Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121903663628000.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:
   u' := u + 0.01 * v
   v' := v + 0.01 * (-0.5 * v - 9.81 * (u - (u*u*u)/6.0 + (u*u*u*u*u)/120.0))

 Input ranges:
   u in [0.0,0.0]
   v in [2.0,3.0]

 Invariant:
   -0.16*u + -0.02*v + 1.0*u^2 + 0.04*u*v + 0.11*v^2 <= 1.22
 and
   u in [-1.1,1.2]
   v in [-3.3,3.4]

 Query: Loop and Invariant and not Invariant'

Benchmark
Size	2034
Compressed Size	979
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	sat
Size	2026
Compressed Size	985
Max. Term Depth	16
Asserts	1
Declared Functions	0
Declared Constants	4
Declared Sorts	0
Defined Functions	0
Defined Recursive Functions	0
Defined Sorts	0
Constants	0
Declared Datatypes	0

Symbols

not	1	and	6	=	2	let	8
/	24	+	11	-	11	*	26
<=	4	>=	6

Evaluations

Evaluation	Rating	Solver	Variant	Result	Wallclock	CPU Time
SMT-COMP 2022	0.33 (6/9)	cvc5	cvc5-default-2022-07-02-b15e116-wrapped_sq	sat ✅	963.24400	962.28300
		MathSAT	MathSAT-5.6.8_default	unknown ❌	1200.03000	1199.94000
		NRA-LS	NRA-LS-FINAL_default	unknown ❌	1170.07000	1169.96000
		Par4	Par4-wrapped-sq_default	sat ✅	0.12396	0.00622
		SMT-RAT	SMT-RAT-MCSAT_default	sat ✅	5.27407	5.27406
		veriT	veriT+raSAT+Redlog_default	unknown ❌	0.01072	0.00829
		Yices2	Yices 2.6.2 for SMTCOMP 2021_default	sat ✅	0.12812	0.12808
		Z3	z3-4.8.17_default	sat ✅	0.11495	0.11684
		Z3++	z3++0715_default	sat ✅	0.37538	0.37539