1 (** Why3 driver for CVC4 1.4 *)
3 prelude ";; produced by cvc4_14.drv ;;"
4 prelude "(set-logic AUFBVDTNIRA)"
7 UF : Uninterpreted Function
10 NIRA : NonLinear Integer+Real Arithmetic
13 import "smt-libv2.gen"
14 filename "%f-%t-%g.smt2"
16 import "smt-libv2-bv.gen"
18 import "discrimination.gen"
20 (* Performed introductions depending on whether counterexamples are
21 requested, as said by the meta "get_counterexmp". When this meta
22 set, this transformation introduces the model variables that are
23 still embedded in the goal. When it is not set, it removes all
24 these unused-ce-related variables, even in the context. *)
25 transformation "counterexamples_dependent_intros"
27 transformation "inline_trivial"
28 transformation "eliminate_builtin"
29 transformation "detect_polymorphism"
30 transformation "eliminate_definition"
31 (* We could keep more definitions by using
32 transformation "eliminate_definition_conditionally"
33 instead, but some proofs are lost
34 (examples/logic/triangle_inequality.why)
36 transformation "eliminate_inductive"
37 transformation "eliminate_epsilon"
38 transformation "eliminate_algebraic_if_poly"
39 transformation "eliminate_literal"
41 transformation "simplify_formula"
42 (*transformation "simplify_trivial_quantification"*)
44 transformation "discriminate_if_poly"
45 transformation "encoding_smt_if_poly"
47 (** Error messages specific to CVC4 *)
49 outofmemory "(error \".*out of memory\")"
50 outofmemory "CVC4 suffered a segfault"
51 outofmemory "CVC4::BVMinisat::OutOfMemoryException"
52 outofmemory "std::bad_alloc"
53 outofmemory "Cannot allocate memory"
54 timeout "interrupted by timeout"
55 steps "smt::SmtEngine::resourceUnitsUsed, \\([0-9]+.?[0-9]*\\)" 1
57 Unfortunately, there is no specific output message when CVC4 (<1.6) reaches its resource limit
58 steplimitexceeded "??"
61 (** Extra theories supported by CVC4 *)
64 CVC4 seems less efficient with its built-in implementation than
65 with the axiomatic version
68 theory int.EuclideanDivision
69 syntax function div "(div %1 %2)"
70 syntax function mod "(mod %1 %2)"