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/loop-acceleration/simple_3-2.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/loop-acceleration/simple_3-2.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: 135.280s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 2.10 (sum: 37251, count: 17739, min: 0, max: 3) Number of global variables per state: 0.00 (sum: 0, count: 17739, min: 0, max: 0) Number of assumptions: 10642 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 17738 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.017s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 15965 (count: 17738, min: 0, max: 1, avg: 0.90) Symbolic values after refinement: 15965 (count: 17738, min: 0, max: 1, avg: 0.90) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.001s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 98.049s Time for SMT check: 68.427s Time for resolving definites: 16.988s Cache lookups: 7096 Direct cache hits: 3545 Direct cache lookup time: 0.057s Number of removed outdated constraints: 0 (count: 5323, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 2.810s Constraints after refinement in state: 15735381 (count: 17738, min: 0, max: 1774, avg: 887.10) Constraints before refinement in state: 15735381 (count: 17738, min: 0, max: 1774, avg: 887.10) Time for constraints adjustment: 2.242s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.053s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 17749, count: 17749, min: 1, max: 1) [1 x 17749] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 17737 Max size of waitlist: 4 Average size of waitlist: 3 Number of computed successors: 17740 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: 135.158s (Max: 135.158s) Time for choose from waitlist: 0.020s Time for precision adjustment: 2.364s Time for transfer relation: 102.338s Time for stop operator: 30.323s Time for adding to reached set: 0.031s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 17737 Max size of waitlist: 4 Average size of waitlist: 3 Number of computed successors: 17740 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: 135.158s (Max: 135.158s) Time for choose from waitlist: 0.020s Time for precision adjustment: 2.364s Time for transfer relation: 102.338s Time for stop operator: 30.323s Time for adding to reached set: 0.031s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 2 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 57.846s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 1.24 (sum: 82517, count: 66694, min: 0, max: 2) Number of global variables per state: 0.00 (sum: 0, count: 66694, min: 0, max: 0) Number of assumptions: 31658 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 68782 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.033s 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: 0.035s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 68800, count: 68800, min: 1, max: 1) [1 x 68800] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 57103 Max size of waitlist: 9606 Average size of waitlist: 4835 Number of computed successors: 68782 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 2074 Number of times breaked: 1 Total time for CPA algorithm: 57.782s (Max: 57.776s) Time for choose from waitlist: 0.095s Time for precision adjustment: 0.102s Time for transfer relation: 0.487s Time for stop operator: 56.854s Time for adding to reached set: 0.146s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.013s 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: 6 (count: 7, min: 0, max: 2, avg: 0.86) Size of interpolant: 0.71 (sum: 5, count: 7, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.003s Selecting infeasible sliced prefixes: 0.001s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 16 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 16.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 57.804s Time for refinements: 0.022s Average time for refinement: 0.022s Max time for refinement: 0.022s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 57103 Max size of waitlist: 9606 Average size of waitlist: 4835 Number of computed successors: 68782 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 2074 Number of times breaked: 1 Total time for CPA algorithm: 57.782s (Max: 57.776s) Time for choose from waitlist: 0.095s Time for precision adjustment: 0.102s Time for transfer relation: 0.487s Time for stop operator: 56.854s Time for adding to reached set: 0.146s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.013s 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: 6 (count: 7, min: 0, max: 2, avg: 0.86) Size of interpolant: 0.71 (sum: 5, count: 7, min: 0, max: 1) Number of sliced prefixes: 1 (count: 1, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.003s Selecting infeasible sliced prefixes: 0.001s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 16 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 16.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 57.804s Time for refinements: 0.022s Average time for refinement: 0.022s Max time for refinement: 0.022s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant) and JFactory 1.21. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 3 stopped. (The CPU-time limit of 200s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 194.791s PredicateCPA statistics ----------------------- Number of abstractions: 12887 (15% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 6444 (50%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 6443 (50%) Times precision was empty: 4 (0%) Times precision was {false}: 6441 (50%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 6442 (50%) Times result was 'false': 6329 (49%) Number of strengthen sat checks: 0 Number of coverage checks: 480928 BDD entailment checks: 480928 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 3 Avg ABE block size: 2.51 (sum: 32332, count: 12887, min: 2, max: 3) Number of predicates discovered: 115 Number of abstraction locations: 2 Max number of predicates per location: 113 Avg number of predicates per location: 57 Total predicates per abstraction: 487595 Max number of predicates per abstraction: 113 Avg number of predicates per abstraction: 37.85 Number of irrelevant predicates: 6441 (1%) Number of preds handled by boolean abs: 481154 (99%) Total number of models for allsat: 6441 Max number of models for allsat: 1 Avg number of models for allsat: 1.00 Time for post operator: 0.173s Time for path formula creation: 0.162s Time for strengthen operator: 0.031s Time for prec operator: 33.585s Time for abstraction: 33.499s (Max: 0.103s, Count: 12887) Boolean abstraction: 11.634s Solving time: 7.201s (Max: 0.007s) Model enumeration time: 2.241s Time for BDD construction: 1.982s (Max: 0.022s) Time for coverage checks: 0.762s Time for BDD entailment checks: 0.727s Total time for SMT solver (w/o itp): 9.442s Number of path formula cache hits: 88181 (98%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.120s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 350082 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 1.13 (sum: 1186080, count: 1045599, min: 0, max: 55640) Time for BDD node cleanup: 0.197s Time for BDD garbage collection: 0.095s (in 15 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: 0.162s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 83326, count: 83326, min: 1, max: 1) [1 x 83326] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 76751 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 44764, min: 0, max: 0) CallstackSortedWaitlist: 10904.10 (sum: 1253972, count: 115, min: 3, max: 31987) Number of computed successors: 83308 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 114 Total time for CPA algorithm: 35.666s (Max: 0.914s) Time for choose from waitlist: 0.044s Time for precision adjustment: 33.643s Time for transfer relation: 0.761s Time for merge operator: 0.895s Time for stop operator: 0.131s Time for adding to reached set: 0.127s 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: 0.003s Time for ARG update: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 113 Avg. length of target path (in blocks): 58.00 (sum: 6554, count: 113, min: 2, max: 114) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 159.022s Path-formulas extraction: 0.003s Counterexample analysis: 158.770s (Max: 6.068s, Calls: 114) Refinement sat check: 55.237s Interpolant computation: 103.091s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.038s Precision update: 0.072s ARG update: 0.095s Length of refined path (in blocks): 58.00 (sum: 6554, count: 113, min: 2, max: 114) Number of affected states: 6441 (count: 113, min: 1, max: 113, avg: 57.00) Length (states) of path with itp 'true': 0 (count: 113, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 6441 (count: 113, min: 1, max: 113, avg: 57.00) Length (states) of path with itp 'false': 0 (count: 113, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 6328 (count: 113, min: 0, max: 112, avg: 56.00) Equal non-trivial interpolants along paths: 0 (count: 113, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 114 Number of successful refinements: 114 Number of failed refinements: 0 Max. size of reached set before ref.: 1356 Max. size of reached set after ref.: 3 Avg. size of reached set before ref.: 678.11 Avg. size of reached set after ref.: 2.98 Total time for CEGAR algorithm: 194.725s Time for refinements: 159.057s Average time for refinement: 1.395s Max time for refinement: 6.072s CPA algorithm statistics ------------------------ Number of iterations: 76751 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 44764, min: 0, max: 0) CallstackSortedWaitlist: 10904.10 (sum: 1253972, count: 115, min: 3, max: 31987) Number of computed successors: 83308 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 114 Total time for CPA algorithm: 35.666s (Max: 0.914s) Time for choose from waitlist: 0.044s Time for precision adjustment: 33.643s Time for transfer relation: 0.761s Time for merge operator: 0.895s Time for stop operator: 0.131s Time for adding to reached set: 0.127s 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: 0.003s Time for ARG update: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 113 Avg. length of target path (in blocks): 58.00 (sum: 6554, count: 113, min: 2, max: 114) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 159.022s Path-formulas extraction: 0.003s Counterexample analysis: 158.770s (Max: 6.068s, Calls: 114) Refinement sat check: 55.237s Interpolant computation: 103.091s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.038s Precision update: 0.072s ARG update: 0.095s Length of refined path (in blocks): 58.00 (sum: 6554, count: 113, min: 2, max: 114) Number of affected states: 6441 (count: 113, min: 1, max: 113, avg: 57.00) Length (states) of path with itp 'true': 0 (count: 113, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 6441 (count: 113, min: 1, max: 113, avg: 57.00) Length (states) of path with itp 'false': 0 (count: 113, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 6328 (count: 113, min: 0, max: 112, avg: 56.00) Equal non-trivial interpolants along paths: 0 (count: 113, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 114 Number of successful refinements: 114 Number of failed refinements: 0 Max. size of reached set before ref.: 1356 Max. size of reached set after ref.: 3 Avg. size of reached set before ref.: 678.11 Avg. size of reached set after ref.: 2.98 Total time for CEGAR algorithm: 194.725s Time for refinements: 159.057s Average time for refinement: 1.395s Max time for refinement: 6.072s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 4 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 55.630s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.011s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 26055, count: 26055, min: 1, max: 1) [1 x 26055] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 23162 Max size of waitlist: 3 Average size of waitlist: 2 ReversePostorderSortedWaitlist: 8679.00 (sum: 8679, count: 1, min: 8679, max: 8679) Number of computed successors: 26055 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 2891 Number of times breaked: 0 Total time for CPA algorithm: 55.591s (Max: 55.591s) Time for choose from waitlist: 0.007s Time for precision adjustment: 0.025s Time for transfer relation: 0.838s Time for merge operator: 40.113s Time for stop operator: 14.542s Time for adding to reached set: 0.037s CPA algorithm statistics ------------------------ Number of iterations: 23162 Max size of waitlist: 3 Average size of waitlist: 2 ReversePostorderSortedWaitlist: 8679.00 (sum: 8679, count: 1, min: 8679, max: 8679) Number of computed successors: 26055 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 2891 Number of times breaked: 0 Total time for CPA algorithm: 55.591s (Max: 55.591s) Time for choose from waitlist: 0.007s Time for precision adjustment: 0.025s Time for transfer relation: 0.838s Time for merge operator: 40.113s Time for stop operator: 14.542s Time for adding to reached set: 0.037s 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) The current image reaches a fixed point (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:IMCAlgorithm.reachFixedPointByInterpolation, INFO) 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) Stopping analysis ... (CPAchecker.runAlgorithm, INFO) 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: 0.0000 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: 5 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: 0.066s PredicateCPA statistics ----------------------- Number of abstractions: 6 (13% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 4 (67%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 2 (33%) Times precision was empty: 6 (100%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 0 (0%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 4 trivial: 0 cached: 0 Max ABE block size: 3 Avg ABE block size: 2.50 (sum: 15, count: 6, min: 2, max: 3) Number of predicates discovered: 0 Time for post operator: 0.006s Time for path formula creation: 0.006s Time for strengthen operator: 0.000s Time for prec operator: 0.000s Time for abstraction: 0.000s (Max: 0.000s, Count: 6) Solving time: 0.000s (Max: 0.000s) Model enumeration time: 0.000s Time for BDD construction: 0.000s (Max: 0.000s) Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.004s 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: 39, count: 41, min: 0, max: 1) [0 x 2, 1 x 39] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 41 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.32 (sum: 10, count: 31, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 31, min: 0, max: 0) LoopIterationSortedWaitlist: 0.32 (sum: 10, count: 31, min: 0, max: 3) CallstackSortedWaitlist: 7.50 (sum: 15, count: 2, min: 5, max: 10) Number of computed successors: 39 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: 0.014s (Max: 0.007s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.001s Time for transfer relation: 0.012s Time for stop operator: 0.000s Time for adding to reached set: 0.000s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.016s Time for final sat check: 0.002s Time for bounding assertions check: 0.002s Time for collecting formulas for interpolation: 0.002s Time for computing fixed-point by interpolation: 0.008s Total number of computed interpolants: 2 Total number of interpolation calls: 2 Total number of atoms in interpolants: 2 Avg. #atoms in itp: 1 Min. #atoms in itp: 1 Max. #atoms in itp: 1 Total number of vars in interpolants: 2 Avg. #vars in itp: 1 Min. #vars in itp: 1 Max. #vars in itp: 1 Fixed-point convergence length: 2 Interpolating SMT solver statistics ----------------------------------- Counterexample analysis: 0.002s (Max: 0.002s, Calls: 2) Refinement sat check: 0.002s Reused formulas on solver stack: 2 (Avg: 1.00) Interpolant computation: 0.000s CPA algorithm statistics ------------------------ Number of iterations: 41 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.32 (sum: 10, count: 31, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 31, min: 0, max: 0) LoopIterationSortedWaitlist: 0.32 (sum: 10, count: 31, min: 0, max: 3) CallstackSortedWaitlist: 7.50 (sum: 15, count: 2, min: 5, max: 10) Number of computed successors: 39 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: 0.014s (Max: 0.007s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.001s Time for transfer relation: 0.012s Time for stop operator: 0.000s Time for adding to reached set: 0.000s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.016s Time for final sat check: 0.002s Time for bounding assertions check: 0.002s Time for collecting formulas for interpolation: 0.002s Time for computing fixed-point by interpolation: 0.008s Total number of computed interpolants: 2 Total number of interpolation calls: 2 Total number of atoms in interpolants: 2 Avg. #atoms in itp: 1 Min. #atoms in itp: 1 Max. #atoms in itp: 1 Total number of vars in interpolants: 2 Avg. #vars in itp: 1 Min. #vars in itp: 1 Max. #vars in itp: 1 Fixed-point convergence length: 2 Interpolating SMT solver statistics ----------------------------------- Counterexample analysis: 0.002s (Max: 0.002s, Calls: 2) Refinement sat check: 0.002s Reused formulas on solver stack: 2 (Avg: 1.00) Interpolant computation: 0.000s CPAchecker general statistics ----------------------------- Number of program locations: 32 Number of CFA edges (per node): 30 (count: 32, min: 0, max: 2, avg: 0.94) Number of relevant variables: 5 Number of functions: 3 Number of loops (and loop nodes): 1 (sum: 3, min: 3, max: 3, avg: 3.00) Size of reached set: 37 Number of reached locations: 24 (75%) Avg states per location: 1 Max states per location: 3 (at node N19) Number of reached functions: 2 (67%) Number of target states: 0 Time for analysis setup: 0.801s Time for loading CPAs: 0.257s Time for loading parser: 0.132s Time for CFA construction: 0.387s Time for parsing file(s): 0.192s Time for AST to CFA: 0.105s Time for CFA sanity check: 0.000s Time for post-processing: 0.060s 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: 0.036s Time for collecting variables: 0.021s Time for solving dependencies: 0.001s Time for building hierarchy: 0.000s Time for building classification: 0.014s Time for exporting data: 0.000s Time for Analysis: 444.002s CPU time for analysis: 461.580s Time for analyzing result: 0.001s Total time for CPAchecker: 444.804s Total CPU time for CPAchecker: 463.110s Time for statistics: 0.016s Time for Garbage Collector: 2.821s (in 506 runs) Garbage Collector(s) used: G1 Old Generation, G1 Young Generation Verification result: TRUE. No property violation found by chosen configuration. 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".