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/prod4br-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/prod4br-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: 138.684s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 8.14 (sum: 11902, count: 1463, min: 0, max: 9) Number of global variables per state: 0.00 (sum: 0, count: 1463, min: 0, max: 0) Number of assumptions: 928 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 1462 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.013s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 7498 (count: 1462, min: 0, max: 7, avg: 5.13) Symbolic values after refinement: 7498 (count: 1462, min: 0, max: 7, avg: 5.13) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 137.797s Time for SMT check: 99.173s Time for resolving definites: 24.927s Cache lookups: 916 Direct cache hits: 82 Direct cache lookup time: 0.001s Number of removed outdated constraints: 0 (count: 910, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.179s Constraints after refinement in state: 32829 (count: 1462, min: 0, max: 32, avg: 22.45) Constraints before refinement in state: 32829 (count: 1462, min: 0, max: 32, avg: 22.45) Time for constraints adjustment: 0.033s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.027s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 1947, count: 1952, min: 0, max: 1) [0 x 5, 1 x 1947] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 1374 Max size of waitlist: 91 Average size of waitlist: 41 Number of computed successors: 1462 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: 138.510s (Max: 138.510s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.116s Time for transfer relation: 138.310s Time for stop operator: 0.049s Time for adding to reached set: 0.009s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 1374 Max size of waitlist: 91 Average size of waitlist: 41 Number of computed successors: 1462 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: 138.510s (Max: 138.510s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.116s Time for transfer relation: 138.310s Time for stop operator: 0.049s Time for adding to reached set: 0.009s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Error path found but identified as infeasible. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Infeasible counterexample found, but could not remove it from the ARG. Therefore, we cannot prove safety. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, WARNING) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Error path found but identified as infeasible. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Another infeasible counterexample found which could not be removed from the ARG. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) 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: 0.568s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 1.80 (sum: 137, count: 76, min: 0, max: 3) Number of global variables per state: 0.00 (sum: 0, count: 76, min: 0, max: 0) Number of assumptions: 86 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 181 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.001s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.002s Automaton transfers with branching: 0 Automaton transfer successors: 0.96 (sum: 244, count: 253, min: 0, max: 1) [0 x 9, 1 x 244] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 160 Max size of waitlist: 5 Average size of waitlist: 1 Number of computed successors: 181 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 17 Number of times breaked: 5 Total time for CPA algorithm: 0.020s (Max: 0.010s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.002s Time for transfer relation: 0.008s Time for stop operator: 0.001s Time for adding to reached set: 0.004s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 5 Number of targets found: 5 (count: 5, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.036s 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: 5 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 77 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 56.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.072s Time for refinements: 0.052s Average time for refinement: 0.010s Max time for refinement: 0.027s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 3 Number of infeasible paths: 3 (100%) Time for counterexample checks: 0.452s CPA algorithm statistics ------------------------ Number of iterations: 160 Max size of waitlist: 5 Average size of waitlist: 1 Number of computed successors: 181 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 17 Number of times breaked: 5 Total time for CPA algorithm: 0.020s (Max: 0.010s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.002s Time for transfer relation: 0.008s Time for stop operator: 0.001s Time for adding to reached set: 0.004s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 5 Number of targets found: 5 (count: 5, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.036s 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: 5 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 77 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 56.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.072s Time for refinements: 0.052s Average time for refinement: 0.010s Max time for refinement: 0.027s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 3 Number of infeasible paths: 3 (100%) Time for counterexample checks: 0.452s 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: 199.873s PredicateCPA statistics ----------------------- Number of abstractions: 20 (6% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 7 (35%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 13 (65%) Times precision was empty: 4 (20%) Times precision was {false}: 11 (55%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 5 (25%) Times result was 'false': 9 (45%) Number of strengthen sat checks: 0 Number of coverage checks: 66 BDD entailment checks: 8 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 26 Avg ABE block size: 9.95 (sum: 199, count: 20, min: 2, max: 26) Number of predicates discovered: 28 Number of abstraction locations: 2 Max number of predicates per location: 26 Avg number of predicates per location: 13 Total predicates per abstraction: 105 Max number of predicates per abstraction: 26 Avg number of predicates per abstraction: 6.56 Number of irrelevant predicates: 11 (10%) Number of preds handled by boolean abs: 94 (90%) Total number of models for allsat: 62 Max number of models for allsat: 33 Avg number of models for allsat: 12.40 Time for post operator: 0.031s Time for path formula creation: 0.031s Time for strengthen operator: 0.000s Time for prec operator: 10.872s Time for abstraction: 10.871s (Max: 8.742s, Count: 20) Boolean abstraction: 1.327s Solving time: 9.716s (Max: 8.715s) Model enumeration time: 0.928s Time for BDD construction: 0.018s (Max: 0.006s) Time for merge operator: 0.004s Time for coverage checks: 0.002s Time for BDD entailment checks: 0.002s Total time for SMT solver (w/o itp): 10.644s Number of path formula cache hits: 154 (46%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.030s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 9026 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.12 (sum: 84, count: 685, min: 0, max: 84) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.98 (sum: 312, count: 318, min: 0, max: 1) [0 x 6, 1 x 312] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 214 Max size of waitlist: 4 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 113, min: 0, max: 0) CallstackSortedWaitlist: 45.75 (sum: 183, count: 4, min: 11, max: 101) Number of computed successors: 256 Max successors for one state: 2 Number of times merged: 29 Number of times stopped: 29 Number of times breaked: 4 Total time for CPA algorithm: 10.931s (Max: 10.690s) Time for choose from waitlist: 0.000s Time for precision adjustment: 10.874s Time for transfer relation: 0.042s Time for merge operator: 0.010s Time for stop operator: 0.002s 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: 0.007s Time for path feasibility check: 0.003s 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: 188.869s Path-formulas extraction: 0.000s Counterexample analysis: 188.863s (Max: 186.691s, Calls: 4) Refinement sat check: 188.690s Interpolant computation: 0.005s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.003s Precision update: 0.002s 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.: 123 Max. size of reached set after ref.: 31 Avg. size of reached set before ref.: 70.50 Avg. size of reached set after ref.: 21.00 Total time for CEGAR algorithm: 199.808s Time for refinements: 188.876s Average time for refinement: 47.219s Max time for refinement: 186.692s CPA algorithm statistics ------------------------ Number of iterations: 214 Max size of waitlist: 4 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 113, min: 0, max: 0) CallstackSortedWaitlist: 45.75 (sum: 183, count: 4, min: 11, max: 101) Number of computed successors: 256 Max successors for one state: 2 Number of times merged: 29 Number of times stopped: 29 Number of times breaked: 4 Total time for CPA algorithm: 10.931s (Max: 10.690s) Time for choose from waitlist: 0.000s Time for precision adjustment: 10.874s Time for transfer relation: 0.042s Time for merge operator: 0.010s Time for stop operator: 0.002s 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: 0.007s Time for path feasibility check: 0.003s 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: 188.869s Path-formulas extraction: 0.000s Counterexample analysis: 188.863s (Max: 186.691s, Calls: 4) Refinement sat check: 188.690s Interpolant computation: 0.005s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.003s Precision update: 0.002s 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.: 123 Max. size of reached set after ref.: 31 Avg. size of reached set before ref.: 70.50 Avg. size of reached set after ref.: 21.00 Total time for CEGAR algorithm: 199.808s Time for refinements: 188.876s Average time for refinement: 47.219s Max time for refinement: 186.692s 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: 52.303s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.099s Automaton transfers with branching: 0 Automaton transfer successors: 0.96 (sum: 12183, count: 12718, min: 0, max: 1) [0 x 535, 1 x 12183] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 10654 Max size of waitlist: 767 Average size of waitlist: 330 ReversePostorderSortedWaitlist: 1404.00 (sum: 1404, count: 1, min: 1404, max: 1404) Number of computed successors: 12183 Max successors for one state: 2 Number of times merged: 40 Number of times stopped: 801 Number of times breaked: 0 Total time for CPA algorithm: 52.232s (Max: 52.232s) Time for choose from waitlist: 0.034s Time for precision adjustment: 0.058s Time for transfer relation: 1.442s Time for merge operator: 35.851s Time for stop operator: 14.609s Time for adding to reached set: 0.078s CPA algorithm statistics ------------------------ Number of iterations: 10654 Max size of waitlist: 767 Average size of waitlist: 330 ReversePostorderSortedWaitlist: 1404.00 (sum: 1404, count: 1, min: 1404, max: 1404) Number of computed successors: 12183 Max successors for one state: 2 Number of times merged: 40 Number of times stopped: 801 Number of times breaked: 0 Total time for CPA algorithm: 52.232s (Max: 52.232s) Time for choose from waitlist: 0.034s Time for precision adjustment: 0.058s Time for transfer relation: 1.442s Time for merge operator: 35.851s Time for stop operator: 14.609s Time for adding to reached set: 0.078s 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: 495.009s PredicateCPA statistics ----------------------- Number of abstractions: 10 (5% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 4 (40%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 6 (60%) Times precision was empty: 10 (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: 36 BDD entailment checks: 0 Number of SMT sat checks: 2 trivial: 0 cached: 0 Max ABE block size: 26 Avg ABE block size: 9.70 (sum: 97, count: 10, min: 2, max: 26) Number of predicates discovered: 0 Time for post operator: 0.015s Time for path formula creation: 0.013s Time for strengthen operator: 0.000s Time for prec operator: 0.003s Time for abstraction: 0.000s (Max: 0.000s, Count: 10) 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): 0.312s 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: 171, count: 180, min: 0, max: 1) [0 x 9, 1 x 171] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 155 Max size of waitlist: 4 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.32 (sum: 27, count: 84, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 84, min: 0, max: 0) LoopIterationSortedWaitlist: 0.32 (sum: 27, count: 84, min: 0, max: 6) CallstackSortedWaitlist: 55.50 (sum: 111, count: 2, min: 40, max: 71) Number of computed successors: 171 Max successors for one state: 2 Number of times merged: 18 Number of times stopped: 18 Number of times breaked: 0 Total time for CPA algorithm: 0.035s (Max: 0.023s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.009s Time for transfer relation: 0.019s Time for merge operator: 0.001s Time for stop operator: 0.000s Time for adding to reached set: 0.000s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.039s Time for final sat check: 494.383s Time for bounding assertions check: 0.313s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 155 Max size of waitlist: 4 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.32 (sum: 27, count: 84, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 84, min: 0, max: 0) LoopIterationSortedWaitlist: 0.32 (sum: 27, count: 84, min: 0, max: 6) CallstackSortedWaitlist: 55.50 (sum: 111, count: 2, min: 40, max: 71) Number of computed successors: 171 Max successors for one state: 2 Number of times merged: 18 Number of times stopped: 18 Number of times breaked: 0 Total time for CPA algorithm: 0.035s (Max: 0.023s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.009s Time for transfer relation: 0.019s Time for merge operator: 0.001s Time for stop operator: 0.000s Time for adding to reached set: 0.000s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.039s Time for final sat check: 494.383s Time for bounding assertions check: 0.313s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 84 Number of CFA edges (per node): 103 (count: 84, min: 0, max: 3, avg: 1.23) Number of relevant variables: 13 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 25, min: 25, max: 25, avg: 25.00) Size of reached set: 150 Number of reached locations: 77 (92%) Avg states per location: 1 Max states per location: 6 (at node N10) Number of reached functions: 4 (100%) Number of target states: 3 Time for analysis setup: 0.984s Time for loading CPAs: 0.349s Time for loading parser: 0.154s Time for CFA construction: 0.456s Time for parsing file(s): 0.215s Time for AST to CFA: 0.124s Time for CFA sanity check: 0.001s Time for post-processing: 0.077s Time for loop structure: 0.005s Time for AST structure: 0.000s Time for function pointers resolving: 0.002s Function calls via function pointers: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer calls: 0 (count: 1, min: 0, max: 0, avg: 0.00) Function calls with function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Time for classifying variables: 0.046s Time for collecting variables: 0.027s Time for solving dependencies: 0.000s Time for building hierarchy: 0.000s Time for building classification: 0.019s Time for exporting data: 0.000s Time for Analysis: 886.502s CPU time for analysis: 897.890s Total time for CPAchecker: 887.487s Total CPU time for CPAchecker: 899.720s Time for statistics: 0.023s Time for Garbage Collector: 0.392s (in 237 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".