Hi Nil,

Am Montag, 13. Januar 2020 06:46:06 UTC schrieb Nil:
>
> Hi Alex, Vitaly, 
>
> Alex, please set the level of the ure logger to debug and attach the log 
> file here. 
>

I set the debug level as indicated by Vitaly, but the only output in the 
opencog.log is this :
[2020-01-13 17:58:15:775] [INFO] [global_python_initialize] Start
[2020-01-13 17:58:15:775] [INFO] [global_python_initialize] Adding OpenCog 
sys.path directories
[2020-01-13 17:58:15:775] [INFO] [global_python_initialize] Finish
[2020-01-13 17:58:15:775] [INFO] 
PythonEval::initialize_python_objects_and_imports Finished initialising 
python evaluator.


 I added a trace atomspace and the content of that is this (with a bit of 
other output before and after it) after running the backward chainer on the 
given query:
Robot position: 1
Picker position: 2

Query: (AndLink   (EvaluationLink     (PredicateNode "linked")    
(ListLink       (VariableNode "origin")      (VariableNode "destination")  
  )  )  (StateLink     (ListLink       (VariableNode "picker")      
(PredicateNode "has_crate")    )    (ConceptNode "FALSE")  )  (StateLink    
 (ListLink       (VariableNode "picker")      (PredicateNode 
"seen_picking")    )    (ConceptNode "FALSE")  )  (StateLink    
 (ConceptNode "Robot01")    (VariableNode "origin")  )  (StateLink    
 (ConceptNode "Picker01")    (VariableNode "destination")  ))

[(ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
, (ConceptNode "FALSE") ; [8059389032376030371][4]
, (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
, (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; [8656126396895433734][4]
, (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
, (PredicateNode "seen_picking") ; [4980394588905344669][4]
, (PredicateNode "URE:BC:and-BIT") ; [7937878864955488923][4]
, (PredicateNode "URE:BC:proof-of") ; [7861690586484479273][4]
, (PredicateNode "has_crate") ; [2386365538716170588][4]
, (PredicateNode "URE:BC:target") ; [3655466572582412298][4]
, (PredicateNode "linked") ; [7377131820250567544][4]
, (ListLink
  (DontExecLink
    (BindLink
      (VariableList
        (VariableNode "picker") ; [3320396016748559776][4]
        (VariableNode "origin") ; [1432856408906525938][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [12560458022798011237][4]
      (AndLink
        (EvaluationLink
          (PredicateNode "linked") ; [7377131820250567544][4]
          (ListLink
            (VariableNode "origin") ; [1432856408906525938][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [16211263182419955128][4]
        ) ; [11737869013450940133][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "has_crate") ; [2386365538716170588][4]
          ) ; [14008516234445170105][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [14480148654898681519][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "seen_picking") ; [4980394588905344669][4]
          ) ; [13783631960832222081][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [15741508350878763237][4]
        (StateLink
          (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
          (VariableNode "origin") ; [1432856408906525938][4]
        ) ; [16982141063225259837][4]
        (StateLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [18172667735726832559][4]
      ) ; [10202968835893361781][4]
      (AndLink
        (EvaluationLink
          (PredicateNode "linked") ; [7377131820250567544][4]
          (ListLink
            (VariableNode "origin") ; [1432856408906525938][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [16211263182419955128][4]
        ) ; [11737869013450940133][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "has_crate") ; [2386365538716170588][4]
          ) ; [14008516234445170105][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [14480148654898681519][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "seen_picking") ; [4980394588905344669][4]
          ) ; [13783631960832222081][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [15741508350878763237][4]
        (StateLink
          (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
          (VariableNode "origin") ; [1432856408906525938][4]
        ) ; [16982141063225259837][4]
        (StateLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [18172667735726832559][4]
      ) ; [10202968835893361781][4]
    ) ; [10378290140134742943][4]
  ) ; [10056885220319300478][4]
  (AndLink
    (StateLink (stv 1.000000 1.000000)
      (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
      (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
    ) ; [10246810040960724207][4]
    (StateLink (stv 1.000000 1.000000)
      (ListLink
        (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
        (PredicateNode "seen_picking") ; [4980394588905344669][4]
      ) ; [13553464137728764687][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [10800256415231817922][4]
    (StateLink (stv 1.000000 1.000000)
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
    ) ; [12979417854504668522][4]
    (EvaluationLink (stv 1.000000 1.000000)
      (PredicateNode "linked") ; [7377131820250567544][4]
      (ListLink
        (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
        (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
      ) ; [12650955823366188636][4]
    ) ; [13021153103939626777][4]
    (StateLink (stv 1.000000 1.000000)
      (ListLink
        (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
        (PredicateNode "has_crate") ; [2386365538716170588][4]
      ) ; [16000349526672526752][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [13021724614411824842][4]
  ) ; [11420344547789796517][4]
) ; [13191677814610597869][4]
, (ListLink
  (VariableNode "origin") ; [1432856408906525938][4]
  (VariableNode "destination") ; [8732522677762917232][4]
) ; [16211263182419955128][4]
, (ListLink
  (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
  (PredicateNode "has_crate") ; [2386365538716170588][4]
) ; [16000349526672526752][4]
, (ListLink
  (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
  (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
) ; [12650955823366188636][4]
, (ListLink
  (VariableNode "picker") ; [3320396016748559776][4]
  (PredicateNode "has_crate") ; [2386365538716170588][4]
) ; [14008516234445170105][4]
, (ListLink
  (VariableNode "picker") ; [3320396016748559776][4]
  (PredicateNode "seen_picking") ; [4980394588905344669][4]
) ; [13783631960832222081][4]
, (ListLink
  (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
  (PredicateNode "seen_picking") ; [4980394588905344669][4]
) ; [13553464137728764687][4]
, (AndLink
  (StateLink (stv 1.000000 1.000000)
    (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
    (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
  ) ; [10246810040960724207][4]
  (StateLink (stv 1.000000 1.000000)
    (ListLink
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (PredicateNode "seen_picking") ; [4980394588905344669][4]
    ) ; [13553464137728764687][4]
    (ConceptNode "FALSE") ; [8059389032376030371][4]
  ) ; [10800256415231817922][4]
  (StateLink (stv 1.000000 1.000000)
    (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
    (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
  ) ; [12979417854504668522][4]
  (EvaluationLink (stv 1.000000 1.000000)
    (PredicateNode "linked") ; [7377131820250567544][4]
    (ListLink
      (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
      (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
    ) ; [12650955823366188636][4]
  ) ; [13021153103939626777][4]
  (StateLink (stv 1.000000 1.000000)
    (ListLink
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (PredicateNode "has_crate") ; [2386365538716170588][4]
    ) ; [16000349526672526752][4]
    (ConceptNode "FALSE") ; [8059389032376030371][4]
  ) ; [13021724614411824842][4]
) ; [11420344547789796517][4]
, (AndLink
  (EvaluationLink
    (PredicateNode "linked") ; [7377131820250567544][4]
    (ListLink
      (VariableNode "origin") ; [1432856408906525938][4]
      (VariableNode "destination") ; [8732522677762917232][4]
    ) ; [16211263182419955128][4]
  ) ; [11737869013450940133][4]
  (StateLink
    (ListLink
      (VariableNode "picker") ; [3320396016748559776][4]
      (PredicateNode "has_crate") ; [2386365538716170588][4]
    ) ; [14008516234445170105][4]
    (ConceptNode "FALSE") ; [8059389032376030371][4]
  ) ; [14480148654898681519][4]
  (StateLink
    (ListLink
      (VariableNode "picker") ; [3320396016748559776][4]
      (PredicateNode "seen_picking") ; [4980394588905344669][4]
    ) ; [13783631960832222081][4]
    (ConceptNode "FALSE") ; [8059389032376030371][4]
  ) ; [15741508350878763237][4]
  (StateLink
    (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
    (VariableNode "origin") ; [1432856408906525938][4]
  ) ; [16982141063225259837][4]
  (StateLink
    (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
    (VariableNode "destination") ; [8732522677762917232][4]
  ) ; [18172667735726832559][4]
) ; [10202968835893361781][4]
, (VariableNode "picker") ; [3320396016748559776][4]
, (VariableNode "destination") ; [8732522677762917232][4]
, (VariableNode "origin") ; [1432856408906525938][4]
, (VariableList
  (VariableNode "picker") ; [3320396016748559776][4]
  (VariableNode "origin") ; [1432856408906525938][4]
  (VariableNode "destination") ; [8732522677762917232][4]
) ; [12560458022798011237][4]
, (DontExecLink
  (BindLink
    (VariableList
      (VariableNode "picker") ; [3320396016748559776][4]
      (VariableNode "origin") ; [1432856408906525938][4]
      (VariableNode "destination") ; [8732522677762917232][4]
    ) ; [12560458022798011237][4]
    (AndLink
      (EvaluationLink
        (PredicateNode "linked") ; [7377131820250567544][4]
        (ListLink
          (VariableNode "origin") ; [1432856408906525938][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [16211263182419955128][4]
      ) ; [11737869013450940133][4]
      (StateLink
        (ListLink
          (VariableNode "picker") ; [3320396016748559776][4]
          (PredicateNode "has_crate") ; [2386365538716170588][4]
        ) ; [14008516234445170105][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [14480148654898681519][4]
      (StateLink
        (ListLink
          (VariableNode "picker") ; [3320396016748559776][4]
          (PredicateNode "seen_picking") ; [4980394588905344669][4]
        ) ; [13783631960832222081][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [15741508350878763237][4]
      (StateLink
        (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
        (VariableNode "origin") ; [1432856408906525938][4]
      ) ; [16982141063225259837][4]
      (StateLink
        (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [18172667735726832559][4]
    ) ; [10202968835893361781][4]
    (AndLink
      (EvaluationLink
        (PredicateNode "linked") ; [7377131820250567544][4]
        (ListLink
          (VariableNode "origin") ; [1432856408906525938][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [16211263182419955128][4]
      ) ; [11737869013450940133][4]
      (StateLink
        (ListLink
          (VariableNode "picker") ; [3320396016748559776][4]
          (PredicateNode "has_crate") ; [2386365538716170588][4]
        ) ; [14008516234445170105][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [14480148654898681519][4]
      (StateLink
        (ListLink
          (VariableNode "picker") ; [3320396016748559776][4]
          (PredicateNode "seen_picking") ; [4980394588905344669][4]
        ) ; [13783631960832222081][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [15741508350878763237][4]
      (StateLink
        (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
        (VariableNode "origin") ; [1432856408906525938][4]
      ) ; [16982141063225259837][4]
      (StateLink
        (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [18172667735726832559][4]
    ) ; [10202968835893361781][4]
  ) ; [10378290140134742943][4]
) ; [10056885220319300478][4]
, (StateLink (stv 1.000000 1.000000)
  (ListLink
    (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
    (PredicateNode "has_crate") ; [2386365538716170588][4]
  ) ; [16000349526672526752][4]
  (ConceptNode "FALSE") ; [8059389032376030371][4]
) ; [13021724614411824842][4]
, (StateLink (stv 1.000000 1.000000)
  (ListLink
    (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
    (PredicateNode "seen_picking") ; [4980394588905344669][4]
  ) ; [13553464137728764687][4]
  (ConceptNode "FALSE") ; [8059389032376030371][4]
) ; [10800256415231817922][4]
, (StateLink (stv 1.000000 1.000000)
  (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; [8656126396895433734][4]
  (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
) ; [10246810040960724207][4]
, (StateLink
  (ListLink
    (VariableNode "picker") ; [3320396016748559776][4]
    (PredicateNode "has_crate") ; [2386365538716170588][4]
  ) ; [14008516234445170105][4]
  (ConceptNode "FALSE") ; [8059389032376030371][4]
) ; [14480148654898681519][4]
, (StateLink (stv 1.000000 1.000000)
  (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
  (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
) ; [12979417854504668522][4]
, (StateLink
  (ListLink
    (VariableNode "picker") ; [3320396016748559776][4]
    (PredicateNode "seen_picking") ; [4980394588905344669][4]
  ) ; [13783631960832222081][4]
  (ConceptNode "FALSE") ; [8059389032376030371][4]
) ; [15741508350878763237][4]
, (StateLink
  (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; [8656126396895433734][4]
  (VariableNode "origin") ; [1432856408906525938][4]
) ; [16982141063225259837][4]
, (StateLink
  (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
  (VariableNode "destination") ; [8732522677762917232][4]
) ; [18172667735726832559][4]
, (BindLink
  (VariableList
    (VariableNode "picker") ; [3320396016748559776][4]
    (VariableNode "origin") ; [1432856408906525938][4]
    (VariableNode "destination") ; [8732522677762917232][4]
  ) ; [12560458022798011237][4]
  (AndLink
    (EvaluationLink
      (PredicateNode "linked") ; [7377131820250567544][4]
      (ListLink
        (VariableNode "origin") ; [1432856408906525938][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [16211263182419955128][4]
    ) ; [11737869013450940133][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "has_crate") ; [2386365538716170588][4]
      ) ; [14008516234445170105][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [14480148654898681519][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "seen_picking") ; [4980394588905344669][4]
      ) ; [13783631960832222081][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [15741508350878763237][4]
    (StateLink
      (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
      (VariableNode "origin") ; [1432856408906525938][4]
    ) ; [16982141063225259837][4]
    (StateLink
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (VariableNode "destination") ; [8732522677762917232][4]
    ) ; [18172667735726832559][4]
  ) ; [10202968835893361781][4]
  (AndLink
    (EvaluationLink
      (PredicateNode "linked") ; [7377131820250567544][4]
      (ListLink
        (VariableNode "origin") ; [1432856408906525938][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [16211263182419955128][4]
    ) ; [11737869013450940133][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "has_crate") ; [2386365538716170588][4]
      ) ; [14008516234445170105][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [14480148654898681519][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "seen_picking") ; [4980394588905344669][4]
      ) ; [13783631960832222081][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [15741508350878763237][4]
    (StateLink
      (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
      (VariableNode "origin") ; [1432856408906525938][4]
    ) ; [16982141063225259837][4]
    (StateLink
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (VariableNode "destination") ; [8732522677762917232][4]
    ) ; [18172667735726832559][4]
  ) ; [10202968835893361781][4]
) ; [10378290140134742943][4]
, (EvaluationLink
  (PredicateNode "URE:BC:proof-of") ; [7861690586484479273][4]
  (ListLink
    (DontExecLink
      (BindLink
        (VariableList
          (VariableNode "picker") ; [3320396016748559776][4]
          (VariableNode "origin") ; [1432856408906525938][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [12560458022798011237][4]
        (AndLink
          (EvaluationLink
            (PredicateNode "linked") ; [7377131820250567544][4]
            (ListLink
              (VariableNode "origin") ; [1432856408906525938][4]
              (VariableNode "destination") ; [8732522677762917232][4]
            ) ; [16211263182419955128][4]
          ) ; [11737869013450940133][4]
          (StateLink
            (ListLink
              (VariableNode "picker") ; [3320396016748559776][4]
              (PredicateNode "has_crate") ; [2386365538716170588][4]
            ) ; [14008516234445170105][4]
            (ConceptNode "FALSE") ; [8059389032376030371][4]
          ) ; [14480148654898681519][4]
          (StateLink
            (ListLink
              (VariableNode "picker") ; [3320396016748559776][4]
              (PredicateNode "seen_picking") ; [4980394588905344669][4]
            ) ; [13783631960832222081][4]
            (ConceptNode "FALSE") ; [8059389032376030371][4]
          ) ; [15741508350878763237][4]
          (StateLink
            (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
            (VariableNode "origin") ; [1432856408906525938][4]
          ) ; [16982141063225259837][4]
          (StateLink
            (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [18172667735726832559][4]
        ) ; [10202968835893361781][4]
        (AndLink
          (EvaluationLink
            (PredicateNode "linked") ; [7377131820250567544][4]
            (ListLink
              (VariableNode "origin") ; [1432856408906525938][4]
              (VariableNode "destination") ; [8732522677762917232][4]
            ) ; [16211263182419955128][4]
          ) ; [11737869013450940133][4]
          (StateLink
            (ListLink
              (VariableNode "picker") ; [3320396016748559776][4]
              (PredicateNode "has_crate") ; [2386365538716170588][4]
            ) ; [14008516234445170105][4]
            (ConceptNode "FALSE") ; [8059389032376030371][4]
          ) ; [14480148654898681519][4]
          (StateLink
            (ListLink
              (VariableNode "picker") ; [3320396016748559776][4]
              (PredicateNode "seen_picking") ; [4980394588905344669][4]
            ) ; [13783631960832222081][4]
            (ConceptNode "FALSE") ; [8059389032376030371][4]
          ) ; [15741508350878763237][4]
          (StateLink
            (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
            (VariableNode "origin") ; [1432856408906525938][4]
          ) ; [16982141063225259837][4]
          (StateLink
            (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [18172667735726832559][4]
        ) ; [10202968835893361781][4]
      ) ; [10378290140134742943][4]
    ) ; [10056885220319300478][4]
    (AndLink
      (StateLink (stv 1.000000 1.000000)
        (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
        (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
      ) ; [10246810040960724207][4]
      (StateLink (stv 1.000000 1.000000)
        (ListLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (PredicateNode "seen_picking") ; [4980394588905344669][4]
        ) ; [13553464137728764687][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [10800256415231817922][4]
      (StateLink (stv 1.000000 1.000000)
        (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
        (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
      ) ; [12979417854504668522][4]
      (EvaluationLink (stv 1.000000 1.000000)
        (PredicateNode "linked") ; [7377131820250567544][4]
        (ListLink
          (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
          (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
        ) ; [12650955823366188636][4]
      ) ; [13021153103939626777][4]
      (StateLink (stv 1.000000 1.000000)
        (ListLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (PredicateNode "has_crate") ; [2386365538716170588][4]
        ) ; [16000349526672526752][4]
        (ConceptNode "FALSE") ; [8059389032376030371][4]
      ) ; [13021724614411824842][4]
    ) ; [11420344547789796517][4]
  ) ; [13191677814610597869][4]
) ; [12250320817453029415][4]
, (EvaluationLink (stv 1.000000 1.000000)
  (PredicateNode "linked") ; [7377131820250567544][4]
  (ListLink
    (ConceptNode "WayPoint001" (stv 1.000000 1.000000)) ; 
[1461315689995762073][4]
    (ConceptNode "WayPoint002" (stv 1.000000 1.000000)) ; 
[1421707021219169969][4]
  ) ; [12650955823366188636][4]
) ; [13021153103939626777][4]
, (EvaluationLink (stv 1.000000 1.000000)
  (PredicateNode "URE:BC:target") ; [3655466572582412298][4]
  (AndLink
    (EvaluationLink
      (PredicateNode "linked") ; [7377131820250567544][4]
      (ListLink
        (VariableNode "origin") ; [1432856408906525938][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [16211263182419955128][4]
    ) ; [11737869013450940133][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "has_crate") ; [2386365538716170588][4]
      ) ; [14008516234445170105][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [14480148654898681519][4]
    (StateLink
      (ListLink
        (VariableNode "picker") ; [3320396016748559776][4]
        (PredicateNode "seen_picking") ; [4980394588905344669][4]
      ) ; [13783631960832222081][4]
      (ConceptNode "FALSE") ; [8059389032376030371][4]
    ) ; [15741508350878763237][4]
    (StateLink
      (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
      (VariableNode "origin") ; [1432856408906525938][4]
    ) ; [16982141063225259837][4]
    (StateLink
      (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
      (VariableNode "destination") ; [8732522677762917232][4]
    ) ; [18172667735726832559][4]
  ) ; [10202968835893361781][4]
) ; [9437574303461310653][4]
, (EvaluationLink
  (PredicateNode "linked") ; [7377131820250567544][4]
  (ListLink
    (VariableNode "origin") ; [1432856408906525938][4]
    (VariableNode "destination") ; [8732522677762917232][4]
  ) ; [16211263182419955128][4]
) ; [11737869013450940133][4]
, (EvaluationLink (stv 1.000000 1.000000)
  (PredicateNode "URE:BC:and-BIT") ; [7937878864955488923][4]
  (DontExecLink
    (BindLink
      (VariableList
        (VariableNode "picker") ; [3320396016748559776][4]
        (VariableNode "origin") ; [1432856408906525938][4]
        (VariableNode "destination") ; [8732522677762917232][4]
      ) ; [12560458022798011237][4]
      (AndLink
        (EvaluationLink
          (PredicateNode "linked") ; [7377131820250567544][4]
          (ListLink
            (VariableNode "origin") ; [1432856408906525938][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [16211263182419955128][4]
        ) ; [11737869013450940133][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "has_crate") ; [2386365538716170588][4]
          ) ; [14008516234445170105][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [14480148654898681519][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "seen_picking") ; [4980394588905344669][4]
          ) ; [13783631960832222081][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [15741508350878763237][4]
        (StateLink
          (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
          (VariableNode "origin") ; [1432856408906525938][4]
        ) ; [16982141063225259837][4]
        (StateLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [18172667735726832559][4]
      ) ; [10202968835893361781][4]
      (AndLink
        (EvaluationLink
          (PredicateNode "linked") ; [7377131820250567544][4]
          (ListLink
            (VariableNode "origin") ; [1432856408906525938][4]
            (VariableNode "destination") ; [8732522677762917232][4]
          ) ; [16211263182419955128][4]
        ) ; [11737869013450940133][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "has_crate") ; [2386365538716170588][4]
          ) ; [14008516234445170105][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [14480148654898681519][4]
        (StateLink
          (ListLink
            (VariableNode "picker") ; [3320396016748559776][4]
            (PredicateNode "seen_picking") ; [4980394588905344669][4]
          ) ; [13783631960832222081][4]
          (ConceptNode "FALSE") ; [8059389032376030371][4]
        ) ; [15741508350878763237][4]
        (StateLink
          (ConceptNode "Robot01" (stv 1.000000 1.000000)) ; 
[8656126396895433734][4]
          (VariableNode "origin") ; [1432856408906525938][4]
        ) ; [16982141063225259837][4]
        (StateLink
          (ConceptNode "Picker01" (stv 1.000000 1.000000)) ; 
[5250680523874337442][4]
          (VariableNode "destination") ; [8732522677762917232][4]
        ) ; [18172667735726832559][4]
      ) ; [10202968835893361781][4]
    ) ; [10378290140134742943][4]
  ) ; [10056885220319300478][4]
) ; [9756272752300218847][4]
, (SchemaNode "URE:BC:expand-and-BIT") ; [9124129740472279502][4]
]
Result (SetLink   (AndLink     (StateLink       (ConceptNode "Robot01")    
  (ConceptNode "WayPoint001")    )    (StateLink       (ListLink        
 (ConceptNode "Picker01")        (PredicateNode "seen_picking")      )      
(ConceptNode "FALSE")    )    (StateLink       (ConceptNode "Picker01")    
  (ConceptNode "WayPoint002")    )    (EvaluationLink       (PredicateNode 
"linked")      (ListLink         (ConceptNode "WayPoint001")        
(ConceptNode "WayPoint002")      )    )    (StateLink       (ListLink      
   (ConceptNode "Picker01")        (PredicateNode "has_crate")      )      
(ConceptNode "FALSE")    )  ))
Truth: (stv 1.000000 0.000000)


thank you for your help and time!

Best,
Alex

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