4-state Busy Beaver (by A.Brady)

Comment: This TM produces 13 ones in 107 steps.
Comment: Taken (cited) from P.Michel

Constructed by $Id: hmBBsimu.awk,v 1.12 2010/07/06 19:46:42 heiner Exp $
State on
0
on
1
on 0 on 1
Print Move Goto Print Move Goto
A 1RB 1LB 1 right B 1 left B
B 1LA 0LC 1 left A 0 left C
C 1RH 1LD 1 right H 1 left D
D 1RD 0RA 1 right D 0 right A
Transition table
The same TM just simple.
Simulation is done with repetitions reduced.
The same TM with tape symbol exponents.
The same TM as 2-macro machine.
The same TM as 2-macro machine with pure additive config-TRs.

  Step Tpos St Tape contents
     0    0 A . . . . . 0
     1    1 B . . . . . 10
     2    0 A . . . . . 11
     3   -1 B . . . . .011
     4   -2 A . . . . 0111
     5   -1 B . . . . 1111
     6   -2 C . . . . 1011
     7   -3 D . . . .01011
     8   -2 D . . . .11011
     9   -1 A . . . .10011
    10    0 B . . . .10111
    11   -1 C . . . .10101
    12   -2 D . . . .10101
    13   -1 D . . . .11101
    14    0 A . . . .11001
    15    1 B . . . .11011
    16    0 C . . . .11010
    17   -1 D . . . .11010
    18    0 D . . . .11110
    19    1 A . . . .11100
    20    2 B . . . .111010
    21    1 A . . . .111011
    22    0 B . . . .111011
    23   -1 A . . . .111111
    24   -2 B . . . .111111
    25   -3 C . . . .101111
    26   -4 D . . . 0101111
    27   -3 D . . . 1101111
    28   -2 A . . . 1001111
    29   -1 B . . . 1011111
    30   -2 C . . . 1010111
    31   -3 D . . . 1010111
    32   -2 D . . . 1110111
    33   -1 A . . . 1100111
    34    0 B . . . 1101111
    35   -1 C . . . 1101011
    36   -2 D . . . 1101011
    37   -1 D . . . 1111011
    38    0 A . . . 1110011
    39    1 B . . . 1110111
    40    0 C . . . 1110101
    41   -1 D . . . 1110101
    42    0 D . . . 1111101
    43    1 A . . . 1111001
    44    2 B . . . 1111011
    45    1 C . . . 1111010
    46    0 D . . . 1111010
    47    1 D . . . 1111110
    48    2 A . . . 1111100
    49    3 B . . . 11111010
    50    2 A . . . 11111011
    51    1 B . . . 11111011
    52    0 A . . . 11111111
    53   -1 B . . . 11111111
    54   -2 C . . . 11101111
    55   -3 D . . . 11101111
    56   -2 A . . . 10101111
    57   -3 B . . . 10101111
    58   -4 A . . . 11101111
    59   -5 B . . .011101111
    60   -6 A . . 0111101111
    61   -5 B . . 1111101111
    62   -6 C . . 1011101111
    63   -7 D . .01011101111
    64   -6 D . .11011101111
    65   -5 A . .10011101111
    66   -4 B . .10111101111
    67   -5 C . .10101101111
    68   -6 D . .10101101111
    69   -5 D . .11101101111
    70   -4 A . .11001101111
    71   -3 B . .11011101111
    72   -4 C . .11010101111
    73   -5 D . .11010101111
    74   -4 D . .11110101111
    75   -3 A . .11100101111
    76   -2 B . .11101101111
    77   -3 C . .11101001111
    78   -4 D . .11101001111
    79   -3 D . .11111001111
    80   -2 A . .11110001111
    81   -1 B . .11110101111
    82   -2 A . .11110111111
    83   -3 B . .11110111111
    84   -4 A . .11111111111
    85   -5 B . .11111111111
    86   -6 C . .11011111111
    87   -7 D . .11011111111
    88   -6 A . .01011111111
    89   -7 B . .01011111111
    90   -8 A . 011011111111
    91   -7 B . 111011111111
    92   -8 C . 101011111111
    93   -9 D .0101011111111
    94   -8 D .1101011111111
    95   -7 A .1001011111111
    96   -6 B .1011011111111
    97   -7 C .1010011111111
    98   -8 D .1010011111111
    99   -7 D .1110011111111
   100   -6 A .1100011111111
   101   -5 B .1101011111111
   102   -6 A .1101111111111
   103   -7 B .1101111111111
   104   -8 A .1111111111111
   105   -9 B .1111111111111
   106  -10 C 00111111111111
   107   -9 H 10111111111111

After 107 steps (108 lines): state = H.
Produced     13 ones.
Tape index -9, scanned [-10 .. 3].
State Count Execution count First in step
on 0 on 1 on 0 on 1
A 30 18 12 0 2
B 30 13 17 1 5
C 17 1 16 106 6
D 30 14 16 7 8
Execution statistics

The same TM just simple.
The same TM with tape symbol exponents.
The same TM as 2-macro machine.
The same TM as 2-macro machine with pure additive config-TRs.

To the BB simulations page of Heiner Marxen.
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To the home page of Heiner Marxen.
Tue Jul 6 22:12:32 CEST 2010