move constraint creation out of try context

6 years ago · 6887fbdc06
parent 31fd66acf5
commit 6887fbdc06
1 changed files with 8 additions and 7 deletions
--- a/mythril/analysis/modules/external_calls.py
+++ b/mythril/analysis/modules/external_calls.py
@ -108,7 +108,6 @@ def _analyze_state(state):

 def _is_precompile_call(global_state: GlobalState):
    to = global_state.mstate.stack[-2]  # type: BitVec
-    try:
    constraints = copy(global_state.mstate.constraints)
    constraints += [
        Or(
@ -116,6 +115,8 @@ def _is_precompile_call(global_state: GlobalState):
            to > symbol_factory.BitVecVal(16, 256),
        )
    ]
+
+    try:
        solver.get_model(constraints)
        return False
    except UnsatError: