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_egcd2-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_egcd2-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_39_to_65_0 to func_to_recursive_line_39_to_65_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) Skipping recursive function call from func_to_recursive_line_45_to_53_0 to func_to_recursive_line_45_to_53_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 66: Unsupported feature (recursion): func_to_recursive_line_45_to_53_0(c, yy, y, s, k, x, q, b, r, a, p, xy);) (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: 0.565s PredicateCPA statistics ----------------------- Number of abstractions: 4 (3% 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: 4 (100%) Times precision was empty: 4 (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: 45 Avg ABE block size: 42.00 (sum: 168, count: 4, min: 39, max: 45) Number of predicates discovered: 0 Time for post operator: 0.130s Time for path formula creation: 0.128s Time for strengthen operator: 0.002s Time for prec operator: 0.001s Time for abstraction: 0.000s (Max: 0.000s, Count: 4) 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: 0.14 (sum: 16, count: 118, min: 0, max: 1) Number of global variables per state: 0.00 (sum: 0, count: 118, min: 0, max: 0) Number of assumptions: 20 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 117 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s 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: 0.94 (sum: 117, count: 125, min: 0, max: 1) [0 x 8, 1 x 117] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 116 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.23 (sum: 20, count: 86, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 86, min: 0, max: 0) LoopIterationSortedWaitlist: 0.23 (sum: 20, count: 86, min: 0, max: 3) CallstackSortedWaitlist: 30.00 (sum: 30, count: 1, min: 30, max: 30) Number of computed successors: 117 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: 0.203s (Max: 0.203s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.019s Time for transfer relation: 0.175s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.205s CPA algorithm statistics ------------------------ Number of iterations: 116 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.23 (sum: 20, count: 86, min: 0, max: 3) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 86, min: 0, max: 0) LoopIterationSortedWaitlist: 0.23 (sum: 20, count: 86, min: 0, max: 3) CallstackSortedWaitlist: 30.00 (sum: 30, count: 1, min: 30, max: 30) Number of computed successors: 117 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: 0.203s (Max: 0.203s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.019s Time for transfer relation: 0.175s Time for stop operator: 0.000s Time for adding to reached set: 0.003s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.205s 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) 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 not completed. (Refinement failed: Interpolation failed in solver MATHSAT5 with message 'can't build ie-local interpolant'.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RefinementFailedException.forInterpolationFailureInSolver, WARNING) Statistics for algorithm 3 of 4 =============================== Total time for algorithm 3: 3.598s BAMCPA statistics ----------------- Number of blocks: 6 Max reached nesting level: 4 Time for building block partitioning: 0.012s Time for reducing abstract states: 0.003s Time for expanding abstract states: 0.012s Time for reducing precisions: 0.001s Time for expanding precisions: 0.000s Number of created nested algortihms: 5 Nesting level of target states with caching: 2.00 (#=5, min=0, max=4, hist=[0, 1, 2, 3, 4]) Nesting level of target states without caching: 4.00 (#=5, min=4, max=4, hist=[4 x 5]) BAM-based Refinement: Compute path for refinement: 0.009s Constructing flat ARG: 0.002s Searching path to error location: 0.007s Removing cached subtrees: 0.000s Number of refinements with a missing block: 0 Number of started refinements: 1 Number of spurious counterexamples: 0 Number of precise counterexamples: 0 Block statistics: Analyzed blocks: 5 Avg. time for block analysis: 0.689s Mean time for block analysis: 0.015s Min time for block analysis: 0.006s Max time for block analysis: 3.388s StdDev time for block analysis: 1.349s Total time for block analysis: 3.449s Time for main block: 3.388s ([N61]) BAMCache statistics ------------------- Total size of all ARGs: 79 (#=5, avg=15.80, dev=17.22, min=5, max=50) Total number of recursive CPA calls: 8 Number of cache misses: 5 (63% of all calls) Number of partial cache hits: 0 (0% of all calls) Number of full cache hits: 3 (38% of all calls) Time for checking equality of abstract states: 0.000s (Calls: 3) Time for computing the hashCode of abstract states: 0.001s (Calls: 12) 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: 6 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 75 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s 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: 23 (34% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 12 (52%) 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: 23 (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: 14 Avg ABE block size: 2.00 (sum: 46, count: 23, min: 0, max: 14) Number of predicates discovered: 0 Time for post operator: 0.055s Time for path formula creation: 0.054s Time for strengthen operator: 0.002s Time for prec operator: 0.003s Time for abstraction: 0.000s (Max: 0.000s, Count: 23) 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 Number of path formula cache hits: 33 (22%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.092s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 202 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 80, min: 0, max: 0) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.99 (sum: 67, count: 68, min: 0, max: 1) [0, 1 x 67] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 1 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of computed successors: 1 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 1 Total time for CPA algorithm: 0.118s (Max: 0.118s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.118s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 1 Number of finished refinement: 0 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 1 Number of finished refinement: 0 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.020s 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: 1 Avg. length of target path (in blocks): 21.00 (sum: 21, count: 1, min: 21, max: 21) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 3.277s Path-formulas extraction: 0.051s Counterexample analysis: 3.224s (Max: 3.224s, Calls: 1) Refinement sat check: 1.731s Interpolant computation: 0.969s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 0 Number of failed refinements: 1 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 3.445s Time for refinements: 3.327s Average time for refinement: 3.327s Max time for refinement: 3.327s CPA algorithm statistics ------------------------ Number of iterations: 1 Max size of waitlist: 1 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) CallstackSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of computed successors: 1 Max successors for one state: 1 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 1 Total time for CPA algorithm: 0.118s (Max: 0.118s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.118s Time for stop operator: 0.000s Time for adding to reached set: 0.000s DelegatingARGBasedRefiner statistics ------------------------------------ Analysis 1 (ValueAnalysisRefiner): Number of selected refinement: 1 Number of finished refinement: 0 Analysis 2 (PredicateCPARefiner): Number of selected refinement: 1 Number of finished refinement: 0 ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.020s 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: 1 Avg. length of target path (in blocks): 21.00 (sum: 21, count: 1, min: 21, max: 21) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 3.277s Path-formulas extraction: 0.051s Counterexample analysis: 3.224s (Max: 3.224s, Calls: 1) Refinement sat check: 1.731s Interpolant computation: 0.969s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 0 Number of failed refinements: 1 Max. size of reached set before ref.: 2 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 2.00 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 3.445s Time for refinements: 3.327s Average time for refinement: 3.327s Max time for refinement: 3.327s 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 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restartcomponent-predicateAnalysis-end.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--configselection-restartcomponent-predicateAnalysis-end.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (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--configselection-restartcomponent-predicateAnalysis-end.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--configselection-restartcomponent-predicateAnalysis-end.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy 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--configselection-restartcomponent-predicateAnalysis-end.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restart-bmc-fallbacks.properties:RestartAlgorithm.run, INFO) Shutdown requested (The JVM is shutting down, probably because Ctrl+C was pressed.), waiting for termination. (ForceTerminationOnShutdown$1.shutdownRequested, 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: 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: 0.5455 Program containing external functions: true Number of all righthand side functions: 8 Restart Algorithm statistics ---------------------------- Number of algorithms provided: 4 Number of algorithms used: 4 Last algorithm used: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--configselection-restartcomponent-predicateAnalysis-end.properties Total time for algorithm 4: 889.972s PredicateCPA statistics ----------------------- Number of abstractions: 7 (6% 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: 7 (100%) Times precision was empty: 4 (57%) Times precision was {false}: 3 (43%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 0 (0%) Times result was 'false': 3 (43%) 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: 45 Avg ABE block size: 41.57 (sum: 291, count: 7, min: 39, max: 45) Number of predicates discovered: 1 Number of abstraction locations: 1 Max number of predicates per location: 1 Avg number of predicates per location: 1 Total predicates per abstraction: 3 Max number of predicates per abstraction: 1 Avg number of predicates per abstraction: 1.00 Number of irrelevant predicates: 3 (100%) Time for post operator: 0.049s Time for path formula creation: 0.049s Time for strengthen operator: 0.003s Time for prec operator: 0.962s Time for abstraction: 0.961s (Max: 0.508s, Count: 7) Solving time: 0.862s (Max: 0.463s) 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): 0.862s Number of path formula cache hits: 3 (3%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.047s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 202 Size of BDD node table: 524309 Size of BDD cache: 52433 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 24, min: 0, max: 0) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.005s Automaton transfers with branching: 0 Automaton transfer successors: 0.97 (sum: 112, count: 116, min: 0, max: 1) [0 x 4, 1 x 112] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 71 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 45, min: 0, max: 0) CallstackSortedWaitlist: 20.00 (sum: 80, count: 4, min: 14, max: 26) Number of computed successors: 76 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 4 Total time for CPA algorithm: 1.045s (Max: 0.517s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.965s Time for transfer relation: 0.073s Time for stop operator: 0.001s Time for adding to reached set: 0.006s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 4 Avg. length of target path (in blocks): 1.00 (sum: 4, count: 4, min: 1, max: 1) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 888.887s Path-formulas extraction: 0.001s Counterexample analysis: 888.878s (Max: 887.942s, Calls: 4) Refinement sat check: 888.704s Interpolant computation: 0.000s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.005s ARG update: 0.001s Length of refined path (in blocks): 1.00 (sum: 3, count: 3, min: 1, max: 1) Number of affected states: 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 3, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 3, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 3, 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.: 71 Max. size of reached set after ref.: 62 Avg. size of reached set before ref.: 59.00 Avg. size of reached set after ref.: 54.00 Total time for CEGAR algorithm: 889.937s Time for refinements: 888.892s Average time for refinement: 222.223s Max time for refinement: 887.945s CPA algorithm statistics ------------------------ Number of iterations: 71 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 45, min: 0, max: 0) CallstackSortedWaitlist: 20.00 (sum: 80, count: 4, min: 14, max: 26) Number of computed successors: 76 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 4 Total time for CPA algorithm: 1.045s (Max: 0.517s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.965s Time for transfer relation: 0.073s Time for stop operator: 0.001s Time for adding to reached set: 0.006s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 4 Avg. length of target path (in blocks): 1.00 (sum: 4, count: 4, min: 1, max: 1) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 888.887s Path-formulas extraction: 0.001s Counterexample analysis: 888.878s (Max: 887.942s, Calls: 4) Refinement sat check: 888.704s Interpolant computation: 0.000s Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.005s ARG update: 0.001s Length of refined path (in blocks): 1.00 (sum: 3, count: 3, min: 1, max: 1) Number of affected states: 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 3, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 3, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 3, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 3, 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.: 71 Max. size of reached set after ref.: 62 Avg. size of reached set before ref.: 59.00 Avg. size of reached set after ref.: 54.00 Total time for CEGAR algorithm: 889.937s Time for refinements: 888.892s Average time for refinement: 222.223s Max time for refinement: 887.945s CPAchecker general statistics ----------------------------- Number of program locations: 101 Number of CFA edges (per node): 124 (count: 101, min: 0, max: 6, avg: 1.23) Number of relevant variables: 44 Number of functions: 6 Number of loops (and loop nodes): 0 (sum: 0, min: 0, max: 0, avg: 0.00) Size of reached set: 71 Number of reached locations: 33 (33%) Avg states per location: 2 Max states per location: 4 (at node N4) Number of reached functions: 6 (100%) Number of target states: 1 Size of final wait list: 3 Time for analysis setup: 1.379s Time for loading CPAs: 0.423s Time for loading parser: 0.218s Time for CFA construction: 0.683s Time for parsing file(s): 0.327s Time for AST to CFA: 0.166s Time for CFA sanity check: 0.001s Time for post-processing: 0.135s Time for loop structure: 0.004s Time for AST structure: 0.000s Time for function pointers resolving: 0.004s Function calls via function pointers: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer calls: 0 (count: 1, min: 0, max: 0, avg: 0.00) Function calls with function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Time for classifying variables: 0.091s Time for collecting variables: 0.062s Time for solving dependencies: 0.001s Time for building hierarchy: 0.000s Time for building classification: 0.028s Time for exporting data: 0.000s Time for Analysis: 894.243s CPU time for analysis: 896.670s Total time for CPAchecker: 895.625s Total CPU time for CPAchecker: 899.360s Time for statistics: 0.026s Time for Garbage Collector: 0.041s (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--configselection-restartcomponent-predicateAnalysis-end.properties:ARGCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".