Benchmark

non-incremental/QF_NRA/20200911-Pine/1599122160501179000.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)

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

 Invariant:
   -0.84*u + 0.09*v + 1.0*u^2 + -0.09*u*v + 0.08*v^2 <= 1.07
 and
   u in [-0.4,1.6]
   v in [-3.9,3.0]

 Query: Loop and Invariant and not Invariant'

Benchmark
Size	1916
Compressed Size	928
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	1908
Compressed Size	932
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
/	20	+	10	-	10	*	20
<=	4	>=	6

Evaluations

Evaluation	Rating	Solver	Variant	Result	Wallclock	CPU Time
SMT-COMP 2021	0.60 (4/10)	CVC4	CVC4-sq-final_default	unknown ❌	208.57700	208.56500
		cvc5	cvc5-fixed_default	sat ✅	305.95000	305.91400
		Par4	Par4-wrapped-sq_default	sat ✅	0.01677	0.00621
		UltimateEliminator	UltimateEliminator+MathSAT-5.6.6_default	unknown ❌	1200.03000	1203.71000
		Vampire	vampire_smt_4.6-fixed_vampire_smtcomp	unknown ❌	1200.04000	4671.04000
		YicesQS	yices-QS-2021-06-13under10_default	sat ✅	0.03775	0.03778
		Z3	z3-4.8.11_default	sat ✅	0.01803	0.01810
			z3-4.8.8_default	sat ✅	0.03431	0.03432