cpachecker/bin/cpachecker --svcomp24 --heap 10000M --benchmark --option cpa.arg.yamlProofWitness=witness-%s.yml --option witness.yamlexporter.witnessVersions=V2d1,V2 --timelimit 900s --stats --spec sv-benchmarks/c/properties/unreach-call.prp --32 sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 10000M. Running CPAchecker with default stack size (1024k). Specify a larger value with --stack if needed. Language C detected and set for analysis (CPAMain.detectFrontendLanguageIfNecessary, INFO) Using the following resource limits: CPU-time limit of 900s (ResourceLimitChecker.fromConfiguration, INFO) CPAchecker 3.1-svn-5f8d539e99+ / svcomp24 (OpenJDK 64-Bit Server VM 17.0.9) started (CPAchecker.run, INFO) Parsing CFA from file(s) "sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c" (CPAchecker.parse, INFO) Using heuristics to select analysis (CoreComponentsFactory.createAlgorithm, INFO) The following configuration options were specified but are not used: cpa.callstack.unsupportedFunctions termination.violation.witness cpa.predicate.memoryAllocationsAlwaysSucceed cpa.arg.compressWitness cpa.arg.yamlProofWitness cpa.callstack.skipFunctionPointerRecursion counterexample.export.yaml cpa.composite.aggregateBasicBlocks counterexample.export.graphml counterexample.export.compressWitness cpa.arg.proofWitness witness.yamlexporter.witnessVersions (CPAchecker.printConfigurationWarnings, WARNING) Starting analysis ... (CPAchecker.runAlgorithm, INFO) Performing heuristic ... (SelectionAlgorithm.chooseConfig, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ResourceLimitChecker.fromConfiguration, INFO) Using Restarting Algorithm (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:CoreComponentsFactory.createAlgorithm, INFO) Loading analysis 1 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu' has two values '900s' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu::required' has two values '900' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 140s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 1 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 1 stopped. (The CPU-time limit of 140s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 1 of 7 =============================== Total time for algorithm 1: 140.130s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 7.24 (sum: 239, count: 33, min: 0, max: 9) Number of global variables per state: 0.94 (sum: 31, count: 33, min: 0, max: 1) Number of assumptions: 13 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 32 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 204 (count: 32, min: 0, max: 7, avg: 6.38) Symbolic values after refinement: 204 (count: 32, min: 0, max: 7, avg: 6.38) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 139.915s Time for SMT check: 139.861s Time for resolving definites: 0.007s Cache lookups: 11 Direct cache hits: 1 Direct cache lookup time: 0.001s Number of removed outdated constraints: 0 (count: 10, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.011s Constraints after refinement in state: 76 (count: 32, min: 0, max: 4, avg: 2.38) Constraints before refinement in state: 76 (count: 32, min: 0, max: 4, avg: 2.38) Time for constraints adjustment: 0.002s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.006s Automaton transfers with branching: 0 Automaton transfer successors: 0.93 (sum: 53, count: 57, min: 0, max: 1) [0 x 4, 1 x 53] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 33 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 32 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 139.974s (Max: 139.974s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.007s Time for transfer relation: 139.964s Time for stop operator: 0.001s Time for adding to reached set: 0.000s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 33 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 32 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 139.974s (Max: 139.974s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.007s Time for transfer relation: 139.964s Time for stop operator: 0.001s Time for adding to reached set: 0.000s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Warning: Analysis 2 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 59.656s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.00 (sum: 0, count: 40, min: 0, max: 0) Number of global variables per state: 0.00 (sum: 0, count: 40, min: 0, max: 0) Number of assumptions: 12 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 39 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.000s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.94 (sum: 59, count: 63, min: 0, max: 1) [0 x 4, 1 x 59] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 37 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 39 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 1 Total time for CPA algorithm: 0.011s (Max: 0.011s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.003s Time for transfer relation: 0.005s Time for stop operator: 0.000s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.014s 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 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 0 Number of failed refinements: 0 Max. size of reached set before ref.: 40 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 40.00 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 0.042s Time for refinements: 0.031s Average time for refinement: 0.031s Max time for refinement: 0.031s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 1 Number of infeasible paths: 0 (0%) Time for counterexample checks: 59.581s CPA algorithm statistics ------------------------ Number of iterations: 37 Max size of waitlist: 3 Average size of waitlist: 1 Number of computed successors: 39 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 1 Total time for CPA algorithm: 0.011s (Max: 0.011s) Time for choose from waitlist: 0.002s Time for precision adjustment: 0.003s Time for transfer relation: 0.005s Time for stop operator: 0.000s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 1 Number of targets found: 1 (count: 1, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.014s 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 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 1 Number of successful refinements: 0 Number of failed refinements: 0 Max. size of reached set before ref.: 40 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 40.00 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 0.042s Time for refinements: 0.031s Average time for refinement: 0.031s Max time for refinement: 0.031s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 1 Number of infeasible paths: 0 (0%) Time for counterexample checks: 59.581s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant) and JFactory 1.21. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 3 stopped. (The CPU-time limit of 200s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 200.123s 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: 2 (50%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 2 (50%) 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: 21 Avg ABE block size: 13.00 (sum: 52, count: 4, min: 5, max: 21) Number of predicates discovered: 1 Number of abstraction locations: 0 Max number of predicates per location: 0 Avg number of predicates per location: 0 Time for post operator: 0.015s Time for path formula creation: 0.014s Time for strengthen operator: 0.001s 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 Number of path formula cache hits: 63 (50%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.012s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 202 Size of BDD node table: 524309 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 6, 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: 0.93 (sum: 114, count: 122, min: 0, max: 1) [0 x 8, 1 x 114] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 70 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 56, min: 0, max: 0) CallstackSortedWaitlist: 10.50 (sum: 21, count: 2, min: 7, max: 14) Number of computed successors: 74 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 2 Total time for CPA algorithm: 0.031s (Max: 0.026s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.025s Time for stop operator: 0.001s Time for adding to reached set: 0.001s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.006s Time for path feasibility check: 0.002s Time for predicate extraction from CFA: 0.003s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 1 Avg. length of target path (in blocks): 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 200.027s Path-formulas extraction: 0.000s Counterexample analysis: 200.028s (Max: 200.026s, Calls: 2) Refinement sat check: 200.016s Interpolant computation: 0.000s 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: 2 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 38 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 38.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 200.066s Time for refinements: 200.035s Average time for refinement: 100.017s Max time for refinement: 200.028s CPA algorithm statistics ------------------------ Number of iterations: 70 Max size of waitlist: 3 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 56, min: 0, max: 0) CallstackSortedWaitlist: 10.50 (sum: 21, count: 2, min: 7, max: 14) Number of computed successors: 74 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 2 Total time for CPA algorithm: 0.031s (Max: 0.026s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.002s Time for transfer relation: 0.025s Time for stop operator: 0.001s Time for adding to reached set: 0.001s Static Predicate Refiner statistics ----------------------------------- Number of predicates found statically: 1 (count: 1, min: 1, max: 1, avg: 1.00) Total time for static refinement: 0.006s Time for path feasibility check: 0.002s Time for predicate extraction from CFA: 0.003s Time for ARG update: 0.001s PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 1 Avg. length of target path (in blocks): 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of infeasible sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Time for refinement: 200.027s Path-formulas extraction: 0.000s Counterexample analysis: 200.028s (Max: 200.026s, Calls: 2) Refinement sat check: 200.016s Interpolant computation: 0.000s 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: 2 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 38 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 38.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 200.066s Time for refinements: 200.035s Average time for refinement: 100.017s Max time for refinement: 200.028s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 0.995s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.027s Automaton transfers with branching: 0 Automaton transfer successors: 0.94 (sum: 1808, count: 1930, min: 0, max: 1) [0 x 122, 1 x 1808] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 1695 Max size of waitlist: 9 Average size of waitlist: 5 ReversePostorderSortedWaitlist: 416.00 (sum: 416, count: 1, min: 416, max: 416) Number of computed successors: 1808 Max successors for one state: 2 Number of times merged: 9 Number of times stopped: 114 Number of times breaked: 0 Total time for CPA algorithm: 0.918s (Max: 0.918s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.011s Time for transfer relation: 0.359s Time for merge operator: 0.390s Time for stop operator: 0.133s Time for adding to reached set: 0.004s CPA algorithm statistics ------------------------ Number of iterations: 1695 Max size of waitlist: 9 Average size of waitlist: 5 ReversePostorderSortedWaitlist: 416.00 (sum: 416, count: 1, min: 416, max: 416) Number of computed successors: 1808 Max successors for one state: 2 Number of times merged: 9 Number of times stopped: 114 Number of times breaked: 0 Total time for CPA algorithm: 0.918s (Max: 0.918s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.011s Time for transfer relation: 0.359s Time for merge operator: 0.390s Time for stop operator: 0.133s Time for adding to reached set: 0.004s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 5 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:PredicateCPA:PredicateCPA., INFO) Starting analysis 5 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Shutdown requested (The JVM is shutting down, probably because Ctrl+C was pressed.), waiting for termination. (ForceTerminationOnShutdown$1.shutdownRequested, WARNING) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties' because condition if-recursive did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties' because condition if-concurrent did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Warning: Analysis interrupted (The JVM is shutting down, probably because Ctrl+C was pressed.) (ShutdownNotifier.shutdownIfNecessary, WARNING) Selection Algorithm statistics ------------------------------ Size of preliminary analysis reached set: 0 Used algorithm property: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties Program containing only relevant bools: 0 Relevant boolean vars / relevant vars ratio: 0.0000 Requires alias handling: 0 Requires loop handling: 1 Has a single loop: 1 Requires composite-type handling: 0 Requires array handling: 0 Requires float handling: 0 Requires recursion handling: 0 Relevant addressed vars / relevant vars ratio: 0.0000 Program containing external functions: true Number of all righthand side functions: 6 Restart Algorithm statistics ---------------------------- Number of algorithms provided: 7 Number of algorithms used: 7 Last algorithm used: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties Total time for algorithm 7: 494.641s PredicateCPA statistics ----------------------- Number of abstractions: 4 (5% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 2 (50%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Because of target state: 2 (50%) 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: 4 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 21 Avg ABE block size: 10.75 (sum: 43, count: 4, min: 5, max: 21) Number of predicates discovered: 0 Time for post operator: 0.007s Time for path formula creation: 0.007s Time for strengthen operator: 0.002s Time for prec operator: 0.000s 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 merge operator: 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: 2 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.001s Automaton transfers with branching: 0 Automaton transfer successors: 0.93 (sum: 80, count: 86, min: 0, max: 1) [0 x 6, 1 x 80] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 79 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.24 (sum: 14, count: 59, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 59, min: 0, max: 0) LoopIterationSortedWaitlist: 0.24 (sum: 14, count: 59, min: 0, max: 6) CallstackSortedWaitlist: 20.00 (sum: 20, count: 1, min: 20, max: 20) Number of computed successors: 80 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 2 Number of times breaked: 0 Total time for CPA algorithm: 0.022s (Max: 0.022s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.001s Time for transfer relation: 0.014s Time for merge operator: 0.000s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.024s Time for final sat check: 494.560s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 79 Max size of waitlist: 3 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.24 (sum: 14, count: 59, min: 0, max: 6) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 59, min: 0, max: 0) LoopIterationSortedWaitlist: 0.24 (sum: 14, count: 59, min: 0, max: 6) CallstackSortedWaitlist: 20.00 (sum: 20, count: 1, min: 20, max: 20) Number of computed successors: 80 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 2 Number of times breaked: 0 Total time for CPA algorithm: 0.022s (Max: 0.022s) Time for choose from waitlist: 0.005s Time for precision adjustment: 0.001s Time for transfer relation: 0.014s Time for merge operator: 0.000s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.024s Time for final sat check: 494.560s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 63 Number of CFA edges (per node): 73 (count: 63, min: 0, max: 4, avg: 1.16) Number of relevant variables: 13 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 13, min: 13, max: 13, avg: 13.00) Size of reached set: 79 Number of reached locations: 56 (89%) Avg states per location: 1 Max states per location: 4 (at node N4) Number of reached functions: 4 (100%) Number of target states: 2 Time for analysis setup: 0.865s Time for loading CPAs: 0.263s Time for loading parser: 0.139s Time for CFA construction: 0.436s Time for parsing file(s): 0.222s Time for AST to CFA: 0.100s Time for CFA sanity check: 0.001s Time for post-processing: 0.076s Time for loop structure: 0.004s 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: 0.051s Time for collecting variables: 0.031s Time for solving dependencies: 0.000s Time for building hierarchy: 0.000s Time for building classification: 0.020s Time for exporting data: 0.000s Time for Analysis: 895.611s CPU time for analysis: 897.960s Total time for CPAchecker: 896.478s Total CPU time for CPAchecker: 899.590s Time for statistics: 0.019s Time for Garbage Collector: 0.062s (in 11 runs) Garbage Collector(s) used: G1 Old Generation, G1 Young Generation Verification result: UNKNOWN, incomplete analysis. Exporting witnesses in Version 2.1 is currently WIP. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ARGCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".