Benchmark
non-incremental/QF_NRA/20200911-Pine/1599121863927725000.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:
x1' := x1 + 0.01 * x2
x2' := -0.01 * x1 + 0.99 * x2
Input ranges:
x1 in [0.0,1.0]
x2 in [0.0,1.0]
Invariant:
-1.0*x1 + -0.56*x2 + 0.91*x1^2 + 0.49*x1*x2 + 0.94*x2^2 <= 0.88
and
x1 in [-0.6,1.7]
x2 in [-1.0,1.0]
Query: Loop and Invariant and not Invariant'
| Benchmark |
|---|
| Size | 1948 |
| Compressed Size | 914 |
| 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 |
| Status | unknown |
| Inferred Status | unsat |
| Size | 1940 |
| Compressed Size | 925 |
| Max. Term Depth | 18 |
| 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 | 9 |
/ | 17 |
+ | 10 |
- | 9 |
* | 19 |
<= | 4 |
>= | 6 |
| | | |
Evaluations
| Evaluation |
Rating |
Solver |
Variant |
Result |
Wallclock |
CPU Time |
|
SMT-COMP 2021
|
0.40 (6/10) |
CVC4 |
CVC4-sq-final_default |
unsat ✅
|
16.14600
|
16.14320
|
| |
cvc5 |
cvc5-fixed_default |
unsat ✅
|
8.03756
|
8.03110
|
| |
Par4 |
Par4-wrapped-sq_default |
unsat ✅
|
0.05220
|
0.00622
|
| |
UltimateEliminator |
UltimateEliminator+MathSAT-5.6.6_default |
unknown ❌
|
1200.03000
|
1203.70000
|
| |
Vampire |
vampire_smt_4.6-fixed_vampire_smtcomp |
unsat ✅
|
0.18437
|
0.10696
|
| |
YicesQS |
yices-QS-2021-06-13under10_default |
unsat ✅
|
0.28090
|
0.28091
|
| |
Z3 |
z3-4.8.11_default |
unsat ✅
|
0.02523
|
0.02531
|
| |
|
z3-4.8.8_default |
unsat ✅
|
0.04177
|
0.04178
|
|
SMT-COMP 2025
|
0.17 (5/6) |
cvc5 |
cvc5 |
unsat ✅
|
0.31139
|
0.18339
|
| |
SMTInterpol |
SMTInterpol |
unknown ❌
|
0.43144
|
0.42405
|
| |
SMT-RAT |
SMT-RAT |
unsat ✅
|
0.29126
|
0.16447
|
| |
Yices2 |
Yices2 |
unsat ✅
|
0.33854
|
0.21172
|
| |
Z3alpha |
Z3-alpha |
unsat ✅
|
0.62094
|
0.53327
|
| |
Z3 |
Z3-alpha-base |
unsat ✅
|
0.32471
|
0.19342
|
| |
|
z3siri-base |
unsat ✅
|
0.30888
|
0.18013
|