diff --git a/Vagrantfile b/Vagrantfile
new file mode 100644
index 0000000..ac3f148
--- /dev/null
+++ b/Vagrantfile
@@ -0,0 +1,5 @@
+# -*- mode: ruby -*-
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "bento/ubuntu-16.04"
+end
diff --git a/provision-ubuntu.sh b/provision-ubuntu.sh
new file mode 100644
index 0000000..574fae9
--- /dev/null
+++ b/provision-ubuntu.sh
@@ -0,0 +1,2 @@
+#! /usr/bin/env sh
+apt-get install -y build-essential libssl-dev nasm
diff --git a/run.py b/run.py
index dfc4d57..a971681 100644
--- a/run.py
+++ b/run.py
@@ -3,30 +3,30 @@
 import os
 import logging
 import subprocess
-import json
 
 
 class Sins():
     logger = logging.getLogger()
 
     def __init__(self, parent, seed=None, run_dir=None):
-        self.logger.info('execute\n{}'.format(json.dumps(
+        self.logger.info('execute\n{}'.format((
             (parent, seed, run_dir))
         ))
 
-        if os.path.isdir(run_dir):
-            self.run_dir = os.path.abspath(run_dir)
-
-        self.seed = os.path.abspath(seed)
-
-        parent = os.path.abspath(parent)
+        self.parent = os.path.abspath(parent)
         if not os.path.isfile(parent):
             raise ValueError('Invalid executable image path.')
 
-        self.parent = parent
+        self.seed = os.path.abspath(seed)
+
+        if os.path.isdir(run_dir):
+            self.run_dir = os.path.abspath(run_dir)
+            shutil.copy2(args.seed, args.dir)
+        else:
+            self.run_dir = os.path.dirname(self.seed)
 
         parsed = self.parent, self.seed, self.run_dir
-        self.logger.info('parsed\n{}'.format(json.dumps(parsed)))
+        self.logger.info('parsed\n{}'.format((parsed)))
 
         while True:
             self.execute(self.parent, self.seed, self.run_dir)
@@ -49,9 +49,7 @@ class Sins():
         return None
 
     def execute(self, parent, scrap, cwd):
-        self.logger.info('execute\n{}'.format(
-            json.dumps((parent, scrap, cwd))
-        ))
+        self.logger.info('execute\n{}'.format(((parent, scrap, cwd))))
         subprocess.run([parent, scrap], cwd=cwd)
 
 
@@ -81,16 +79,18 @@ def hex_dumps(scrap_dir):
 
 if __name__ == '__main__':
     import argparse
+    import shutil
 
     logger = logging.getLogger()
     logger.setLevel(logging.DEBUG)
 
-    file_handler = logging.FileHandler(filename='sins.log')
+    # handler = logging.FileHandler(filename='sins.log')
+    handler = logging.StreamHandler()
     formatter = logging.Formatter(
         '#%(asctime)s %(name)s %(levelname)s\n##%(message)s\n'
     )
-    file_handler.setFormatter(formatter)
-    logger.addHandler(file_handler)
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
 
     parser = argparse.ArgumentParser()
     parser.add_argument('-seed', default='build/scrap.asm.2.o')
@@ -98,14 +98,22 @@ if __name__ == '__main__':
     parser.add_argument('-dir', default='sandbox')
     parser.add_argument('-dumps', action='store_true')
     parser.add_argument('-build', action='store_true')
+    parser.add_argument('-provision', action='store_true')
     args = parser.parse_args()
 
-    if args.build:
-        waf = ['python3', 'waf.py', 'configure', 'build']
-        waf_proc = subprocess.run(waf, stdout=subprocess.PIPE)
+    if args.provision:
+        provision = ['sudo', 'sh', 'provision-ubuntu.sh']
+        prov_proc = subprocess.run(provision)
+
+    elif args.build:
+        import sys
+
+        os.environ['CC'] = 'clang'
+        waf = [sys.executable, 'waf.py', 'configure', 'build']
+        waf_proc = subprocess.run(waf)
         logger.info(waf_proc.stdout)
 
-    if args.dumps:
+    elif args.dumps:
         hex_dumps(args.dir)
     else:
         sins = Sins(parent=args.parent, seed=args.seed, run_dir=args.dir)
diff --git a/sins.c b/sins.c
index b123906..f351d1c 100644
--- a/sins.c
+++ b/sins.c
@@ -34,6 +34,9 @@ int main(int argc, const char **argv)
     struct process_list scraps;
     struct process_list *iter = NULL;
     pid_t process_id;
+    int status = 0;
+    int count = 0;
+    int return_value = 0;
 
     INIT_LIST_HEAD(&scraps.list);
 
@@ -42,9 +45,9 @@ int main(int argc, const char **argv)
     while (1)
     {
         process_id = fork();
-        iter = (struct process_list*)malloc(sizeof(struct process_list));
+        iter = (struct process_list *)malloc(sizeof(struct process_list));
         iter->process_id = process_id;
-        list_add_tail( &(iter->list), &(scraps.list) );
+        list_add_tail(&(iter->list), &(scraps.list));
 
         if (process_id == 0)
         {
@@ -54,16 +57,19 @@ int main(int argc, const char **argv)
 
         if (process_id < 0)
         {
-            sleep(1);
+            count = 0;
             list_for_each_entry(iter, &scraps.list, list)
             {
-                continue; /* @todo clean up pids */
+                count++; /* @todo clean up pids */
+                return_value = waitpid(iter->process_id, &status, 0);
+                return_value = WEXITSTATUS(return_value);
             }
+
             break;
         }
     }
 
-    return 1;
+    return count;
 }
 
 int generation(char *seed_path)