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/recursified_nla-digbench/recursified_sqrt1-ll.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/recursified_nla-digbench/recursified_sqrt1-ll.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 func_to_recursive_line_29_to_40_0 to func_to_recursive_line_29_to_40_0 (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 67: Unsupported feature (recursion): func_to_recursive_line_29_to_40_0(a, t, n, s);) (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: 0.518s PredicateCPA statistics ----------------------- Number of abstractions: 3 (5% 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: 3 (100%) Times precision was empty: 3 (100%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 0 (0%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 15 Avg ABE block size: 13.00 (sum: 39, count: 3, min: 11, max: 15) Number of predicates discovered: 0 Time for post operator: 0.101s Time for path formula creation: 0.100s Time for strengthen operator: 0.003s Time for prec operator: 0.001s Time for abstraction: 0.000s (Max: 0.000s, Count: 3) Solving time: 0.000s (Max: 0.000s) Model enumeration time: 0.000s Time for BDD construction: 0.000s (Max: 0.000s) Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.000s 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: 0.16 (sum: 9, count: 56, min: 0, max: 1) Number of global variables per state: 0.00 (sum: 0, count: 56, min: 0, max: 0) Number of assumptions: 8 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 55 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: 0.004s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 55, count: 58, min: 0, max: 1) [0 x 3, 1 x 55] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 55 Max size of waitlist: 2 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.22 (sum: 9, count: 40, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 40, min: 0, max: 0) LoopIterationSortedWaitlist: 0.22 (sum: 9, count: 40, min: 0, max: 3) CallstackSortedWaitlist: 15.00 (sum: 15, count: 1, min: 15, max: 15) Number of computed successors: 55 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.172s (Max: 0.172s) Time for choose from waitlist: 0.006s Time for precision adjustment: 0.014s Time for transfer relation: 0.145s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.174s CPA algorithm statistics ------------------------ Number of iterations: 55 Max size of waitlist: 2 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.22 (sum: 9, count: 40, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 40, min: 0, max: 0) LoopIterationSortedWaitlist: 0.22 (sum: 9, count: 40, min: 0, max: 3) CallstackSortedWaitlist: 15.00 (sum: 15, count: 1, min: 15, max: 15) Number of computed successors: 55 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.172s (Max: 0.172s) Time for choose from waitlist: 0.006s Time for precision adjustment: 0.014s Time for transfer relation: 0.145s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.174s 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) 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: 0.0769 Requires alias handling: 1 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: 0.3077 Program containing external functions: true Number of all righthand side functions: 5 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: 893.891s BAMCPA statistics ----------------- Number of blocks: 4 Max reached nesting level: 3 Time for building block partitioning: 0.008s Time for reducing abstract states: 0.034s Time for expanding abstract states: 0.020s Time for reducing precisions: 0.005s Time for expanding precisions: 0.004s Number of created nested algortihms: 11 Nesting level of target states with caching: 1.50 (#=12, min=0, max=3, hist=[0 x 3, 1 x 3, 2 x 3, 3 x 3]) Nesting level of target states without caching: 3.00 (#=12, min=3, max=3, hist=[3 x 12]) BAM-based Refinement: Compute path for refinement: 0.009s Constructing flat ARG: 0.005s Searching path to error location: 0.004s Removing cached subtrees: 0.006s Number of refinements with a missing block: 0 Number of started refinements: 3 Number of spurious counterexamples: 2 Number of precise counterexamples: 0 Block statistics: Analyzed blocks: 3 Avg. time for block analysis: 297.918s Mean time for block analysis: 0.645s Min time for block analysis: 0.050s Max time for block analysis: 893.059s StdDev time for block analysis: 420.828s Total time for block analysis: 893.754s Time for main block: 893.059s ([N38]) BAMCache statistics ------------------- Total size of all ARGs: 78 (#=9, avg=8.67, dev=4.64, min=5, max=21) Total number of recursive CPA calls: 12 Number of cache misses: 9 (75% of all calls) Number of partial cache hits: 2 (17% of all calls) Number of full cache hits: 1 (8% of all calls) Time for checking equality of abstract states: 0.000s (Calls: 5) Time for computing the hashCode of abstract states: 0.002s (Calls: 22) ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.00 (sum: 0, count: 2, min: 0, max: 0) Number of global variables per state: 0.00 (sum: 0, count: 2, min: 0, max: 0) Number of assumptions: 10 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 80 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 PredicateCPA statistics ----------------------- Number of abstractions: 31 (46% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 15 (48%) 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: 12 (39%) Times precision was {false}: 5 (16%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 14 (45%) Times result was 'false': 2 (6%) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 8 Avg ABE block size: 1.71 (sum: 53, count: 31, min: 0, max: 8) Number of predicates discovered: 199 Number of abstraction locations: 7 Max number of predicates per location: 192 Avg number of predicates per location: 28 Total predicates per abstraction: 340 Max number of predicates per abstraction: 192 Avg number of predicates per abstraction: 17.89 Number of irrelevant predicates: 5 (1%) Number of preds handled by boolean abs: 335 (99%) Total number of models for allsat: 16 Max number of models for allsat: 2 Avg number of models for allsat: 1.14 Time for post operator: 0.022s Time for path formula creation: 0.022s Time for strengthen operator: 0.000s Time for prec operator: 0.783s Time for abstraction: 0.781s (Max: 0.179s, Count: 31) Boolean abstraction: 0.625s Solving time: 0.421s (Max: 0.055s) Model enumeration time: 0.176s Time for BDD construction: 0.019s (Max: 0.009s) Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.597s Number of path formula cache hits: 138 (68%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.027s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 19716 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 1696, min: 0, max: 0) Time for BDD node cleanup: 0.001s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.002s Automaton transfers with branching: 0 Automaton transfer successors: 1.00 (sum: 68, count: 68, min: 1, max: 1) [1 x 68] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 3 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 3, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 3, min: 0, max: 0) Number of computed successors: 3 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 3 Total time for CPA algorithm: 0.927s (Max: 0.663s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.927s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 3 Number of finished refinement: 0 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 3 Number of finished refinement: 2 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 3 Number of targets found: 3 (count: 3, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.032s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 9.00 (sum: 27, count: 3, min: 6, max: 12) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 892.763s Path-formulas extraction: 0.013s Counterexample analysis: 892.673s (Max: 892.295s, Calls: 3) Refinement sat check: 0.163s Interpolant computation: 892.497s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.058s Precision update: 0.007s ARG update: 0.009s Length of refined path (in blocks): 6.50 (sum: 13, count: 2, min: 5, max: 8) Number of affected states: 10 (count: 2, min: 4, max: 6, avg: 5.00) Length (states) of path with itp 'true': 1 (count: 2, min: 0, max: 1, avg: 0.50) Length (states) of path with itp non-trivial itp: 10 (count: 2, min: 4, max: 6, avg: 5.00) Length (states) of path with itp 'false': 2 (count: 2, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 6 (count: 2, min: 3, max: 3, avg: 3.00) Equal non-trivial interpolants along paths: 2 (count: 2, min: 0, max: 2, avg: 1.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 3 Number of successful refinements: 2 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: 893.748s Time for refinements: 892.821s Average time for refinement: 297.607s Max time for refinement: 892.306s CPA algorithm statistics ------------------------ Number of iterations: 3 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 3, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 3, min: 0, max: 0) Number of computed successors: 3 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 3 Total time for CPA algorithm: 0.927s (Max: 0.663s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.927s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 3 Number of finished refinement: 0 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 3 Number of finished refinement: 2 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 3 Number of targets found: 3 (count: 3, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.032s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 3 Avg. length of target path (in blocks): 9.00 (sum: 27, count: 3, min: 6, max: 12) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 892.763s Path-formulas extraction: 0.013s Counterexample analysis: 892.673s (Max: 892.295s, Calls: 3) Refinement sat check: 0.163s Interpolant computation: 892.497s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.058s Precision update: 0.007s ARG update: 0.009s Length of refined path (in blocks): 6.50 (sum: 13, count: 2, min: 5, max: 8) Number of affected states: 10 (count: 2, min: 4, max: 6, avg: 5.00) Length (states) of path with itp 'true': 1 (count: 2, min: 0, max: 1, avg: 0.50) Length (states) of path with itp non-trivial itp: 10 (count: 2, min: 4, max: 6, avg: 5.00) Length (states) of path with itp 'false': 2 (count: 2, min: 1, max: 1, avg: 1.00) Different non-trivial interpolants along paths: 6 (count: 2, min: 3, max: 3, avg: 3.00) Equal non-trivial interpolants along paths: 2 (count: 2, min: 0, max: 2, avg: 1.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 3 Number of successful refinements: 2 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: 893.748s Time for refinements: 892.821s Average time for refinement: 297.607s Max time for refinement: 892.306s CPAchecker general statistics ----------------------------- Number of program locations: 60 Number of CFA edges (per node): 71 (count: 60, min: 0, max: 6, avg: 1.18) Number of relevant variables: 13 Number of functions: 5 Number of loops (and loop nodes): 0 (sum: 0, min: 0, max: 0, avg: 0.00) Size of reached set: 2 Number of reached locations: 2 (3%) Avg states per location: 1 Max states per location: 1 (at node N1) Number of reached functions: 2 (40%) Number of target states: 1 Size of final wait list: 1 Time for analysis setup: 1.290s Time for loading CPAs: 0.404s Time for loading parser: 0.218s Time for CFA construction: 0.625s Time for parsing file(s): 0.302s Time for AST to CFA: 0.167s Time for CFA sanity check: 0.000s Time for post-processing: 0.103s Time for loop structure: 0.006s 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: 0.062s Time for collecting variables: 0.035s 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: 894.503s CPU time for analysis: 896.830s Total time for CPAchecker: 895.798s Total CPU time for CPAchecker: 899.370s Time for statistics: 0.047s Time for Garbage Collector: 0.036s (in 6 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--configselection-restart-bmc-fallbacks.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties:BAMCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".