Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121862350313000.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 + -0.3*x2 + 0.88*x1^2 + 0.15*x1*x2 + 0.77*x2^2 <= 0.59
 and
   x1 in [-0.4,1.5]
   x2 in [-0.9,1.0]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size1924
Compressed Size914
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 1916
Compressed Size927
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 ❌ 34.78150 34.77780
cvc5 cvc5-fixed_default unknown ❌ 1200.03000 1199.94000
Par4 Par4-wrapped-sq_default sat ✅ 0.02223 0.00835
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.04000 1203.63000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unknown ❌ 1200.07000 4680.42000
YicesQS yices-QS-2021-06-13under10_default sat ✅ 1.25578 1.25419
Z3 z3-4.8.11_default sat ✅ 0.02267 0.02277
z3-4.8.8_default sat ✅ 0.03716 0.03716
SMT-COMP 2022 0.11 (8/9) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.07436 0.07495
MathSAT MathSAT-5.6.8_default unknown ❌ 1200.02000 1199.98000
NRA-LS NRA-LS-FINAL_default sat ✅ 0.04577 0.04585
Par4 Par4-wrapped-sq_default sat ✅ 0.02059 0.00707
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.07284 0.07279
veriT veriT+raSAT+Redlog_default sat ✅ 0.28614 0.28930
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.03570 0.03569
Z3 z3-4.8.17_default sat ✅ 0.02132 0.02318
Z3++ z3++0715_default sat ✅ 0.28801 0.28806
SMT-COMP 2023 cvc5 cvc5-default-2023-05-16-ea045f305_sq sat ✅ 0.03877 0.03921
NRA-LS cvc5-NRA-LS-sq_default sat ✅ 0.19893 0.19900
Par4 Par4-wrapped-sq_default sat ✅ 0.01716 0.00630
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.05501 0.05497
Yices2 Yices 2 for SMTCOMP 2023_default sat ✅ 0.01240 0.01239
Z3alpha z3alpha_default sat ✅ 0.02497 0.02522
Z3++ z3++0715_default sat ✅ 0.28940 0.28951
Z3++_sq_0526_default sat ✅ 0.29677 0.29681
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 sat ✅ 0.29381 0.17144
SMTInterpol SMTInterpol unknown ❌ 0.47113 0.42917
SMT-RAT SMT-RAT sat ✅ 0.30014 0.17172
Yices2 Yices2 sat ✅ 0.30241 0.18607
Z3alpha Z3-alpha sat ✅ 0.60116 0.48578
Z3 Z3-alpha-base sat ✅ 0.30779 0.18814
z3siri-base sat ✅ 0.26668 0.14490