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/lcm2_valuebound20.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/lcm2_valuebound20.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: 136.628s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 8.00 (sum: 22709, count: 2838, min: 0, max: 9) Number of global variables per state: 0.00 (sum: 0, count: 2838, min: 0, max: 0) Number of assumptions: 1103 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 2837 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.011s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 17170 (count: 2837, min: 0, max: 7, avg: 6.05) Symbolic values after refinement: 17170 (count: 2837, min: 0, max: 7, avg: 6.05) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 135.341s Time for SMT check: 90.029s Time for resolving definites: 30.400s Cache lookups: 1095 Direct cache hits: 132 Direct cache lookup time: 0.003s Number of removed outdated constraints: 0 (count: 1091, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.329s Constraints after refinement in state: 70017 (count: 2837, min: 0, max: 31, avg: 24.68) Constraints before refinement in state: 70017 (count: 2837, min: 0, max: 31, avg: 24.68) Time for constraints adjustment: 0.080s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.030s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 3384, count: 3388, min: 0, max: 1) [0 x 4, 1 x 3384] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 2783 Max size of waitlist: 104 Average size of waitlist: 67 Number of computed successors: 2837 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: 136.456s (Max: 136.456s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.179s Time for transfer relation: 136.105s Time for stop operator: 0.124s Time for adding to reached set: 0.012s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 2783 Max size of waitlist: 104 Average size of waitlist: 67 Number of computed successors: 2837 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: 136.456s (Max: 136.456s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.179s Time for transfer relation: 136.105s Time for stop operator: 0.124s Time for adding to reached set: 0.012s 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) Analysis 2 terminated, but result is unsound. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 0.731s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 1.85 (sum: 144, count: 78, min: 0, max: 3) Number of global variables per state: 0.00 (sum: 0, count: 78, min: 0, max: 0) Number of assumptions: 90 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 211 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.003s 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: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.94 (sum: 270, count: 288, min: 0, max: 1) [0 x 18, 1 x 270] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 197 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 211 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 11 Number of times breaked: 4 Total time for CPA algorithm: 0.038s (Max: 0.015s) Time for choose from waitlist: 0.012s Time for precision adjustment: 0.004s Time for transfer relation: 0.014s 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: 0.069s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.001s Number of interpolations: 2 Number of interpolation queries: 8 (count: 23, min: 0, max: 2, avg: 0.35) Size of interpolant: 0.26 (sum: 6, count: 23, min: 0, max: 1) Number of sliced prefixes: 3 (count: 2, min: 1, max: 2, avg: 1.50) Extracting infeasible sliced prefixes: 0.012s Selecting infeasible sliced prefixes: 0.002s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 79 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 66.25 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.136s Time for refinements: 0.097s Average time for refinement: 0.024s Max time for refinement: 0.050s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 2 Number of infeasible paths: 2 (100%) Time for counterexample checks: 0.537s CPA algorithm statistics ------------------------ Number of iterations: 197 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 211 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 11 Number of times breaked: 4 Total time for CPA algorithm: 0.038s (Max: 0.015s) Time for choose from waitlist: 0.012s Time for precision adjustment: 0.004s Time for transfer relation: 0.014s 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: 0.069s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.001s Number of interpolations: 2 Number of interpolation queries: 8 (count: 23, min: 0, max: 2, avg: 0.35) Size of interpolant: 0.26 (sum: 6, count: 23, min: 0, max: 1) Number of sliced prefixes: 3 (count: 2, min: 1, max: 2, avg: 1.50) Extracting infeasible sliced prefixes: 0.012s Selecting infeasible sliced prefixes: 0.002s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 79 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 66.25 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.136s Time for refinements: 0.097s Average time for refinement: 0.024s Max time for refinement: 0.050s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 2 Number of infeasible paths: 2 (100%) Time for counterexample checks: 0.537s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant) and JFactory 1.21. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 3 stopped. (The CPU-time limit of 200s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 199.827s PredicateCPA statistics ----------------------- Number of abstractions: 17 (6% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 7 (41%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 10 (59%) Times precision was empty: 4 (24%) Times precision was {false}: 8 (47%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 5 (29%) Times result was 'false': 6 (35%) Number of strengthen sat checks: 0 Number of coverage checks: 30 BDD entailment checks: 8 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 30 Avg ABE block size: 9.82 (sum: 167, count: 17, min: 2, max: 30) Number of predicates discovered: 23 Number of abstraction locations: 2 Max number of predicates per location: 21 Avg number of predicates per location: 11 Total predicates per abstraction: 91 Max number of predicates per abstraction: 21 Avg number of predicates per abstraction: 7.00 Number of irrelevant predicates: 8 (9%) Number of preds handled by boolean abs: 83 (91%) Total number of models for allsat: 16 Max number of models for allsat: 6 Avg number of models for allsat: 3.20 Time for post operator: 0.025s Time for path formula creation: 0.025s Time for strengthen operator: 0.004s Time for prec operator: 0.788s Time for abstraction: 0.788s (Max: 0.320s, Count: 17) Boolean abstraction: 0.362s Solving time: 0.450s (Max: 0.315s) Model enumeration time: 0.280s Time for BDD construction: 0.009s (Max: 0.004s) Time for merge operator: 0.008s Time for coverage checks: 0.000s Time for BDD entailment checks: 0.000s Total time for SMT solver (w/o itp): 0.730s Number of path formula cache hits: 141 (49%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.024s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 1557 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 333, 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: 0.002s Automaton transfers with branching: 0 Automaton transfer successors: 0.96 (sum: 264, count: 276, min: 0, max: 1) [0 x 12, 1 x 264] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 199 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 131, min: 0, max: 0) CallstackSortedWaitlist: 38.00 (sum: 152, count: 4, min: 14, max: 68) Number of computed successors: 220 Max successors for one state: 2 Number of times merged: 11 Number of times stopped: 11 Number of times breaked: 4 Total time for CPA algorithm: 0.853s (Max: 0.747s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.789s Time for transfer relation: 0.042s Time for merge operator: 0.011s Time for stop operator: 0.002s 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: 0.009s Time for path feasibility check: 0.004s Time for predicate extraction from CFA: 0.003s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 3.00 (sum: 9, count: 3, min: 2, max: 4) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 198.883s Path-formulas extraction: 0.000s Counterexample analysis: 198.876s (Max: 198.546s, Calls: 4) Refinement sat check: 198.845s Interpolant computation: 0.004s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.005s 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.: 107 Max. size of reached set after ref.: 49 Avg. size of reached set before ref.: 75.75 Avg. size of reached set after ref.: 33.00 Total time for CEGAR algorithm: 199.745s Time for refinements: 198.892s Average time for refinement: 49.723s Max time for refinement: 198.547s CPA algorithm statistics ------------------------ Number of iterations: 199 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 131, min: 0, max: 0) CallstackSortedWaitlist: 38.00 (sum: 152, count: 4, min: 14, max: 68) Number of computed successors: 220 Max successors for one state: 2 Number of times merged: 11 Number of times stopped: 11 Number of times breaked: 4 Total time for CPA algorithm: 0.853s (Max: 0.747s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.789s Time for transfer relation: 0.042s Time for merge operator: 0.011s Time for stop operator: 0.002s 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: 0.009s Time for path feasibility check: 0.004s Time for predicate extraction from CFA: 0.003s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 3.00 (sum: 9, count: 3, min: 2, max: 4) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 198.883s Path-formulas extraction: 0.000s Counterexample analysis: 198.876s (Max: 198.546s, Calls: 4) Refinement sat check: 198.845s Interpolant computation: 0.004s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.005s 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.: 107 Max. size of reached set after ref.: 49 Avg. size of reached set before ref.: 75.75 Avg. size of reached set after ref.: 33.00 Total time for CEGAR algorithm: 199.745s Time for refinements: 198.892s Average time for refinement: 49.723s Max time for refinement: 198.547s 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: 0.432s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.93 (sum: 404, count: 433, min: 0, max: 1) [0 x 29, 1 x 404] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 378 Max size of waitlist: 8 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 79.00 (sum: 79, count: 1, min: 79, max: 79) Number of computed successors: 404 Max successors for one state: 2 Number of times merged: 45 Number of times stopped: 72 Number of times breaked: 0 Total time for CPA algorithm: 0.362s (Max: 0.362s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.004s Time for transfer relation: 0.151s Time for merge operator: 0.164s Time for stop operator: 0.036s Time for adding to reached set: 0.002s CPA algorithm statistics ------------------------ Number of iterations: 378 Max size of waitlist: 8 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 79.00 (sum: 79, count: 1, min: 79, max: 79) Number of computed successors: 404 Max successors for one state: 2 Number of times merged: 45 Number of times stopped: 72 Number of times breaked: 0 Total time for CPA algorithm: 0.362s (Max: 0.362s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.004s Time for transfer relation: 0.151s Time for merge operator: 0.164s Time for stop operator: 0.036s Time for adding to reached set: 0.002s 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: 0.0000 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: 6 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: 553.691s PredicateCPA statistics ----------------------- Number of abstractions: 8 (6% 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: 12 BDD entailment checks: 0 Number of SMT sat checks: 2 trivial: 0 cached: 0 Max ABE block size: 30 Avg ABE block size: 7.75 (sum: 62, count: 8, min: 2, max: 30) Number of predicates discovered: 0 Time for post operator: 0.013s Time for path formula creation: 0.012s Time for strengthen operator: 0.000s Time for prec operator: 0.002s 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: 0.000s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.033s 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: 0.002s Automaton transfers with branching: 0 Automaton transfer successors: 0.93 (sum: 133, count: 143, min: 0, max: 1) [0 x 10, 1 x 133] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 129 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.25 (sum: 22, count: 89, min: 0, max: 4) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 89, min: 0, max: 0) LoopIterationSortedWaitlist: 0.25 (sum: 22, count: 89, min: 0, max: 4) CallstackSortedWaitlist: 33.00 (sum: 66, count: 2, min: 26, max: 40) Number of computed successors: 133 Max successors for one state: 2 Number of times merged: 6 Number of times stopped: 6 Number of times breaked: 0 Total time for CPA algorithm: 0.027s (Max: 0.021s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.007s Time for transfer relation: 0.017s Time for merge operator: 0.001s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.028s Time for final sat check: 553.551s Time for bounding assertions check: 0.033s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 129 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.25 (sum: 22, count: 89, min: 0, max: 4) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 89, min: 0, max: 0) LoopIterationSortedWaitlist: 0.25 (sum: 22, count: 89, min: 0, max: 4) CallstackSortedWaitlist: 33.00 (sum: 66, count: 2, min: 26, max: 40) Number of computed successors: 133 Max successors for one state: 2 Number of times merged: 6 Number of times stopped: 6 Number of times breaked: 0 Total time for CPA algorithm: 0.027s (Max: 0.021s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.007s Time for transfer relation: 0.017s Time for merge operator: 0.001s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.028s Time for final sat check: 553.551s Time for bounding assertions check: 0.033s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 72 Number of CFA edges (per node): 89 (count: 72, min: 0, max: 6, avg: 1.24) Number of relevant variables: 13 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 11, min: 11, max: 11, avg: 11.00) Size of reached set: 125 Number of reached locations: 65 (90%) Avg states per location: 1 Max states per location: 6 (at node N4) Number of reached functions: 4 (100%) Number of target states: 2 Time for analysis setup: 1.216s Time for loading CPAs: 0.386s Time for loading parser: 0.235s Time for CFA construction: 0.571s Time for parsing file(s): 0.274s Time for AST to CFA: 0.159s Time for CFA sanity check: 0.000s Time for post-processing: 0.091s Time for loop structure: 0.006s Time for AST structure: 0.000s Time for function pointers resolving: 0.004s 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: 0.056s Time for collecting variables: 0.034s Time for solving dependencies: 0.001s Time for building hierarchy: 0.000s Time for building classification: 0.021s Time for exporting data: 0.000s Time for Analysis: 891.403s CPU time for analysis: 897.030s Total time for CPAchecker: 892.621s Total CPU time for CPAchecker: 899.340s Time for statistics: 0.025s Time for Garbage Collector: 0.080s (in 14 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".