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/verifythis/elimination_max_rec_onepoint.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/verifythis/elimination_max_rec_onepoint.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--configselection-restart-bmc-fallbacks.properties:ResourceLimitChecker.fromConfiguration, INFO) Using Restarting Algorithm (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:CoreComponentsFactory.createAlgorithm, INFO) Loading analysis 1 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.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--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.properties:PredicateCPA:PredicateCPA., INFO) Starting analysis 1 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) Skipping recursive function call from check to check (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.properties:TargetLocationProvider:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Creating formula for program (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.properties:AbstractBMCAlgorithm.run, INFO) Recursion detected, aborting. To ignore recursion, add --skip-recursion to the command line. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-singleconfig-bmc.properties:CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Warning: Analysis 1 not completed. (line 29: Unsupported feature (recursion): x1 = check(x, y, a, i, n); (line was originally int x1 = check(x, y, a, i, n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:CallstackTransferRelation.getAbstractSuccessorsForEdge, WARNING) Statistics for algorithm 1 of 4 =============================== Total time for algorithm 1: 0.505s PredicateCPA statistics ----------------------- Number of abstractions: 1 (1% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 0 (0%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 1 (100%) Times precision was empty: 1 (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: 14 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 24 Avg ABE block size: 24.00 (sum: 24, count: 1, min: 24, max: 24) Number of predicates discovered: 0 Time for post operator: 0.108s Time for path formula creation: 0.108s Time for strengthen operator: 0.002s Time for prec operator: 0.001s Time for abstraction: 0.000s (Max: 0.000s, Count: 1) 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: 0.008s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.000s 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: 1 Maximum loop iteration reached: 0 ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.74 (sum: 57, count: 77, min: 0, max: 3) Number of global variables per state: 0.00 (sum: 0, count: 77, min: 0, max: 0) Number of assumptions: 28 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 83 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.004s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.006s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 83, count: 87, min: 0, max: 1) [0 x 4, 1 x 83] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 76 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.09 (sum: 4, count: 43, min: 0, max: 1) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 43, min: 0, max: 0) LoopIterationSortedWaitlist: 0.09 (sum: 4, count: 43, min: 0, max: 1) CallstackSortedWaitlist: 33.00 (sum: 33, count: 1, min: 33, max: 33) Number of computed successors: 83 Max successors for one state: 2 Number of times merged: 7 Number of times stopped: 7 Number of times breaked: 0 Total time for CPA algorithm: 0.188s (Max: 0.188s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.016s Time for transfer relation: 0.145s Time for merge operator: 0.013s Time for stop operator: 0.001s Time for adding to reached set: 0.007s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.190s CPA algorithm statistics ------------------------ Number of iterations: 76 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.09 (sum: 4, count: 43, min: 0, max: 1) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 43, min: 0, max: 0) LoopIterationSortedWaitlist: 0.09 (sum: 4, count: 43, min: 0, max: 1) CallstackSortedWaitlist: 33.00 (sum: 33, count: 1, min: 33, max: 33) Number of computed successors: 83 Max successors for one state: 2 Number of times merged: 7 Number of times stopped: 7 Number of times breaked: 0 Total time for CPA algorithm: 0.188s (Max: 0.188s) Time for choose from waitlist: 0.004s Time for precision adjustment: 0.016s Time for transfer relation: 0.145s Time for merge operator: 0.013s Time for stop operator: 0.001s Time for adding to reached set: 0.007s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.190s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.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--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMPredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with BAMPredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMPredicateCPA:PredicateCPARefiner., INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, INFO) fixpoint-iteration aborted, because there was a target state. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMTransferRelationWithFixPointForRecursion.doFixpointIterationForRecursion, 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--concurrency.properties' because condition if-concurrent did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Warning: Analysis 3 stopped. (The JVM is shutting down, probably because Ctrl+C was pressed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) 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--configselection-restart-bmc-fallbacks.properties Program containing only relevant bools: 0 Relevant boolean vars / relevant vars ratio: 0.0000 Requires alias handling: 0 Requires loop handling: 0 Has a single loop: 0 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: 9 Restart Algorithm statistics ---------------------------- Number of algorithms provided: 4 Number of algorithms used: 3 Last algorithm used: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties Total time for algorithm 3: 893.269s BAMCPA statistics ----------------- Number of blocks: 5 Max reached nesting level: 5 Time for building block partitioning: 0.010s Time for reducing abstract states: 0.166s Time for expanding abstract states: 0.014s Time for reducing precisions: 0.007s Time for expanding precisions: 0.006s Number of created nested algortihms: 40 Nesting level of target states with caching: 1.85 (#=27, min=0, max=5, hist=[0 x 6, 1 x 6, 2 x 6, 3 x 5, 4 x 3, 5]) Nesting level of target states without caching: 3.81 (#=27, min=3, max=5, hist=[3 x 11, 4 x 10, 5 x 6]) BAM-based Refinement: Compute path for refinement: 0.011s Constructing flat ARG: 0.006s Searching path to error location: 0.005s Removing cached subtrees: 0.009s Number of refinements with a missing block: 0 Number of started refinements: 6 Number of spurious counterexamples: 6 Number of precise counterexamples: 0 Block statistics: Analyzed blocks: 4 Avg. time for block analysis: 223.284s Mean time for block analysis: 0.175s Min time for block analysis: 0.094s Max time for block analysis: 867.250s StdDev time for block analysis: 371.939s Total time for block analysis: 893.139s Time for main block: 25.620s ([N53]) could not compute full reached set graph, there is no exit state (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMARGStatistics.isValidContext, WARNING) BAMCache statistics ------------------- Total size of all ARGs: 395 (#=34, avg=11.62, dev=11.75, min=3, max=36) Total number of recursive CPA calls: 53 Number of cache misses: 34 (64% of all calls) Number of partial cache hits: 6 (11% of all calls) Number of full cache hits: 13 (25% of all calls) Time for checking equality of abstract states: 0.001s (Calls: 27) Time for computing the hashCode of abstract states: 0.006s (Calls: 94) ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of global variables per state: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of assumptions: 196 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 469 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.008s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 PredicateCPA statistics ----------------------- Number of abstractions: 165 (38% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 70 (42%) Because of loop head: 0 (0%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 0 (0%) Times precision was empty: 78 (47%) Times precision was {false}: 19 (12%) Times result was cached: 2 (1%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 66 (40%) Times result was 'false': 8 (5%) Number of strengthen sat checks: 0 Number of coverage checks: 72 BDD entailment checks: 16 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 7 Avg ABE block size: 2.39 (sum: 394, count: 165, min: 0, max: 7) Number of predicates discovered: 65 Number of abstraction locations: 0 Max number of predicates per location: 0 Avg number of predicates per location: 0 Total predicates per abstraction: 983 Max number of predicates per abstraction: 26 Avg number of predicates per abstraction: 11.56 Number of irrelevant predicates: 150 (15%) Number of preds handled by boolean abs: 811 (83%) Total number of models for allsat: 859 Max number of models for allsat: 141 Avg number of models for allsat: 13.02 Time for post operator: 0.068s Time for path formula creation: 0.065s Time for strengthen operator: 0.001s Time for prec operator: 877.970s Time for abstraction: 877.963s (Max: 211.321s, Count: 165) Boolean abstraction: 873.567s Solving time: 33.138s (Max: 1.893s) Model enumeration time: 839.349s Time for BDD construction: 0.088s (Max: 0.001s) Time for merge operator: 0.000s Time for coverage checks: 0.001s Time for BDD entailment checks: 0.001s Total time for SMT solver (w/o itp): 872.488s Number of path formula cache hits: 572 (63%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.094s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 29975 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 2.15 (sum: 9832, count: 4568, min: 0, max: 2156) Time for BDD node cleanup: 0.002s 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: 0.013s Automaton transfers with branching: 0 Automaton transfer successors: 0.99 (sum: 427, count: 433, min: 0, max: 1) [0 x 6, 1 x 427] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 7 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 7, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 7, min: 0, max: 0) Number of computed successors: 6 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 6 Total time for CPA algorithm: 878.409s (Max: 797.314s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 878.409s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 6 Number of finished refinement: 3 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 3 Number of finished refinement: 3 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 6 Number of targets found: 6 (count: 6, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.113s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 3 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.006s Number of interpolations: 3 Number of interpolation queries: 9 (count: 126, min: 0, max: 2, avg: 0.07) Size of interpolant: 0.07 (sum: 9, count: 126, min: 0, max: 1) Number of sliced prefixes: 3 (count: 3, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.017s Selecting infeasible sliced prefixes: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 24.00 (sum: 72, count: 3, min: 14, max: 34) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 14.567s Path-formulas extraction: 0.046s Counterexample analysis: 14.213s (Max: 13.269s, Calls: 3) Refinement sat check: 0.146s Interpolant computation: 14.061s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.288s Precision update: 0.003s ARG update: 0.012s Length of refined path (in blocks): 21.00 (sum: 63, count: 3, min: 11, max: 31) Number of affected states: 39 (count: 3, min: 5, max: 21, avg: 13.00) Length (states) of path with itp 'true': 21 (count: 3, min: 5, max: 9, avg: 7.00) Length (states) of path with itp non-trivial itp: 39 (count: 3, min: 5, max: 21, avg: 13.00) Length (states) of path with itp 'false': 3 (count: 3, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 19 (count: 3, min: 1, max: 12, avg: 6.33) Equal non-trivial interpolants along paths: 17 (count: 3, min: 3, max: 8, avg: 5.67) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 6 Number of successful refinements: 6 Number of failed refinements: 0 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 893.130s Time for refinements: 14.721s Average time for refinement: 2.453s Max time for refinement: 13.457s CPA algorithm statistics ------------------------ Number of iterations: 7 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 7, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 7, min: 0, max: 0) Number of computed successors: 6 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 6 Total time for CPA algorithm: 878.409s (Max: 797.314s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 878.409s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 6 Number of finished refinement: 3 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 3 Number of finished refinement: 3 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 6 Number of targets found: 6 (count: 6, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.113s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 3 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.006s Number of interpolations: 3 Number of interpolation queries: 9 (count: 126, min: 0, max: 2, avg: 0.07) Size of interpolant: 0.07 (sum: 9, count: 126, min: 0, max: 1) Number of sliced prefixes: 3 (count: 3, min: 1, max: 1, avg: 1.00) Extracting infeasible sliced prefixes: 0.017s Selecting infeasible sliced prefixes: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 24.00 (sum: 72, count: 3, min: 14, max: 34) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 14.567s Path-formulas extraction: 0.046s Counterexample analysis: 14.213s (Max: 13.269s, Calls: 3) Refinement sat check: 0.146s Interpolant computation: 14.061s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.288s Precision update: 0.003s ARG update: 0.012s Length of refined path (in blocks): 21.00 (sum: 63, count: 3, min: 11, max: 31) Number of affected states: 39 (count: 3, min: 5, max: 21, avg: 13.00) Length (states) of path with itp 'true': 21 (count: 3, min: 5, max: 9, avg: 7.00) Length (states) of path with itp non-trivial itp: 39 (count: 3, min: 5, max: 21, avg: 13.00) Length (states) of path with itp 'false': 3 (count: 3, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 19 (count: 3, min: 1, max: 12, avg: 6.33) Equal non-trivial interpolants along paths: 17 (count: 3, min: 3, max: 8, avg: 5.67) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 6 Number of successful refinements: 6 Number of failed refinements: 0 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 893.130s Time for refinements: 14.721s Average time for refinement: 2.453s Max time for refinement: 13.457s CPAchecker general statistics ----------------------------- Number of program locations: 87 Number of CFA edges (per node): 104 (count: 87, min: 0, max: 3, avg: 1.20) Number of relevant variables: 24 Number of functions: 5 Number of loops (and loop nodes): 0 (sum: 0, min: 0, max: 0, avg: 0.00) Size of reached set: 1 Number of reached locations: 1 (1%) Avg states per location: 1 Max states per location: 1 (at node N53) Number of reached functions: 1 (20%) Number of target states: 0 Size of final wait list: 1 Time for analysis setup: 1.177s Time for loading CPAs: 0.360s Time for loading parser: 0.209s Time for CFA construction: 0.577s Time for parsing file(s): 0.263s Time for AST to CFA: 0.149s Time for CFA sanity check: 0.000s Time for post-processing: 0.115s Time for loop structure: 0.002s Time for AST structure: 0.000s Time for function pointers resolving: 0.003s 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: 0.080s Time for collecting variables: 0.051s Time for solving dependencies: 0.001s Time for building hierarchy: 0.000s Time for building classification: 0.026s Time for exporting data: 0.000s Time for Analysis: 893.835s CPU time for analysis: 897.670s Total time for CPAchecker: 895.014s Total CPU time for CPAchecker: 899.910s Time for statistics: 0.059s Time for Garbage Collector: 0.161s (in 42 runs) Garbage Collector(s) used: G1 Old Generation, G1 Young Generation Verification result: UNKNOWN, incomplete analysis. could not compute full reached set graph, there is no exit state (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:BAMARGStatistics.isValidContext, WARNING) More details about the verification run can be found in the directory "./output".