/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/forester-heap/sll-circular-2.i


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


This is Ultimate 0.2.3-dev-f954360
[2023-03-31 00:10:02,650 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-03-31 00:10:02,652 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-03-31 00:10:02,687 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-03-31 00:10:02,687 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-03-31 00:10:02,690 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2023-03-31 00:10:02,697 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-03-31 00:10:02,702 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-03-31 00:10:02,703 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-03-31 00:10:02,704 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-03-31 00:10:02,705 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-03-31 00:10:02,709 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-03-31 00:10:02,711 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-03-31 00:10:02,713 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-03-31 00:10:02,714 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-03-31 00:10:02,714 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-03-31 00:10:02,716 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-03-31 00:10:02,721 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-03-31 00:10:02,722 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-03-31 00:10:02,723 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-03-31 00:10:02,724 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-03-31 00:10:02,725 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-03-31 00:10:02,733 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-03-31 00:10:02,733 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-03-31 00:10:02,734 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-03-31 00:10:02,735 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-03-31 00:10:02,735 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-03-31 00:10:02,736 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-03-31 00:10:02,736 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-03-31 00:10:02,737 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-03-31 00:10:02,738 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-03-31 00:10:02,739 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-03-31 00:10:02,740 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-03-31 00:10:02,740 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-03-31 00:10:02,740 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2023-03-31 00:10:02,741 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-03-31 00:10:02,742 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-03-31 00:10:02,743 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
[2023-03-31 00:10:02,771 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-03-31 00:10:02,771 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-03-31 00:10:02,772 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-03-31 00:10:02,772 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-03-31 00:10:02,773 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-03-31 00:10:02,773 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-03-31 00:10:02,774 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-03-31 00:10:02,774 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-03-31 00:10:02,774 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-03-31 00:10:02,774 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-03-31 00:10:02,775 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-03-31 00:10:02,775 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-03-31 00:10:02,775 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-03-31 00:10:02,775 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-03-31 00:10:02,776 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-03-31 00:10:02,777 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-03-31 00:10:02,777 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-03-31 00:10:02,777 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-03-31 00:10:02,777 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-31 00:10:02,777 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-03-31 00:10:02,777 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-03-31 00:10:02,778 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-03-31 00:10:02,778 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-03-31 00:10:02,778 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-03-31 00:10:02,778 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-03-31 00:10:02,778 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-03-31 00:10:02,779 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-03-31 00:10:02,779 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-03-31 00:10:02,779 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-03-31 00:10:02,779 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-03-31 00:10:03,031 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-03-31 00:10:03,053 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-03-31 00:10:03,056 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-03-31 00:10:03,057 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-03-31 00:10:03,057 INFO  L275        PluginConnector]: CDTParser initialized
[2023-03-31 00:10:03,059 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-circular-2.i
[2023-03-31 00:10:04,280 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-03-31 00:10:04,530 INFO  L351              CDTParser]: Found 1 translation units.
[2023-03-31 00:10:04,531 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i
[2023-03-31 00:10:04,542 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62f243559/39614a09ab6e4e7da2a0fe5df16fd8b5/FLAGcf63ae761
[2023-03-31 00:10:04,558 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62f243559/39614a09ab6e4e7da2a0fe5df16fd8b5
[2023-03-31 00:10:04,560 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-03-31 00:10:04,561 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-03-31 00:10:04,562 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-03-31 00:10:04,563 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-03-31 00:10:04,565 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-03-31 00:10:04,566 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:04,567 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d86db82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04, skipping insertion in model container
[2023-03-31 00:10:04,567 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:04,575 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-03-31 00:10:04,628 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-03-31 00:10:04,846 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337]
[2023-03-31 00:10:04,853 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443]
[2023-03-31 00:10:04,857 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567]
[2023-03-31 00:10:04,865 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-31 00:10:04,880 INFO  L203         MainTranslator]: Completed pre-run
[2023-03-31 00:10:04,935 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337]
[2023-03-31 00:10:04,939 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443]
[2023-03-31 00:10:04,941 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567]
[2023-03-31 00:10:04,943 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-31 00:10:04,968 INFO  L208         MainTranslator]: Completed translation
[2023-03-31 00:10:04,969 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04 WrapperNode
[2023-03-31 00:10:04,969 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-03-31 00:10:04,970 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-03-31 00:10:04,970 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-03-31 00:10:04,970 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-03-31 00:10:04,981 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:04,982 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:04,992 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:04,992 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,004 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,012 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,014 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,016 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,021 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-03-31 00:10:05,022 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-03-31 00:10:05,022 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-03-31 00:10:05,022 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-03-31 00:10:05,023 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (1/1) ...
[2023-03-31 00:10:05,040 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-31 00:10:05,050 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-03-31 00:10:05,067 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)
[2023-03-31 00:10:05,069 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
[2023-03-31 00:10:05,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-03-31 00:10:05,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-03-31 00:10:05,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-03-31 00:10:05,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-03-31 00:10:05,098 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2023-03-31 00:10:05,098 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2023-03-31 00:10:05,098 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2023-03-31 00:10:05,098 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2023-03-31 00:10:05,099 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2023-03-31 00:10:05,100 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2023-03-31 00:10:05,101 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2023-03-31 00:10:05,102 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2023-03-31 00:10:05,103 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure aligned_alloc
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-03-31 00:10:05,104 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure at_quick_exit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure quick_exit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2023-03-31 00:10:05,105 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2023-03-31 00:10:05,106 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2023-03-31 00:10:05,107 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2023-03-31 00:10:05,108 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-03-31 00:10:05,109 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-03-31 00:10:05,110 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-03-31 00:10:05,301 INFO  L236             CfgBuilder]: Building ICFG
[2023-03-31 00:10:05,303 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-03-31 00:10:05,547 INFO  L277             CfgBuilder]: Performing block encoding
[2023-03-31 00:10:05,552 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-03-31 00:10:05,552 INFO  L302             CfgBuilder]: Removed 9 assume(true) statements.
[2023-03-31 00:10:05,553 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:10:05 BoogieIcfgContainer
[2023-03-31 00:10:05,553 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-03-31 00:10:05,555 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-03-31 00:10:05,555 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-03-31 00:10:05,558 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-03-31 00:10:05,558 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:10:04" (1/3) ...
[2023-03-31 00:10:05,559 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff89f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:10:05, skipping insertion in model container
[2023-03-31 00:10:05,559 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:04" (2/3) ...
[2023-03-31 00:10:05,559 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff89f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:10:05, skipping insertion in model container
[2023-03-31 00:10:05,559 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:10:05" (3/3) ...
[2023-03-31 00:10:05,560 INFO  L112   eAbstractionObserver]: Analyzing ICFG sll-circular-2.i
[2023-03-31 00:10:05,572 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-03-31 00:10:05,573 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-03-31 00:10:05,628 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-03-31 00:10:05,635 INFO  L357      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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64277201, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-03-31 00:10:05,636 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-03-31 00:10:05,641 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 38 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 33 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-03-31 00:10:05,648 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-03-31 00:10:05,648 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:05,649 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:05,649 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-31 00:10:05,655 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:05,656 INFO  L85        PathProgramCache]: Analyzing trace with hash -1187458044, now seen corresponding path program 1 times
[2023-03-31 00:10:05,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:05,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275503720]
[2023-03-31 00:10:05,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:05,665 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:05,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:05,978 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:05,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:06,003 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-03-31 00:10:06,003 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:06,004 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275503720]
[2023-03-31 00:10:06,004 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275503720] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:06,004 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:06,004 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-03-31 00:10:06,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172322826]
[2023-03-31 00:10:06,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:06,022 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-03-31 00:10:06,023 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:06,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-03-31 00:10:06,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-03-31 00:10:06,076 INFO  L87              Difference]: Start difference. First operand  has 38 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 33 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,183 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:06,184 INFO  L93              Difference]: Finished difference Result 70 states and 106 transitions.
[2023-03-31 00:10:06,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-03-31 00:10:06,186 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10
[2023-03-31 00:10:06,187 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:06,193 INFO  L225             Difference]: With dead ends: 70
[2023-03-31 00:10:06,193 INFO  L226             Difference]: Without dead ends: 30
[2023-03-31 00:10:06,196 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-03-31 00:10:06,199 INFO  L413           NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:06,200 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:06,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2023-03-31 00:10:06,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2023-03-31 00:10:06,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,230 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions.
[2023-03-31 00:10:06,231 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 10
[2023-03-31 00:10:06,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:06,232 INFO  L495      AbstractCegarLoop]: Abstraction has 30 states and 35 transitions.
[2023-03-31 00:10:06,232 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,232 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions.
[2023-03-31 00:10:06,233 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-03-31 00:10:06,233 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:06,233 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:06,233 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-03-31 00:10:06,233 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-31 00:10:06,234 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:06,234 INFO  L85        PathProgramCache]: Analyzing trace with hash 1802537944, now seen corresponding path program 1 times
[2023-03-31 00:10:06,234 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:06,234 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430039959]
[2023-03-31 00:10:06,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:06,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:06,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:06,494 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:06,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:06,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-03-31 00:10:06,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:06,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430039959]
[2023-03-31 00:10:06,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430039959] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:06,501 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:06,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-03-31 00:10:06,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152243315]
[2023-03-31 00:10:06,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:06,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-03-31 00:10:06,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:06,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-03-31 00:10:06,503 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-03-31 00:10:06,503 INFO  L87              Difference]: Start difference. First operand 30 states and 35 transitions. Second operand  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:06,631 INFO  L93              Difference]: Finished difference Result 46 states and 53 transitions.
[2023-03-31 00:10:06,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-03-31 00:10:06,632 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2023-03-31 00:10:06,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:06,635 INFO  L225             Difference]: With dead ends: 46
[2023-03-31 00:10:06,635 INFO  L226             Difference]: Without dead ends: 42
[2023-03-31 00:10:06,637 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-03-31 00:10:06,638 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 66 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:06,639 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 17 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:06,642 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2023-03-31 00:10:06,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32.
[2023-03-31 00:10:06,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions.
[2023-03-31 00:10:06,650 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 11
[2023-03-31 00:10:06,651 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:06,651 INFO  L495      AbstractCegarLoop]: Abstraction has 32 states and 38 transitions.
[2023-03-31 00:10:06,651 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions.
[2023-03-31 00:10:06,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-03-31 00:10:06,653 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:06,653 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:06,653 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-03-31 00:10:06,654 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-31 00:10:06,655 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:06,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 111468679, now seen corresponding path program 1 times
[2023-03-31 00:10:06,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:06,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389831725]
[2023-03-31 00:10:06,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:06,656 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:06,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:06,746 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:06,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:06,753 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-03-31 00:10:06,754 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:06,755 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389831725]
[2023-03-31 00:10:06,758 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389831725] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:06,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:06,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-03-31 00:10:06,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785683611]
[2023-03-31 00:10:06,762 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:06,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-03-31 00:10:06,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:06,763 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-03-31 00:10:06,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-03-31 00:10:06,764 INFO  L87              Difference]: Start difference. First operand 32 states and 38 transitions. Second operand  has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,881 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:06,882 INFO  L93              Difference]: Finished difference Result 75 states and 90 transitions.
[2023-03-31 00:10:06,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-03-31 00:10:06,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2023-03-31 00:10:06,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:06,888 INFO  L225             Difference]: With dead ends: 75
[2023-03-31 00:10:06,888 INFO  L226             Difference]: Without dead ends: 53
[2023-03-31 00:10:06,889 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-03-31 00:10:06,894 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 72 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:06,895 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 12 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:06,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2023-03-31 00:10:06,908 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39.
[2023-03-31 00:10:06,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,918 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions.
[2023-03-31 00:10:06,918 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 14
[2023-03-31 00:10:06,918 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:06,919 INFO  L495      AbstractCegarLoop]: Abstraction has 39 states and 47 transitions.
[2023-03-31 00:10:06,919 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-31 00:10:06,919 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2023-03-31 00:10:06,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2023-03-31 00:10:06,920 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:06,920 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:06,920 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-03-31 00:10:06,921 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-31 00:10:06,922 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:06,922 INFO  L85        PathProgramCache]: Analyzing trace with hash 1556962980, now seen corresponding path program 1 times
[2023-03-31 00:10:06,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:06,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710178346]
[2023-03-31 00:10:06,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:06,922 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:06,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-03-31 00:10:06,968 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-03-31 00:10:06,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-03-31 00:10:07,027 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-03-31 00:10:07,028 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-03-31 00:10:07,029 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2023-03-31 00:10:07,031 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2023-03-31 00:10:07,031 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining)
[2023-03-31 00:10:07,032 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-03-31 00:10:07,035 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-03-31 00:10:07,039 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-03-31 00:10:07,073 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:10:07 BoogieIcfgContainer
[2023-03-31 00:10:07,073 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-03-31 00:10:07,074 INFO  L158              Benchmark]: Toolchain (without parser) took 2512.40ms. Allocated memory is still 239.1MB. Free memory was 187.2MB in the beginning and 126.9MB in the end (delta: 60.3MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB.
[2023-03-31 00:10:07,074 INFO  L158              Benchmark]: CDTParser took 0.18ms. Allocated memory is still 199.2MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-03-31 00:10:07,074 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 406.74ms. Allocated memory is still 239.1MB. Free memory was 186.7MB in the beginning and 169.4MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
[2023-03-31 00:10:07,077 INFO  L158              Benchmark]: Boogie Preprocessor took 51.18ms. Allocated memory is still 239.1MB. Free memory was 169.4MB in the beginning and 166.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-03-31 00:10:07,077 INFO  L158              Benchmark]: RCFGBuilder took 531.65ms. Allocated memory is still 239.1MB. Free memory was 166.8MB in the beginning and 145.3MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
[2023-03-31 00:10:07,077 INFO  L158              Benchmark]: TraceAbstraction took 1517.87ms. Allocated memory is still 239.1MB. Free memory was 144.7MB in the beginning and 126.9MB in the end (delta: 17.9MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB.
[2023-03-31 00:10:07,079 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18ms. Allocated memory is still 199.2MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 406.74ms. Allocated memory is still 239.1MB. Free memory was 186.7MB in the beginning and 169.4MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 51.18ms. Allocated memory is still 239.1MB. Free memory was 169.4MB in the beginning and 166.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 531.65ms. Allocated memory is still 239.1MB. Free memory was 166.8MB in the beginning and 145.3MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
 * TraceAbstraction took 1517.87ms. Allocated memory is still 239.1MB. Free memory was 144.7MB in the beginning and 126.9MB in the end (delta: 17.9MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 1032]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L996]               SLL* head = malloc(sizeof(SLL));
[L997]               head->next = head
[L998]               head->data = 0
[L1000]              SLL* x = head;
[L1001]              int state = 1;
         VAL         [head={-1:0}, state=1, x={-1:0}]
[L1004]  COND FALSE  !(__VERIFIER_nondet_int())
[L1025]              x->data = state
[L1027]  EXPR        head->next
[L1027]              x = head->next
[L1028]  COND FALSE  !(!(((void*)0) != x))
         VAL         [head={-1:0}, state=1, x={-1:0}]
[L1030]  EXPR        x->data
         VAL         [head={-1:0}, state=1, x->data=1, x={-1:0}]
[L1030]  COND TRUE   x->data != 0
[L1032]  EXPR        x->next
[L1032]  EXPR        x->next->data
[L1032]  EXPR        x->next->data != 0 && x->data > x->next->data
[L1032]  EXPR        x->data
[L1032]  EXPR        x->next
[L1032]  EXPR        x->next->data
[L1032]  EXPR        x->next->data != 0 && x->data > x->next->data
         VAL         [head={-1:0}, state=1, x->data=1, x->next->data != 0 && x->data > x->next->data=0, x->next->data=1, x->next->data=1, x->next={-1:0}, x->next={-1:0}, x={-1:0}]
[L1032]  COND TRUE   !(x->next->data != 0 && x->data > x->next->data)
[L1032]              reach_error()
         VAL         [head={-1:0}, state=1, x={-1:0}]

  - UnprovableResult [Line: 1023]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1028]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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!
[2023-03-31 00:10:07,097 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...