Putting provers in separate files

src/prover/tracing.rs

@@ -110,6 +110,8 @@ impl Tracer for IndentedTracer
         }
         self.first = false;
         println!("{}", show);
+        let _ = std::io::stdin().read_line(&mut String::new());
+        println!("\x1b[2A");
     }
 
     fn end_proof(self)