Goal:
  
  G : t
  HG : acyclic_no_loop
  x : V.t
  y : V.t
  z : V.t
  e : EdgeOf x y
  p : PathOf y z
  IHp : weight p <= sweight (simplify2 p)
  F0 : false = true -> VSet.In x (snodes (simplify2 p))
  H1 : VSet.In x (snodes (simplify2 p)) -> False
  H0 : false = false
  ============================
   (e.π1 + weight p <= e.π1 + sweight (simplify2 p))


DEBUG:Going to execute:
<Coq.Init.Tauto.is_unit_or_eq> flags X1; Ltac.cut X2;
            [ intro; clear id
            | Ltac.cut X1; [ exact id | constructor 1; fail ] ]
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 2: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".
Level 1: Backtrace:

In environment
G : t
HG : acyclic_no_loop
x, y, z : V.t
e : EdgeOf x y
p : PathOf y z
IHp : weight p <= sweight (simplify2 p)
F0 : false = true -> VSet.In x (snodes (simplify2 p))
H1 : VSet.In x (snodes (simplify2 p)) -> False
H0 : false = false
Unable to unify "true" with "false".