     }
     private func stopSequence()
     {
-        print("bfi: EXECUTION ABORTED");
+        dprint("bfi: EXECUTION ABORTED");
         self.finished = true
         return
     }

        {
            self.stop()
            self.crashed = true
            self.output_s += String(format: "\nbfi: ACCESS VIOLATION. THERE IS NO CELL NUMBER %d\n", self.mem_idx)
            print(self.output_s)
            return
        }
    }

        {
            self.stop()
            self.crashed = true
            let str = "Access violation, there is no cell \(self.mem_idx)"
            self.output_s += String(format: "\nbfi: ACCESS VIOLATION. THERE IS NO CELL NUMBER %d\n", self.mem_idx)
            print(str)
            return
        }
    }
