Add test for synthetic YAML witness invariant locations (PR #758)

tests/regression/56-witness/dune

@@ -1,6 +1,2 @@
-(env
- (_
-  (binaries ../../util/yamlWitnessStrip.exe)))
-
 (cram
- (deps (glob_files *.c) %{bin:yamlWitnessStrip}))
+ (deps (glob_files *.c)))

tests/regression/dune

@@ -1,3 +1,10 @@
+(env
+ (_
+  (binaries ../util/yamlWitnessStrip.exe)))
+
 (cram
  (applies_to :whole_subtree)
- (deps %{bin:goblint} (package goblint))) ; need entire package for includes/
+ (deps
+   %{bin:goblint}
+   (package goblint) ; need entire package for includes/
+   %{bin:yamlWitnessStrip}))

tests/regression/pr-758.t/pr-758.c

@@ -0,0 +1,22 @@
+// Code from https://github.com/goblint/cil/pull/98
+
+int main() {
+  // for loop
+  int x = 42;
+  for (x = 0; x < 10; x++) { // there shouldn't be invariants x <= 9, x <= 10 and 0 <= x before this line
+    // ...
+  }
+
+  // expression with side effect
+  int i, k;
+  i = k = 0; // there shouldn't be invariant k == 0 before this line
+
+  // compound initializers
+  struct kala {
+    int kaal;
+    int hind;
+  };
+
+  struct kala a = {2, 3}; // there shouldn't be invariant a.kaal == 2 before this line
+  return 0;
+}

tests/regression/pr-758.t/run.t

@@ -0,0 +1,119 @@
+  $ goblint --enable ana.int.interval --enable witness.yaml.enabled --set witness.yaml.entry-types '["loop_invariant", "location_invariant"]' pr-758.c
+  [Info][Deadcode] Logical lines of code (LLoC) summary:
+    live: 6
+    dead: 0
+    total lines: 6
+  [Info][Witness] witness generation summary:
+    total generation entries: 10
+
+  $ yamlWitnessStrip < witness.yml
+  - entry_type: loop_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 6
+      column: 2
+      function: main
+    loop_invariant:
+      string: (0 <= x && (x <= 9 || x <= 10))
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 21
+      column: 2
+      function: main
+    location_invariant:
+      string: x == 10
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 21
+      column: 2
+      function: main
+    location_invariant:
+      string: k == 0
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 21
+      column: 2
+      function: main
+    location_invariant:
+      string: i == 0
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 21
+      column: 2
+      function: main
+    location_invariant:
+      string: a.kaal == 2
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 21
+      column: 2
+      function: main
+    location_invariant:
+      string: a.hind == 3
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 20
+      column: 2
+      function: main
+    location_invariant:
+      string: x == 10
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 20
+      column: 2
+      function: main
+    location_invariant:
+      string: k == 0
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 20
+      column: 2
+      function: main
+    location_invariant:
+      string: i == 0
+      type: assertion
+      format: C
+  - entry_type: location_invariant
+    location:
+      file_name: pr-758.c
+      file_hash: $FILE_HASH
+      line: 12
+      column: 2
+      function: main
+    location_invariant:
+      string: x == 10
+      type: assertion
+      format: C