scripts/cpa.sh -heap 50000M -noout -disable-java-assertions -predicateAnalysis-PredAbsRefiner-ABEl -timelimit 900s -stats -spec test/programs/benchmarks/ssh-simplified/ALL.prp test/programs/benchmarks/ssh-simplified/s3_srvr_6_true-unreach-call.cil.c -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 50000M. Using the following resource limits: CPU-time limit of 900s (ResourceLimitChecker.fromConfiguration, INFO) CPAchecker 1.4-svn (OpenJDK 64-Bit Server VM 1.7.0_65) started (CPAchecker.run, INFO) Using predicate analysis with SMTInterpol 2.1-174-ga199d47-comp and JFactory 1.21. (PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (PredicateCPA:PredicateCPARefiner., INFO) Starting analysis ... (CPAchecker.runAlgorithm, INFO) Shutdown requested (The CPU-time limit of 900s has elapsed.), waiting for termination. (ForceTerminationOnShutdown$1.shutdownRequested, WARNING) Warning: Analysis stopped (The CPU-time limit of 900s has elapsed.) (ShutdownNotifier.shutdownIfNecessary, WARNING) PredicateCPA statistics ----------------------- Number of abstractions: 36 (0% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 36 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 1 (3%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 35 (97%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 35 Times result was 'false': 31 (89%) Number of coverage checks: 6828 BDD entailment checks: 336 Number of SMT sat checks: 35 trivial: 0 cached: 0 Max ABE block size: 54 Number of predicates discovered: 627 Number of abstraction locations: 2 Max number of predicates per location: 626 Avg number of predicates per location: 314 Total predicates per abstraction: 2345 Max number of predicates per abstraction: 626 Avg number of predicates per abstraction: 67.00 Number of irrelevant predicates: 84 (4%) Number of preds handled by boolean abs: 2261 (96%) Total number of models for allsat: 4554 Max number of models for allsat: 308 Avg number of models for allsat: 130.11 Number of path formula cache hits: 3749 (26%) Time for post operator: 0.803s Time for path formula creation: 0.722s Actual computation: 0.671s Time for strengthen operator: 0.105s Time for satisfiability checks: 0.077s Time for prec operator: 800.494s Time for abstraction: 800.484s (Max: 795.713s, Count: 36) Boolean abstraction: 799.775s Solving time: 0.291s (Max: 0.061s) Model enumeration time: 26.801s Time for BDD construction: 772.545s (Max: 772.245s) Time for merge operator: 0.182s Time for coverage check: 0.019s Time for BDD entailment checks: 0.011s Total time for SMT solver (w/o itp): 27.169s Number of BDD nodes: 106737 Size of BDD node table: 130021 Size of BDD node cleanup queue: 6858 (count: 5255, min: 0, max: 4129, avg: 1,31) Time for BDD node cleanup: 0.004s Time for BDD garbage collection: 224.665s (in 268945 runs) PrecisionBootstrap statistics ----------------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.131s Automaton transfers with branching: 0 Automaton transfer successors: 20476 (count: 20476, min: 1, max: 1, avg: 1,00) [1 x 20476] CPA algorithm statistics ------------------------ Number of iterations: 10190 Max size of waitlist: 189 Average size of waitlist: 80 Number of computed successors: 13764 Max successors for one state: 2 Number of times merged: 3246 Number of times stopped: 3246 Number of times breaked: 4 Total time for CPA algorithm: 802.678s (Max: 795.837s) Time for choose from waitlist: 0.040s Time for precision adjustment: 800.595s Time for transfer relation: 1.371s Time for merge operator: 0.330s Time for stop operator: 0.083s Time for adding to reached set: 0.084s Predicate-Abstraction Refiner statistics ---------------------------------------- Avg. length of target path (in blocks): 38 (count: 4, min: 2, max: 27, avg: 9,50) Time for refinement: 66.482s Counterexample analysis: 66.300s (Max: 65.080s, Calls: 4) Refinement sat check: 2.460s Interpolant computation: 63.788s Error path post-processing: 0.000s Path-formulas extraction: 0.001s Building the counterexample trace: 66.300s Extracting precise counterexample: 0.000s Predicate creation: 0.074s Precision update: 0.015s ARG update: 0.073s Length of refined path (in blocks): 36 (count: 3, min: 3, max: 27, avg: 12,00) Number of affected states: 33 (count: 3, min: 2, max: 26, avg: 11,00) 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: 33 (count: 3, min: 2, max: 26, avg: 11,00) Length (states) of path with itp 'false': 0 (count: 3, min: 0, max: 0, avg: 0,00) Different non-trivial interpolants along paths: 30 (count: 3, min: 1, max: 25, avg: 10,00) Equal non-trivial interpolants along paths: 0 (count: 3, min: 0, max: 0, avg: 0,00) Different precisions along paths: 0 (count: 0, min: 0, max: 0, avg: 0,00) Equal precisions 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 refinements: 4 Number of successful refinements: 4 Number of failed refinements: 0 Max. size of reached set before ref.: 8133 Max. size of reached set after ref.: 70 Avg. size of reached set before ref.: 2585.50 Avg. size of reached set after ref.: 52.75 Total time for CEGAR algorithm: 869.176s Time for refinements: 66.498s Average time for refinement: 16.624s Max time for refinement: 65.221s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 394 Number of functions: 2 Number of loops: 1 Size of reached set: 387 Number of reached locations: 387 (98%) Avg states per location: 1 Max states per location: 1 (at node N1) Number of reached functions: 2 (100%) Number of partitions: 387 Avg size of partitions: 1 Max size of partitions: 1 Number of target states: 0 Size of final wait list 7 Time for analysis setup: 1.907s Time for loading CPAs: 0.680s Time for loading parser: 0.339s Time for CFA construction: 0.769s Time for parsing file(s): 0.237s Time for AST to CFA: 0.318s Time for CFA sanity check: 0.000s Time for post-processing: 0.154s Time for var class.: 0.000s Time for Analysis: 869.176s CPU time for analysis: 897.560s Total time for CPAchecker: 871.086s Total CPU time for CPAchecker: 900.170s Time for Garbage Collector: 1.279s (in 25 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 6784MB ( 6470 MiB) max; 2501MB ( 2385 MiB) avg; 7873MB ( 7508 MiB) peak Used non-heap memory: 26MB ( 25 MiB) max; 26MB ( 25 MiB) avg; 26MB ( 25 MiB) peak Used in PS Old Gen pool: 916MB ( 873 MiB) max; 450MB ( 429 MiB) avg; 916MB ( 873 MiB) peak Allocated heap memory: 8186MB ( 7807 MiB) max; 5438MB ( 5186 MiB) avg Allocated non-heap memory: 27MB ( 26 MiB) max; 27MB ( 26 MiB) avg Total process virtual memory: 57054MB ( 54411 MiB) max; 57054MB ( 54411 MiB) avg Verification result: UNKNOWN, incomplete analysis. More details about the verification run can be found in the directory "./output".