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-scaling/geo2-ll_unwindbound1.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-scaling/geo2-ll_unwindbound1.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: 140.161s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 6.68 (sum: 167, count: 25, min: 0, max: 8) Number of global variables per state: 0.92 (sum: 23, count: 25, min: 0, max: 1) Number of assumptions: 15 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 24 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 66 (count: 24, min: 0, max: 5, avg: 2.75) Symbolic values after refinement: 66 (count: 24, min: 0, max: 5, avg: 2.75) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 139.964s Time for SMT check: 139.911s Time for resolving definites: 0.004s Cache lookups: 10 Direct cache hits: 4 Direct cache lookup time: 0.000s Number of removed outdated constraints: 0 (count: 9, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.007s Constraints after refinement in state: 31 (count: 24, min: 0, max: 2, avg: 1.29) Constraints before refinement in state: 31 (count: 24, min: 0, max: 2, avg: 1.29) Time for constraints adjustment: 0.000s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.005s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 49, count: 49, min: 1, max: 1) [1 x 49] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 24 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 24 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: 140.013s (Max: 140.013s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.010s Time for transfer relation: 139.999s Time for stop operator: 0.000s Time for adding to reached set: 0.002s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 24 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 24 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: 140.013s (Max: 140.013s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.010s Time for transfer relation: 139.999s Time for stop operator: 0.000s Time for adding to reached set: 0.002s 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) Error path found, starting counterexample check with CPACHECKER. (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:CounterexampleCheckAlgorithm.checkCounterexample, 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-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Error path found but identified as infeasible. (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:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Infeasible counterexample found, but could not remove it from the ARG. Therefore, we cannot prove safety. (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:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, WARNING) Error path found, starting counterexample check with CPACHECKER. (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:CounterexampleCheckAlgorithm.checkCounterexample, 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-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Error path found but identified as infeasible. (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:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Another infeasible counterexample found which could not be removed from the ARG. (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:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, INFO) Error path found, starting counterexample check with CPACHECKER. (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:CounterexampleCheckAlgorithm.checkCounterexample, 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-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., 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: 59.389s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 1.79 (sum: 61, count: 34, min: 0, max: 2) Number of global variables per state: 0.94 (sum: 32, count: 34, min: 0, max: 1) Number of assumptions: 20 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 52 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.001s 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: 0.006s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 93, count: 93, min: 1, max: 1) [1 x 93] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 47 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 52 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 4 Total time for CPA algorithm: 0.021s (Max: 0.007s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.004s Time for transfer relation: 0.012s Time for stop operator: 0.001s Time for adding to reached set: 0.003s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.060s 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: 0.004s Number of interpolations: 1 Number of interpolation queries: 7 (count: 5, min: 0, max: 4, avg: 1.40) Size of interpolant: 0.60 (sum: 3, count: 5, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.004s Selecting infeasible sliced prefixes: 0.001s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 34 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 22.50 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.096s Time for refinements: 0.074s Average time for refinement: 0.018s Max time for refinement: 0.028s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 3 Number of infeasible paths: 2 (67%) Time for counterexample checks: 59.261s CPA algorithm statistics ------------------------ Number of iterations: 47 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 52 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 4 Total time for CPA algorithm: 0.021s (Max: 0.007s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.004s Time for transfer relation: 0.012s Time for stop operator: 0.001s Time for adding to reached set: 0.003s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.060s 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: 0.004s Number of interpolations: 1 Number of interpolation queries: 7 (count: 5, min: 0, max: 4, avg: 1.40) Size of interpolant: 0.60 (sum: 3, count: 5, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.004s Selecting infeasible sliced prefixes: 0.001s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 34 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 22.50 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.096s Time for refinements: 0.074s Average time for refinement: 0.018s Max time for refinement: 0.028s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 3 Number of infeasible paths: 2 (67%) Time for counterexample checks: 59.261s 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: 200.250s PredicateCPA statistics ----------------------- Number of abstractions: 15 (10% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 6 (40%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 9 (60%) Times precision was empty: 4 (27%) Times precision was {false}: 7 (47%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 4 (27%) Times result was 'false': 5 (33%) Number of strengthen sat checks: 0 Number of coverage checks: 10 BDD entailment checks: 4 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 11 Avg ABE block size: 7.73 (sum: 116, count: 15, min: 5, max: 11) Number of predicates discovered: 6 Number of abstraction locations: 2 Max number of predicates per location: 4 Avg number of predicates per location: 2 Total predicates per abstraction: 19 Max number of predicates per abstraction: 4 Avg number of predicates per abstraction: 1.73 Number of irrelevant predicates: 7 (37%) Number of preds handled by boolean abs: 12 (63%) Total number of models for allsat: 8 Max number of models for allsat: 3 Avg number of models for allsat: 2.00 Time for post operator: 0.010s Time for path formula creation: 0.009s Time for strengthen operator: 0.000s Time for prec operator: 0.148s Time for abstraction: 0.146s (Max: 0.049s, Count: 15) Boolean abstraction: 0.009s Solving time: 0.113s (Max: 0.042s) Model enumeration time: 0.005s Time for BDD construction: 0.004s (Max: 0.004s) Time for merge operator: 0.000s Time for coverage checks: 0.000s Time for BDD entailment checks: 0.000s Total time for SMT solver (w/o itp): 0.118s Number of path formula cache hits: 87 (55%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.007s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 228 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 98, min: 0, max: 0) Time for BDD node cleanup: 0.001s 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: 1.00 (sum: 151, count: 151, min: 1, max: 1) [1 x 151] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 89 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 52, min: 0, max: 0) CallstackSortedWaitlist: 16.25 (sum: 65, count: 4, min: 3, max: 37) Number of computed successors: 105 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 3 Number of times breaked: 4 Total time for CPA algorithm: 0.173s (Max: 0.097s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.150s Time for transfer relation: 0.015s Time for merge operator: 0.000s Time for stop operator: 0.001s 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: 0.004s Time for path feasibility check: 0.001s Time for predicate extraction from CFA: 0.002s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 2.67 (sum: 8, count: 3, min: 2, max: 3) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 200.021s Path-formulas extraction: 0.000s Counterexample analysis: 200.014s (Max: 199.749s, Calls: 4) Refinement sat check: 199.946s Interpolant computation: 0.001s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.003s Precision update: 0.001s ARG update: 0.001s Length of refined path (in blocks): 2.50 (sum: 5, count: 2, min: 2, max: 3) Number of affected states: 3 (count: 2, min: 1, max: 2, avg: 1.50) Length (states) of path with itp 'true': 0 (count: 2, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 3 (count: 2, min: 1, max: 2, avg: 1.50) Length (states) of path with itp 'false': 0 (count: 2, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 1 (count: 2, min: 0, max: 1, avg: 0.50) Equal non-trivial interpolants along paths: 0 (count: 2, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 3 Number of failed refinements: 0 Max. size of reached set before ref.: 44 Max. size of reached set after ref.: 3 Avg. size of reached set before ref.: 26.25 Avg. size of reached set after ref.: 2.33 Total time for CEGAR algorithm: 200.199s Time for refinements: 200.026s Average time for refinement: 50.006s Max time for refinement: 199.750s CPA algorithm statistics ------------------------ Number of iterations: 89 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 52, min: 0, max: 0) CallstackSortedWaitlist: 16.25 (sum: 65, count: 4, min: 3, max: 37) Number of computed successors: 105 Max successors for one state: 2 Number of times merged: 3 Number of times stopped: 3 Number of times breaked: 4 Total time for CPA algorithm: 0.173s (Max: 0.097s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.150s Time for transfer relation: 0.015s Time for merge operator: 0.000s Time for stop operator: 0.001s 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: 0.004s Time for path feasibility check: 0.001s Time for predicate extraction from CFA: 0.002s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 2.67 (sum: 8, count: 3, min: 2, max: 3) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 200.021s Path-formulas extraction: 0.000s Counterexample analysis: 200.014s (Max: 199.749s, Calls: 4) Refinement sat check: 199.946s Interpolant computation: 0.001s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.003s Precision update: 0.001s ARG update: 0.001s Length of refined path (in blocks): 2.50 (sum: 5, count: 2, min: 2, max: 3) Number of affected states: 3 (count: 2, min: 1, max: 2, avg: 1.50) Length (states) of path with itp 'true': 0 (count: 2, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 3 (count: 2, min: 1, max: 2, avg: 1.50) Length (states) of path with itp 'false': 0 (count: 2, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 1 (count: 2, min: 0, max: 1, avg: 0.50) Equal non-trivial interpolants along paths: 0 (count: 2, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 3 Number of failed refinements: 0 Max. size of reached set before ref.: 44 Max. size of reached set after ref.: 3 Avg. size of reached set before ref.: 26.25 Avg. size of reached set after ref.: 2.33 Total time for CEGAR algorithm: 200.199s Time for refinements: 200.026s Average time for refinement: 50.006s Max time for refinement: 199.750s 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) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 0.180s 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: 59, count: 62, min: 0, max: 1) [0 x 3, 1 x 59] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 59 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 3.00 (sum: 3, count: 1, min: 3, max: 3) Number of computed successors: 59 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 1 Number of times breaked: 0 Total time for CPA algorithm: 0.117s (Max: 0.117s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.105s Time for merge operator: 0.006s Time for stop operator: 0.001s Time for adding to reached set: 0.001s CPA algorithm statistics ------------------------ Number of iterations: 59 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 3.00 (sum: 3, count: 1, min: 3, max: 3) Number of computed successors: 59 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 1 Number of times breaked: 0 Total time for CPA algorithm: 0.117s (Max: 0.117s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.105s Time for merge operator: 0.006s Time for stop operator: 0.001s Time for adding to reached set: 0.001s 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: 0.0909 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: 496.159s PredicateCPA statistics ----------------------- Number of abstractions: 8 (10% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 4 (50%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 4 (50%) Times precision was empty: 8 (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: 4 BDD entailment checks: 0 Number of SMT sat checks: 1 trivial: 0 cached: 0 Max ABE block size: 11 Avg ABE block size: 8.00 (sum: 64, count: 8, min: 5, max: 11) Number of predicates discovered: 0 Time for post operator: 0.012s Time for path formula creation: 0.011s Time for strengthen operator: 0.000s Time for prec operator: 0.000s Time for abstraction: 0.000s (Max: 0.000s, Count: 8) 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: 0.000s Total time for SMT solver (w/o itp): 0.001s 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: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 78, count: 82, min: 0, max: 1) [0 x 4, 1 x 78] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 78 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.34 (sum: 20, count: 58, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 58, min: 0, max: 0) LoopIterationSortedWaitlist: 0.34 (sum: 20, count: 58, min: 0, max: 6) CallstackSortedWaitlist: 15.00 (sum: 30, count: 2, min: 10, max: 20) Number of computed successors: 78 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 2 Number of times breaked: 0 Total time for CPA algorithm: 0.033s (Max: 0.021s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.005s Time for transfer relation: 0.023s Time for merge operator: 0.003s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.035s Time for final sat check: 496.004s Time for bounding assertions check: 0.001s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 78 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.34 (sum: 20, count: 58, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 58, min: 0, max: 0) LoopIterationSortedWaitlist: 0.34 (sum: 20, count: 58, min: 0, max: 6) CallstackSortedWaitlist: 15.00 (sum: 30, count: 2, min: 10, max: 20) Number of computed successors: 78 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 2 Number of times breaked: 0 Total time for CPA algorithm: 0.033s (Max: 0.021s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.005s Time for transfer relation: 0.023s Time for merge operator: 0.003s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.035s Time for final sat check: 496.004s Time for bounding assertions check: 0.001s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 53 Number of CFA edges (per node): 54 (count: 53, min: 0, max: 2, avg: 1.02) Number of relevant variables: 11 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 9, min: 9, max: 9, avg: 9.00) Size of reached set: 74 Number of reached locations: 41 (77%) Avg states per location: 1 Max states per location: 4 (at node N10) Number of reached functions: 3 (75%) Number of target states: 2 Time for analysis setup: 0.958s Time for loading CPAs: 0.249s Time for loading parser: 0.169s Time for CFA construction: 0.505s Time for parsing file(s): 0.262s Time for AST to CFA: 0.121s Time for CFA sanity check: 0.000s Time for post-processing: 0.078s Time for loop structure: 0.003s Time for AST structure: 0.000s Time for function pointers resolving: 0.002s 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: 0.046s Time for collecting variables: 0.029s Time for solving dependencies: 0.000s Time for building hierarchy: 0.001s Time for building classification: 0.016s Time for exporting data: 0.000s Time for Analysis: 896.206s CPU time for analysis: 897.890s Total time for CPAchecker: 897.166s Total CPU time for CPAchecker: 899.600s Time for statistics: 0.035s Time for Garbage Collector: 0.066s (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--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".