $(LEVEL_DIR) $(PROPERTY_FILE)
 SOURCES = $(wildcard src/*.java parser/*.java)
+GRAMMARS = $(wildcard parser/*.g4)
 CLASSES = $(SOURCES:.java=.class)
 
 ## Makefile Rules ##############################################################
@@ -39,5 +40,5 @@ run: parser/PropertyParser.java $(CLASSES) $(REQUIRED_JARS)
 	echo "Attempting to download missing jar '$@'"
 	$(DOWNLOADER) "$(JAR_SOURCE)/$@"
 
-parser/PropertyParser.java: antlr-4.7-complete.jar
+parser/PropertyParser.java: antlr-4.7-complete.jar $(GRAMMAR)
 	$(MAKE) -C parser
diff --git a/instr-to-kodkod/parser/PropertyParser.g4 b/instr-to-kodkod/parser/PropertyParser.g4
index 5e1ed11..0bcb6a9 100644
--- a/instr-to-kodkod/parser/PropertyParser.g4
+++ b/instr-to-kodkod/parser/PropertyParser.g4
@@ -132,7 +132,14 @@ sl_predicate
 
    {
       /* TODO */
-      $result = null;
+      $result =
+         Expression.product
+         (
+            ($id_list.list)
+         ).in
+         (
+            Main.get_model().get_predicate_as_relation(($ID.text))
+         );
    }
 ;
 
@@ -357,7 +364,18 @@ bl_predicate [Variable current_node]
 
    {
       /* TODO */
-      $result = null;
+      $result =
+         current_node.product
+         (
+            Expression.product
+            (
+               ($id_list.list)
+            )
+         ).in
+         (
+            Main.get_model().get_predicate_as_relation(($ID.text))
+         );
+
    }
 ;
 
diff --git a/instr-to-kodkod/src/Main.java b/instr-to-kodkod/src/Main.java
index 0b1d2e4..0719679 100644
--- a/instr-to-kodkod/src/Main.java
+++ b/instr-to-kodkod/src/Main.java
@@ -31,6 +31,8 @@ public class Main
       {
          try
          {
+            System.out.println("Loading level file \"" + lvl + "\"...");
+
             VHDLLevel.add_to_model(MODEL, lvl);
          }
          catch (final Exception e)
@@ -59,6 +61,13 @@ public class Main
 
       try
       {
+         System.out.println
+         (
+            "Loading property file \""
+            + PARAMETERS.get_property_file()
+            + "\"..."
+         );
+
          return pro.generate_formula();
       }
       catch (final IOException e)
@@ -81,6 +90,8 @@ public class Main
       {
          try
          {
+            System.out.println("Loading model file \"" + mod + "\"...");
+
             MODEL.parse_file(mod);
          }
          catch (final Exception e)
diff --git a/instr-to-kodkod/src/VHDLPredicate.java b/instr-to-kodkod/src/VHDLPredicate.java
index 210dd7e..3605e76 100644
--- a/instr-to-kodkod/src/VHDLPredicate.java
+++ b/instr-to-kodkod/src/VHDLPredicate.java
@@ -58,6 +58,8 @@ public class VHDLPredicate
          }
 
          is_used = true;
+
+         System.out.println("Enabling predicate: " + name);
       }
 
       return as_relation;
diff --git a/instr-to-kodkod/src/VHDLType.java b/instr-to-kodkod/src/VHDLType.java
index 73cd9cf..58b0d1e 100644
--- a/instr-to-kodkod/src/VHDLType.java
+++ b/instr-to-kodkod/src/VHDLType.java
@@ -35,7 +35,12 @@ public class VHDLType
 
    public void flag_as_used ()
    {
-      is_used = true;
+      if (!is_used)
+      {
+         System.out.println("Enabling type: " + name);
+
+         is_used = true;
+      }
    }
 
    public boolean is_used ()