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_valuebound50.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_valuebound50.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: 139.781s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 6.97 (sum: 2585, count: 371, min: 0, max: 8) Number of global variables per state: 0.00 (sum: 0, count: 371, min: 0, max: 0) Number of assumptions: 150 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 370 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.005s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 1533 (count: 370, min: 0, max: 6, avg: 4.14) Symbolic values after refinement: 1533 (count: 370, min: 0, max: 6, avg: 4.14) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.001s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 139.402s Time for SMT check: 113.341s Time for resolving definites: 13.969s Cache lookups: 138 Direct cache hits: 30 Direct cache lookup time: 0.001s Number of removed outdated constraints: 0 (count: 132, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.062s Constraints after refinement in state: 7942 (count: 370, min: 0, max: 43, avg: 21.46) Constraints before refinement in state: 7942 (count: 370, min: 0, max: 43, avg: 21.46) Time for constraints adjustment: 0.016s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.007s Automaton transfers with branching: 0 Automaton transfer successors: 0.99 (sum: 466, count: 470, min: 0, max: 1) [0 x 4, 1 x 466] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 371 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 370 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: 139.644s (Max: 139.644s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.042s Time for transfer relation: 139.577s Time for stop operator: 0.013s Time for adding to reached set: 0.003s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 371 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 370 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: 139.644s (Max: 139.644s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.042s Time for transfer relation: 139.577s Time for stop operator: 0.013s Time for adding to reached set: 0.003s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--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: 0.527s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 1.68 (sum: 84, count: 50, min: 0, max: 3) Number of global variables per state: 0.00 (sum: 0, count: 50, min: 0, max: 0) Number of assumptions: 66 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 139 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.000s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 194, count: 200, min: 0, max: 1) [0 x 6, 1 x 194] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 125 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 139 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: 0.014s (Max: 0.006s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.002s Time for transfer relation: 0.006s Time for stop operator: 0.001s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.037s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.002s 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: 0.005s 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.: 47 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 40.25 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.067s Time for refinements: 0.053s Average time for refinement: 0.013s Max time for refinement: 0.027s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 2 Number of infeasible paths: 2 (100%) Time for counterexample checks: 0.424s CPA algorithm statistics ------------------------ Number of iterations: 125 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 139 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: 0.014s (Max: 0.006s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.002s Time for transfer relation: 0.006s Time for stop operator: 0.001s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.037s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 2 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.002s 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: 0.005s 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.: 47 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 40.25 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.067s Time for refinements: 0.053s Average time for refinement: 0.013s Max time for refinement: 0.027s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 2 Number of infeasible paths: 2 (100%) Time for counterexample checks: 0.424s 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: 200.063s PredicateCPA statistics ----------------------- Number of abstractions: 17 (8% 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: 24 BDD entailment checks: 8 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 22 Avg ABE block size: 7.94 (sum: 135, count: 17, min: 2, max: 22) Number of predicates discovered: 8 Number of abstraction locations: 2 Max number of predicates per location: 6 Avg number of predicates per location: 3 Total predicates per abstraction: 34 Max number of predicates per abstraction: 6 Avg number of predicates per abstraction: 2.62 Number of irrelevant predicates: 8 (24%) Number of preds handled by boolean abs: 26 (76%) Total number of models for allsat: 13 Max number of models for allsat: 3 Avg number of models for allsat: 2.60 Time for post operator: 0.023s Time for path formula creation: 0.020s Time for strengthen operator: 0.004s Time for prec operator: 0.322s Time for abstraction: 0.321s (Max: 0.116s, Count: 17) Boolean abstraction: 0.061s Solving time: 0.266s (Max: 0.113s) Model enumeration time: 0.014s Time for BDD construction: 0.007s (Max: 0.005s) Time for merge operator: 0.002s Time for coverage checks: 0.001s Time for BDD entailment checks: 0.000s Total time for SMT solver (w/o itp): 0.280s Number of path formula cache hits: 105 (50%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.017s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 337 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 142, min: 0, max: 0) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.98 (sum: 197, count: 201, min: 0, max: 1) [0 x 4, 1 x 197] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 139 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 91, min: 0, max: 0) CallstackSortedWaitlist: 27.00 (sum: 108, count: 4, min: 10, max: 48) Number of computed successors: 157 Max successors for one state: 2 Number of times merged: 8 Number of times stopped: 8 Number of times breaked: 4 Total time for CPA algorithm: 0.365s (Max: 0.273s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.324s Time for transfer relation: 0.032s Time for merge operator: 0.003s Time for stop operator: 0.001s Time for adding to reached set: 0.001s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.006s Time for path feasibility check: 0.002s 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: 199.635s Path-formulas extraction: 0.000s Counterexample analysis: 199.627s (Max: 199.376s, Calls: 4) Refinement sat check: 199.542s Interpolant computation: 0.003s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.005s Precision update: 0.001s ARG update: 0.000s 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.: 75 Max. size of reached set after ref.: 25 Avg. size of reached set before ref.: 48.75 Avg. size of reached set after ref.: 17.00 Total time for CEGAR algorithm: 200.007s Time for refinements: 199.642s Average time for refinement: 49.910s Max time for refinement: 199.377s CPA algorithm statistics ------------------------ Number of iterations: 139 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 91, min: 0, max: 0) CallstackSortedWaitlist: 27.00 (sum: 108, count: 4, min: 10, max: 48) Number of computed successors: 157 Max successors for one state: 2 Number of times merged: 8 Number of times stopped: 8 Number of times breaked: 4 Total time for CPA algorithm: 0.365s (Max: 0.273s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.324s Time for transfer relation: 0.032s Time for merge operator: 0.003s Time for stop operator: 0.001s Time for adding to reached set: 0.001s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.006s Time for path feasibility check: 0.002s 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: 199.635s Path-formulas extraction: 0.000s Counterexample analysis: 199.627s (Max: 199.376s, Calls: 4) Refinement sat check: 199.542s Interpolant computation: 0.003s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.005s Precision update: 0.001s ARG update: 0.000s 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.: 75 Max. size of reached set after ref.: 25 Avg. size of reached set before ref.: 48.75 Avg. size of reached set after ref.: 17.00 Total time for CEGAR algorithm: 200.007s Time for refinements: 199.642s Average time for refinement: 49.910s Max time for refinement: 199.377s 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: 55.881s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.050s Automaton transfers with branching: 0 Automaton transfer successors: 0.93 (sum: 3909, count: 4212, min: 0, max: 1) [0 x 303, 1 x 3909] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 3826 Max size of waitlist: 6 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 695.00 (sum: 695, count: 1, min: 695, max: 695) Number of computed successors: 3909 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 81 Number of times breaked: 0 Total time for CPA algorithm: 55.817s (Max: 55.817s) Time for choose from waitlist: 0.013s Time for precision adjustment: 0.014s Time for transfer relation: 1.279s Time for merge operator: 53.864s Time for stop operator: 0.587s Time for adding to reached set: 0.027s CPA algorithm statistics ------------------------ Number of iterations: 3826 Max size of waitlist: 6 Average size of waitlist: 3 ReversePostorderSortedWaitlist: 695.00 (sum: 695, count: 1, min: 695, max: 695) Number of computed successors: 3909 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 81 Number of times breaked: 0 Total time for CPA algorithm: 55.817s (Max: 55.817s) Time for choose from waitlist: 0.013s Time for precision adjustment: 0.014s Time for transfer relation: 1.279s Time for merge operator: 53.864s Time for stop operator: 0.587s Time for adding to reached set: 0.027s 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: 495.333s PredicateCPA statistics ----------------------- Number of abstractions: 8 (8% 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: 8 BDD entailment checks: 0 Number of SMT sat checks: 2 trivial: 0 cached: 0 Max ABE block size: 22 Avg ABE block size: 6.75 (sum: 54, count: 8, min: 2, max: 22) Number of predicates discovered: 0 Time for post operator: 0.007s Time for path formula creation: 0.007s Time for strengthen operator: 0.000s Time for prec operator: 0.001s 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: 0.001s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.042s 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: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.94 (sum: 97, count: 103, min: 0, max: 1) [0 x 6, 1 x 97] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 95 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.25 (sum: 18, count: 71, min: 0, max: 4) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 71, min: 0, max: 0) LoopIterationSortedWaitlist: 0.25 (sum: 18, count: 71, min: 0, max: 4) CallstackSortedWaitlist: 20.00 (sum: 40, count: 2, min: 16, max: 24) Number of computed successors: 97 Max successors for one state: 2 Number of times merged: 4 Number of times stopped: 4 Number of times breaked: 0 Total time for CPA algorithm: 0.024s (Max: 0.018s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.004s Time for transfer relation: 0.013s Time for merge operator: 0.001s Time for stop operator: 0.001s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.025s Time for final sat check: 495.155s Time for bounding assertions check: 0.042s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 95 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.25 (sum: 18, count: 71, min: 0, max: 4) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 71, min: 0, max: 0) LoopIterationSortedWaitlist: 0.25 (sum: 18, count: 71, min: 0, max: 4) CallstackSortedWaitlist: 20.00 (sum: 40, count: 2, min: 16, max: 24) Number of computed successors: 97 Max successors for one state: 2 Number of times merged: 4 Number of times stopped: 4 Number of times breaked: 0 Total time for CPA algorithm: 0.024s (Max: 0.018s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.004s Time for transfer relation: 0.013s Time for merge operator: 0.001s Time for stop operator: 0.001s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.025s Time for final sat check: 495.155s Time for bounding assertions check: 0.042s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 62 Number of CFA edges (per node): 70 (count: 62, min: 0, max: 2, avg: 1.13) Number of relevant variables: 12 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 7, min: 7, max: 7, avg: 7.00) Size of reached set: 91 Number of reached locations: 55 (89%) Avg states per location: 1 Max states per location: 4 (at node N10) Number of reached functions: 4 (100%) Number of target states: 2 Time for analysis setup: 0.880s Time for loading CPAs: 0.302s Time for loading parser: 0.148s Time for CFA construction: 0.416s Time for parsing file(s): 0.202s Time for AST to CFA: 0.117s Time for CFA sanity check: 0.000s Time for post-processing: 0.065s 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: 0.038s Time for collecting variables: 0.023s Time for solving dependencies: 0.000s Time for building hierarchy: 0.000s Time for building classification: 0.015s Time for exporting data: 0.000s Time for Analysis: 891.654s CPU time for analysis: 897.980s Total time for CPAchecker: 892.537s Total CPU time for CPAchecker: 899.660s Time for statistics: 0.015s Time for Garbage Collector: 0.375s (in 465 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".