scripts/cpa.sh -svcomp23 -heap 10000M -benchmark -timelimit '900 s' -stats -spec /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/properties/unreach-call.prp -64 /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/bh-ex3.i


--------------------------------------------------------------------------------


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 2.2 / svcomp23 (OpenJDK 64-Bit Server VM 11.0.17) started (CPAchecker.run, INFO)

Parsing CFA from file(s) "/mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/bh-ex3.i" (CPAchecker.parse, INFO)

line 44: Dead code detected: return 0; (CFACreationUtils.addEdgeToCFA, 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.callstack.skipFunctionPointerRecursion
 cpa.composite.aggregateBasicBlocks
 counterexample.export.graphml
 counterexample.export.compressWitness
 cpa.arg.proofWitness 
 (CPAchecker.printConfigurationWarnings, WARNING)

Starting analysis ... (CPAchecker.runAlgorithm, INFO)

Performing heuristic ... (SelectionAlgorithm.chooseConfig, INFO)

Using the following resource limits: CPU-time limit of 900s (Analysis config/components/svcomp23--singleLoopConfig.properties:ResourceLimitChecker.fromConfiguration, INFO)

Using Restarting Algorithm (Analysis config/components/svcomp23--singleLoopConfig.properties:CoreComponentsFactory.createAlgorithm, INFO)

Loading analysis 1 from file config/components/svcomp23--singleLoop-symbolicExecution.properties ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-symbolicExecution.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-symbolicExecution.properties': 'limits.time.cpu' has two values '900 s' and '140s'. Using '140s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-symbolicExecution.properties': 'limits.time.cpu::required' has two values '900' and '140s'. Using '140s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Using the following resource limits: CPU-time limit of 140s (Analysis config/components/svcomp23--singleLoopConfig.properties:Analysis config/components/svcomp23--singleLoop-symbolicExecution.properties:ResourceLimitChecker.fromConfiguration, INFO)

Starting analysis 1 ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Warning: Analysis 1 stopped. (The CPU-time limit of 140s has elapsed.) (Analysis config/components/svcomp23--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING)

Statistics for algorithm 1 of 7
===============================
Total time for algorithm 1:   140.522s

ValueAnalysisCPA statistics
---------------------------
Number of variables per state:                     6.98 (sum: 756602, count: 108425, min: 0, max: 8)
Number of global variables per state:              0.00 (sum: 0, count: 108425, min: 0, max: 0)
Number of assumptions:                                71904
Number of deterministic assumptions:                      0
Level of Determinism:                              0%

ValueAnalysisPrecisionAdjustment statistics
-------------------------------------------
Number of abstraction computations:                  108426
Total time for liveness abstraction:                   0.000s
Total time for abstraction computation:                0.191s
Total time for path thresholds:                        0.000s

SymbolicValueAnalysisPrecisionAdjustment statistics
---------------------------------------------------
Symbolic values before refinement:                   321928 (count: 108426, min: 0, max: 3, avg: 2.97)
Symbolic values after refinement:                    321928 (count: 108426, min: 0, max: 3, avg: 2.97)

ConstraintsStrengthenOperator statistics
----------------------------------------
Total time for strengthening by ConstraintsCPA:     0.054s
Replaced symbolic expressions: 0

ConstraintsCPA statistics
-------------------------

Time for solving constraints:                         24.579s
  Time for independent computation:                    0.284s
  Time for SMT check:                                  3.997s
  Time for resolving definites:                        4.369s

Cache lookups:                                        44034
Direct cache hits:                                    27865
Direct cache lookup time:                              0.030s
Subset cache hits:                                        0
Subset cache lookup time:                              0.066s
Superset cache hits:                                      0
Superset cache lookup time:                            0.020s

Number of removed outdated constraints:              297445 (count: 30102, min: 0, max: 12, avg: 9.88)
Time for outdated constraint removal:                  1.097s

Constraints after refinement in state:              1381322 (count: 108426, min: 0, max: 14, avg: 12.74)
Constraints before refinement in state:             1381322 (count: 108426, min: 0, max: 14, avg: 12.74)
Time for constraints adjustment:                       0.273s

AutomatonAnalysis (SVCOMP) statistics
-------------------------------------
Number of states:                                  1
Total time for successor computation:                  0.236s
Automaton transfers with branching:                0
Automaton transfer successors:                     1.00 (sum: 126654, count: 126654, min: 1, max: 1) [1 x 126654]
Number of states with assumption transitions:      0

CPA algorithm statistics
------------------------
Number of iterations:            100342
Max size of waitlist:            8083
Average size of waitlist:        4385
Number of computed successors:   108426
Max successors for one state:    2
Number of times merged:          0
Number of times stopped:         2
Number of times breaked:         0

Total time for CPA algorithm:       140.144s (Max:   140.144s)
  Time for choose from waitlist:      0.103s
  Time for precision adjustment:      1.025s
  Time for transfer relation:        28.689s
  Time for stop operator:           109.686s
  Time for adding to reached set:     0.263s

Counterexample-Check Algorithm statistics
-----------------------------------------
Number of counterexample checks:    0

CPA algorithm statistics
------------------------
Number of iterations:            100342
Max size of waitlist:            8083
Average size of waitlist:        4385
Number of computed successors:   108426
Max successors for one state:    2
Number of times merged:          0
Number of times stopped:         2
Number of times breaked:         0

Total time for CPA algorithm:       140.144s (Max:   140.144s)
  Time for choose from waitlist:      0.103s
  Time for precision adjustment:      1.025s
  Time for transfer relation:        28.689s
  Time for stop operator:           109.686s
  Time for adding to reached set:     0.263s

Counterexample-Check Algorithm statistics
-----------------------------------------
Number of counterexample checks:    0

RestartAlgorithm switches to the next configuration... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Loading analysis 2 from file config/components/svcomp23--singleLoop-valueAnalysis-Cegar.properties ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900 s' and '60s'. Using '60s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Using the following resource limits: CPU-time limit of 60s (Analysis config/components/svcomp23--singleLoopConfig.properties:Analysis config/components/svcomp23--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO)

Starting analysis 2 ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Warning: Analysis 2 stopped. (The CPU-time limit of 60s has elapsed.) (Analysis config/components/svcomp23--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING)

Statistics for algorithm 2 of 7
===============================
Total time for algorithm 2:    60.521s

ValueAnalysisCPA statistics
---------------------------
Number of variables per state:                     2.23 (sum: 184117, count: 82501, min: 0, max: 3)
Number of global variables per state:              0.00 (sum: 0, count: 82501, min: 0, max: 0)
Number of assumptions:                                69714
Number of deterministic assumptions:                      0
Level of Determinism:                              0%

ValueAnalysisPrecisionAdjustment statistics
-------------------------------------------
Number of abstraction computations:                   91969
Total time for liveness abstraction:                   0.000s
Total time for abstraction computation:                0.147s
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:                  0.130s
Automaton transfers with branching:                0
Automaton transfer successors:                     1.00 (sum: 113997, count: 113997, min: 1, max: 1) [1 x 113997]
Number of states with assumption transitions:      0

CPA algorithm statistics
------------------------
Number of iterations:            82493
Max size of waitlist:            64
Average size of waitlist:        44
Number of computed successors:   91970
Max successors for one state:    2
Number of times merged:          0
Number of times stopped:         9441
Number of times breaked:         2

Total time for CPA algorithm:        60.327s (Max:    60.319s)
  Time for choose from waitlist:      0.259s
  Time for precision adjustment:      0.336s
  Time for transfer relation:         1.198s
  Time for stop operator:            58.012s
  Time for adding to reached set:     0.319s

ValueAnalysisRefiner statistics
-------------------------------
Number of refinements:                                    2
Number of targets found:                                  2 (count: 2, min: 1, max: 1, avg: 1.00)
Time for completing refinement:                        0.044s
Number of root relocations:                               0
Number of similar, repeated refinements:                  0
Number of unique precision increments:             2

PathExtractor statistics
------------------------
Total number of targets found:            0

ValueAnalysisPathInterpolator statistics
----------------------------------------
  Time for interpolation:                              0.008s
  Number of interpolations:                               2
  Number of interpolation queries:                       19 (count: 19, min: 0, max: 2, avg: 1.00)
  Size of interpolant:                             0.79 (sum: 15, count: 19, min: 0, max: 1)
  Number of sliced prefixes:                              2 (count: 2, min: 1, max: 1, avg: 1.00)
  Extracting infeasible sliced prefixes:               0.007s
  Selecting infeasible sliced prefixes:                0.001s

CEGAR algorithm statistics
--------------------------
Number of CEGAR refinements:          2
Number of successful refinements:     2
Number of failed refinements:         0
Max. size of reached set before ref.: 18
Max. size of reached set after ref.:  1
Avg. size of reached set before ref.: 15.00
Avg. size of reached set after ref.:  1.00

Total time for CEGAR algorithm:      60.413s
Time for refinements:                 0.086s
Average time for refinement:          0.043s
Max time for refinement:              0.059s

Counterexample-Check Algorithm statistics
-----------------------------------------
Number of counterexample checks:    0

CPA algorithm statistics
------------------------
Number of iterations:            82493
Max size of waitlist:            64
Average size of waitlist:        44
Number of computed successors:   91970
Max successors for one state:    2
Number of times merged:          0
Number of times stopped:         9441
Number of times breaked:         2

Total time for CPA algorithm:        60.327s (Max:    60.319s)
  Time for choose from waitlist:      0.259s
  Time for precision adjustment:      0.336s
  Time for transfer relation:         1.198s
  Time for stop operator:            58.012s
  Time for adding to reached set:     0.319s

ValueAnalysisRefiner statistics
-------------------------------
Number of refinements:                                    2
Number of targets found:                                  2 (count: 2, min: 1, max: 1, avg: 1.00)
Time for completing refinement:                        0.044s
Number of root relocations:                               0
Number of similar, repeated refinements:                  0
Number of unique precision increments:             2

PathExtractor statistics
------------------------
Total number of targets found:            0

ValueAnalysisPathInterpolator statistics
----------------------------------------
  Time for interpolation:                              0.008s
  Number of interpolations:                               2
  Number of interpolation queries:                       19 (count: 19, min: 0, max: 2, avg: 1.00)
  Size of interpolant:                             0.79 (sum: 15, count: 19, min: 0, max: 1)
  Number of sliced prefixes:                              2 (count: 2, min: 1, max: 1, avg: 1.00)
  Extracting infeasible sliced prefixes:               0.007s
  Selecting infeasible sliced prefixes:                0.001s

CEGAR algorithm statistics
--------------------------
Number of CEGAR refinements:          2
Number of successful refinements:     2
Number of failed refinements:         0
Max. size of reached set before ref.: 18
Max. size of reached set after ref.:  1
Avg. size of reached set before ref.: 15.00
Avg. size of reached set after ref.:  1.00

Total time for CEGAR algorithm:      60.413s
Time for refinements:                 0.086s
Average time for refinement:          0.043s
Max time for refinement:              0.059s

Counterexample-Check Algorithm statistics
-----------------------------------------
Number of counterexample checks:    0

RestartAlgorithm switches to the next configuration... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Loading analysis 3 from file config/components/svcomp23--singleLoop-predicateAnalysis.properties ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900 s' and '200s'. Using '200s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Mismatch of configuration options when loading from 'config/components/svcomp23--singleLoop-predicateAnalysis.properties': 'specification' has two values '/mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/properties/unreach-call.prp' and 'specification/default.spc'. Using 'specification/default.spc'. (Analysis config/components/svcomp23--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO)

Using the following resource limits: CPU-time limit of 200s (Analysis config/components/svcomp23--singleLoopConfig.properties:Analysis config/components/svcomp23--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO)

Using predicate analysis with MathSAT5 version 5.6.8 (27814677e16f) (Jun 28 2022 17:03:19, gmp 6.1.2, gcc 6.3.0, 64-bit, reentrant) and JFactory 1.21. (Analysis config/components/svcomp23--singleLoopConfig.properties:Analysis config/components/svcomp23--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA.<init>, INFO)

Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis config/components/svcomp23--singleLoopConfig.properties:Analysis config/components/svcomp23--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner.<init>, INFO)

Starting analysis 3 ... (Analysis config/components/svcomp23--singleLoopConfig.properties:RestartAlgorithm.run, INFO)

Stopping analysis ... (CPAchecker.runAlgorithm, INFO)


Selection Algorithm statistics
------------------------------
Size of preliminary analysis reached set:      0
Used algorithm property:                       config/components/svcomp23--singleLoopConfig.properties
Program containing only relevant bools:        0
Relevant boolean vars / relevant vars ratio:   0.3750
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:        5


Restart Algorithm statistics
----------------------------
Number of algorithms provided:    7
Number of algorithms used:        3
Total time for algorithm 3:     0.730s

PredicateCPA statistics
-----------------------
Number of abstractions:            53 (10% of all post computations)
  Times abstraction was reused:    0
  Because of function entry/exit:  0 (0%)
  Because of loop head:            15 (28%)
  Because of join nodes:           0 (0%)
  Because of threshold:            0 (0%)
  Because of target state:         38 (72%)
  Times precision was empty:       4 (8%)
  Times precision was {false}:     36 (68%)
  Times result was cached:         0 (0%)
  Times cartesian abs was used:    0 (0%)
  Times boolean abs was used:      13 (25%)
  Times result was 'false':        31 (58%)
Number of strengthen sat checks:   0
Number of coverage checks:         112
  BDD entailment checks:           42
Number of SMT sat checks:          0
  trivial:                         0
  cached:                          0

Max ABE block size:                       14
Avg ABE block size:                                7.32 (sum: 388, count: 53, min: 2, max: 14)
Number of predicates discovered:          8
Number of abstraction locations:          2
Max number of predicates per location:    6
Avg number of predicates per location:    3
Total predicates per abstraction:         88
Max number of predicates per abstraction: 6
Avg number of predicates per abstraction: 1.80
Number of irrelevant predicates:          36 (41%)
Number of preds handled by boolean abs:   52 (59%)
  Total number of models for allsat:      57
  Max number of models for allsat:        9
  Avg number of models for allsat:        4.38

Time for post operator:                                0.048s
  Time for path formula creation:                      0.035s
Time for strengthen operator:                          0.004s
Time for prec operator:                                0.242s
  Time for abstraction:                  0.241s (Max:     0.042s, Count: 53)
    Boolean abstraction:                 0.098s
    Solving time:                        0.039s (Max:     0.004s)
    Model enumeration time:              0.051s
    Time for BDD construction:           0.033s (Max:     0.015s)
Time for merge operator:                               0.020s
Time for coverage checks:                              0.000s
  Time for BDD entailment checks:                      0.000s
Total time for SMT solver (w/o itp):     0.090s

Number of path formula cache hits:   240 (42%)

Inside post operator:                  
  Inside path formula creation:        
    Time for path formula computation:     0.032s

Total number of created targets for pointer analysis: 0


Number of BDD nodes:                               429
Size of BDD node table:                            506837
Size of BDD cache:                                 50683
Size of BDD node cleanup queue:                    0.00 (sum: 0, count: 420, 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:                  0.015s
Automaton transfers with branching:                0
Automaton transfer successors:                     1.00 (sum: 553, count: 553, min: 1, max: 1) [1 x 553]
Number of states with assumption transitions:      0

CPA algorithm statistics
------------------------
Number of iterations:            411
Max size of waitlist:            5
Average size of waitlist:        2
ReversePostorderSortedWaitlist:                    0.00 (sum: 0, count: 209, min: 0, max: 0)
CallstackSortedWaitlist:                           70.25 (sum: 562, count: 8, min: 2, max: 202)
Number of computed successors:   484
Max successors for one state:    2
Number of times merged:          35
Number of times stopped:         36
Number of times breaked:         7

Total time for CPA algorithm:         0.419s (Max:     0.169s)
  Time for choose from waitlist:      0.006s
  Time for precision adjustment:      0.249s
  Time for transfer relation:         0.095s
  Time for merge operator:            0.030s
  Time for stop operator:             0.019s
  Time for adding to reached set:     0.007s

Static Predicate Refiner statistics
-----------------------------------
Number of predicates found statically:                    1 (count: 1, min: 1, max: 1, avg: 1.00)

Total time for static refinement:                      0.025s
  Time for path feasibility check:                     0.001s
  Time for predicate extraction from CFA:              0.021s
  Time for ARG update:                                 0.001s

PredicateCPARefiner statistics
------------------------------
Number of predicate refinements:                   6
Avg. length of target path (in blocks):            3.00 (sum: 18, count: 6, min: 2, max: 4)
Number of infeasible sliced prefixes:                     0 (count: 0, min: 0, max: 0, avg: 0.00)

Time for refinement:                                   0.080s
  Path-formulas extraction:                            0.001s
  Counterexample analysis:                             0.037s (Max:     0.012s, Calls: 7)
    Refinement sat check:                              0.019s
    Interpolant computation:                           0.013s

Predicate-Abstraction Refiner statistics
----------------------------------------
  Predicate creation:                                  0.017s
  Precision update:                                    0.006s
  ARG update:                                          0.015s

Length of refined path (in blocks):                3.00 (sum: 18, count: 6, min: 2, max: 4)
Number of affected states:                                8 (count: 6, min: 1, max: 2, avg: 1.33)
Length (states) of path with itp 'true':                  4 (count: 6, min: 0, max: 2, avg: 0.67)
Length (states) of path with itp non-trivial itp:         8 (count: 6, min: 1, max: 2, avg: 1.33)
Length (states) of path with itp 'false':                 0 (count: 6, min: 0, max: 0, avg: 0.00)
Different non-trivial interpolants along paths:           2 (count: 6, min: 0, max: 1, avg: 0.33)
Equal non-trivial interpolants along paths:               0 (count: 6, min: 0, max: 0, avg: 0.00)
Number of refs with location-based cutoff:                0

CEGAR algorithm statistics
--------------------------
Number of CEGAR refinements:          7
Number of successful refinements:     7
Number of failed refinements:         0
Max. size of reached set before ref.: 114
Max. size of reached set after ref.:  99
Avg. size of reached set before ref.: 55.14
Avg. size of reached set after ref.:  30.14

Total time for CEGAR algorithm:       0.528s
Time for refinements:                 0.107s
Average time for refinement:          0.015s
Max time for refinement:              0.025s

CPA algorithm statistics
------------------------
Number of iterations:            411
Max size of waitlist:            5
Average size of waitlist:        2
ReversePostorderSortedWaitlist:                    0.00 (sum: 0, count: 209, min: 0, max: 0)
CallstackSortedWaitlist:                           70.25 (sum: 562, count: 8, min: 2, max: 202)
Number of computed successors:   484
Max successors for one state:    2
Number of times merged:          35
Number of times stopped:         36
Number of times breaked:         7

Total time for CPA algorithm:         0.419s (Max:     0.169s)
  Time for choose from waitlist:      0.006s
  Time for precision adjustment:      0.249s
  Time for transfer relation:         0.095s
  Time for merge operator:            0.030s
  Time for stop operator:             0.019s
  Time for adding to reached set:     0.007s

Static Predicate Refiner statistics
-----------------------------------
Number of predicates found statically:                    1 (count: 1, min: 1, max: 1, avg: 1.00)

Total time for static refinement:                      0.025s
  Time for path feasibility check:                     0.001s
  Time for predicate extraction from CFA:              0.021s
  Time for ARG update:                                 0.001s

PredicateCPARefiner statistics
------------------------------
Number of predicate refinements:                   6
Avg. length of target path (in blocks):            3.00 (sum: 18, count: 6, min: 2, max: 4)
Number of infeasible sliced prefixes:                     0 (count: 0, min: 0, max: 0, avg: 0.00)

Time for refinement:                                   0.080s
  Path-formulas extraction:                            0.001s
  Counterexample analysis:                             0.037s (Max:     0.012s, Calls: 7)
    Refinement sat check:                              0.019s
    Interpolant computation:                           0.013s

Predicate-Abstraction Refiner statistics
----------------------------------------
  Predicate creation:                                  0.017s
  Precision update:                                    0.006s
  ARG update:                                          0.015s

Length of refined path (in blocks):                3.00 (sum: 18, count: 6, min: 2, max: 4)
Number of affected states:                                8 (count: 6, min: 1, max: 2, avg: 1.33)
Length (states) of path with itp 'true':                  4 (count: 6, min: 0, max: 2, avg: 0.67)
Length (states) of path with itp non-trivial itp:         8 (count: 6, min: 1, max: 2, avg: 1.33)
Length (states) of path with itp 'false':                 0 (count: 6, min: 0, max: 0, avg: 0.00)
Different non-trivial interpolants along paths:           2 (count: 6, min: 0, max: 1, avg: 0.33)
Equal non-trivial interpolants along paths:               0 (count: 6, min: 0, max: 0, avg: 0.00)
Number of refs with location-based cutoff:                0

CEGAR algorithm statistics
--------------------------
Number of CEGAR refinements:          7
Number of successful refinements:     7
Number of failed refinements:         0
Max. size of reached set before ref.: 114
Max. size of reached set after ref.:  99
Avg. size of reached set before ref.: 55.14
Avg. size of reached set after ref.:  30.14

Total time for CEGAR algorithm:       0.528s
Time for refinements:                 0.107s
Average time for refinement:          0.015s
Max time for refinement:              0.025s

CPAchecker general statistics
-----------------------------
Number of program locations:                       61
Number of CFA edges (per node):                          69 (count: 61, min: 0, max: 4, avg: 1.13)
Number of relevant variables:                      8
Number of functions:                               3
Number of loops (and loop nodes):                         1 (sum: 31, min: 31, max: 31, avg: 31.00)
Size of reached set:             243
  Number of reached locations:   33 (54%)
    Avg states per location:     7
    Max states per location:     20 (at node N8)
  Number of reached functions:   2 (67%)
  Number of target states:       0

Time for analysis setup:          1.301s
  Time for loading CPAs:          0.190s
  Time for loading parser:        0.309s
  Time for CFA construction:      0.740s
    Time for parsing file(s):     0.415s
    Time for AST to CFA:          0.168s
    Time for CFA sanity check:    0.000s
    Time for post-processing:     0.129s
      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:                  0.055s
        Time for collecting variables:                 0.029s
        Time for solving dependencies:                 0.001s
        Time for building hierarchy:                   0.000s
        Time for building classification:              0.025s
        Time for exporting data:                       0.000s
Time for Analysis:              202.165s
CPU time for analysis:          202.140s
Time for analyzing result:        0.000s
Total time for CPAchecker:      203.467s
Total CPU time for CPAchecker:  203.430s
Time for statistics:              0.088s

Time for Garbage Collector:       5.069s (in 1017 runs)
Garbage Collector(s) used:    Copy, MarkSweepCompact

Verification result: TRUE. No property violation found by chosen configuration.
More details about the verification run can be found in the directory "./output".
