/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-token-1.i


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


This is Ultimate 0.2.3-dev-f954360
[2023-03-31 00:10:33,029 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-03-31 00:10:33,031 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2023-03-31 00:10:33,111 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-03-31 00:10:33,112 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-03-31 00:10:33,113 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-03-31 00:10:33,130 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-03-31 00:10:33,134 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2023-03-31 00:10:33,136 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-03-31 00:10:33,137 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-03-31 00:10:33,138 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-03-31 00:10:33,146 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2023-03-31 00:10:33,146 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2023-03-31 00:10:33,149 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-03-31 00:10:33,149 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-03-31 00:10:33,150 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-03-31 00:10:33,151 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-03-31 00:10:33,151 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-03-31 00:10:33,152 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2023-03-31 00:10:33,153 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-03-31 00:10:33,169 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-03-31 00:10:33,171 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 00:10:33,213 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-03-31 00:10:33,214 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-03-31 00:10:33,214 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-03-31 00:10:33,215 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-03-31 00:10:33,216 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-03-31 00:10:33,216 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-03-31 00:10:33,216 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-03-31 00:10:33,217 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-03-31 00:10:33,217 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-03-31 00:10:33,217 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-03-31 00:10:33,218 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-03-31 00:10:33,219 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-03-31 00:10:33,219 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-31 00:10:33,220 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-03-31 00:10:33,220 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-03-31 00:10:33,221 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-03-31 00:10:33,221 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-03-31 00:10:33,221 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-03-31 00:10:33,221 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-03-31 00:10:33,221 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-03-31 00:10:33,686 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-03-31 00:10:33,712 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-03-31 00:10:33,714 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-03-31 00:10:33,715 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-03-31 00:10:33,722 INFO  L275        PluginConnector]: CDTParser initialized
[2023-03-31 00:10:33,724 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-token-1.i
[2023-03-31 00:10:35,715 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-03-31 00:10:36,192 INFO  L351              CDTParser]: Found 1 translation units.
[2023-03-31 00:10:36,193 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-token-1.i
[2023-03-31 00:10:36,222 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53375b72/b77288e406504d7bb6c79601bce21a7d/FLAGd5b194354
[2023-03-31 00:10:36,246 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53375b72/b77288e406504d7bb6c79601bce21a7d
[2023-03-31 00:10:36,257 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-03-31 00:10:36,258 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-03-31 00:10:36,259 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-03-31 00:10:36,259 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-03-31 00:10:36,271 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-03-31 00:10:36,285 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:36,287 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70677ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36, skipping insertion in model container
[2023-03-31 00:10:36,287 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:36,293 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-03-31 00:10:36,364 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-03-31 00:10:36,780 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-token-1.i[22162,22175]
[2023-03-31 00:10:36,790 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-token-1.i[22311,22324]
[2023-03-31 00:10:36,790 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-token-1.i[22402,22415]
[2023-03-31 00:10:36,792 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-token-1.i[22484,22497]
[2023-03-31 00:10:36,811 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-token-1.i[22562,22575]
[2023-03-31 00:10:36,814 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-token-1.i[22708,22721]
[2023-03-31 00:10:36,818 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-31 00:10:36,827 INFO  L203         MainTranslator]: Completed pre-run
[2023-03-31 00:10:36,882 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-token-1.i[22162,22175]
[2023-03-31 00:10:36,883 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-token-1.i[22311,22324]
[2023-03-31 00:10:36,884 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-token-1.i[22402,22415]
[2023-03-31 00:10:36,884 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-token-1.i[22484,22497]
[2023-03-31 00:10:36,902 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-token-1.i[22562,22575]
[2023-03-31 00:10:36,905 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-token-1.i[22708,22721]
[2023-03-31 00:10:36,906 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-31 00:10:36,941 INFO  L208         MainTranslator]: Completed translation
[2023-03-31 00:10:36,943 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36 WrapperNode
[2023-03-31 00:10:36,943 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-03-31 00:10:36,946 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-03-31 00:10:36,946 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-03-31 00:10:36,946 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-03-31 00:10:36,966 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:36,966 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,019 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,019 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,039 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,043 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,045 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,046 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,074 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-03-31 00:10:37,082 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-03-31 00:10:37,082 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-03-31 00:10:37,082 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-03-31 00:10:37,083 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (1/1) ...
[2023-03-31 00:10:37,091 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-31 00:10:37,107 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-03-31 00:10:37,119 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 00:10:37,142 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 00:10:37,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-03-31 00:10:37,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-03-31 00:10:37,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-03-31 00:10:37,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2023-03-31 00:10:37,171 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2023-03-31 00:10:37,188 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2023-03-31 00:10:37,189 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2023-03-31 00:10:37,189 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2023-03-31 00:10:37,189 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2023-03-31 00:10:37,190 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2023-03-31 00:10:37,190 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2023-03-31 00:10:37,190 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2023-03-31 00:10:37,190 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2023-03-31 00:10:37,190 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2023-03-31 00:10:37,191 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2023-03-31 00:10:37,191 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2023-03-31 00:10:37,191 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2023-03-31 00:10:37,192 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2023-03-31 00:10:37,192 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2023-03-31 00:10:37,193 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2023-03-31 00:10:37,193 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2023-03-31 00:10:37,193 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2023-03-31 00:10:37,193 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2023-03-31 00:10:37,193 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2023-03-31 00:10:37,194 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2023-03-31 00:10:37,195 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2023-03-31 00:10:37,195 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2023-03-31 00:10:37,196 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2023-03-31 00:10:37,197 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure aligned_alloc
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure at_quick_exit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure quick_exit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2023-03-31 00:10:37,198 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2023-03-31 00:10:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2023-03-31 00:10:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2023-03-31 00:10:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2023-03-31 00:10:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2023-03-31 00:10:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2023-03-31 00:10:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2023-03-31 00:10:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2023-03-31 00:10:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2023-03-31 00:10:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2023-03-31 00:10:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2023-03-31 00:10:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-03-31 00:10:37,209 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-03-31 00:10:37,210 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-03-31 00:10:37,211 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-03-31 00:10:37,211 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-03-31 00:10:37,211 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-03-31 00:10:37,582 INFO  L236             CfgBuilder]: Building ICFG
[2023-03-31 00:10:37,584 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-03-31 00:10:38,030 INFO  L277             CfgBuilder]: Performing block encoding
[2023-03-31 00:10:38,035 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-03-31 00:10:38,035 INFO  L302             CfgBuilder]: Removed 15 assume(true) statements.
[2023-03-31 00:10:38,057 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:10:38 BoogieIcfgContainer
[2023-03-31 00:10:38,058 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-03-31 00:10:38,063 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-03-31 00:10:38,063 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-03-31 00:10:38,065 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-03-31 00:10:38,065 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:10:36" (1/3) ...
[2023-03-31 00:10:38,066 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389131d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:10:38, skipping insertion in model container
[2023-03-31 00:10:38,066 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:10:36" (2/3) ...
[2023-03-31 00:10:38,066 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389131d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:10:38, skipping insertion in model container
[2023-03-31 00:10:38,067 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:10:38" (3/3) ...
[2023-03-31 00:10:38,067 INFO  L112   eAbstractionObserver]: Analyzing ICFG sll-token-1.i
[2023-03-31 00:10:38,086 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-03-31 00:10:38,086 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-03-31 00:10:38,167 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-03-31 00:10:38,184 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;@7216f2ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-03-31 00:10:38,185 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-03-31 00:10:38,193 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 49 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 44 states have internal predecessors, (68), 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 00:10:38,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-03-31 00:10:38,199 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:38,199 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:38,200 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-03-31 00:10:38,204 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:38,204 INFO  L85        PathProgramCache]: Analyzing trace with hash 364969828, now seen corresponding path program 1 times
[2023-03-31 00:10:38,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:38,219 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252151374]
[2023-03-31 00:10:38,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:38,220 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:38,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:38,639 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:38,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:38,677 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 00:10:38,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:38,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252151374]
[2023-03-31 00:10:38,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252151374] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:38,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:38,678 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-03-31 00:10:38,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227169959]
[2023-03-31 00:10:38,680 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:38,700 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-03-31 00:10:38,701 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:38,751 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-03-31 00:10:38,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-03-31 00:10:38,754 INFO  L87              Difference]: Start difference. First operand  has 49 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 44 states have internal predecessors, (68), 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 00:10:38,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:38,904 INFO  L93              Difference]: Finished difference Result 92 states and 138 transitions.
[2023-03-31 00:10:38,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-03-31 00:10:38,907 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 00:10:38,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:38,914 INFO  L225             Difference]: With dead ends: 92
[2023-03-31 00:10:38,914 INFO  L226             Difference]: Without dead ends: 43
[2023-03-31 00:10:38,917 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 00:10:38,920 INFO  L413           NwaCegarLoop]: 7 mSDtfsCounter, 44 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:38,921 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 10 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:38,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2023-03-31 00:10:38,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2023-03-31 00:10:38,957 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 39 states have internal predecessors, (42), 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 00:10:38,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions.
[2023-03-31 00:10:38,959 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 10
[2023-03-31 00:10:38,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:38,960 INFO  L495      AbstractCegarLoop]: Abstraction has 43 states and 45 transitions.
[2023-03-31 00:10:38,960 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 00:10:38,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions.
[2023-03-31 00:10:38,960 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-03-31 00:10:38,960 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:38,961 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:38,961 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-03-31 00:10:38,961 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-03-31 00:10:38,961 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:38,962 INFO  L85        PathProgramCache]: Analyzing trace with hash 364203207, now seen corresponding path program 1 times
[2023-03-31 00:10:38,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:38,962 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773949733]
[2023-03-31 00:10:38,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:38,962 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:39,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:39,182 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:39,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:39,188 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 00:10:39,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:39,189 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773949733]
[2023-03-31 00:10:39,189 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773949733] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:39,189 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:39,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-03-31 00:10:39,189 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234479485]
[2023-03-31 00:10:39,189 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:39,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-03-31 00:10:39,190 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:39,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-03-31 00:10:39,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-03-31 00:10:39,191 INFO  L87              Difference]: Start difference. First operand 43 states and 45 transitions. Second operand  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 00:10:39,346 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:39,346 INFO  L93              Difference]: Finished difference Result 43 states and 45 transitions.
[2023-03-31 00:10:39,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-03-31 00:10:39,347 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 00:10:39,347 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:39,365 INFO  L225             Difference]: With dead ends: 43
[2023-03-31 00:10:39,365 INFO  L226             Difference]: Without dead ends: 41
[2023-03-31 00:10:39,366 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:10:39,367 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 42 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:39,368 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:39,371 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-03-31 00:10:39,379 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2023-03-31 00:10:39,379 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 37 states have internal predecessors, (40), 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 00:10:39,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions.
[2023-03-31 00:10:39,384 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10
[2023-03-31 00:10:39,384 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:39,384 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 43 transitions.
[2023-03-31 00:10:39,384 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 00:10:39,384 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions.
[2023-03-31 00:10:39,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-03-31 00:10:39,385 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:39,385 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:39,385 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-03-31 00:10:39,386 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-03-31 00:10:39,387 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:39,387 INFO  L85        PathProgramCache]: Analyzing trace with hash -1594645978, now seen corresponding path program 1 times
[2023-03-31 00:10:39,387 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:39,401 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350336702]
[2023-03-31 00:10:39,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:39,402 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:39,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:39,624 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-31 00:10:39,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-31 00:10:39,633 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 00:10:39,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-31 00:10:39,651 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350336702]
[2023-03-31 00:10:39,651 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350336702] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-31 00:10:39,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-31 00:10:39,654 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-03-31 00:10:39,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021687696]
[2023-03-31 00:10:39,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-31 00:10:39,655 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-03-31 00:10:39,655 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-31 00:10:39,656 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-03-31 00:10:39,656 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-03-31 00:10:39,656 INFO  L87              Difference]: Start difference. First operand 41 states and 43 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 00:10:39,823 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-31 00:10:39,823 INFO  L93              Difference]: Finished difference Result 67 states and 70 transitions.
[2023-03-31 00:10:39,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-03-31 00:10:39,824 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 00:10:39,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-31 00:10:39,827 INFO  L225             Difference]: With dead ends: 67
[2023-03-31 00:10:39,827 INFO  L226             Difference]: Without dead ends: 65
[2023-03-31 00:10:39,828 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-03-31 00:10:39,830 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 139 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-03-31 00:10:39,831 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 17 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-03-31 00:10:39,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2023-03-31 00:10:39,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39.
[2023-03-31 00:10:39,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39 states, 32 states have (on average 1.1875) internal successors, (38), 35 states have internal predecessors, (38), 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 00:10:39,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions.
[2023-03-31 00:10:39,860 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11
[2023-03-31 00:10:39,860 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-31 00:10:39,860 INFO  L495      AbstractCegarLoop]: Abstraction has 39 states and 41 transitions.
[2023-03-31 00:10:39,860 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 00:10:39,861 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions.
[2023-03-31 00:10:39,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-03-31 00:10:39,861 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-31 00:10:39,861 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-31 00:10:39,861 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-03-31 00:10:39,862 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-03-31 00:10:39,862 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-31 00:10:39,862 INFO  L85        PathProgramCache]: Analyzing trace with hash -1812212429, now seen corresponding path program 1 times
[2023-03-31 00:10:39,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-31 00:10:39,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260576122]
[2023-03-31 00:10:39,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-31 00:10:39,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-31 00:10:39,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-03-31 00:10:39,920 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-03-31 00:10:39,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-03-31 00:10:40,009 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-03-31 00:10:40,009 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-03-31 00:10:40,010 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2023-03-31 00:10:40,011 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2023-03-31 00:10:40,011 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining)
[2023-03-31 00:10:40,026 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining)
[2023-03-31 00:10:40,026 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining)
[2023-03-31 00:10:40,028 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining)
[2023-03-31 00:10:40,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-03-31 00:10:40,032 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-03-31 00:10:40,035 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-03-31 00:10:40,071 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:10:40 BoogieIcfgContainer
[2023-03-31 00:10:40,071 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-03-31 00:10:40,071 INFO  L158              Benchmark]: Toolchain (without parser) took 3813.26ms. Allocated memory is still 209.7MB. Free memory was 165.2MB in the beginning and 117.6MB in the end (delta: 47.6MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB.
[2023-03-31 00:10:40,072 INFO  L158              Benchmark]: CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-03-31 00:10:40,072 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 684.41ms. Allocated memory is still 209.7MB. Free memory was 164.9MB in the beginning and 147.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
[2023-03-31 00:10:40,072 INFO  L158              Benchmark]: Boogie Preprocessor took 128.45ms. Allocated memory is still 209.7MB. Free memory was 147.0MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2023-03-31 00:10:40,072 INFO  L158              Benchmark]: RCFGBuilder took 975.82ms. Allocated memory is still 209.7MB. Free memory was 143.9MB in the beginning and 121.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
[2023-03-31 00:10:40,072 INFO  L158              Benchmark]: TraceAbstraction took 2008.51ms. Allocated memory is still 209.7MB. Free memory was 121.2MB in the beginning and 117.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.8MB. Max. memory is 8.0GB.
[2023-03-31 00:10:40,073 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 684.41ms. Allocated memory is still 209.7MB. Free memory was 164.9MB in the beginning and 147.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 128.45ms. Allocated memory is still 209.7MB. Free memory was 147.0MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 975.82ms. Allocated memory is still 209.7MB. Free memory was 143.9MB in the beginning and 121.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
 * TraceAbstraction took 2008.51ms. Allocated memory is still 209.7MB. Free memory was 121.2MB in the beginning and 117.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.8MB. 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: 1031]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L1003]              SLL* head = malloc(sizeof(SLL));
[L1004]              head->next = ((void*)0)
[L1005]              head->data = 0
[L1007]              SLL* x = head;
         VAL         [head={-1:0}, x={-1:0}]
[L1010]  COND FALSE  !(__VERIFIER_nondet_int())
[L1018]              x->data = 1
[L1019]              x->next = malloc(sizeof(SLL))
[L1020]  EXPR        x->next
[L1020]              x->next->data = 2
[L1022]              x = head
         VAL         [head={-1:0}, x={-1:0}]
[L1024]  COND FALSE  !(!(((void*)0) != x))
         VAL         [head={-1:0}, x={-1:0}]
[L1026]  EXPR        x->data
         VAL         [head={-1:0}, x->data=1, x={-1:0}]
[L1026]  COND FALSE  !(1 != x->data)
[L1031]  EXPR        x->data
         VAL         [head={-1:0}, x->data=1, x={-1:0}]
[L1031]  COND TRUE   !(2 == x->data)
[L1031]              reach_error()
         VAL         [head={-1:0}, x={-1:0}]

  - UnprovableResult [Line: 1016]: 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: 1024]: 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. 
  - UnprovableResult [Line: 1033]: 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: 1043]: 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, 52 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 17 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 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 00:10:40,109 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...