cpachecker/bin/cpachecker --svcomp24 --heap 10000M --benchmark --option cpa.arg.yamlProofWitness=witness-%s.yml --option witness.yamlexporter.witnessVersions=V2d1,V2 --timelimit 900s --stats --spec sv-benchmarks/c/properties/unreach-call.prp --32 sv-benchmarks/c/nla-digbench/sqrt1-ll.c -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 10000M. Running CPAchecker with default stack size (1024k). Specify a larger value with --stack if needed. Language C detected and set for analysis (CPAMain.detectFrontendLanguageIfNecessary, INFO) Using the following resource limits: CPU-time limit of 900s (ResourceLimitChecker.fromConfiguration, INFO) CPAchecker 3.1-svn-5f8d539e99+ / svcomp24 (OpenJDK 64-Bit Server VM 17.0.9) started (CPAchecker.run, INFO) Parsing CFA from file(s) "sv-benchmarks/c/nla-digbench/sqrt1-ll.c" (CPAchecker.parse, INFO) Using heuristics to select analysis (CoreComponentsFactory.createAlgorithm, INFO) The following configuration options were specified but are not used: cpa.callstack.unsupportedFunctions termination.violation.witness cpa.predicate.memoryAllocationsAlwaysSucceed cpa.arg.compressWitness cpa.arg.yamlProofWitness cpa.callstack.skipFunctionPointerRecursion counterexample.export.yaml cpa.composite.aggregateBasicBlocks counterexample.export.graphml counterexample.export.compressWitness cpa.arg.proofWitness witness.yamlexporter.witnessVersions (CPAchecker.printConfigurationWarnings, WARNING) Starting analysis ... (CPAchecker.runAlgorithm, INFO) Performing heuristic ... (SelectionAlgorithm.chooseConfig, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ResourceLimitChecker.fromConfiguration, INFO) Using Restarting Algorithm (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:CoreComponentsFactory.createAlgorithm, INFO) Loading analysis 1 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu' has two values '900s' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu::required' has two values '900' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 140s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 1 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 1 stopped. (The CPU-time limit of 140s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 1 of 7 =============================== Total time for algorithm 1: 133.754s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 4.41 (sum: 226011, count: 51305, min: 0, max: 5) Number of global variables per state: 0.00 (sum: 0, count: 51305, min: 0, max: 0) Number of assumptions: 36050 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 51304 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.040s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 49917 (count: 51304, min: 0, max: 1, avg: 0.97) Symbolic values after refinement: 49917 (count: 51304, min: 0, max: 1, avg: 0.97) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.001s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 101.206s Time for SMT check: 74.717s Time for resolving definites: 12.580s Cache lookups: 19409 Direct cache hits: 16634 Direct cache lookup time: 0.188s Number of removed outdated constraints: 0 (count: 11093, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 4.262s Constraints after refinement in state: 35568228 (count: 51304, min: 0, max: 1387, avg: 693.28) Constraints before refinement in state: 35568228 (count: 51304, min: 0, max: 1387, avg: 693.28) Time for constraints adjustment: 5.079s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.059s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 54093, count: 54093, min: 1, max: 1) [1 x 54093] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 51303 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 51304 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 133.607s (Max: 133.607s) Time for choose from waitlist: 0.020s Time for precision adjustment: 5.326s Time for transfer relation: 107.497s Time for stop operator: 20.524s Time for adding to reached set: 0.085s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 51303 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 51304 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 133.607s (Max: 133.607s) Time for choose from waitlist: 0.020s Time for precision adjustment: 5.326s Time for transfer relation: 107.497s Time for stop operator: 20.524s Time for adding to reached set: 0.085s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 2 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 56.123s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 3.50 (sum: 609579, count: 174169, min: 0, max: 4) Number of global variables per state: 0.00 (sum: 0, count: 174169, min: 0, max: 0) Number of assumptions: 125792 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 179032 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.118s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.116s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 188753, count: 188753, min: 1, max: 1) [1 x 188753] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 174193 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 179032 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 4836 Number of times breaked: 2 Total time for CPA algorithm: 56.026s (Max: 56.012s) Time for choose from waitlist: 0.204s Time for precision adjustment: 0.292s Time for transfer relation: 1.103s Time for stop operator: 53.970s Time for adding to reached set: 0.277s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 2 Number of targets found: 2 (count: 2, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.037s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.007s Number of interpolations: 2 Number of interpolation queries: 32 (count: 19, min: 0, max: 3, avg: 1.68) Size of interpolant: 1.37 (sum: 26, count: 19, min: 0, max: 2) Number of sliced prefixes: 2 (count: 2, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.008s Selecting infeasible sliced prefixes: 0.002s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 2 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 18 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 15.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 56.081s Time for refinements: 0.055s Average time for refinement: 0.027s Max time for refinement: 0.040s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 174193 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 179032 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 4836 Number of times breaked: 2 Total time for CPA algorithm: 56.026s (Max: 56.012s) Time for choose from waitlist: 0.204s Time for precision adjustment: 0.292s Time for transfer relation: 1.103s Time for stop operator: 53.970s Time for adding to reached set: 0.277s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 2 Number of targets found: 2 (count: 2, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.037s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.007s Number of interpolations: 2 Number of interpolation queries: 32 (count: 19, min: 0, max: 3, avg: 1.68) Size of interpolant: 1.37 (sum: 26, count: 19, min: 0, max: 2) Number of sliced prefixes: 2 (count: 2, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.008s Selecting infeasible sliced prefixes: 0.002s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 2 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 18 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 15.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 56.081s Time for refinements: 0.055s Average time for refinement: 0.027s Max time for refinement: 0.040s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant) and JFactory 1.21. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 3 stopped. (The CPU-time limit of 200s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 199.835s PredicateCPA statistics ----------------------- Number of abstractions: 45 (13% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 11 (24%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 34 (76%) Times precision was empty: 4 (9%) Times precision was {false}: 32 (71%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 9 (20%) Times result was 'false': 27 (60%) Number of strengthen sat checks: 0 Number of coverage checks: 14 BDD entailment checks: 14 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 13 Avg ABE block size: 6.76 (sum: 304, count: 45, min: 2, max: 13) Number of predicates discovered: 9 Number of abstraction locations: 2 Max number of predicates per location: 7 Avg number of predicates per location: 4 Total predicates per abstraction: 75 Max number of predicates per abstraction: 7 Avg number of predicates per abstraction: 1.83 Number of irrelevant predicates: 32 (43%) Number of preds handled by boolean abs: 43 (57%) Total number of models for allsat: 9 Max number of models for allsat: 1 Avg number of models for allsat: 1.00 Time for post operator: 0.028s Time for path formula creation: 0.026s Time for strengthen operator: 0.000s Time for prec operator: 0.095s Time for abstraction: 0.089s (Max: 0.025s, Count: 45) Boolean abstraction: 0.008s Solving time: 0.029s (Max: 0.021s) Model enumeration time: 0.003s Time for BDD construction: 0.003s (Max: 0.003s) Time for coverage checks: 0.000s Time for BDD entailment checks: 0.000s Total time for SMT solver (w/o itp): 0.032s Number of path formula cache hits: 204 (58%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.025s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 302 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 340, min: 0, max: 0) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.004s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 342, count: 342, min: 1, max: 1) [1 x 342] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 270 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 178, min: 0, max: 0) CallstackSortedWaitlist: 38.86 (sum: 272, count: 7, min: 2, max: 92) Number of computed successors: 304 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 7 Total time for CPA algorithm: 0.153s (Max: 0.036s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.096s Time for transfer relation: 0.049s Time for merge operator: 0.002s Time for stop operator: 0.000s Time for adding to reached set: 0.002s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.007s Time for path feasibility check: 0.003s Time for predicate extraction from CFA: 0.004s Time for ARG update: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 6 Avg. length of target path (in blocks): 3.00 (sum: 18, count: 6, min: 2, max: 4) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 199.588s Path-formulas extraction: 0.000s Counterexample analysis: 199.579s (Max: 199.226s, Calls: 7) Refinement sat check: 199.500s Interpolant computation: 0.004s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.002s Precision update: 0.002s ARG update: 0.002s Length of refined path (in blocks): 2.80 (sum: 14, count: 5, min: 2, max: 4) Number of affected states: 7 (count: 5, min: 1, max: 2, avg: 1.40) Length (states) of path with itp 'true': 2 (count: 5, min: 0, max: 2, avg: 0.40) Length (states) of path with itp non-trivial itp: 7 (count: 5, min: 1, max: 2, avg: 1.40) Length (states) of path with itp 'false': 0 (count: 5, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 2 (count: 5, min: 0, max: 1, avg: 0.40) Equal non-trivial interpolants along paths: 0 (count: 5, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 7 Number of successful refinements: 6 Number of failed refinements: 0 Max. size of reached set before ref.: 116 Max. size of reached set after ref.: 101 Avg. size of reached set before ref.: 56.00 Avg. size of reached set after ref.: 19.00 Total time for CEGAR algorithm: 199.749s Time for refinements: 199.596s Average time for refinement: 28.513s Max time for refinement: 199.227s CPA algorithm statistics ------------------------ Number of iterations: 270 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 178, min: 0, max: 0) CallstackSortedWaitlist: 38.86 (sum: 272, count: 7, min: 2, max: 92) Number of computed successors: 304 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 7 Total time for CPA algorithm: 0.153s (Max: 0.036s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.096s Time for transfer relation: 0.049s Time for merge operator: 0.002s Time for stop operator: 0.000s Time for adding to reached set: 0.002s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.007s Time for path feasibility check: 0.003s Time for predicate extraction from CFA: 0.004s Time for ARG update: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 6 Avg. length of target path (in blocks): 3.00 (sum: 18, count: 6, min: 2, max: 4) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 199.588s Path-formulas extraction: 0.000s Counterexample analysis: 199.579s (Max: 199.226s, Calls: 7) Refinement sat check: 199.500s Interpolant computation: 0.004s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.002s Precision update: 0.002s ARG update: 0.002s Length of refined path (in blocks): 2.80 (sum: 14, count: 5, min: 2, max: 4) Number of affected states: 7 (count: 5, min: 1, max: 2, avg: 1.40) Length (states) of path with itp 'true': 2 (count: 5, min: 0, max: 2, avg: 0.40) Length (states) of path with itp non-trivial itp: 7 (count: 5, min: 1, max: 2, avg: 1.40) Length (states) of path with itp 'false': 0 (count: 5, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 2 (count: 5, min: 0, max: 1, avg: 0.40) Equal non-trivial interpolants along paths: 0 (count: 5, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 7 Number of successful refinements: 6 Number of failed refinements: 0 Max. size of reached set before ref.: 116 Max. size of reached set after ref.: 101 Avg. size of reached set before ref.: 56.00 Avg. size of reached set after ref.: 19.00 Total time for CEGAR algorithm: 199.749s Time for refinements: 199.596s Average time for refinement: 28.513s Max time for refinement: 199.227s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 4 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 49.461s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.075s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 53100, count: 53100, min: 1, max: 1) [1 x 53100] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 51704 Max size of waitlist: 2 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 8379.00 (sum: 8379, count: 1, min: 8379, max: 8379) Number of computed successors: 53100 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 1395 Number of times breaked: 0 Total time for CPA algorithm: 49.379s (Max: 49.379s) Time for choose from waitlist: 0.034s Time for precision adjustment: 0.079s Time for transfer relation: 3.382s Time for merge operator: 34.512s Time for stop operator: 11.120s Time for adding to reached set: 0.130s CPA algorithm statistics ------------------------ Number of iterations: 51704 Max size of waitlist: 2 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 8379.00 (sum: 8379, count: 1, min: 8379, max: 8379) Number of computed successors: 53100 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 1395 Number of times breaked: 0 Total time for CPA algorithm: 49.379s (Max: 49.379s) Time for choose from waitlist: 0.034s Time for precision adjustment: 0.079s Time for transfer relation: 3.382s Time for merge operator: 34.512s Time for stop operator: 11.120s Time for adding to reached set: 0.130s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 5 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:PredicateCPA:PredicateCPA., INFO) Starting analysis 5 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Adjusting maxLoopIterations to 2 (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:LoopBoundCPA:LoopBoundPrecisionAdjustment.nextState, INFO) Shutdown requested (The JVM is shutting down, probably because Ctrl+C was pressed.), waiting for termination. (ForceTerminationOnShutdown$1.shutdownRequested, WARNING) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties' because condition if-recursive did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties' because condition if-concurrent did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Warning: Analysis interrupted (The JVM is shutting down, probably because Ctrl+C was pressed.) (ShutdownNotifier.shutdownIfNecessary, WARNING) Selection Algorithm statistics ------------------------------ Size of preliminary analysis reached set: 0 Used algorithm property: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties Program containing only relevant bools: 0 Relevant boolean vars / relevant vars ratio: 0.1250 Requires alias handling: 0 Requires loop handling: 1 Has a single loop: 1 Requires composite-type handling: 0 Requires array handling: 0 Requires float handling: 0 Requires recursion handling: 0 Relevant addressed vars / relevant vars ratio: 0.0000 Program containing external functions: true Number of all righthand side functions: 4 Restart Algorithm statistics ---------------------------- Number of algorithms provided: 7 Number of algorithms used: 7 Last algorithm used: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties Total time for algorithm 7: 434.709s PredicateCPA statistics ----------------------- Number of abstractions: 16 (11% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 4 (25%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 12 (75%) Times precision was empty: 16 (100%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 0 (0%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 2 trivial: 0 cached: 0 Max ABE block size: 13 Avg ABE block size: 8.00 (sum: 128, count: 16, min: 2, max: 13) Number of predicates discovered: 0 Time for post operator: 0.013s Time for path formula creation: 0.013s Time for strengthen operator: 0.000s Time for prec operator: 0.000s Time for abstraction: 0.000s (Max: 0.000s, Count: 16) Solving time: 0.000s (Max: 0.000s) Model enumeration time: 0.000s Time for BDD construction: 0.000s (Max: 0.000s) Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.002s Total number of created targets for pointer analysis: 0 KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- Bounds CPA statistics --------------------- Bound k: 2 Maximum loop iteration reached: 3 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.005s Automaton transfers with branching: 0 Automaton transfer successors: 0.92 (sum: 133, count: 145, min: 0, max: 1) [0 x 12, 1 x 133] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 135 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.36 (sum: 36, count: 99, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 99, min: 0, max: 0) LoopIterationSortedWaitlist: 0.36 (sum: 36, count: 99, min: 0, max: 6) CallstackSortedWaitlist: 27.00 (sum: 54, count: 2, min: 18, max: 36) Number of computed successors: 133 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.040s (Max: 0.025s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.005s Time for transfer relation: 0.026s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.042s Time for final sat check: 434.494s Time for bounding assertions check: 0.004s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 135 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.36 (sum: 36, count: 99, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 99, min: 0, max: 0) LoopIterationSortedWaitlist: 0.36 (sum: 36, count: 99, min: 0, max: 6) CallstackSortedWaitlist: 27.00 (sum: 54, count: 2, min: 18, max: 36) Number of computed successors: 133 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.040s (Max: 0.025s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.005s Time for transfer relation: 0.026s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.042s Time for final sat check: 434.494s Time for bounding assertions check: 0.004s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 52 Number of CFA edges (per node): 60 (count: 52, min: 0, max: 6, avg: 1.15) Number of relevant variables: 8 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 9, min: 9, max: 9, avg: 9.00) Size of reached set: 127 Number of reached locations: 40 (77%) Avg states per location: 3 Max states per location: 12 (at node N10) Number of reached functions: 3 (75%) Number of target states: 6 Time for analysis setup: 1.106s Time for loading CPAs: 0.356s Time for loading parser: 0.201s Time for CFA construction: 0.509s Time for parsing file(s): 0.267s Time for AST to CFA: 0.111s Time for CFA sanity check: 0.000s Time for post-processing: 0.087s Time for loop structure: 0.005s Time for AST structure: 0.000s Time for function pointers resolving: 0.003s Function calls via function pointers: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer calls: 0 (count: 1, min: 0, max: 0, avg: 0.00) Function calls with function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Time for classifying variables: 0.050s Time for collecting variables: 0.030s Time for solving dependencies: 0.000s Time for building hierarchy: 0.000s Time for building classification: 0.020s Time for exporting data: 0.000s Time for Analysis: 874.306s CPU time for analysis: 897.320s Total time for CPAchecker: 875.418s Total CPU time for CPAchecker: 899.430s Time for statistics: 0.023s Time for Garbage Collector: 3.955s (in 164 runs) Garbage Collector(s) used: G1 Old Generation, G1 Young Generation Verification result: UNKNOWN, incomplete analysis. Exporting witnesses in Version 2.1 is currently WIP. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ARGCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".