java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test01.c


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


This is Ultimate 0.1.24-a2187f8
[2019-09-02 14:16:44,719 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-02 14:16:44,721 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-09-02 14:16:44,734 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-09-02 14:16:44,770 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-02 14:16:44,785 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-02 14:16:44,786 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-02 14:16:44,787 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-02 14:16:44,787 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-02 14:16:44,787 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-02 14:16:44,788 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-02 14:16:44,788 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-02 14:16:44,788 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-02 14:16:44,788 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-02 14:16:44,788 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-02 14:16:44,789 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-02 14:16:44,789 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-02 14:16:44,789 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-02 14:16:44,789 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-02 14:16:44,789 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-02 14:16:44,790 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-02 14:16:44,790 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-02 14:16:44,790 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-02 14:16:44,790 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-02 14:16:44,790 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-02 14:16:44,791 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-02 14:16:44,791 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-02 14:16:44,791 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-02 14:16:44,791 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-02 14:16:44,792 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-02 14:16:44,792 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-02 14:16:44,792 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-02 14:16:44,792 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-02 14:16:44,792 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-02 14:16:44,821 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-02 14:16:44,835 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-02 14:16:44,838 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-02 14:16:44,840 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-02 14:16:44,840 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-02 14:16:44,841 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c
[2019-09-02 14:16:44,928 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291460382/8ad43f25404d40a7a053c17cee282caa/FLAGb62e139e0
[2019-09-02 14:16:45,403 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-02 14:16:45,405 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test01.c
[2019-09-02 14:16:45,411 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291460382/8ad43f25404d40a7a053c17cee282caa/FLAGb62e139e0
[2019-09-02 14:16:45,805 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291460382/8ad43f25404d40a7a053c17cee282caa
[2019-09-02 14:16:45,815 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-02 14:16:45,817 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-02 14:16:45,818 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-02 14:16:45,818 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-02 14:16:45,822 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-02 14:16:45,823 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.09 02:16:45" (1/1) ...
[2019-09-02 14:16:45,826 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2cc761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:45, skipping insertion in model container
[2019-09-02 14:16:45,826 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.09 02:16:45" (1/1) ...
[2019-09-02 14:16:45,834 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-02 14:16:45,851 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-02 14:16:46,014 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-02 14:16:46,026 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-02 14:16:46,045 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-02 14:16:46,070 INFO  L192         MainTranslator]: Completed translation
[2019-09-02 14:16:46,070 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46 WrapperNode
[2019-09-02 14:16:46,071 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-02 14:16:46,072 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-02 14:16:46,072 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-02 14:16:46,072 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-02 14:16:46,224 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,224 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,233 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,233 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,238 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,240 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,241 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,243 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-02 14:16:46,243 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-02 14:16:46,244 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-02 14:16:46,244 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-02 14:16:46,245 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.09 02:16:46" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-02 14:16:46,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-02 14:16:46,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-02 14:16:46,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-02 14:16:46,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-02 14:16:46,299 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-02 14:16:46,300 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-09-02 14:16:46,300 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-09-02 14:16:46,300 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-02 14:16:46,300 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-02 14:16:46,471 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-02 14:16:46,472 INFO  L283             CfgBuilder]: Removed 0 assume(true) statements.
[2019-09-02 14:16:46,473 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.09 02:16:46 BoogieIcfgContainer
[2019-09-02 14:16:46,473 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-02 14:16:46,473 INFO  L113        PluginConnector]: ------------------------Sifa----------------------------
[2019-09-02 14:16:46,474 INFO  L271        PluginConnector]: Initializing Sifa...
[2019-09-02 14:16:46,474 INFO  L275        PluginConnector]: Sifa initialized
[2019-09-02 14:16:46,475 INFO  L185        PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.09 02:16:46" (1/1) ...
[2019-09-02 14:16:46,476 INFO  L79            SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ Abstract when formula's dag size exceeds
(negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than
(negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid
[2019-09-02 14:16:46,511 INFO  L162        IcfgInterpreter]: Started Sifa with 1 locations of interest
[2019-09-02 14:16:46,511 INFO  L169        IcfgInterpreter]: Building call graph
[2019-09-02 14:16:46,518 INFO  L174        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-09-02 14:16:46,527 INFO  L179        IcfgInterpreter]: Starting interpretation
[2019-09-02 14:16:46,529 INFO  L199        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-09-02 14:16:46,661 INFO  L199        IcfgInterpreter]: Interpreting procedure main with input of size 18 for LOIs
[2019-09-02 14:16:46,674 INFO  L183        IcfgInterpreter]: Interpretation finished
[2019-09-02 14:16:46,674 INFO  L191        IcfgInterpreter]: Final predicates for locations of interest are:
[2019-09-02 14:16:46,676 INFO  L193        IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 18#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |#NULL.base|) (<= |main_~#b~0.offset| 0) (= |#valid| (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1)) (= (store (store |old(#length)| |main_~#a~0.base| 4) |main_~#b~0.base| 4) |#length|) (not (= |main_~#b~0.base| 0)) (<= 0 |#NULL.base|) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (not (= 0 |main_~#a~0.base|)) (<= 0 |#NULL.offset|) (= main_~p2~0.offset |main_~#b~0.offset|) (= |main_~#b~0.offset| 0) (= |main_~#a~0.offset| 0) (< |main_~#b~0.base| |#StackHeapBarrier|) (<= main_~p1~0.offset 0) (<= |#NULL.base| 0) (<= 0 main_~p1~0.offset) (= main_~p1~0.base |main_~#a~0.base|) (= |main_~#b~0.base| main_~p2~0.base) (<= 0 |main_~#a~0.offset|) (<= |main_~#a~0.offset| 0) (= main_~p1~0.base main_~p2~0.base) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (<= main_~p2~0.offset 0) (<= 0 |main_~#b~0.offset|) (= main_~p1~0.offset |main_~#a~0.offset|) (= main_~p2~0.offset main_~p1~0.offset) (= |#NULL.offset| 0) (<= 0 main_~p2~0.offset))
[2019-09-02 14:16:46,688 INFO  L100           SifaObserver]: ✔ All error locations are guaranteed to be unreachable.
[2019-09-02 14:16:46,688 INFO  L132        PluginConnector]: ------------------------ END Sifa----------------------------
[2019-09-02 14:16:46,690 INFO  L168              Benchmark]: Toolchain (without parser) took 873.20 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 86.5 MB in the beginning and 157.6 MB in the end (delta: -71.2 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,691 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,692 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 252.90 ms. Allocated memory is still 138.9 MB. Free memory was 86.3 MB in the beginning and 77.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,693 INFO  L168              Benchmark]: Boogie Preprocessor took 171.48 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 77.1 MB in the beginning and 178.9 MB in the end (delta: -101.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,693 INFO  L168              Benchmark]: RCFGBuilder took 229.72 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 167.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,694 INFO  L168              Benchmark]: Sifa took 214.86 ms. Allocated memory is still 201.3 MB. Free memory was 167.2 MB in the beginning and 157.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2019-09-02 14:16:46,698 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 252.90 ms. Allocated memory is still 138.9 MB. Free memory was 86.3 MB in the beginning and 77.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 171.48 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 77.1 MB in the beginning and 178.9 MB in the end (delta: -101.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 229.72 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 167.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
 * Sifa took 214.86 ms. Allocated memory is still 201.3 MB. Free memory was 167.2 MB in the beginning and 157.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa:
  - StatisticsResult: Symbolic Interpretation with Fluid Abstractions
    0.2s OVERALL_TIME, 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 7 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 5 TOOLS_POST_APPLICATIONS, 0.0s TOOLS_POST_TIME, 2 TOOLS_POST_CALL_APPLICATIONS, 0.0s TOOLS_POST_CALL_TIME, 1 TOOLS_POST_RETURN_APPLICATIONS, 0.1s TOOLS_POST_RETURN_TIME, 0.1s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 7 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 2 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 0 DOMAIN_ALPHA_APPLICATIONS, 0.0s DOMAIN_ALPHA_TIME, 0 DOMAIN_WIDEN_APPLICATIONS, 0.0s DOMAIN_WIDEN_TIME, 0 DOMAIN_ISSUBSETEQ_APPLICATIONS, 0.0s DOMAIN_ISSUBSETEQ_TIME, 0 DOMAIN_ISBOTTOM_APPLICATIONS, 0.0s DOMAIN_ISBOTTOM_TIME, 0 LOOP_SUMMARIZER_APPLICATIONS, 0 LOOP_SUMMARIZER_CACHE_MISSES, 0.0s LOOP_SUMMARIZER_OVERALL_TIME, 0.0s LOOP_SUMMARIZER_NEW_COMPUTATION_TIME, 0 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 1 CALL_SUMMARIZER_APPLICATIONS, 0 CALL_SUMMARIZER_CACHE_MISSES, 0.0s CALL_SUMMARIZER_OVERALL_TIME, 0.0s CALL_SUMMARIZER_NEW_COMPUTATION_TIME, 0.0s PROCEDURE_GRAPH_BUILDER_TIME, 0.0s PATH_EXPR_TIME, 0.0s REGEX_TO_DAG_TIME, 0.0s DAG_COMPRESSION_TIME, 28 DAG_COMPRESSION_PROCESSED_NODES, 19 DAG_COMPRESSION_RETAINED_NODES
  - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    
RESULT: Ultimate proved your program to be correct!
Received shutdown request...