Add solver timeout

mythril/analysis/modules/unchecked_suicide.py

@@ -57,7 +57,7 @@ def execute(statespace):
                             for s in statespace.sstors[index]:
 
                                 if s.tainted:
-                                    can_write = Trues
+                                    can_write = True
 
                                     issue.description += "\nThere is a check on storage index " + str(index) + ". This storage index can be written to by calling the function '" + s.node.function_name + "'."
                                     break

mythril/analysis/solver.py

@@ -3,6 +3,7 @@ from mythril.exceptions import UnsatError
 
 def get_model(constraints):
     s = Solver()
+    s.set("timeout", 2000)
 
     for constraint in constraints:
         s.add(constraint)

mythril/analysis/symbolic.py

@@ -69,19 +69,22 @@ class StateSpace:
 
     def sstor_analysis(self):
 
-        logging.debug("Analyzing storage operations...")
+        logging.info("Analyzing storage operations...")
 
         for index in self.sstors:
             for s in self.sstors[index]:
 
                 # For now we simply 'taint' every storage location that is reachable without any constraint on msg.sender
 
+                taint = True
+
                 for constraint in s.node.constraints:
-                    logging.debug("Constraint: " + str(constraint))
+                    # logging.debug("Constraint: " + str(constraint))
                     if ("caller" in str(constraint)):
-                        s.tainted = False
+                        taint = False
                         break
 
+                if taint:
                     try:
                         solver.get_model(s.node.constraints)
                         s.tainted = True