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command "search" and transformations taking idents as arguments now can
support qualified idents and infix symbols.

For example, "search (+) (*)" returns the distributivity axioms

FIXME: "search Int.(+)" fails, probably missing namespaced for
imported modules

Also typo.

given names that already exists.

intros_n to be fixed.

We do not record anymore the map id_decl in naming_tables

names_table renamed into naming_table, seems better to me

this required to add an extra boolean argument to the Get_task request

Do not work on a lot of definitions of the language.

This ongoing modification should not change the current behaviour.

that stderr is not stdout.

is indicated by the error.

Changes in constructor Transf_error to add arguments: transformation,
location and specific argument.
Changes in callback for transformations because we need to pass the
information of the transformation name/arguments.

This is done by removing the extra parentheses fron the syntax rules
of the why3_itp driver, and modify the why3_itp printer to add parentheses
when risk of ambiguity occurs.

This does not remove all useless parentheses, but it is already much
better than before

Conflicts:
	src/core/model_parser.ml
	src/transform/eliminate_algebraic.ml

* time limit set to 1 sec. Quicker, and results are the same !

* use Stdlib whenever possible

* FIXME: the use of StringMap.bindings should not be useful, and wastes time and memory

problems illustrated by the example committed.

Trying to put second assert before use_th reports a parsing/typing error
that cannot be understood by a normal user (in my opinion).

of having everything in case.ml.

otherwise, superfluous diff may show up

also be used.

this allows to remove them using clean or remove
in other words, in the session data structure, a result None now
really means that a prover is in progress

Formerly we only parsed elements of float values as decimals when they can
be hexadecimal.

* src/driver/parse_smtv2_model_lexer.mll
(float_num): Now takes hexadecimal number instead of decimal numbers.

Change-Id: Ie3c4e3452c7cb68af8767d2859bfbb4bb90e607e

This commit adds parsing for boolean expression and floating point value
which are returned by z3 on the last version. This adds floating point
values in the collected data and JSON printed data. This does not add
boolean expressions because it does not add information.
Also added transformation eliminate epsilon in driver for Z3 ce.

* drivers/z3_gnatprove_ce.drv
(eliminate_epsilon): Added transformation eliminate epsilon in driver for
counterex for z3.

* src/core/model_parser.ml
(float_type): Added a float_type and functions to send it as JSON data.

* src/driver/collect_data_model.ml
(convert_array_value): Explicit matching for error handling when adding
constructs.
(convert_float): Dummy conversion of float_type to avoid circular
dependency.

* src/driver/parse_smtv2_model_lexer.mll
(token): Adding z3 specific boolean expressions. Also adding a way to
parse all floating point value including those we don't want to print
because we need to parse them even if we don't want to print them.

* src/driver/parse_smtv2_model_parser.mly
(smt_term): Adding floating point value case which is handled in the lexer.
Added boolean_expression case.

* src/driver/smt2_model_defs.ml
(float_type): Adding a duplicated float_type for dependencies reasons.
(print_float): Debugging print of float_type.
(): Adding cases for float in remaining functions.

Change-Id: I5baee2880a9843f0fec61b1bf3edb2a2f3e54bd1

This commits allows printing of arrays which have indices typed as
bitvectors.

* src/driver/collect_data_model.ml
(convert_to_indice): Add bitvector case.

Change-Id: Iafe10e5e6cd1aab0a3e023aeb69df03fde8880e8