Add multiple transactions to onchain analysis and fix suicide module

mythril/analysis/modules/suicide.py

@@ -3,6 +3,7 @@ from mythril.analysis.ops import *
 from mythril.analysis.report import Issue
 from mythril.analysis.swc_data import UNPROTECTED_SELFDESTRUCT
 from mythril.exceptions import UnsatError
+from mythril.laser.ethereum.transaction import ContractCreationTransaction
 import logging
 
 
@@ -54,15 +55,25 @@ def _analyze_state(state, node):
         description += "The remaining Ether is sent to: " + str(to) + "\n"
 
     not_creator_constraints = []
-    if len(state.world_state.transaction_sequence) > 1:
-        creator = state.world_state.transaction_sequence[0].caller
-        for transaction in state.world_state.transaction_sequence[1:]:
-            not_creator_constraints.append(
-                Not(Extract(159, 0, transaction.caller) == Extract(159, 0, creator))
-            )
-            not_creator_constraints.append(
-                Not(Extract(159, 0, transaction.caller) == 0)
-            )
+    if len(state.world_state.transaction_sequence) >= 1:
+        creator = None
+        if isinstance(
+            state.world_state.transaction_sequence[0], ContractCreationTransaction
+        ):
+            creator = state.world_state.transaction_sequence[0].caller
+        if creator is not None:
+            for transaction in state.world_state.transaction_sequence[1:]:
+                not_creator_constraints.append(
+                    Not(Extract(159, 0, transaction.caller) == Extract(159, 0, creator))
+                )
+                not_creator_constraints.append(
+                    Not(Extract(159, 0, transaction.caller) == 0)
+                )
+        else:
+            for transaction in state.world_state.transaction_sequence:
+                not_creator_constraints.append(
+                    Not(Extract(159, 0, transaction.caller) == 0)
+                )
 
     try:
         model = solver.get_model(node.constraints + not_creator_constraints)

mythril/laser/ethereum/svm.py

@@ -84,7 +84,19 @@ class LaserEVM:
 
         if main_address:
             logging.info("Starting message call transaction to {}".format(main_address))
-            execute_message_call(self, main_address)
+            for i in range(self.max_transaction_count):
+                initial_coverage = self._get_covered_instructions()
+
+                self.time = datetime.now()
+                logging.info(
+                    "Starting message call transaction, iteration: {}".format(i)
+                )
+                execute_message_call(self, main_address)
+
+                end_coverage = self._get_covered_instructions()
+                if end_coverage == initial_coverage:
+                    break
+
         elif creation_code:
             logging.info("Starting contract creation transaction")
             created_account = execute_contract_creation(