Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121862060861000.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 + -0.32*x2 + 0.86*x1^2 + 0.19*x1*x2 + 0.68*x2^2 <= 0.49
 and
   x1 in [-0.4,1.4]
   x2 in [-0.9,1.0]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size1931
Compressed Size918
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
First Occurrence2021-07-18
Generated ByAnastasiia Izycheva, Eva Darulova
Generated On2020-09-11 00:00:00
GeneratorPine (using Z3 Python API)
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status unknown
Inferred Status sat
Size 1923
Compressed Size928
Max. Term Depth17
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and6 =2 let8
/19 +10 -9 *19
<=4 >=6

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2021 0.70 (3/10) CVC4 CVC4-sq-final_default unknown ❌ 37.19260 37.19050
cvc5 cvc5-fixed_default unknown ❌ 1200.01000 1199.97000
Par4 Par4-wrapped-sq_default sat ✅ 0.03314 0.01151
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.07000 1203.87000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unknown ❌ 1200.03000 4621.36000
YicesQS yices-QS-2021-06-13under10_default sat ✅ 0.07385 0.07390
Z3 z3-4.8.11_default sat ✅ 0.02168 0.02177
z3-4.8.8_default sat ✅ 0.03689 0.03692
SMT-COMP 2022 0.11 (8/9) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.05216 0.05269
MathSAT MathSAT-5.6.8_default unknown ❌ 1200.03000 1199.87000
NRA-LS NRA-LS-FINAL_default sat ✅ 0.06806 0.06815
Par4 Par4-wrapped-sq_default sat ✅ 0.03025 0.00923
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.04452 0.04450
veriT veriT+raSAT+Redlog_default sat ✅ 0.27469 0.27637
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.06357 0.06353
Z3 z3-4.8.17_default sat ✅ 0.02352 0.02541
Z3++ z3++0715_default sat ✅ 0.29037 0.29047
SMT-COMP 2023 cvc5 cvc5-default-2023-05-16-ea045f305_sq sat ✅ 0.02690 0.02749
NRA-LS cvc5-NRA-LS-sq_default sat ✅ 0.08069 0.08077
Par4 Par4-wrapped-sq_default sat ✅ 0.02146 0.00638
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.08390 0.08385
Yices2 Yices 2 for SMTCOMP 2023_default sat ✅ 0.04411 0.04406
Z3alpha z3alpha_default sat ✅ 0.02320 0.02346
Z3++ z3++0715_default sat ✅ 0.28950 0.28951
Z3++_sq_0526_default sat ✅ 0.29209 0.29214
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 sat ✅ 0.27576 0.17586
SMTInterpol SMTInterpol unknown ❌ 0.44787 0.46400
SMT-RAT SMT-RAT sat ✅ 0.25025 0.15042
Yices2 Yices2 sat ✅ 0.24493 0.14523
Z3alpha Z3-alpha sat ✅ 0.26817 0.16877