INFO     Running translator.
INFO     translator input: ['/home/pluehne/Documents/ASP/pddl-instances/ipc-2000/domains/blocks-strips-typed/domain.pddl', '/home/pluehne/Documents/ASP/pddl-instances/ipc-2000/domains/blocks-strips-typed/instances/instance-22.pddl']
INFO     translator arguments: []
INFO     translator time limit: None
INFO     translator memory limit: None
INFO     callstring: /home/pluehne/.usr/bin/python /home/wv/bin/linux/64/fast-downward-10997/builds/release64/bin/translate/translate.py /home/pluehne/Documents/ASP/pddl-instances/ipc-2000/domains/blocks-strips-typed/domain.pddl /home/pluehne/Documents/ASP/pddl-instances/ipc-2000/domains/blocks-strips-typed/instances/instance-22.pddl
Parsing...
Parsing: [0.010s CPU, 0.013s wall-clock]
Normalizing task... [0.000s CPU, 0.001s wall-clock]
Instantiating...
Generating Datalog program... [0.000s CPU, 0.003s wall-clock]
Normalizing Datalog program...
Normalizing Datalog program: [0.020s CPU, 0.010s wall-clock]
Preparing model... [0.000s CPU, 0.006s wall-clock]
Generated 21 rules.
Computing model... [0.060s CPU, 0.064s wall-clock]
453 relevant atoms
297 auxiliary atoms
750 final queue length
1259 total queue pushes
Completing instantiation... [0.090s CPU, 0.087s wall-clock]
Instantiating: [0.170s CPU, 0.171s wall-clock]
Computing fact groups...
Finding invariants...
10 initial candidates
Finding invariants: [0.030s CPU, 0.022s wall-clock]
Checking invariant weight... [0.000s CPU, 0.002s wall-clock]
Instantiating groups... [0.000s CPU, 0.005s wall-clock]
Collecting mutex groups... [0.000s CPU, 0.001s wall-clock]
Choosing groups...
12 uncovered facts
Choosing groups: [0.010s CPU, 0.006s wall-clock]
Building translation key... [0.000s CPU, 0.002s wall-clock]
Computing fact groups: [0.050s CPU, 0.047s wall-clock]
Building STRIPS to SAS dictionary... [0.000s CPU, 0.002s wall-clock]
Building dictionary for full mutex groups... [0.000s CPU, 0.002s wall-clock]
Building mutex information...
Building mutex information: [0.010s CPU, 0.004s wall-clock]
Translating task...
Processing axioms...
Simplifying axioms... [0.000s CPU, 0.000s wall-clock]
Processing axioms: [0.000s CPU, 0.005s wall-clock]
Translating task: [0.090s CPU, 0.095s wall-clock]
352 effect conditions simplified
0 implied preconditions added
Detecting unreachable propositions...
0 operators removed
0 axioms removed
22 propositions removed
Detecting unreachable propositions: [0.050s CPU, 0.054s wall-clock]
Reordering and filtering variables...
23 of 23 variables necessary.
12 of 23 mutex groups necessary.
242 of 242 operators necessary.
0 of 0 axiom rules necessary.
Reordering and filtering variables: [0.030s CPU, 0.030s wall-clock]
Translator variables: 23
Translator derived variables: 0
Translator facts: 156
Translator goal facts: 10
Translator mutex groups: 12
Translator total mutex groups size: 144
Translator operators: 242
Translator axioms: 0
Translator task size: 2115
Translator peak memory: 37324 KB
Writing output... [0.030s CPU, 0.040s wall-clock]
Done! [0.450s CPU, 0.464s wall-clock]
planner.py version 0.0.1

Time:	 0.08s
Memory: 53MB

Iteration 1
Queue:		 [(0,0,0,True), (1,5,0,True), (2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)]
Grounded Until:	 0
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 1
Time         : 0.089s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
CPU Time     : 0.080s

Choices      : 0       
Conflicts    : 0        (Analyzed: 0)
Restarts     : 0       
Problems     : 1        (Average Length: 2.00 Splits: 0)
Lemmas       : 0        (Deleted: 0)
  Binary     : 0        (Ratio:   0.00%)
  Ternary    : 0        (Ratio:   0.00%)
  Conflict   : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 0        (Average:  0.00 Max:   0 Sum:      0)
  Executed   : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio:   0.00%)
  Bounded    : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio: 100.00%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 0        (Eliminated:    0 Frozen:    0)
Constraints  : 0        (Binary:   0.0% Ternary:   0.0% Other:   0.0%)

Memory Peak  : 189MB
Max. Length  : 0 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.00s
Memory:		 125MB (+72MB)
UNSAT
Iteration Time:	 0.00s

Iteration 2
Queue:		 [(1,5,0,True), (2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)]
Grounded Until:	 0
Expected Memory: 125MB
Grounding...	 [('step', [1]), ('step', [2]), ('step', [3]), ('step', [4]), ('step', [5]), ('check', [5])]
Grounding Time:	 0.03s
Memory:		 127MB (+2MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 2
Time         : 0.129s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
CPU Time     : 0.120s

Choices      : 0       
Conflicts    : 0        (Analyzed: 0)
Restarts     : 0       
Problems     : 2        (Average Length: 4.50 Splits: 0)
Lemmas       : 0        (Deleted: 0)
  Binary     : 0        (Ratio:   0.00%)
  Ternary    : 0        (Ratio:   0.00%)
  Conflict   : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 0        (Average:  0.00 Max:   0 Sum:      0)
  Executed   : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio:   0.00%)
  Bounded    : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio: 100.00%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 2005     (Eliminated:    0 Frozen:  653)
Constraints  : 4275     (Binary:  90.7% Ternary:   5.1% Other:   4.3%)

Memory Peak  : 189MB
Max. Length  : 0 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.00s
Memory:		 127MB (+0MB)
UNSAT
Iteration Time:	 0.04s

Iteration 3
Queue:		 [(2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)]
Grounded Until:	 5
Expected Memory: 129.0MB
Grounding...	 [('step', [6]), ('step', [7]), ('step', [8]), ('step', [9]), ('step', [10]), ('check', [10])]
Grounding Time:	 0.03s
Memory:		 129MB (+2MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 3
Time         : 0.175s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
CPU Time     : 0.168s

Choices      : 0       
Conflicts    : 1        (Analyzed: 0)
Restarts     : 0       
Problems     : 3        (Average Length: 7.00 Splits: 0)
Lemmas       : 0        (Deleted: 0)
  Binary     : 0        (Ratio:   0.00%)
  Ternary    : 0        (Ratio:   0.00%)
  Conflict   : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 0        (Average:  0.00 Max:   0 Sum:      0)
  Executed   : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio:   0.00%)
  Bounded    : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio: 100.00%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 4211     (Eliminated:    0 Frozen: 1371)
Constraints  : 18164    (Binary:  92.2% Ternary:   5.0% Other:   2.9%)

Memory Peak  : 189MB
Max. Length  : 5 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.00s
Memory:		 130MB (+1MB)
UNSAT
Iteration Time:	 0.05s

Iteration 4
Queue:		 [(3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)]
Grounded Until:	 10
Expected Memory: 133.0MB
Grounding...	 [('step', [11]), ('step', [12]), ('step', [13]), ('step', [14]), ('step', [15]), ('check', [15])]
Grounding Time:	 0.04s
Memory:		 132MB (+2MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 4
Time         : 0.222s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
CPU Time     : 0.216s

Choices      : 0       
Conflicts    : 2        (Analyzed: 0)
Restarts     : 0       
Problems     : 4        (Average Length: 9.50 Splits: 0)
Lemmas       : 0        (Deleted: 0)
  Binary     : 0        (Ratio:   0.00%)
  Ternary    : 0        (Ratio:   0.00%)
  Conflict   : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 0        (Average:  0.00 Max:   0 Sum:      0)
  Executed   : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio:   0.00%)
  Bounded    : 0        (Average:  0.00 Max:   0 Sum:      0 Ratio: 100.00%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 6502     (Eliminated:    0 Frozen: 2091)
Constraints  : 33664    (Binary:  92.4% Ternary:   5.0% Other:   2.6%)

Memory Peak  : 189MB
Max. Length  : 10 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.00s
Memory:		 132MB (+0MB)
UNSAT
Iteration Time:	 0.05s

Iteration 5
Queue:		 [(4,20,0,True), (5,25,0,True), (6,30,0,True)]
Grounded Until:	 15
Expected Memory: 135.0MB
Grounding...	 [('step', [16]), ('step', [17]), ('step', [18]), ('step', [19]), ('step', [20]), ('check', [20])]
Grounding Time:	 0.03s
Memory:		 134MB (+2MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 5
Time         : 0.271s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
CPU Time     : 0.264s

Choices      : 75       (Domain: 75)
Conflicts    : 23       (Analyzed: 20)
Restarts     : 0       
Problems     : 5        (Average Length: 12.00 Splits: 0)
Lemmas       : 20       (Deleted: 0)
  Binary     : 6        (Ratio:  30.00%)
  Ternary    : 0        (Ratio:   0.00%)
  Conflict   : 20       (Average Length:   82.3 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 20       (Average:  4.90 Max:  24 Sum:     98)
  Executed   : 17       (Average:  3.75 Max:  24 Sum:     75 Ratio:  76.53%)
  Bounded    : 3        (Average:  7.67 Max:  21 Sum:     23 Ratio:  23.47%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 8793     (Eliminated:    0 Frozen: 2811)
Constraints  : 49164    (Binary:  92.5% Ternary:   5.0% Other:   2.5%)

Memory Peak  : 189MB
Max. Length  : 15 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.01s
Memory:		 135MB (+1MB)
UNSAT
Iteration Time:	 0.05s

Iteration 6
Queue:		 [(5,25,0,True), (6,30,0,True)]
Grounded Until:	 20
Expected Memory: 138.0MB
Grounding...	 [('step', [21]), ('step', [22]), ('step', [23]), ('step', [24]), ('step', [25]), ('check', [25])]
Grounding Time:	 0.04s
Memory:		 137MB (+2MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 6
Time         : 0.339s (Solving: 0.01s 1st Model: 0.00s Unsat: 0.01s)
CPU Time     : 0.332s

Choices      : 622      (Domain: 622)
Conflicts    : 86       (Analyzed: 82)
Restarts     : 1        (Average: 82.00 Last: 20)
Problems     : 6        (Average Length: 14.50 Splits: 0)
Lemmas       : 82       (Deleted: 0)
  Binary     : 18       (Ratio:  21.95%)
  Ternary    : 2        (Ratio:   2.44%)
  Conflict   : 82       (Average Length:   93.2 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 82       (Average:  8.21 Max:  52 Sum:    673)
  Executed   : 75       (Average:  7.59 Max:  52 Sum:    622 Ratio:  92.42%)
  Bounded    : 7        (Average:  7.29 Max:  25 Sum:     51 Ratio:   7.58%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 11084    (Eliminated:    0 Frozen: 3531)
Constraints  : 64664    (Binary:  92.6% Ternary:   5.0% Other:   2.4%)

Memory Peak  : 189MB
Max. Length  : 20 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.01s
Memory:		 138MB (+1MB)
UNSAT
Iteration Time:	 0.07s

Iteration 7
Queue:		 [(6,30,0,True)]
Grounded Until:	 25
Expected Memory: 141.0MB
Grounding...	 [('step', [26]), ('step', [27]), ('step', [28]), ('step', [29]), ('step', [30]), ('check', [30])]
Grounding Time:	 0.03s
Memory:		 139MB (+1MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 7
Time         : 0.417s (Solving: 0.04s 1st Model: 0.00s Unsat: 0.04s)
CPU Time     : 0.408s

Choices      : 1753     (Domain: 1753)
Conflicts    : 249      (Analyzed: 244)
Restarts     : 3        (Average: 81.33 Last: 20)
Problems     : 7        (Average Length: 17.00 Splits: 0)
Lemmas       : 244      (Deleted: 0)
  Binary     : 43       (Ratio:  17.62%)
  Ternary    : 5        (Ratio:   2.05%)
  Conflict   : 244      (Average Length:  193.2 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 244      (Average:  7.41 Max:  58 Sum:   1808)
  Executed   : 233      (Average:  7.18 Max:  58 Sum:   1753 Ratio:  96.96%)
  Bounded    : 11       (Average:  5.00 Max:  25 Sum:     55 Ratio:   3.04%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 13375    (Eliminated:    0 Frozen: 4251)
Constraints  : 80164    (Binary:  92.6% Ternary:   5.0% Other:   2.4%)

Memory Peak  : 189MB
Max. Length  : 25 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 0.03s
Memory:		 140MB (+1MB)
UNSAT
Iteration Time:	 0.08s

Iteration 8
Queue:		 [(7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True)]
Grounded Until:	 30
Expected Memory: 143.0MB
Grounding...	 [('step', [31]), ('step', [32]), ('step', [33]), ('step', [34]), ('step', [35]), ('check', [35])]
Grounding Time:	 0.05s
Memory:		 141MB (+1MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 0
Calls        : 8
Time         : 2.471s (Solving: 2.03s 1st Model: 0.00s Unsat: 2.03s)
CPU Time     : 2.464s

Choices      : 27710    (Domain: 27710)
Conflicts    : 5485     (Analyzed: 5479)
Restarts     : 63       (Average: 86.97 Last: 20)
Problems     : 8        (Average Length: 19.50 Splits: 0)
Lemmas       : 5479     (Deleted: 2591)
  Binary     : 105      (Ratio:   1.92%)
  Ternary    : 20       (Ratio:   0.37%)
  Conflict   : 5479     (Average Length: 2333.8 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 5479     (Average:  4.72 Max: 294 Sum:  25836)
  Executed   : 5464     (Average:  4.70 Max: 294 Sum:  25777 Ratio:  99.77%)
  Bounded    : 15       (Average:  3.93 Max:  25 Sum:     59 Ratio:   0.23%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 15666    (Eliminated:    0 Frozen: 4971)
Constraints  : 95664    (Binary:  92.6% Ternary:   5.0% Other:   2.4%)

Memory Peak  : 189MB
Max. Length  : 30 steps
Models       : 0

[endof: stats after solve call]
Solving Time:	 1.99s
Memory:		 143MB (+2MB)
UNSAT
Iteration Time:	 2.06s

Iteration 9
Queue:		 [(8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True)]
Grounded Until:	 35
Expected Memory: 146.0MB
Grounding...	 [('step', [36]), ('step', [37]), ('step', [38]), ('step', [39]), ('step', [40]), ('check', [40])]
Grounding Time:	 0.05s
Memory:		 144MB (+1MB)
Unblocking actions...
Solving...
[start: stats after solve call]

Models       : 1+
Calls        : 9
Time         : 2.571s (Solving: 2.04s 1st Model: 0.01s Unsat: 2.03s)
CPU Time     : 2.564s

Choices      : 28252    (Domain: 28252)
Conflicts    : 5495     (Analyzed: 5489)
Restarts     : 63       (Average: 87.13 Last: 20)
Model-Level  : 415.0   
Problems     : 9        (Average Length: 22.00 Splits: 0)
Lemmas       : 5489     (Deleted: 2591)
  Binary     : 105      (Ratio:   1.91%)
  Ternary    : 20       (Ratio:   0.36%)
  Conflict   : 5489     (Average Length: 2329.8 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 5489     (Average:  4.74 Max: 294 Sum:  26005)
  Executed   : 5474     (Average:  4.73 Max: 294 Sum:  25946 Ratio:  99.77%)
  Bounded    : 15       (Average:  3.93 Max:  25 Sum:     59 Ratio:   0.23%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 17957    (Eliminated:    0 Frozen: 5691)
Constraints  : 111164   (Binary:  92.6% Ternary:   5.0% Other:   2.4%)

Memory Peak  : 189MB
Max. Length  : 35 steps
Models       : 1

[endof: stats after solve call]
Solving Time:	 0.02s
Memory:		 145MB (+1MB)
SAT
Testing...
SERIALIZABLE
Testing Time:	 0.06s
Memory:		 146MB (+1MB)
Answer: 1
occurs(action(("unstack","j","d")),1) occurs(action(("put-down","j")),2) occurs(action(("pick-up","d")),3) occurs(action(("put-down","d")),4) occurs(action(("unstack","c","e")),5) occurs(action(("put-down","c")),6) occurs(action(("pick-up","e")),7) occurs(action(("put-down","e")),8) occurs(action(("unstack","b","g")),9) occurs(action(("put-down","b")),10) occurs(action(("unstack","g","h")),11) occurs(action(("stack","g","c")),12) occurs(action(("pick-up","j")),13) occurs(action(("stack","j","d")),14) occurs(action(("unstack","j","d")),15) occurs(action(("put-down","j")),16) occurs(action(("pick-up","e")),17) occurs(action(("stack","e","g")),18) occurs(action(("unstack","h","k")),19) occurs(action(("put-down","h")),20) occurs(action(("unstack","k","a")),21) occurs(action(("put-down","k")),22) occurs(action(("unstack","a","f")),23) occurs(action(("put-down","a")),24) occurs(action(("unstack","f","i")),25) occurs(action(("stack","f","e")),26) occurs(action(("pick-up","i")),27) occurs(action(("stack","i","f")),28) occurs(action(("pick-up","k")),29) occurs(action(("stack","k","i")),30) occurs(action(("pick-up","h")),31) occurs(action(("stack","h","k")),32) occurs(action(("pick-up","b")),33) occurs(action(("stack","b","h")),34) occurs(action(("pick-up","d")),35) occurs(action(("stack","d","b")),36) occurs(action(("pick-up","j")),37) occurs(action(("stack","j","d")),38) occurs(action(("pick-up","a")),39) occurs(action(("stack","a","j")),40)
SATISFIABLE

Models       : 1+
Calls        : 9
Time         : 2.571s (Solving: 2.04s 1st Model: 0.01s Unsat: 2.03s)
CPU Time     : 2.564s

Choices      : 28252    (Domain: 28252)
Conflicts    : 5495     (Analyzed: 5489)
Restarts     : 63       (Average: 87.13 Last: 20)
Model-Level  : 415.0   
Problems     : 9        (Average Length: 22.00 Splits: 0)
Lemmas       : 5489     (Deleted: 2591)
  Binary     : 105      (Ratio:   1.91%)
  Ternary    : 20       (Ratio:   0.36%)
  Conflict   : 5489     (Average Length: 2329.8 Ratio: 100.00%) 
  Loop       : 0        (Average Length:    0.0 Ratio:   0.00%) 
  Other      : 0        (Average Length:    0.0 Ratio:   0.00%) 
Backjumps    : 5489     (Average:  4.74 Max: 294 Sum:  26005)
  Executed   : 5474     (Average:  4.73 Max: 294 Sum:  25946 Ratio:  99.77%)
  Bounded    : 15       (Average:  3.93 Max:  25 Sum:     59 Ratio:   0.23%)

Rules        : 6520    
Atoms        : 6520    
Bodies       : 1        (Original: 0)
Tight        : Yes
Variables    : 17957    (Eliminated:    0 Frozen: 5691)
Constraints  : 111164   (Binary:  92.6% Ternary:   5.0% Other:   2.4%)

Memory Peak  : 189MB
Max. Length  : 40 steps
Sol. Length  : 40 steps
Models       : 1


