cannot_solve_list tracking what we can and can't solve

4 files changed, 22 insertions, 0 deletions

diff --git a/cache.md b/cache.md
index f96c5bc..7fb7f96 100644
--- a/cache.md
+++ b/cache.md
@@ -109,4 +109,9 @@
 (('(λa b. a a b)', '(λa b c. a c)'), ('(λx y. x)', '(λx y. y)')): ['(λb. (λe f. f))', '(λa b. b)', '(λc d. c)']
 (('(λa b c. b a)', '(λa b c. b b)'), ('(λx y. x)', '(λx y. y)')): ['(λp. p (λe f. f) (λc d. c))', '(λa. a)', '(λb a c c. (λc d. c))', '(λe f. f)']
 (('(λa b. a (b b b))', '(λa b c. a (b c c))'), ('(λx y. x)', '(λx y. y)')): ['(λc d. c)', '(λa. (λc d. c))', '(λa b. b)', '(λa b. a a a)', '(λa b c. c b c c)']
+(('(λa b c. b a)', '(λa b. b a b)'), ('(λx y. x)', '(λx y. y)')): ['(λc d. c)', '(λa b. a a b)', '(λa b. b)', '(λa b. b)']
+(('(λa b. b b b)', '(λa b c. b a)'), ('(λx y. x)', '(λx y. y)')): ['(λa b. a)', '(λa b. a)', '(λa b. b)', '(λe f. f)', '(λb. (λe f. f))', '(λa. a)', '(λa b. a)']
+(('(λa b c. a a (b b a))', '(λa b. a a (b a))'), ('(λx y. x)', '(λx y. y)')): ['(λe f. f)', '(λa b. a)', '(λa. a)']
+(('(λa b. a a (b a b))', '(λa b c. a a (b c))'), ('(λx y. x)', '(λx y. y)')): ['(λb. (λe f. f))', '(λa b c. c b b c)', '(λa. (λc d. c))', '(λa b. b)']
+(('(λa b. a (b a b) a)', '(λa b. a (λc. c c a) a)'), ('(λx y. x)', '(λx y. y)')): ['(λp. p (λe f. f) (λc d. c))', '(λa b c. a c c c)', '(λa b. b)']
 ```
\ No newline at end of file
diff --git a/cache.pickle b/cache.pickle
index 48541bc..5ec1307 100644
--- a/cache.pickle
+++ b/cache.pickle
Binary files differdiff --git a/cannot_solve.md b/cannot_solve.md
index 73ccfb9..cd6328c 100644
--- a/cannot_solve.md
+++ b/cannot_solve.md
@@ -21,3 +21,7 @@
 - `(λa b. a λc. c b b) | (λa b. a λc. c b)`
 - `(λa b. a λc. c c a) | (λa b. a λc. c c b)`
 - `(λa b. a λc. c c b) | (λa b. a (b b))`
+- `(λa b. a (λc. b a a) a) | (λa b. a (λc. b c) a)`
+- `(λa b. a (λc. b (a b) a) a) | (λa b. a (λc. b (a a) a) a)`
+- `(λa b. a λc. b c) | (λa b. a λc. b a a)`
+- `(λa b. a (a b b) a) | (λa b. a (λc. b c b) a)`
diff --git a/solve.py b/solve.py
index f3ec8e0..6ec7ff3 100644
--- a/solve.py
+++ b/solve.py
@@ -16,6 +16,9 @@ alpha = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
 #with open('cache.pickle', 'wb') as handle:
 #    pickle.dump(cache, handle, protocol=pickle.HIGHEST_PROTOCOL)
 
+with open('cannot_solve.pickle', 'rb') as handle:
+    cannot_solve_list = pickle.load(handle)
+
 with open('cache.pickle', 'rb') as handle:
     cache = pickle.load(handle)
 
@@ -611,6 +614,9 @@ while True:
         t = "(" + p.readline().decode().strip() + ")"
         print(f"{t=}")
 
+        if (s, t) in cannot_solve_list:
+            raise ValueError('We know that we can not solve this, as it is in the cannot_solve_list')
+
         p.readuntil(b"beta-reduces to ")
         goal_s = p.readline().decode().strip() 
         print(f"{goal_s=}")
@@ -654,10 +660,17 @@ while True:
     except:
         print("SOMETHING WENT HORRIBLY WRONG!")
 
+        # handle saving the "cannot_solve" items
         print(f"CANNOT SOLVE {s=} {t=}")
+
         cannot_solve = open("./cannot_solve.md", "a")
         cannot_solve.write(f"- `{s} | {t}`\n")
+        cannot_solve_list.append((s, t))
+
+        with open('cannot_solve.pickle', 'wb') as handle:
+            pickle.dump(cannot_solve_list, handle, protocol=pickle.HIGHEST_PROTOCOL)
 
+        # handle saving the cached items
         print(f"level {level}, cache hits: {cache_hits}")
         try:
             del cache[last_added_to_cache]