Benchmark

non-incremental/FP/20200911-Pine/1599120911878125000.smt2

These benchmarks were generated while developing the tool Pine [1], which uses
CVC4/Z3 to check inductiveness of invariants. The work is described in [2].

[1] https://github.com/izycheva/pine
[2] A.Izycheva, E.Darulova, H.Seidl, SAS'20, "Counterexample- and Simulation-Guided Floating-Point Loop Invariant Synthesis"

 Loop:
   x' := x + 0.01 * (-2*x - 3*y + x*x) + rndx0
   y' := y + 0.01 * (x + y) + rndy0

 Input ranges:
   x in [0.0,0.1]
   y in [0.0,0.1]
   rndx0 in [-3.5e-08,3.5e-08]
   rndy0 in [-1.6e-08,1.6e-08]

 Invariant:
   -0.03*x + -0.11*y + 0.46*x^2 + 1.0*x*y + 0.86*y^2 <= 0.02
 and
   x in [-0.5,0.3]
   y in [-0.2,0.4]

 Query: Loop and Invariant and not Invariant'

Benchmark
Size	4866
Compressed Size	1410
License	Creative Commons Attribution 4.0 International (CC-BY-4.0)
Category	industrial
First Occurrence	2021-07-18
Generated By	Anastasiia Izycheva, Eva Darulova
Generated On	2020-09-11 00:00:00
Generator	Pine (using Z3 Python API)
Dolmen OK	1
strict Dolmen OK	1
check-sat calls	1

Query 1

Status	unknown
Inferred Status	None
Size	4858
Compressed Size	1433
Max. Term Depth	40
Asserts	1
Declared Functions	0
Declared Constants	6
Declared Sorts	0
Defined Functions	0
Defined Recursive Functions	0
Defined Sorts	0
Constants	0
Declared Datatypes	0

Symbols

not	1	and	6	let	36	fp	28
fp.add	14	fp.sub	1	fp.mul	21	fp.neg	1
fp.leq	14	fp.eq	2	roundNearestTiesToEven	36

Evaluations

Evaluation	Rating	Solver	Variant	Result	Wallclock	CPU Time
SMT-COMP 2023	1.00 (0/3)	Bitwuzla	Bitwuzla-fixed_default	unknown ❌	1200.03000	1200.02000
		cvc5	cvc5-default-2023-05-16-ea045f305_sq	unknown ❌	1200.11000	1196.71000
		UltimateEliminator	UltimateEliminator+MathSAT-5.6.9_default	unknown ❌	6.79373	4.29854
SMT-COMP 2025	0.67 (1/3)	Bitwuzla	Bitwuzla	sat ✅	935.89086	935.59889
		cvc5	cvc5	unknown ❌	1201.74647	1201.01347
		UltimateEliminator	UltimateEliminator+MathSAT	unknown ❌	1201.78727	1205.39060