Many warnings and void output for gnatprove from the Alire community index

[mgrojo]

Describe the bug
The only output with most of the switches are warnings.

To Reproduce
Steps to reproduce the behavior:

alr get vaton
cd vaton_*/
alr build
alr gnatprove
alr exec -P -- run_spat -s

Expected Behavior
Output like the examples in the documentation.

Console Output
If applicable, add output log from the tool, preferably with the --verbose option enabled.

Debug: GNAT project loaded in 73.2 ms.
Debug: Found "spark_unbound-arrays.adb"...Debug: "spark_unbound-arrays.spark" added to index.
Debug: Found "spark_unbound-arrays.ads"...Debug: "spark_unbound-arrays.spark" already in index.
Debug: Found "spark_unbound-safe_alloc.adb"...Debug: "spark_unbound-safe_alloc.spark" added to index.
Debug: Found "spark_unbound-safe_alloc.ads"...Debug: "spark_unbound-safe_alloc.spark" already in index.
Debug: Found "spark_unbound.ads"...Debug: "spark_unbound.spark" added to index.
Debug: Found "vaton_config.ads"...Debug: "vaton_config.spark" added to index.
Debug: Found "vaton-float_conversions.adb"...Debug: "vaton-float_conversions.spark" added to index.
Debug: Found "vaton-float_conversions.ads"...Debug: "vaton-float_conversions.spark" already in index.
Debug: Found "vaton-integer_conversions.adb"...Debug: "vaton-integer_conversions.spark" added to index.
Debug: Found "vaton-integer_conversions.ads"...Debug: "vaton-integer_conversions.spark" already in index.
Debug: Found "vaton.adb"...Debug: "vaton.spark" added to index.
Debug: Found "vaton.ads"...Debug: "vaton.spark" already in index.
Debug: Search completed in 829.2 µs, 7 files found.
Debug: Using up to 4 parsing threads.
Debug: Queuing "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound.spark"...
Debug: Queuing "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton-integer_conversions.spark"...
Debug: Queuing "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton_config.spark"...
Debug: Queuing "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton-float_conversions.spark"...
Debug: Queuing "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound-safe_alloc.spark"...
Debug: Queuing "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton.spark"...
Debug: Queuing "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound-arrays.spark"...
Debug: Picking up results...
Debug: "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton_config.spark"...ok.
Debug: "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound.spark"...ok.
Debug: "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound-safe_alloc.spark"...ok.
Debug: "/home/mgr/.local/share/alire/builds/spark_unbound_0.2.1_1f8dae01/780397e81eb867a3309ee1c923c9564fb9400fd7e56bbee7390685b246f004ec/obj/gnatprove/spark_unbound-arrays.spark"...ok.
Debug: "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton-integer_conversions.spark"...ok.
Debug: "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton-float_conversions.spark"...ok.
Debug: "/home/mgr/src/alire/vaton_0.1.0_c07eed4c/obj/development/gnatprove/vaton.spark"...ok.
Debug: Parsing completed in 63.6 ms.
Debug: Detected file version of "spark_unbound.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "vaton-integer_conversions.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
[Repeats many times]
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "vaton_config.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "vaton-float_conversions.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
[Repeats many times]
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "spark_unbound-safe_alloc.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "vaton.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
[Repeats many times]
Warning: Field "entity" not of expected type "JSON_OBJECT_TYPE"!
Warning: Expected field "flow analysis" not present!
Debug: Detected file version of "spark_unbound-arrays.spark" is GNAT_CE_2020.
Warning: Field "spark" not of expected type "JSON_ARRAY_TYPE"!
Warning: Expected field "flow" not present!
Warning: Expected field "proof" not present!
Warning: Expected field "flow analysis" not present!
Debug: Reading completed in 4.2 ms.
Debug: Collecting files completed in 141.9 ms.
Debug: Cut off point set to 0.0 s.
spark_unbound.spark             => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
vaton-integer_conversions.spark => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
vaton_config.spark              => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
vaton-float_conversions.spark   => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
spark_unbound-safe_alloc.spark  => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
vaton.spark                     => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)
spark_unbound-arrays.spark      => (Flow  => 0.0 s,
                                    Proof => 0.0 s (0 steps)/0.0 s (0 steps)/0.0 s)

Additional Context
Is the tool maybe incompatible with the files produced by gnatprove from the Alire community (version 14.1.1).