diff --git a/std-script/judge b/std-script/judge
--- a/std-script/judge
+++ b/std-script/judge
@@ -16,9 +16,9 @@
 
 def execute(command, error_message="")
   if not system(command)
-    log "ERROR: #{error_message}"
-    puts "ERROR: #{error_message}"
-    exit(127)
+    msg = "ERROR: #{error_message}"
+    log msg
+    raise msg
   end
 end
 
@@ -105,7 +105,11 @@
 (1..(problem.num_tests)).each do |test_num|
   log "Test number: #{test_num}"
   execute("cp #{test_result_dir}/a.out #{sandbox_dir}", "Cannot copy the compiled program into #{sandbox_dir}")
-  execute("#{problem_home}/script/run #{language} #{test_num}", "Error occured during execution of the run script")
+  begin
+    execute("#{problem_home}/script/run #{language} #{test_num}", "Error occured during execution of the run script")
+  rescue
+    # do nothing
+  end
   execute("mkdir #{test_result_dir}/#{test_num}", "Cannot create directory #{test_result_dir}/#{test_num}")
   execute("mv #{sandbox_dir}/result #{test_result_dir}/#{test_num}", "Cannot copy the result file into #{test_result_dir}/#{test_num}")
   execute("mv #{sandbox_dir}/comment #{test_result_dir}/#{test_num}", "Cannot copy the comment file into #{test_result_dir}/#{test_num}")