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_4_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) Stopping analysis ... (CPAchecker.runAlgorithm, INFO) PredicateCPA statistics ----------------------- Number of abstractions: 71 (0% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 71 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 1 (1%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 70 (99%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 70 Times result was 'false': 65 (93%) Number of coverage checks: 12978 BDD entailment checks: 1272 Number of SMT sat checks: 70 trivial: 0 cached: 0 Max ABE block size: 50 Number of predicates discovered: 117 Number of abstraction locations: 2 Max number of predicates per location: 116 Avg number of predicates per location: 59 Total predicates per abstraction: 6560 Max number of predicates per abstraction: 116 Avg number of predicates per abstraction: 93.71 Number of irrelevant predicates: 21 (0%) Number of preds handled by boolean abs: 6539 (100%) Total number of models for allsat: 640 Max number of models for allsat: 24 Avg number of models for allsat: 9.14 Number of path formula cache hits: 7871 (30%) Time for post operator: 1.030s Time for path formula creation: 0.935s Actual computation: 0.856s Time for strengthen operator: 0.146s Time for satisfiability checks: 0.095s Time for prec operator: 3.886s Time for abstraction: 3.869s (Max: 0.214s, Count: 71) Boolean abstraction: 2.794s Solving time: 0.441s (Max: 0.086s) Model enumeration time: 1.669s Time for BDD construction: 0.420s (Max: 0.027s) Time for merge operator: 0.250s Time for coverage check: 0.031s Time for BDD entailment checks: 0.015s Total time for SMT solver (w/o itp): 2.203s Number of BDD nodes: 8810 Size of BDD node table: 10007 Size of BDD node cleanup queue: 20290 (count: 11029, min: 0, max: 7663, avg: 1,84) Time for BDD node cleanup: 0.016s Time for BDD garbage collection: 0.078s (in 596 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: 0.215s Automaton transfers with branching: 0 Automaton transfer successors: 37002 (count: 37002, min: 1, max: 1, avg: 1,00) [1 x 37002] CPA algorithm statistics ------------------------ Number of iterations: 18919 Max size of waitlist: 327 Average size of waitlist: 129 Number of computed successors: 25039 Max successors for one state: 2 Number of times merged: 5853 Number of times stopped: 5854 Number of times breaked: 5 Total time for CPA algorithm: 6.764s (Max: 3.981s) Time for choose from waitlist: 0.055s Time for precision adjustment: 4.006s Time for transfer relation: 1.802s Time for merge operator: 0.438s Time for stop operator: 0.112s Time for adding to reached set: 0.111s Predicate-Abstraction Refiner statistics ---------------------------------------- Avg. length of target path (in blocks): 26 (count: 5, min: 2, max: 8, avg: 5,20) Time for refinement: 2.141s Counterexample analysis: 2.051s (Max: 0.701s, Calls: 5) Refinement sat check: 0.514s Interpolant computation: 1.506s Error path post-processing: 0.000s Path-formulas extraction: 0.001s Building the counterexample trace: 2.051s Extracting precise counterexample: 0.000s Predicate creation: 0.012s Precision update: 0.006s ARG update: 0.050s Length of refined path (in blocks): 24 (count: 4, min: 3, max: 8, avg: 6,00) Number of affected states: 20 (count: 4, min: 2, max: 7, avg: 5,00) Length (states) of path with itp 'true': 0 (count: 4, min: 0, max: 0, avg: 0,00) Length (states) of path with itp non-trivial itp: 20 (count: 4, min: 2, max: 7, avg: 5,00) Length (states) of path with itp 'false': 0 (count: 4, min: 0, max: 0, avg: 0,00) Different non-trivial interpolants along paths: 16 (count: 4, min: 1, max: 6, avg: 4,00) Equal non-trivial interpolants along paths: 0 (count: 4, 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: 5 Number of successful refinements: 5 Number of failed refinements: 0 Max. size of reached set before ref.: 1853 Max. size of reached set after ref.: 70 Avg. size of reached set before ref.: 1066.20 Avg. size of reached set after ref.: 56.20 Total time for CEGAR algorithm: 8.920s Time for refinements: 2.155s Average time for refinement: 0.431s Max time for refinement: 0.723s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 358 Number of functions: 2 Number of loops: 1 Size of reached set: 14136 Number of reached locations: 357 (100%) Avg states per location: 39 Max states per location: 50 (at node N0) Number of reached functions: 2 (100%) Number of partitions: 14088 Avg size of partitions: 1 Max size of partitions: 49 (with key [N114 (before lines 118-827), Function ssl3_accept called from node N642, stack depth 2 [3d989dea], stack [main, ssl3_accept], Init]) Number of target states: 0 Time for analysis setup: 1.689s Time for loading CPAs: 0.586s Time for loading parser: 0.335s Time for CFA construction: 0.675s Time for parsing file(s): 0.235s Time for AST to CFA: 0.253s Time for CFA sanity check: 0.000s Time for post-processing: 0.133s Time for var class.: 0.000s Time for Analysis: 8.935s CPU time for analysis: 19.920s Total time for CPAchecker: 10.626s Total CPU time for CPAchecker: 22.420s Time for Garbage Collector: 0.105s (in 4 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 664MB ( 634 MiB) max; 273MB ( 260 MiB) avg; 696MB ( 664 MiB) peak Used non-heap memory: 26MB ( 24 MiB) max; 22MB ( 21 MiB) avg; 26MB ( 25 MiB) peak Used in PS Old Gen pool: 0MB ( 0 MiB) max; 0MB ( 0 MiB) avg; 0MB ( 0 MiB) peak Allocated heap memory: 2553MB ( 2435 MiB) max; 2104MB ( 2006 MiB) avg Allocated non-heap memory: 27MB ( 26 MiB) max; 25MB ( 24 MiB) avg Total process virtual memory: 57056MB ( 54413 MiB) max; 57054MB ( 54411 MiB) avg Verification result: TRUE. No property violation found by chosen configuration. More details about the verification run can be found in the directory "./output".