Benchmark

non-incremental/QF_NRA/20200911-Pine/1599122158622723000.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:
   -0.6*u + -0.02*v + 1.0*u^2 + 0.02*u*v + 0.03*v^2 <= 0.23
 and
   u in [0.0,0.9]
   v in [-2.5,3.0]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size1878
Compressed Size910
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 1870
Compressed Size922
Max. Term Depth16
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
/18 +10 -8 *20
<=4 >=6

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2021 0.50 (5/10) CVC4 CVC4-sq-final_default sat ✅ 0.26007 0.26039
cvc5 cvc5-fixed_default sat ✅ 0.45538 0.45600
Par4 Par4-wrapped-sq_default sat ✅ 0.02439 0.00617
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.06000 1203.60000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unknown ❌ 1200.02000 4643.92000
YicesQS yices-QS-2021-06-13under10_default sat ✅ 0.06762 0.06713
Z3 z3-4.8.11_default sat ✅ 0.01911 0.01915
z3-4.8.8_default sat ✅ 0.03454 0.03458
SMT-COMP 2022 0.11 (8/9) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.08300 0.08351
MathSAT MathSAT-5.6.8_default unknown ❌ 1200.06000 1199.96000
NRA-LS NRA-LS-FINAL_default sat ✅ 0.03481 0.03487
Par4 Par4-wrapped-sq_default sat ✅ 0.03223 0.00711
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.01764 0.01760
veriT veriT+raSAT+Redlog_default sat ✅ 0.01844 0.01734
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.02354 0.02347
Z3 z3-4.8.17_default sat ✅ 0.01942 0.02133
Z3++ z3++0715_default sat ✅ 0.28480 0.28485
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 sat ✅ 0.26776 0.15196
SMTInterpol SMTInterpol unknown ❌ 0.45100 0.44248
SMT-RAT SMT-RAT sat ✅ 0.28075 0.15856
Yices2 Yices2 sat ✅ 0.27295 0.15461
Z3alpha Z3-alpha sat ✅ 0.55782 0.44988
Z3 Z3-alpha-base sat ✅ 0.27537 0.15772
z3siri-base sat ✅ 0.29815 0.17170