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CSE: constrain address and contract field and parameters #828

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CSE: constrain address and contract field and parameters #828

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5084dc9
Assume an `address` field is not `vm`
palinatolmach Sep 23, 2024
7c8c189
Merge branch 'master' into cse-address-constraints
palinatolmach Sep 25, 2024
3b38d1d
Merge branch 'master' into cse-address-constraints
palinatolmach Sep 25, 2024
2397468
Add percompile constraints
palinatolmach Sep 26, 2024
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27 changes: 26 additions & 1 deletion src/kontrol/prove.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1044,7 +1044,7 @@ def _init_cterm(
else:
# Symbolic accounts of all relevant contracts
accounts, storage_constraints = _create_cse_accounts(
foundry, storage_fields, contract_account_name, contract_code
foundry, storage_fields, contract_account_name, contract_code, schedule
)

accounts.append(KVariable('ACCOUNTS_REST', sort=KSort('AccountCellMap')))
Expand Down Expand Up @@ -1135,6 +1135,7 @@ def _create_cse_accounts(
storage_fields: tuple[StorageField, ...],
contract_name: str,
contract_code: KInner,
schedule: KApply,
) -> tuple[list[KInner], list[KApply]]:
"""
Recursively generates a list of new accounts corresponding to `contract` fields, each having <code> and <storage> cell (partially) set up.
Expand Down Expand Up @@ -1216,6 +1217,30 @@ def extend_storage(map: KInner, slot: int, value: KInner) -> KInner:
address_range_ub = ltInt(field_variable, intToken(1461501637330902918203684832716283019655932542976))
new_account_constraints.append(mlEqualsTrue(address_range_lb))
new_account_constraints.append(mlEqualsTrue(address_range_ub))
# Address is not the cheatcode contract address
new_account_constraints.append(
mlEqualsFalse(
KApply(
'_==Int_',
[
field_variable,
Foundry.address_CHEATCODE(),
],
)
)
)
# Address is not a precompiled contract address
# _account_constraints.append(
# mlEqualsFalse(KEVM.is_precompiled_account(acct_id.args[0], cterm.cell('SCHEDULE_CELL')))
# )
new_account_constraints.append(
mlEqualsFalse(
KEVM.is_precompiled_account(
field_variable,
schedule,
)
)
)
# Processing of contracts
if field.data_type.startswith('contract '):
if field.linked_interface:
Expand Down
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