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Conflicts:
	drivers/cvc4_bare.drv
	share/provers-detection-data.conf
	src/driver/driver_parser.mly
	src/printer/smtv2.ml

p labeled with label "model_projected" for that it exists a projection
function f creates declaration of new constant c and axiom stating that
c = f p

Projection functions are functions tagged with meta "model_projection".
Function f is projection function for abstract function and predicate p
if f is tagged with meta "model_projection" and has a single argument
of the same type as is the type of p.

This transformation is needed in situations when we want to display not
value of a variable, but value of a projection function applied to a variable.

Note that since Why3 supports namespaces (different projection functions
can have the same name) and input languages of solvers typically not,
Why3 renames projection functions to avoid name clashes.
This is why it is not possible to just store the name of the projection
function in a label and than query the solver directly for the value of
the projection.
Also, it means that this transformation should thus be executed before
this renaming.

A child process (e.g. CVC4) might catch SIGXCPU. If it gets stuck then, it
won't consume any additional cpu time, so the system won't forcibly kill
it. So why3-cpulimit has to kill it.

Note that, if the system is overloaded, why3-cpulimit might kill the child
process before it has even reached its cpu time limit. Hopefully, the 60'
additional time will suffice in practice.

+ fixed wrong step limit in one session

this is a first draft (with no Coq realization for the moment)
see the comment at the end of the file for discussion

Conflicts:
	drivers/smt-libv2.drv