Goal:
    n : Z  m : Z  comp : Gt = Eq  H : (m < n)%Z
  ============================
   (n <= m)%Z


DEBUG:Going to execute:
<coq-core.plugins.ltac::discriminate@0>
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 2: Backtrace:

Tactic failure:  Cannot find witness.
Level 3: Backtrace:

Tactic failure:  Cannot find witness.
Level 2: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.
Level 1: Backtrace:

Tactic failure:  Cannot find witness.
Level 0: Backtrace:

Tactic failure:  Cannot find witness.