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/verifythis/prefixsum_rec.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/verifythis/prefixsum_rec.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--multipleLoopsConfig.properties:ResourceLimitChecker.fromConfiguration, INFO) Using Restarting Algorithm (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CoreComponentsFactory.createAlgorithm, INFO) Loading analysis 1 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties': 'limits.time.cpu' has two values '900s' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties': 'limits.time.cpu::required' has two values '900' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 140s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 1 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-symbolicExecution.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 1 not completed. (line 19: Unsupported feature (recursion): upsweep(a, left - (space / 2), left); (line was originally upsweep(a,left-space/2,left);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 1 of 7 =============================== Total time for algorithm 1: 0.884s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 4.68 (sum: 1011, count: 216, min: 0, max: 11) Number of global variables per state: 0.00 (sum: 0, count: 216, min: 0, max: 0) Number of assumptions: 114 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 215 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.004s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 716 (count: 215, min: 0, max: 8, avg: 3.33) Symbolic values after refinement: 716 (count: 215, min: 0, max: 8, avg: 3.33) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.001s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 0.545s Time for SMT check: 0.380s Time for resolving definites: 0.030s Cache lookups: 108 Direct cache hits: 11 Direct cache lookup time: 0.001s Number of removed outdated constraints: 0 (count: 105, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.030s Constraints after refinement in state: 2248 (count: 215, min: 0, max: 20, avg: 10.46) Constraints before refinement in state: 2248 (count: 215, min: 0, max: 20, avg: 10.46) Time for constraints adjustment: 0.002s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.012s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 317, count: 327, min: 0, max: 1) [0 x 10, 1 x 317] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 208 Max size of waitlist: 10 Average size of waitlist: 5 Number of computed successors: 215 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: 0.706s (Max: 0.706s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.022s Time for transfer relation: 0.659s Time for stop operator: 0.009s Time for adding to reached set: 0.003s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 208 Max size of waitlist: 10 Average size of waitlist: 5 Number of computed successors: 215 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: 0.706s (Max: 0.706s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.022s Time for transfer relation: 0.659s Time for stop operator: 0.009s Time for adding to reached set: 0.003s 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--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-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--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-valueAnalysis-Cegar.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 2 not completed. (line 19: Unsupported feature (recursion): upsweep(a, left - (space / 2), left); (line was originally upsweep(a,left-space/2,left);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 0.056s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.00 (sum: 0, count: 43, min: 0, max: 0) Number of global variables per state: 0.00 (sum: 0, count: 43, min: 0, max: 0) Number of assumptions: 16 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 47 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.000s 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: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 69, count: 71, min: 0, max: 1) [0 x 2, 1 x 69] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 42 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 47 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 5 Number of times breaked: 0 Total time for CPA algorithm: 0.015s (Max: 0.015s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.000s Time for transfer relation: 0.004s Time for stop operator: 0.000s Time for adding to reached set: 0.006s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 0 Number of targets found: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for completing refinement: 0.000s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 42 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 47 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 5 Number of times breaked: 0 Total time for CPA algorithm: 0.015s (Max: 0.015s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.000s Time for transfer relation: 0.004s Time for stop operator: 0.000s Time for adding to reached set: 0.006s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 0 Number of targets found: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for completing refinement: 0.000s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 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--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-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--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-predicateAnalysis.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 3 not completed. (line 19: Unsupported feature (recursion): upsweep(a, left - (space / 2), left); (line was originally upsweep(a,left-space/2,left);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 0.174s PredicateCPA statistics ----------------------- Number of abstractions: 3 (5% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 3 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 0 (0%) Times precision was empty: 3 (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: 8 BDD entailment checks: 2 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 12 Avg ABE block size: 8.33 (sum: 25, count: 3, min: 3, max: 12) Number of predicates discovered: 0 Time for post operator: 0.048s Time for path formula creation: 0.048s Time for strengthen operator: 0.001s Time for prec operator: 0.001s Time for abstraction: 0.000s (Max: 0.000s, Count: 3) Solving time: 0.000s (Max: 0.000s) Model enumeration time: 0.000s Time for BDD construction: 0.000s (Max: 0.000s) Time for merge operator: 0.002s Time for coverage checks: 0.006s Time for BDD entailment checks: 0.006s Total time for SMT solver (w/o itp): 0.000s Number of path formula cache hits: 0 (0%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.046s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 202 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 6, 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: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 62, count: 64, min: 0, max: 1) [0 x 2, 1 x 62] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 36 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 25, min: 0, max: 0) CallstackSortedWaitlist: 11.00 (sum: 11, count: 1, min: 11, max: 11) Number of computed successors: 41 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 4 Number of times breaked: 0 Total time for CPA algorithm: 0.076s (Max: 0.076s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.001s Time for transfer relation: 0.059s Time for merge operator: 0.010s Time for stop operator: 0.003s Time for adding to reached set: 0.003s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 0 Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 CPA algorithm statistics ------------------------ Number of iterations: 36 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 25, min: 0, max: 0) CallstackSortedWaitlist: 11.00 (sum: 11, count: 1, min: 11, max: 11) Number of computed successors: 41 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 4 Number of times breaked: 0 Total time for CPA algorithm: 0.076s (Max: 0.076s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.001s Time for transfer relation: 0.059s Time for merge operator: 0.010s Time for stop operator: 0.003s Time for adding to reached set: 0.003s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 0 Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties:ResourceLimitChecker.fromConfiguration, INFO) Skipping recursive function call from downsweep to downsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties:InvariantsCPA:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Skipping recursive function call from upsweep to upsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties:InvariantsCPA:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-dataFlow.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 4 not completed. (line 19: Unsupported feature (recursion): upsweep(a, left - (space / 2), left); (line was originally upsweep(a,left-space/2,left);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 0.196s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 108, count: 114, min: 0, max: 1) [0 x 6, 1 x 108] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 101 Max size of waitlist: 6 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 17.00 (sum: 17, count: 1, min: 17, max: 17) Number of computed successors: 108 Max successors for one state: 2 Number of times merged: 6 Number of times stopped: 9 Number of times breaked: 0 Total time for CPA algorithm: 0.079s (Max: 0.079s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.063s Time for merge operator: 0.011s Time for stop operator: 0.003s Time for adding to reached set: 0.001s CPA algorithm statistics ------------------------ Number of iterations: 101 Max size of waitlist: 6 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 17.00 (sum: 17, count: 1, min: 17, max: 17) Number of computed successors: 108 Max successors for one state: 2 Number of times merged: 6 Number of times stopped: 9 Number of times breaked: 0 Total time for CPA algorithm: 0.079s (Max: 0.079s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.063s Time for merge operator: 0.011s Time for stop operator: 0.003s Time for adding to reached set: 0.001s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 5 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.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--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:PredicateCPA:PredicateCPA., INFO) Skipping recursive function call from downsweep to downsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Skipping recursive function call from upsweep to upsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) 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--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:InductionStepCase:PredicateCPA:PredicateCPA., INFO) Starting analysis 5 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Skipping recursive function call from downsweep to downsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Skipping recursive function call from upsweep to upsweep (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Creating formula for program (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:AbstractBMCAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoops-kInduction.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 5 not completed. (line 19: Unsupported feature (recursion): upsweep(a, left - (space / 2), left); (line was originally upsweep(a,left-space/2,left);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 5 of 7 =============================== Total time for algorithm 5: 0.135s PredicateCPA statistics ----------------------- Number of abstractions: 0 (0% of all post computations) Number of strengthen sat checks: 0 Number of coverage checks: 6 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 0 Avg ABE block size: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of predicates discovered: 0 Time for post operator: 0.012s Time for path formula creation: 0.012s Time for strengthen operator: 0.000s Time for prec operator: 0.000s Time for merge operator: 0.000s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.000s 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: 1 Maximum loop iteration reached: 2 ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.17 (sum: 10, count: 60, min: 0, max: 1) Number of global variables per state: 0.00 (sum: 0, count: 60, min: 0, max: 0) Number of assumptions: 16 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 62 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.000s 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: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 62, count: 64, min: 0, max: 1) [0 x 2, 1 x 62] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 58 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.11 (sum: 5, count: 47, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 47, min: 0, max: 0) LoopIterationSortedWaitlist: 0.11 (sum: 5, count: 47, min: 0, max: 3) CallstackSortedWaitlist: 11.00 (sum: 11, count: 1, min: 11, max: 11) Number of computed successors: 62 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 3 Number of times breaked: 0 Total time for CPA algorithm: 0.031s (Max: 0.031s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.026s Time for merge operator: 0.000s Time for stop operator: 0.001s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.032s CPA algorithm statistics ------------------------ Number of iterations: 58 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.11 (sum: 5, count: 47, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 47, min: 0, max: 0) LoopIterationSortedWaitlist: 0.11 (sum: 5, count: 47, min: 0, max: 3) CallstackSortedWaitlist: 11.00 (sum: 11, count: 1, min: 11, max: 11) Number of computed successors: 62 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 3 Number of times breaked: 0 Total time for CPA algorithm: 0.031s (Max: 0.031s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.026s Time for merge operator: 0.000s Time for stop operator: 0.001s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.032s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 6 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.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--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMPredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with BAMPredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMPredicateCPA:PredicateCPARefiner., INFO) Starting analysis 6 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:RestartAlgorithm.run, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, 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--multipleLoopsConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Error: Refinement failed: Interpolation failed in solver MATHSAT5 with message 'splitting of AB-mixed terms not supported'. (RefinementFailedException.forInterpolationFailureInSolver, SEVERE) Selection Algorithm statistics ------------------------------ Size of preliminary analysis reached set: 0 Used algorithm property: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--multipleLoopsConfig.properties Program containing only relevant bools: 0 Relevant boolean vars / relevant vars ratio: 0.0000 Requires alias handling: 0 Requires loop handling: 1 Has a single loop: 0 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: 12 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: 3.365s BAMCPA statistics ----------------- Number of blocks: 11 Max reached nesting level: 4 Time for building block partitioning: 0.010s Time for reducing abstract states: 0.005s Time for expanding abstract states: 0.009s Time for reducing precisions: 0.006s Time for expanding precisions: 0.012s Number of created nested algortihms: 39 Nesting level of target states with caching: 1.44 (#=16, min=0, max=4, hist=[0 x 5, 1 x 5, 2 x 2, 3 x 2, 4 x 2]) Nesting level of target states without caching: 4.00 (#=16, min=4, max=4, hist=[4 x 16]) BAM-based Refinement: Compute path for refinement: 0.010s Constructing flat ARG: 0.006s Searching path to error location: 0.004s Removing cached subtrees: 0.020s Number of refinements with a missing block: 0 Number of started refinements: 5 Number of spurious counterexamples: 4 Number of precise counterexamples: 0 Block statistics: Analyzed blocks: 10 Avg. time for block analysis: 0.330s Mean time for block analysis: 0.020s Min time for block analysis: 0.004s Max time for block analysis: 2.943s StdDev time for block analysis: 0.871s Total time for block analysis: 3.301s Time for main block: 2.943s ([N59]) BAMCache statistics ------------------- Total size of all ARGs: 380 (#=35, avg=10.86, dev=13.04, min=3, max=79) Total number of recursive CPA calls: 64 Number of cache misses: 35 (55% of all calls) Number of partial cache hits: 8 (13% of all calls) Number of full cache hits: 21 (33% of all calls) Time for checking equality of abstract states: 0.000s (Calls: 33) Time for computing the hashCode of abstract states: 0.001s (Calls: 102) ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.50 (sum: 1, count: 2, min: 0, max: 1) Number of global variables per state: 0.00 (sum: 0, count: 2, min: 0, max: 0) Number of assumptions: 132 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 542 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 PredicateCPA statistics ----------------------- Number of abstractions: 273 (58% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 82 (30%) Because of loop head: 50 (18%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 0 (0%) Times precision was empty: 127 (47%) Times precision was {false}: 27 (10%) Times result was cached: 3 (1%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 116 (42%) Times result was 'false': 6 (2%) Number of strengthen sat checks: 0 Number of coverage checks: 457 BDD entailment checks: 455 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 6 Avg ABE block size: 1.62 (sum: 443, count: 273, min: 0, max: 6) Number of predicates discovered: 14 Number of abstraction locations: 12 Max number of predicates per location: 6 Avg number of predicates per location: 2 Total predicates per abstraction: 409 Max number of predicates per abstraction: 6 Avg number of predicates per abstraction: 2.86 Number of irrelevant predicates: 136 (33%) Number of preds handled by boolean abs: 267 (65%) Total number of models for allsat: 215 Max number of models for allsat: 6 Avg number of models for allsat: 1.85 Time for post operator: 0.106s Time for path formula creation: 0.105s Time for strengthen operator: 0.000s Time for prec operator: 0.310s Time for abstraction: 0.297s (Max: 0.008s, Count: 273) Boolean abstraction: 0.148s Solving time: 0.124s (Max: 0.005s) Model enumeration time: 0.023s Time for BDD construction: 0.015s (Max: 0.001s) Time for merge operator: 0.000s Time for coverage checks: 0.005s Time for BDD entailment checks: 0.005s Total time for SMT solver (w/o itp): 0.147s Number of path formula cache hits: 560 (55%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.144s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 375 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 5, count: 2076, min: 0, max: 5) 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: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.99 (sum: 464, count: 469, min: 0, max: 1) [0 x 5, 1 x 464] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 5 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 5, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 5, min: 0, max: 0) Number of computed successors: 5 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 5 Total time for CPA algorithm: 0.575s (Max: 0.235s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.000s Time for transfer relation: 0.573s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 5 Number of finished refinement: 1 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 4 Number of finished refinement: 3 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 5 Number of targets found: 5 (count: 5, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.078s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 1 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.001s Number of interpolations: 1 Number of interpolation queries: 3 (count: 24, min: 0, max: 2, avg: 0.13) Size of interpolant: 0.13 (sum: 3, count: 24, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.006s Selecting infeasible sliced prefixes: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 4 Avg. length of target path (in blocks): 30.50 (sum: 122, count: 4, min: 29, max: 32) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 2.604s Path-formulas extraction: 0.053s Counterexample analysis: 2.533s (Max: 1.573s, Calls: 4) Refinement sat check: 0.242s Interpolant computation: 2.236s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.008s Precision update: 0.003s ARG update: 0.004s Length of refined path (in blocks): 16.33 (sum: 49, count: 3, min: 14, max: 18) Number of affected states: 37 (count: 3, min: 10, max: 14, avg: 12.33) Length (states) of path with itp 'true': 9 (count: 3, min: 3, max: 3, avg: 3.00) Length (states) of path with itp non-trivial itp: 37 (count: 3, min: 10, max: 14, avg: 12.33) Length (states) of path with itp 'false': 3 (count: 3, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 21 (count: 3, min: 4, max: 9, avg: 7.00) Equal non-trivial interpolants along paths: 13 (count: 3, min: 4, max: 5, avg: 4.33) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 5 Number of successful refinements: 4 Number of failed refinements: 1 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 3.296s Time for refinements: 2.721s Average time for refinement: 0.544s Max time for refinement: 1.593s CPA algorithm statistics ------------------------ Number of iterations: 5 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 5, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 5, min: 0, max: 0) Number of computed successors: 5 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 5 Total time for CPA algorithm: 0.575s (Max: 0.235s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.000s Time for transfer relation: 0.573s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 5 Number of finished refinement: 1 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 4 Number of finished refinement: 3 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 5 Number of targets found: 5 (count: 5, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.078s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 1 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.001s Number of interpolations: 1 Number of interpolation queries: 3 (count: 24, min: 0, max: 2, avg: 0.13) Size of interpolant: 0.13 (sum: 3, count: 24, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.006s Selecting infeasible sliced prefixes: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 4 Avg. length of target path (in blocks): 30.50 (sum: 122, count: 4, min: 29, max: 32) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 2.604s Path-formulas extraction: 0.053s Counterexample analysis: 2.533s (Max: 1.573s, Calls: 4) Refinement sat check: 0.242s Interpolant computation: 2.236s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.008s Precision update: 0.003s ARG update: 0.004s Length of refined path (in blocks): 16.33 (sum: 49, count: 3, min: 14, max: 18) Number of affected states: 37 (count: 3, min: 10, max: 14, avg: 12.33) Length (states) of path with itp 'true': 9 (count: 3, min: 3, max: 3, avg: 3.00) Length (states) of path with itp non-trivial itp: 37 (count: 3, min: 10, max: 14, avg: 12.33) Length (states) of path with itp 'false': 3 (count: 3, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 21 (count: 3, min: 4, max: 9, avg: 7.00) Equal non-trivial interpolants along paths: 13 (count: 3, min: 4, max: 5, avg: 4.33) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 5 Number of successful refinements: 4 Number of failed refinements: 1 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 3.296s Time for refinements: 2.721s Average time for refinement: 0.544s Max time for refinement: 1.593s CPAchecker general statistics ----------------------------- Number of program locations: 105 Number of CFA edges (per node): 124 (count: 105, min: 0, max: 3, avg: 1.18) Number of relevant variables: 31 Number of functions: 8 Number of loops (and loop nodes): 3 (sum: 13, min: 4, max: 5, avg: 4.33) Size of reached set: 2 Number of reached locations: 2 (2%) Avg states per location: 1 Max states per location: 1 (at node N7) Number of reached functions: 2 (25%) Number of target states: 1 Size of final wait list: 1 Time for analysis setup: 1.238s Time for loading CPAs: 0.392s Time for loading parser: 0.187s Time for CFA construction: 0.633s Time for parsing file(s): 0.300s Time for AST to CFA: 0.154s Time for CFA sanity check: 0.000s Time for post-processing: 0.129s Time for loop structure: 0.007s 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: 0.087s Time for collecting variables: 0.062s Time for solving dependencies: 0.000s Time for building hierarchy: 0.000s Time for building classification: 0.025s Time for exporting data: 0.000s Time for Analysis: 4.916s CPU time for analysis: 7.300s Total time for CPAchecker: 6.155s Total CPU time for CPAchecker: 9.690s Time for statistics: 0.038s Time for Garbage Collector: 0.061s (in 8 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--multipleLoopsConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".