./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/heap-manipulation/tree-1.i --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 20ed64ec
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/heap-manipulation/tree-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daa6bd618e8acf5db639c256f6cad62f101e97d0
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(valid-deref)
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-20ed64e
[2021-08-27 06:26:44,781 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-08-27 06:26:44,785 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-27 06:26:44,824 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-27 06:26:44,825 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-27 06:26:44,828 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-27 06:26:44,830 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-27 06:26:44,835 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-27 06:26:44,837 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-27 06:26:44,841 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-27 06:26:44,849 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-08-27 06:26:44,853 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-27 06:26:44,853 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-27 06:26:44,856 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-27 06:26:44,857 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-27 06:26:44,858 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-27 06:26:44,865 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-27 06:26:44,869 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-27 06:26:44,870 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-27 06:26:44,872 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-27 06:26:44,874 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-27 06:26:44,875 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-27 06:26:44,876 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-08-27 06:26:44,878 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-27 06:26:44,889 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-27 06:26:44,889 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-27 06:26:44,890 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-27 06:26:44,891 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-27 06:26:44,891 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-27 06:26:44,892 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-27 06:26:44,892 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-27 06:26:44,893 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-27 06:26:44,893 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-27 06:26:44,894 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-27 06:26:44,895 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-27 06:26:44,895 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-27 06:26:44,896 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-27 06:26:44,896 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-27 06:26:44,896 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-27 06:26:44,897 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-27 06:26:44,898 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-08-27 06:26:44,904 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-08-27 06:26:44,943 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-08-27 06:26:44,944 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-27 06:26:44,945 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-27 06:26:44,945 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-27 06:26:44,947 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-27 06:26:44,947 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-08-27 06:26:44,947 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-08-27 06:26:44,947 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-27 06:26:44,947 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-08-27 06:26:44,948 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-08-27 06:26:44,948 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * Bitprecise bitfields=true
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-27 06:26:44,949 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2021-08-27 06:26:44,950 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-08-27 06:26:44,950 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-08-27 06:26:44,950 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-27 06:26:44,950 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-08-27 06:26:44,950 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-08-27 06:26:44,950 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-27 06:26:44,951 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-27 06:26:44,951 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-08-27 06:26:44,951 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-08-27 06:26:44,951 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-27 06:26:44,951 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-08-27 06:26:44,951 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa6bd618e8acf5db639c256f6cad62f101e97d0
[2021-08-27 06:26:45,296 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-27 06:26:45,317 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-27 06:26:45,319 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-27 06:26:45,321 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-08-27 06:26:45,322 INFO  L275        PluginConnector]: CDTParser initialized
[2021-08-27 06:26:45,323 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/tree-1.i
[2021-08-27 06:26:45,383 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/012943b20/3bb2798b9ace4c7d8e85bb92e7e77b2a/FLAG3ba1f69db
[2021-08-27 06:26:45,950 INFO  L306              CDTParser]: Found 1 translation units.
[2021-08-27 06:26:45,950 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/tree-1.i
[2021-08-27 06:26:45,969 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/012943b20/3bb2798b9ace4c7d8e85bb92e7e77b2a/FLAG3ba1f69db
[2021-08-27 06:26:46,359 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/012943b20/3bb2798b9ace4c7d8e85bb92e7e77b2a
[2021-08-27 06:26:46,362 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-27 06:26:46,364 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-08-27 06:26:46,367 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-08-27 06:26:46,367 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-08-27 06:26:46,369 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-08-27 06:26:46,370 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,370 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527d2fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46, skipping insertion in model container
[2021-08-27 06:26:46,371 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,377 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-08-27 06:26:46,433 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-08-27 06:26:46,633 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/tree-1.i[22626,22639]
[2021-08-27 06:26:46,651 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-27 06:26:46,658 INFO  L203         MainTranslator]: Completed pre-run
[2021-08-27 06:26:46,686 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/tree-1.i[22626,22639]
[2021-08-27 06:26:46,695 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-27 06:26:46,719 INFO  L208         MainTranslator]: Completed translation
[2021-08-27 06:26:46,719 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46 WrapperNode
[2021-08-27 06:26:46,719 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-08-27 06:26:46,720 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-27 06:26:46,724 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-27 06:26:46,725 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-08-27 06:26:46,735 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,735 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,769 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,770 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,792 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,801 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,805 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,812 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-27 06:26:46,813 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-27 06:26:46,813 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-08-27 06:26:46,813 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-08-27 06:26:46,814 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (1/1) ...
[2021-08-27 06:26:46,830 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-27 06:26:46,836 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-27 06:26:46,849 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-08-27 06:26:46,866 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-08-27 06:26:46,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-08-27 06:26:46,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-27 06:26:46,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2021-08-27 06:26:46,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2021-08-27 06:26:46,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2021-08-27 06:26:46,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure fail
[2021-08-27 06:26:46,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure inspect
[2021-08-27 06:26:46,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure create_tree
[2021-08-27 06:26:46,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure free_tree
[2021-08-27 06:26:46,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2021-08-27 06:26:46,881 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2021-08-27 06:26:46,881 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2021-08-27 06:26:46,882 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2021-08-27 06:26:46,883 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2021-08-27 06:26:46,884 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2021-08-27 06:26:46,885 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2021-08-27 06:26:46,886 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2021-08-27 06:26:46,887 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2021-08-27 06:26:46,888 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2021-08-27 06:26:46,889 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2021-08-27 06:26:46,889 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2021-08-27 06:26:46,889 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2021-08-27 06:26:46,889 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2021-08-27 06:26:46,889 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2021-08-27 06:26:46,897 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2021-08-27 06:26:46,897 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2021-08-27 06:26:46,897 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2021-08-27 06:26:46,898 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2021-08-27 06:26:46,899 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2021-08-27 06:26:46,899 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2021-08-27 06:26:46,899 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2021-08-27 06:26:46,900 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2021-08-27 06:26:46,900 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2021-08-27 06:26:46,900 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2021-08-27 06:26:46,900 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2021-08-27 06:26:46,900 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2021-08-27 06:26:46,901 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2021-08-27 06:26:46,902 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2021-08-27 06:26:46,903 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2021-08-27 06:26:46,904 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2021-08-27 06:26:46,905 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2021-08-27 06:26:46,905 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2021-08-27 06:26:46,905 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2021-08-27 06:26:46,905 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2021-08-27 06:26:46,906 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2021-08-27 06:26:46,906 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2021-08-27 06:26:46,906 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2021-08-27 06:26:46,906 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2021-08-27 06:26:46,906 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2021-08-27 06:26:46,907 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2021-08-27 06:26:46,907 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2021-08-27 06:26:46,907 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2021-08-27 06:26:46,907 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-08-27 06:26:46,908 INFO  L130     BoogieDeclarations]: Found specification of procedure fail
[2021-08-27 06:26:46,909 INFO  L130     BoogieDeclarations]: Found specification of procedure inspect
[2021-08-27 06:26:46,909 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-08-27 06:26:46,909 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-08-27 06:26:46,909 INFO  L130     BoogieDeclarations]: Found specification of procedure create_tree
[2021-08-27 06:26:46,909 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-08-27 06:26:46,910 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-08-27 06:26:46,910 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-08-27 06:26:46,910 INFO  L130     BoogieDeclarations]: Found specification of procedure free_tree
[2021-08-27 06:26:46,911 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-08-27 06:26:46,913 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2021-08-27 06:26:46,913 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-08-27 06:26:46,913 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-08-27 06:26:46,914 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-27 06:26:47,643 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-27 06:26:47,644 INFO  L299             CfgBuilder]: Removed 11 assume(true) statements.
[2021-08-27 06:26:47,646 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:47 BoogieIcfgContainer
[2021-08-27 06:26:47,646 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-27 06:26:47,649 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-27 06:26:47,653 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-08-27 06:26:47,656 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-08-27 06:26:47,656 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:26:46" (1/3) ...
[2021-08-27 06:26:47,657 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073bbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:47, skipping insertion in model container
[2021-08-27 06:26:47,657 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:46" (2/3) ...
[2021-08-27 06:26:47,657 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073bbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:47, skipping insertion in model container
[2021-08-27 06:26:47,657 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:47" (3/3) ...
[2021-08-27 06:26:47,658 INFO  L111   eAbstractionObserver]: Analyzing ICFG tree-1.i
[2021-08-27 06:26:47,663 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-27 06:26:47,664 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations.
[2021-08-27 06:26:47,708 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-08-27 06:26:47,715 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-08-27 06:26:47,716 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 65 error locations.
[2021-08-27 06:26:47,745 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 164 states, 84 states have (on average 2.107142857142857) internal successors, (177), 152 states have internal predecessors, (177), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2021-08-27 06:26:47,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-08-27 06:26:47,753 INFO  L504         BasicCegarLoop]: Found error trace
[2021-08-27 06:26:47,753 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-27 06:26:47,754 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting create_treeErr8REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, create_treeErr0REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION (and 61 more)] ===
[2021-08-27 06:26:47,760 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-27 06:26:47,760 INFO  L82        PathProgramCache]: Analyzing trace with hash -1241671287, now seen corresponding path program 1 times
[2021-08-27 06:26:47,768 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-27 06:26:47,769 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144799469]
[2021-08-27 06:26:47,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-27 06:26:47,770 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-27 06:26:47,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-27 06:26:47,961 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-27 06:26:47,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-27 06:26:47,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-27 06:26:47,995 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-27 06:26:47,995 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144799469]
[2021-08-27 06:26:47,996 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144799469] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-27 06:26:47,996 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-27 06:26:47,997 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-27 06:26:48,005 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392064980]
[2021-08-27 06:26:48,015 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-08-27 06:26:48,016 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-27 06:26:48,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-08-27 06:26:48,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-27 06:26:48,028 INFO  L87              Difference]: Start difference. First operand  has 164 states, 84 states have (on average 2.107142857142857) internal successors, (177), 152 states have internal predecessors, (177), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-27 06:26:48,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-27 06:26:48,292 INFO  L93              Difference]: Finished difference Result 215 states and 235 transitions.
[2021-08-27 06:26:48,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-27 06:26:48,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9
[2021-08-27 06:26:48,294 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-27 06:26:48,302 INFO  L225             Difference]: With dead ends: 215
[2021-08-27 06:26:48,303 INFO  L226             Difference]: Without dead ends: 210
[2021-08-27 06:26:48,304 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-27 06:26:48,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2021-08-27 06:26:48,338 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 168.
[2021-08-27 06:26:48,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168 states, 90 states have (on average 1.9) internal successors, (171), 156 states have internal predecessors, (171), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2021-08-27 06:26:48,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 184 transitions.
[2021-08-27 06:26:48,343 INFO  L78                 Accepts]: Start accepts. Automaton has 168 states and 184 transitions. Word has length 9
[2021-08-27 06:26:48,343 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-08-27 06:26:48,343 INFO  L470      AbstractCegarLoop]: Abstraction has 168 states and 184 transitions.
[2021-08-27 06:26:48,343 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-27 06:26:48,344 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states and 184 transitions.
[2021-08-27 06:26:48,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-08-27 06:26:48,344 INFO  L504         BasicCegarLoop]: Found error trace
[2021-08-27 06:26:48,344 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-27 06:26:48,344 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-27 06:26:48,345 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting create_treeErr8REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, create_treeErr0REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION (and 61 more)] ===
[2021-08-27 06:26:48,345 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-27 06:26:48,345 INFO  L82        PathProgramCache]: Analyzing trace with hash 162857151, now seen corresponding path program 1 times
[2021-08-27 06:26:48,346 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-27 06:26:48,346 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423786730]
[2021-08-27 06:26:48,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-27 06:26:48,346 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-27 06:26:48,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-27 06:26:48,366 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-08-27 06:26:48,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-27 06:26:48,395 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-08-27 06:26:48,396 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-08-27 06:26:48,397 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location create_treeErr8REQUIRES_VIOLATION
[2021-08-27 06:26:48,398 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK
[2021-08-27 06:26:48,399 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK
[2021-08-27 06:26:48,399 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr0REQUIRES_VIOLATION
[2021-08-27 06:26:48,399 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr1REQUIRES_VIOLATION
[2021-08-27 06:26:48,399 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr2REQUIRES_VIOLATION
[2021-08-27 06:26:48,400 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr3REQUIRES_VIOLATION
[2021-08-27 06:26:48,400 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr4REQUIRES_VIOLATION
[2021-08-27 06:26:48,400 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr5REQUIRES_VIOLATION
[2021-08-27 06:26:48,400 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr6REQUIRES_VIOLATION
[2021-08-27 06:26:48,400 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr7REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr9REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr10REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr11REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr12REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr13REQUIRES_VIOLATION
[2021-08-27 06:26:48,401 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr14REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr15REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr16REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr17REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr18REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr19REQUIRES_VIOLATION
[2021-08-27 06:26:48,402 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr20REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr21REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr22REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr23REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr24REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr25REQUIRES_VIOLATION
[2021-08-27 06:26:48,403 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr26REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr27REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr28REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location create_treeErr29REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION
[2021-08-27 06:26:48,404 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION
[2021-08-27 06:26:48,405 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION
[2021-08-27 06:26:48,405 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION
[2021-08-27 06:26:48,405 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION
[2021-08-27 06:26:48,405 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION
[2021-08-27 06:26:48,405 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr0REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr1REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr2REQUIRES_VIOLATION
[2021-08-27 06:26:48,406 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr3REQUIRES_VIOLATION
[2021-08-27 06:26:48,407 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr4REQUIRES_VIOLATION
[2021-08-27 06:26:48,407 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr5REQUIRES_VIOLATION
[2021-08-27 06:26:48,407 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr6REQUIRES_VIOLATION
[2021-08-27 06:26:48,407 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr7REQUIRES_VIOLATION
[2021-08-27 06:26:48,407 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr8ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr9ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr10ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr11REQUIRES_VIOLATION
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr12REQUIRES_VIOLATION
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr13REQUIRES_VIOLATION
[2021-08-27 06:26:48,408 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr14REQUIRES_VIOLATION
[2021-08-27 06:26:48,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr15ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr16ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr17ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr18REQUIRES_VIOLATION
[2021-08-27 06:26:48,409 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr19REQUIRES_VIOLATION
[2021-08-27 06:26:48,410 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr20ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,410 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr21ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,410 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location free_treeErr22ASSERT_VIOLATIONMEMORY_FREE
[2021-08-27 06:26:48,410 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-08-27 06:26:48,416 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-08-27 06:26:48,429 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:26:48 BoogieIcfgContainer
[2021-08-27 06:26:48,429 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-08-27 06:26:48,430 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-08-27 06:26:48,430 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-08-27 06:26:48,430 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-08-27 06:26:48,430 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:47" (3/4) ...
[2021-08-27 06:26:48,432 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-08-27 06:26:48,457 INFO  L141         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-08-27 06:26:48,458 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-08-27 06:26:48,459 INFO  L168              Benchmark]: Toolchain (without parser) took 2095.03 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 30.5 MB in the beginning and 38.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,460 INFO  L168              Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,460 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 353.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 43.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,461 INFO  L168              Benchmark]: Boogie Preprocessor took 91.55 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,461 INFO  L168              Benchmark]: RCFGBuilder took 834.11 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 30.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,462 INFO  L168              Benchmark]: TraceAbstraction took 780.36 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 30.3 MB in the beginning and 39.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,462 INFO  L168              Benchmark]: Witness Printer took 28.08 ms. Allocated memory is still 81.8 MB. Free memory was 39.8 MB in the beginning and 38.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-08-27 06:26:48,464 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 353.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 43.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 91.55 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 834.11 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 30.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 780.36 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 30.3 MB in the beginning and 39.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB.
 * Witness Printer took 28.08 ms. Allocated memory is still 81.8 MB. Free memory was 39.8 MB in the beginning and 38.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 601]: pointer dereference may fail
    pointer dereference may fail
We found a FailurePath: 
[L633]  CALL        create_tree()
[L585]              struct node *nodelast = ((void *)0);
[L586]              struct node *node = ((void *)0);
        VAL         [node={0:0}, nodelast={0:0}]
[L587]  COND FALSE  !(__VERIFIER_nondet_int())
[L601]              node->parent = ((void *)0)

  - UnprovableResult [Line: 565]: Unable to prove that all allocated memory was freed
    Unable to prove that all allocated memory was freed
 Reason: Not analyzed. 
  - UnprovableResult [Line: 631]: Unable to prove that all allocated memory was freed
    Unable to prove that all allocated memory was freed
 Reason: Not analyzed. 
  - UnprovableResult [Line: 591]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 591]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 608]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 608]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 608]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 608]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 609]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 609]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 609]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 609]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 610]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 610]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 617]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 617]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 622]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 622]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 623]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 623]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 623]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 624]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 624]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 625]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 625]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 625]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 625]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 625]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 627]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 627]: Unable to prove that pointer dereference always succeeds
    Unable to prove that pointer dereference always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 629]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 629]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - UnprovableResult [Line: 629]: Unable to prove that free always succeeds
    Unable to prove that free always succeeds
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 10 procedures, 173 locations, 65 error locations. Started 1 CEGAR loops. OverallTime: 707.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 13.9ms, AutomataDifference: 288.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125 SDtfs, 94 SDslu, 4 SDs, 0 SdLazy, 170 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 174.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 42 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 43.2ms SatisfiabilityAnalysisTime, 122.3ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-08-27 06:26:48,530 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...