tests/test.sh exit code (0 → resolved); the classification below is post-hoc and cannot change it.<tmp>/workspace
EISDIR: illegal operation on a directory, read '<tmp>/workspace'
ls -la <tmp>/workspace/ 2>/dev/null || echo "Path not accessible"
total 40 drwxr-xr-x 7 jaykumar staff 224 17 Jun 15:36 . drwx------ 4 jaykumar staff 128 17 Jun 15:36 .. drwxr-xr-x 3 jaykumar staff 96 17 Jun 14:36 data drwxr-xr-x 3 jaykumar staff 96 17 Jun 14:36 environment -rw-r--r-- 1 jaykumar staff 9746 17 Jun 14:36 instruction.md -rw-r--r-- 1 jaykumar staff 1049 17 Jun 14:36 main.py -rw-r--r-- 1 jaykumar staff 323 17 Jun 14:36 task.toml
<tmp>/workspace/data/operations.json
1 {
2 "capacity": 9,
3 "protected_capacity": 4,
4 "default_ttl": 8,
5 "miss": -1,
6 "reset_interval": 7,
7 "operations": [
8 ["put", 1, 100, 2],
9 ["put", 2, 200, 2],
10 ["put", 3, 300, 1],
11 ["get", 1],
12 ["get", 2],
13 ["get", 1],
14 ["put", 4, 400, 2],
15 ["get", 3],
16 ["get", 1],
17 ["put", 5, 500, 2],
18 ["get", 2],
19 ["get", 99],
20 ["put", 6, 600, 3],
21 ["get", 4],
22 ["put", 7, 700, 4],
23 ["get", 1],
24 ["get", 2],
25 ["put", 8, 800, 1],
26 ["get", 3],
27 ["put", 1, 150, 2],
28 ["get", 8],
29 ["get", 77]
30 ]
31 }
32<tmp>/workspace/main.py
1 # Read data/operations.json and write output/result.json.
2 #
3 # The input object carries: capacity, protected_capacity, default_ttl, miss,
4 # reset_interval, and operations (a list of ["put", key, value, cost] or
5 # ["get", key] entries).
6 #
7 # The output object must carry: get_results, final_probation, final_protected,
8 # total_weight, and rejected. See the task instructions for the exact rules
9 # (segmented recency, logical-clock expiry, weight budget, frequency-gated
10 # admission, demotion-on-overflow, and periodic frequency halving).
11 #
12 # TODO: implement the cache. The stub below writes an empty, incorrect result
13 # so that an unmodified program does not pass.
14 import json
15 import os
16
17 with open("data/operations.json") as f:
18 data = json.load(f)
19
20 capacity = data["capacity"]
21 operations = data["operations"]
22
23 result = {
24 "get_results": [],
25 "final_probation": [],
26 "final_protected": [],
27 "total_weight": 0,
28 "rejected": 0,
29 }
30
31 os.makedirs("output", exist_ok=True)
32 with open("output/result.json", "w") as f:
33 json.dump(result, f)
34import json
import os
with open("data/operations.json") as f:
data = json.load(f)
capacity = data["capacity"]
protected_capacity = data["protected_capacity"]
default_ttl = data["default_ttl"]
miss = data["miss"]
reset_interval = data["reset_interval"]
operations = data["operations"]
# Frequency estimates for all keys ever seen
frequencies = {}
# Probation segment: list of (key, value, cost, expiry)
probation = []
# Protected segment: list of (key, value, cost, expiry)
protected = []
get_results = []
rejected_count = 0
clock = 0
def get_frequency(key):
return frequencies.get(key, 0)
def set_frequency(key, freq):
frequencies[key] = freq
def increment_frequency(key):
set_frequency(key, get_frequency(key) + 1)
def halve_all_frequencies():
for key in frequencies:
frequencies[key] //= 2
def sweep_expired(current_clock):
"""Remove expired entries from both segments."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if e > current_clock]
protected = [(k, v, c, e) for k, v, c, e in protected if e > current_clock]
def get_probation_weight():
return sum(c for _, _, c, _ in probation)
def get_protected_weight():
return sum(c for _, _, c, _ in protected)
def find_in_probation(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(probation):
if k == key:
return i, (k, v, c, e)
return None, None
def find_in_protected(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(protected):
if k == key:
return i, (k, v, c, e)
return None, None
def promote_to_protected(key, value, cost, expiry):
"""Move entry from probation to protected as most recently used."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if k != key]
protected.append((key, value, cost, expiry))
# Handle demotion if protected segment exceeds capacity
while get_protected_weight() > protected_capacity:
# Take least recently used from protected (first element)
demoted = protected.pop(0)
demoted_key, demoted_value, demoted_cost, demoted_expiry = demoted
# Insert as most recently used in probation
probation.append((demoted_key, demoted_value, demoted_cost, demoted_expiry))
def evict_entries(amount_needed):
"""Evict entries until at least amount_needed weight is freed."""
global probation, protected
freed = 0
# Evict from probation first (least recently used first)
while freed < amount_needed and probation:
key, value, cost, expiry = probation.pop(0)
freed += cost
# Then evict from protected if still needed
while freed < amount_needed and protected:
key, value, cost, expiry = protected.pop(0)
freed += cost
def try_admit_new_entry(key, value, cost, current_clock):
"""Try to admit a new entry. Returns (admitted, new_entry)."""
global probation, protected, rejected_count
# Check if entry is too big for cache
if cost > capacity:
return False
total_weight = get_probation_weight() + get_protected_weight()
# If it fits without eviction, admit it
if total_weight + cost <= capacity:
return True
# Calculate how much weight needs to be freed
needed = total_weight + cost - capacity
# Collect candidates for eviction in order: probation (LRU first), then protected (LRU first)
candidates = []
for i, entry in enumerate(probation):
candidates.append(('probation', i, entry))
for i, entry in enumerate(protected):
candidates.append(('protected', i, entry))
# Walk candidates and check if new key can beat them all
freed = 0
entries_to_evict = []
new_key_freq = get_frequency(key)
for segment, idx, (candidate_key, candidate_value, candidate_cost, candidate_expiry) in candidates:
if freed >= needed:
break
candidate_freq = get_frequency(candidate_key)
if new_key_freq <= candidate_freq:
# New key loses
rejected_count += 1
return False
entries_to_evict.append((segment, idx, candidate_cost))
freed += candidate_cost
# New key wins! Evict the entries
# We need to evict in reverse order of index to avoid index shifting issues
entries_to_evict.sort(key=lambda x: (x[0] == 'protected', -x[1]))
for segment, idx, cost in entries_to_evict:
if segment == 'probation':
probation.pop(idx)
else:
protected.pop(idx)
return True
for op_idx, op in enumerate(operations):
# Advance clock
clock += 1
# Sweep expired entries
sweep_expired(clock)
# Get the key from the operation
key = op[1]
# Increment frequency for this key
increment_frequency(key)
# Apply operation
if op[0] == "get":
# Try to find key
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
# Found in probation
_, value, cost, _ = prob_entry
# Refresh expiry and move to MRU
probation.pop(prob_idx)
new_expiry = clock + default_ttl
probation.append((key, value, cost, new_expiry))
# Promote to protected
promote_to_protected(key, value, cost, new_expiry)
get_results.append(value)
elif prot_idx is not None:
# Found in protected
_, value, cost, _ = prot_entry
# Refresh expiry and move to MRU
protected.pop(prot_idx)
new_expiry = clock + default_ttl
protected.append((key, value, cost, new_expiry))
get_results.append(value)
else:
# Not found
get_results.append(miss)
elif op[0] == "put":
value = op[2]
cost = op[
… (+2631 chars truncated)import json
import os
with open("data/operations.json") as f:
data = json.load(f)
capacity = data["capacity"]
protected_capacity = data["protected_capacity"]
default_ttl = data["default_ttl"]
miss = data["miss"]
reset_interval = data["reset_interval"]
operations = data["operations"]
# Frequency estimates for all keys ever seen
frequencies = {}
# Probation segment: list of (key, value, cost, expiry)
probation = []
# Protected segment: list of (key, value, cost, expiry)
protected = []
get_results = []
rejected_count = 0
clock = 0
def get_frequency(key):
return frequencies.get(key, 0)
def set_frequency(key, freq):
frequencies[key] = freq
def increment_frequency(key):
set_frequency(key, get_frequency(key) + 1)
def halve_all_frequencies():
for key in frequencies:
frequencies[key] //= 2
def sweep_expired(current_clock):
"""Remove expired entries from both segments."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if e > current_clock]
protected = [(k, v, c, e) for k, v, c, e in protected if e > current_clock]
def get_probation_weight():
return sum(c for _, _, c, _ in probation)
def get_protected_weight():
return sum(c for _, _, c, _ in protected)
def find_in_probation(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(probation):
if k == key:
return i, (k, v, c, e)
return None, None
def find_in_protected(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(protected):
if k == key:
return i, (k, v, c, e)
return None, None
def promote_to_protected(key, value, cost, expiry):
"""Move entry from probation to protected as most recently used."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if k != key]
protected.append((key, value, cost, expiry))
# Handle demotion if protected segment exceeds capacity
while get_protected_weight() > protected_capacity:
demoted = protected.pop(0)
demoted_key, demoted_value, demoted_cost, demoted_expiry = demoted
probation.append((demoted_key, demoted_value, demoted_cost, demoted_expiry))
def evict_to_fit(new_cost, skip_key=None):
"""Evict entries until cache has room for new_cost. Never evict skip_key."""
global probation, protected
while get_probation_weight() + get_protected_weight() + new_cost > capacity:
evicted = False
# Try to evict from probation first
for i, (k, v, c, e) in enumerate(probation):
if k != skip_key:
probation.pop(i)
evicted = True
break
if not evicted:
# Try to evict from protected
for i, (k, v, c, e) in enumerate(protected):
if k != skip_key:
protected.pop(i)
evicted = True
break
if not evicted:
break
def try_admit_new_entry(key, value, cost, current_clock):
"""Try to admit a new entry. Returns True if admitted, False if rejected."""
global probation, protected, rejected_count
# Check if entry is too big for cache
if cost > capacity:
return False
total_weight = get_probation_weight() + get_protected_weight()
# If it fits without eviction, admit it
if total_weight + cost <= capacity:
return True
# Calculate how much weight needs to be freed
needed = total_weight + cost - capacity
# Collect candidates for eviction in order: probation (LRU first), then protected (LRU first)
candidates = []
for i, entry in enumerate(probation):
candidates.append(('probation', i, entry))
for i, entry in enumerate(protected):
candidates.append(('protected', i, entry))
# Walk candidates and check if new key can beat them all
freed = 0
entries_to_evict = []
new_key_freq = get_frequency(key)
for segment, idx, (candidate_key, candidate_value, candidate_cost, candidate_expiry) in candidates:
if freed >= needed:
break
candidate_freq = get_frequency(candidate_key)
if new_key_freq <= candidate_freq:
# New key loses the contest
rejected_count += 1
return False
entries_to_evict.append((segment, idx, candidate_cost))
freed += candidate_cost
# New key wins! Evict the entries
# Sort by segment and then by index in reverse to avoid index shifting
entries_to_evict.sort(key=lambda x: (x[0] == 'probation', -x[1]))
for segment, idx, cost in entries_to_evict:
if segment == 'probation':
probation.pop(idx)
else:
protected.pop(idx)
return True
for op_idx, op in enumerate(operations):
# Advance clock
clock += 1
# Sweep expired entries
sweep_expired(clock)
# Get the key from the operation
key = op[1]
# Increment frequency for this key
increment_frequency(key)
# Apply operation
if op[0] == "get":
# Try to find key
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
# Found in probation
_, value, cost, _ = prob_entry
# Refresh expiry and move to MRU
probation.pop(prob_idx)
new_expiry = clock + default_ttl
probation.append((key, value, cost, new_expiry))
# Promote to protected
promote_to_protected(key, value, cost, new_expiry)
get_results.append(value)
elif prot_idx is not None:
# Found in protected
_, value, cost, _ = prot_entry
# Refresh expiry and move to MRU
protected.pop(prot_idx)
new_expiry = clock + default_ttl
protected.append((key, value, cost, new_expiry))
… (+1728 chars truncated)python main.py
Exit code 127 (eval):1: command not found: python
python3 main.py
(Bash completed with no output)
<tmp>/workspace/output/result.json
1 {"get_results": [100, 200, 100, 300, 100, 200, -1, 400, 100, 200, -1, 800, -1], "final_probation": [[2, 200]], "final_protected": [[1, 150], [8, 800]], "total_weight": 5, "rejected": 2}import json
import os
with open("data/operations.json") as f:
data = json.load(f)
capacity = data["capacity"]
protected_capacity = data["protected_capacity"]
default_ttl = data["default_ttl"]
miss = data["miss"]
reset_interval = data["reset_interval"]
operations = data["operations"]
# Frequency estimates for all keys ever seen
frequencies = {}
# Probation segment: list of (key, value, cost, expiry)
probation = []
# Protected segment: list of (key, value, cost, expiry)
protected = []
get_results = []
rejected_count = 0
clock = 0
def get_frequency(key):
return frequencies.get(key, 0)
def set_frequency(key, freq):
frequencies[key] = freq
def increment_frequency(key):
set_frequency(key, get_frequency(key) + 1)
def halve_all_frequencies():
for key in frequencies:
frequencies[key] //= 2
def sweep_expired(current_clock):
"""Remove expired entries from both segments."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if e > current_clock]
protected = [(k, v, c, e) for k, v, c, e in protected if e > current_clock]
def get_probation_weight():
return sum(c for _, _, c, _ in probation)
def get_protected_weight():
return sum(c for _, _, c, _ in protected)
def find_in_probation(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(probation):
if k == key:
return i, (k, v, c, e)
return None, None
def find_in_protected(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(protected):
if k == key:
return i, (k, v, c, e)
return None, None
def demote_from_protected():
"""Move least recently used entry from protected to probation as MRU."""
global probation, protected
if protected:
demoted = protected.pop(0)
probation.append(demoted)
def promote_to_protected(key, value, cost, expiry):
"""Move entry from probation to protected as most recently used."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if k != key]
protected.append((key, value, cost, expiry))
# Handle demotion if protected segment exceeds capacity
while get_protected_weight() > protected_capacity:
demote_from_protected()
def evict_entries_until_fit(space_needed):
"""Evict entries until there's at least space_needed weight available."""
global probation, protected
while get_probation_weight() + get_protected_weight() + space_needed > capacity:
evicted = False
# Try to evict from probation first (least recently used)
if probation:
probation.pop(0)
evicted = True
if not evicted and protected:
# Try to evict from protected (least recently used)
protected.pop(0)
evicted = True
if not evicted:
break
def try_admit_new_entry(key, value, cost, current_clock):
"""Try to admit a new entry. Returns True if admitted, False if rejected."""
global probation, protected, rejected_count
# Check if entry is too big for cache
if cost > capacity:
return False
total_weight = get_probation_weight() + get_protected_weight()
# If it fits without eviction, admit it
if total_weight + cost <= capacity:
return True
# Calculate how much weight needs to be freed
needed = total_weight + cost - capacity
# Collect candidates for eviction in order: probation (LRU first), then protected (LRU first)
candidates = []
for i, entry in enumerate(probation):
candidates.append(('probation', i, entry))
for i, entry in enumerate(protected):
candidates.append(('protected', i, entry))
# Walk candidates and check if new key can beat them all
freed = 0
entries_to_evict = []
new_key_freq = get_frequency(key)
for segment, idx, (candidate_key, candidate_value, candidate_cost, candidate_expiry) in candidates:
if freed >= needed:
break
candidate_freq = get_frequency(candidate_key)
if new_key_freq <= candidate_freq:
# New key loses the contest
rejected_count += 1
return False
entries_to_evict.append((segment, idx, candidate_cost))
freed += candidate_cost
# New key wins! Evict the entries
# Sort by segment first (probation before protected), then by index in reverse to avoid index shifting
entries_to_evict.sort(key=lambda x: (x[0] == 'protected', -x[1]))
for segment, idx, cost in entries_to_evict:
if segment == 'probation':
probation.pop(idx)
else:
protected.pop(idx)
return True
for op_idx, op in enumerate(operations):
# Advance clock
clock += 1
# Sweep expired entries
sweep_expired(clock)
# Get the key from the operation
key = op[1]
# Increment frequency for this key
increment_frequency(key)
# Apply operation
if op[0] == "get":
# Try to find key
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
# Found in probation
_, value, cost, _ = prob_entry
# Refresh expiry and move to MRU
probation.pop(prob_idx)
new_expiry = clock + default_ttl
probation.append((key, value, cost, new_expiry))
# Promote to protected
promote_to_protected(key, value, cost, new_expiry)
get_results.append(value)
elif prot_idx is not None:
# Found in protected
_, value, cost, _ = prot_entry
# Refresh expiry and move to MRU
protected.pop(prot_idx)
new_expiry = clock + default_ttl
protected.append((key, value, cost, new_expiry))
get_results.append(value)
else:
# Not foun
… (+4240 chars truncated)python3 main.py && cat output/result.json
{"get_results": [100, 200, 100, 300, 100, 200, -1, 400, 100, 200, -1, 800, -1], "final_probation": [[2, 200]], "final_protected": [[1, 150], [8, 800]], "total_weight": 5, "rejected": 2}import json
import os
with open("data/operations.json") as f:
data = json.load(f)
capacity = data["capacity"]
protected_capacity = data["protected_capacity"]
default_ttl = data["default_ttl"]
miss = data["miss"]
reset_interval = data["reset_interval"]
operations = data["operations"]
# Frequency estimates for all keys ever seen
frequencies = {}
# Probation segment: list of (key, value, cost, expiry)
probation = []
# Protected segment: list of (key, value, cost, expiry)
protected = []
get_results = []
rejected_count = 0
clock = 0
def get_frequency(key):
return frequencies.get(key, 0)
def set_frequency(key, freq):
frequencies[key] = freq
def increment_frequency(key):
set_frequency(key, get_frequency(key) + 1)
def halve_all_frequencies():
for key in frequencies:
frequencies[key] //= 2
def sweep_expired(current_clock):
"""Remove expired entries from both segments."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if e > current_clock]
protected = [(k, v, c, e) for k, v, c, e in protected if e > current_clock]
def get_probation_weight():
return sum(c for _, _, c, _ in probation)
def get_protected_weight():
return sum(c for _, _, c, _ in protected)
def find_in_probation(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(probation):
if k == key:
return i, (k, v, c, e)
return None, None
def find_in_protected(key):
"""Returns (index, entry) or (None, None)."""
for i, (k, v, c, e) in enumerate(protected):
if k == key:
return i, (k, v, c, e)
return None, None
def demote_from_protected():
"""Move least recently used entry from protected to probation as MRU."""
global probation, protected
if protected:
demoted = protected.pop(0)
probation.append(demoted)
def promote_to_protected(key, value, cost, expiry):
"""Move entry from probation to protected as most recently used."""
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if k != key]
protected.append((key, value, cost, expiry))
# Handle demotion if protected segment exceeds capacity
while get_protected_weight() > protected_capacity:
demote_from_protected()
def evict_entries_for_update(updated_key):
"""Evict entries until cache fits. Never evict updated_key."""
global probation, protected
while get_probation_weight() + get_protected_weight() > capacity:
evicted = False
# Try to evict from probation first (least recently used), but not updated_key
for i, (k, v, c, e) in enumerate(probation):
if k != updated_key:
probation.pop(i)
evicted = True
break
if not evicted:
# Try to evict from protected (least recently used), but not updated_key
for i, (k, v, c, e) in enumerate(protected):
if k != updated_key:
protected.pop(i)
evicted = True
break
if not evicted:
break
def try_admit_new_entry(key, value, cost, current_clock):
"""Try to admit a new entry. Returns True if admitted, False if rejected."""
global probation, protected, rejected_count
# Check if entry is too big for cache
if cost > capacity:
return False
total_weight = get_probation_weight() + get_protected_weight()
# If it fits without eviction, admit it
if total_weight + cost <= capacity:
return True
# Calculate how much weight needs to be freed
needed = total_weight + cost - capacity
# Collect candidates for eviction in order: probation (LRU first), then protected (LRU first)
candidates = []
for i, entry in enumerate(probation):
candidates.append(('probation', i, entry))
for i, entry in enumerate(protected):
candidates.append(('protected', i, entry))
# Walk candidates and check if new key can beat them all
freed = 0
entries_to_evict = []
new_key_freq = get_frequency(key)
for segment, idx, (candidate_key, candidate_value, candidate_cost, candidate_expiry) in candidates:
if freed >= needed:
break
candidate_freq = get_frequency(candidate_key)
if new_key_freq <= candidate_freq:
# New key loses the contest
rejected_count += 1
return False
entries_to_evict.append((segment, idx, candidate_cost))
freed += candidate_cost
# New key wins! Evict the entries
# Sort by segment first (probation before protected), then by index in reverse to avoid index shifting
entries_to_evict.sort(key=lambda x: (x[0] == 'protected', -x[1]))
for segment, idx, cost in entries_to_evict:
if segment == 'probation':
probation.pop(idx)
else:
protected.pop(idx)
return True
for op_idx, op in enumerate(operations):
# Advance clock
clock += 1
# Sweep expired entries
sweep_expired(clock)
# Get the key from the operation
key = op[1]
# Increment frequency for this key
increment_frequency(key)
# Apply operation
if op[0] == "get":
# Try to find key
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
# Found in probation
_, value, cost, _ = prob_entry
# Refresh expiry and move to MRU
probation.pop(prob_idx)
new_expiry = clock + default_ttl
probation.append((key, value, cost, new_expiry))
# Promote to protected
promote_to_protected(key, value, cost, new_expiry)
get_results.append(value)
elif prot_idx is not None:
# Found in protected
_, value, cost, _ = prot_entry
# Refresh expiry a
… (+1874 chars truncated)python3 main.py && cat output/result.json
{"get_results": [100, 200, 100, 300, 100, 200, -1, 400, 100, 200, -1, 800, -1], "final_probation": [[2, 200]], "final_protected": [[1, 150], [8, 800]], "total_weight": 5, "rejected": 2}cat > /tmp/trace.py << 'EOF'
import json
with open("data/operations.json") as f:
data = json.load(f)
capacity = data["capacity"]
protected_capacity = data["protected_capacity"]
default_ttl = data["default_ttl"]
miss = data["miss"]
reset_interval = data["reset_interval"]
operations = data["operations"]
frequencies = {}
probation = []
protected = []
get_results = []
rejected_count = 0
clock = 0
def get_frequency(key):
return frequencies.get(key, 0)
def set_frequency(key, freq):
frequencies[key] = freq
def increment_frequency(key):
set_frequency(key, get_frequency(key) + 1)
def halve_all_frequencies():
for key in frequencies:
frequencies[key] //= 2
def sweep_expired(current_clock):
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if e > current_clock]
protected = [(k, v, c, e) for k, v, c, e in protected if e > current_clock]
def get_probation_weight():
return sum(c for _, _, c, _ in probation)
def get_protected_weight():
return sum(c for _, _, c, _ in protected)
def find_in_probation(key):
for i, (k, v, c, e) in enumerate(probation):
if k == key:
return i, (k, v, c, e)
return None, None
def find_in_protected(key):
for i, (k, v, c, e) in enumerate(protected):
if k == key:
return i, (k, v, c, e)
return None, None
def promote_to_protected(key, value, cost, expiry):
global probation, protected
probation = [(k, v, c, e) for k, v, c, e in probation if k != key]
protected.append((key, value, cost, expiry))
while get_protected_weight() > protected_capacity:
demoted = protected.pop(0)
probation.append(demoted)
def evict_entries_for_update(updated_key):
global probation, protected
while get_probation_weight() + get_protected_weight() > capacity:
evicted = False
for i, (k, v, c, e) in enumerate(probation):
if k != updated_key:
probation.pop(i)
evicted = True
break
if not evicted:
for i, (k, v, c, e) in enumerate(protected):
if k != updated_key:
protected.pop(i)
evicted = True
break
if not evicted:
break
def try_admit_new_entry(key, value, cost, current_clock):
global probation, protected, rejected_count
if cost > capacity:
return False
total_weight = get_probation_weight() + get_protected_weight()
if total_weight + cost <= capacity:
return True
needed = total_weight + cost - capacity
candidates = []
for i, entry in enumerate(probation):
candidates.append(('probation', i, entry))
for i, entry in enumerate(protected):
candidates.append(('protected', i, entry))
freed = 0
entries_to_evict = []
new_key_freq = get_frequency(key)
for segment, idx, (candidate_key, candidate_value, candidate_cost, candidate_expiry) in candidates:
if freed >= needed:
break
candidate_freq = get_frequency(candidate_key)
if new_key_freq <= candidate_freq:
rejected_count += 1
return False
entries_to_evict.append((segment, idx, candidate_cost))
freed += candidate_cost
entries_to_evict.sort(key=lambda x: (x[0] == 'protected', -x[1]))
for segment, idx, cost in entries_to_evict:
if segment == 'probation':
probation.pop(idx)
else:
protected.pop(idx)
return True
for op_idx, op in enumerate(operations):
clock += 1
sweep_expired(clock)
key = op[1]
increment_frequency(key)
print(f"Op {op_idx+1} (clock={clock}): {op}")
print(f" Frequencies: {frequencies}")
if op[0] == "get":
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
_, value, cost, _ = prob_entry
probation.pop(prob_idx)
new_expiry = clock + default_ttl
probation.append((key, value, cost, new_expiry))
promote_to_protected(key, value, cost, new_expiry)
get_results.append(value)
print(f" GET {key}: FOUND in probation, value={value}, promoted to protected")
elif prot_idx is not None:
_, value, cost, _ = prot_entry
protected.pop(prot_idx)
new_expiry = clock + default_ttl
protected.append((key, value, cost, new_expiry))
get_results.append(value)
print(f" GET {key}: FOUND in protected, value={value}")
else:
get_results.append(miss)
print(f" GET {key}: NOT FOUND, miss={miss}")
elif op[0] == "put":
value = op[2]
cost = op[3]
new_expiry = clock + default_ttl
prob_idx, prob_entry = find_in_probation(key)
prot_idx, prot_entry = find_in_protected(key)
if prob_idx is not None:
probation.pop(prob_idx)
probation.append((key, value, cost, new_expiry))
evict_entries_for_update(key)
print(f" PUT {key} UPDATE in probation, value={value}, cost={cost}")
elif prot_idx is not None:
protected.pop(prot_idx)
protected.append((key, value, cost, new_expiry))
evict_entries_for_update(key)
print(f" PUT {key} UPDATE in protected, value={value}, cost={cost}")
else:
if try_admit_new_entry(key, value, cost, clock):
probation.append((key, value, cost, new_expiry))
print(f" PUT {key} NEW in probation, value={value}, cost={cost}")
else:
print(f" PUT {key} REJECTED")
print(f" Probation: {[(k, v, c) for k, v, c, _ in probation]} (weight={get_probation_weight()})")
print(f" Protected: {[(k, v, c) for k, v, c, _ in protected]} (weight={get_protected_weight()})")
pri
… (+554 chars truncated)Op 1 (clock=1): ['put', 1, 100, 2]
Frequencies: {1: 1}
PUT 1 NEW in probation, value=100, cost=2
Probation: [(1, 100, 2)] (weight=2)
Protected: [] (weight=0)
Total weight: 2
Op 2 (clock=2): ['put', 2, 200, 2]
Frequencies: {1: 1, 2: 1}
PUT 2 NEW in probation, value=200, cost=2
Probation: [(1, 100, 2), (2, 200, 2)] (weight=4)
Protected: [] (weight=0)
Total weight: 4
Op 3 (clock=3): ['put', 3, 300, 1]
Frequencies: {1: 1, 2: 1, 3: 1}
PUT 3 NEW in probation, value=300, cost=1
Probation: [(1, 100, 2), (2, 200, 2), (3, 300, 1)] (weight=5)
Protected: [] (weight=0)
Total weight: 5
Op 4 (clock=4): ['get', 1]
Frequencies: {1: 2, 2: 1, 3: 1}
GET 1: FOUND in probation, value=100, promoted to protected
Probation: [(2, 200, 2), (3, 300, 1)] (weight=3)
Protected: [(1, 100, 2)] (weight=2)
Total weight: 5
Op 5 (clock=5): ['get', 2]
Frequencies: {1: 2, 2: 2, 3: 1}
GET 2: FOUND in probation, value=200, promoted to protected
Probation: [(3, 300, 1)] (weight=1)
Protected: [(1, 100, 2), (2, 200, 2)] (weight=4)
Total weight: 5
Op 6 (clock=6): ['get', 1]
Frequencies: {1: 3, 2: 2, 3: 1}
GET 1: FOUND in protected, value=100
Probation: [(3, 300, 1)] (weight=1)
Protected: [(2, 200, 2), (1, 100, 2)] (weight=4)
Total weight: 5
Op 7 (clock=7): ['put', 4, 400, 2]
Frequencies: {1: 3, 2: 2, 3: 1, 4: 1}
PUT 4 NEW in probation, value=400, cost=2
Probation: [(3, 300, 1), (4, 400, 2)] (weight=3)
Protected: [(2, 200, 2), (1, 100, 2)] (weight=4)
Total weight: 7
AGE frequencies at op 7
Op 8 (clock=8): ['get', 3]
Frequencies: {1: 1, 2: 1, 3: 1, 4: 0}
GET 3: FOUND in probation, value=300, promoted to protected
Probation: [(4, 400, 2), (2, 200, 2)] (weight=4)
Protected: [(1, 100, 2), (3, 300, 1)] (weight=3)
Total weight: 7
Op 9 (clock=9): ['get', 1]
Frequencies: {1: 2, 2: 1, 3: 1, 4: 0}
GET 1: FOUND in protected, value=100
Probation: [(4, 400, 2), (2, 200, 2)] (weight=4)
Protected: [(3, 300, 1), (1, 100, 2)] (weig
… (+3705 chars truncated)============================= test session starts ============================== platform darwin -- Python 3.12.4, pytest-8.4.1, pluggy-1.6.0 -- /Library/Frameworks/Python.framework/Versions/3.12/bin/python3 cachedir: .pytest_cache rootdir: <tmp>/workspace plugins: anyio-4.12.1, respx-0.22.0, mock-3.15.1, asyncio-0.21.1 asyncio: mode=Mode.STRICT collecting ... collected 13 items tests/test_outputs.py::test_output_exists PASSED [ 7%] tests/test_outputs.py::test_shipped_input_correct PASSED [ 15%] tests/test_outputs.py::test_shipped_exercises_the_gate PASSED [ 23%] tests/test_outputs.py::test_shipped_invariants PASSED [ 30%] tests/test_outputs.py::test_hidden_inputs[3] PASSED [ 38%] tests/test_outputs.py::test_hidden_inputs[4] PASSED [ 46%] tests/test_outputs.py::test_hidden_inputs[8] PASSED [ 53%] tests/test_outputs.py::test_hidden_inputs[11] PASSED [ 61%] tests/test_outputs.py::test_hidden_inputs[13] PASSED [ 69%] tests/test_outputs.py::test_hidden_inputs[16] PASSED [ 76%] tests/test_outputs.py::test_hidden_inputs[33] PASSED [ 84%] tests/test_outputs.py::test_hidden_inputs[47] PASSED [ 92%] tests/test_outputs.py::test_hidden_inputs_are_nontrivial PASSED [100%] ============================== 13 passed in 0.22s ==============================
Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_791f16943c944bd4. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.
Trial trial_791f16943c944bd4 · verifier authoritative; classifier explanatory.