./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 839c364b
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535
--- Real Ultimate output ---
This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364
[2021-12-14 16:42:11,870 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-14 16:42:11,872 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-14 16:42:11,926 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-14 16:42:11,927 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-14 16:42:11,931 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-14 16:42:11,933 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-14 16:42:11,935 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-14 16:42:11,937 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-14 16:42:11,940 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-14 16:42:11,941 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-14 16:42:11,942 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-14 16:42:11,942 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-14 16:42:11,944 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-14 16:42:11,945 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-14 16:42:11,948 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-14 16:42:11,949 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-14 16:42:11,950 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-14 16:42:11,951 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-14 16:42:11,956 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-14 16:42:11,957 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-14 16:42:11,957 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-14 16:42:11,959 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-14 16:42:11,959 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-14 16:42:11,963 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-14 16:42:11,963 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-14 16:42:11,964 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-14 16:42:11,965 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-14 16:42:11,965 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-14 16:42:11,966 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-14 16:42:11,966 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-14 16:42:11,967 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-14 16:42:11,968 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-14 16:42:11,970 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-14 16:42:11,971 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-14 16:42:11,971 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-14 16:42:11,971 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-14 16:42:11,972 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-14 16:42:11,972 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-14 16:42:11,972 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-14 16:42:11,973 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-14 16:42:11,974 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-14 16:42:11,998 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-14 16:42:11,999 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-14 16:42:11,999 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-14 16:42:11,999 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-14 16:42:12,000 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-14 16:42:12,000 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-14 16:42:12,001 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-14 16:42:12,001 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-14 16:42:12,001 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-14 16:42:12,001 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-14 16:42:12,002 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-12-14 16:42:12,002 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-14 16:42:12,002 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-12-14 16:42:12,002 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-14 16:42:12,003 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-14 16:42:12,003 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-14 16:42:12,003 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-14 16:42:12,003 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-12-14 16:42:12,003 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-14 16:42:12,004 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-14 16:42:12,004 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-14 16:42:12,004 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-14 16:42:12,004 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-14 16:42:12,004 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-14 16:42:12,005 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-14 16:42:12,005 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-14 16:42:12,005 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-14 16:42:12,005 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-14 16:42:12,005 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-14 16:42:12,006 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-14 16:42:12,006 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-12-14 16:42:12,006 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-14 16:42:12,006 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-14 16:42:12,007 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-12-14 16:42:12,007 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535
[2021-12-14 16:42:12,207 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-14 16:42:12,223 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-14 16:42:12,225 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-14 16:42:12,226 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-14 16:42:12,227 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-14 16:42:12,228 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i
[2021-12-14 16:42:12,272 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47/FLAG04f24a0c6
[2021-12-14 16:42:12,636 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-14 16:42:12,637 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i
[2021-12-14 16:42:12,646 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47/FLAG04f24a0c6
[2021-12-14 16:42:13,010 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47
[2021-12-14 16:42:13,014 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-14 16:42:13,016 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-14 16:42:13,019 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-14 16:42:13,019 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-14 16:42:13,024 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-14 16:42:13,025 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,027 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddccde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13, skipping insertion in model container
[2021-12-14 16:42:13,027 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,031 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-14 16:42:13,066 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-14 16:42:13,225 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108]
[2021-12-14 16:42:13,451 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-14 16:42:13,480 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-14 16:42:13,490 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108]
[2021-12-14 16:42:13,523 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-14 16:42:13,545 INFO  L208         MainTranslator]: Completed translation
[2021-12-14 16:42:13,546 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13 WrapperNode
[2021-12-14 16:42:13,546 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-14 16:42:13,547 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-14 16:42:13,547 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-14 16:42:13,547 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-14 16:42:13,552 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,574 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,595 INFO  L137                Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75
[2021-12-14 16:42:13,595 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-14 16:42:13,596 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-14 16:42:13,596 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-14 16:42:13,596 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-14 16:42:13,601 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,601 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,607 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,607 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,618 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,619 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,623 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,628 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-14 16:42:13,632 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-14 16:42:13,632 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-14 16:42:13,632 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-14 16:42:13,633 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ...
[2021-12-14 16:42:13,637 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-14 16:42:13,645 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-14 16:42:13,669 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-14 16:42:13,687 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-14 16:42:13,701 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2021-12-14 16:42:13,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-14 16:42:13,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-14 16:42:13,703 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-14 16:42:13,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-14 16:42:13,704 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-12-14 16:42:13,782 INFO  L236             CfgBuilder]: Building ICFG
[2021-12-14 16:42:13,783 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-14 16:42:13,888 INFO  L277             CfgBuilder]: Performing block encoding
[2021-12-14 16:42:13,893 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-14 16:42:13,893 INFO  L301             CfgBuilder]: Removed 0 assume(true) statements.
[2021-12-14 16:42:13,894 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13 BoogieIcfgContainer
[2021-12-14 16:42:13,895 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-14 16:42:13,896 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-14 16:42:13,896 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-14 16:42:13,913 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-14 16:42:13,913 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:42:13" (1/3) ...
[2021-12-14 16:42:13,914 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afa087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:13, skipping insertion in model container
[2021-12-14 16:42:13,914 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (2/3) ...
[2021-12-14 16:42:13,914 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afa087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:13, skipping insertion in model container
[2021-12-14 16:42:13,914 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13" (3/3) ...
[2021-12-14 16:42:13,915 INFO  L111   eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i
[2021-12-14 16:42:13,918 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-12-14 16:42:13,918 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-14 16:42:13,919 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-12-14 16:42:13,919 INFO  L513   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-12-14 16:42:13,936 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,937 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,937 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,937 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,937 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,937 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,938 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,938 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,938 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,938 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,938 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,939 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,939 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,939 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,939 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,939 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,940 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,940 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,940 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,941 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,941 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,941 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,941 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,941 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,942 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,943 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,943 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,943 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,944 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,944 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,944 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,946 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,947 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,947 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,947 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,947 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,947 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,948 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,948 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,948 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-14 16:42:13,951 INFO  L148    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2021-12-14 16:42:13,983 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-14 16:42:13,988 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR
[2021-12-14 16:42:13,988 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2021-12-14 16:42:13,996 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 190 flow
[2021-12-14 16:42:14,032 INFO  L129       PetriNetUnfolder]: 3/90 cut-off events.
[2021-12-14 16:42:14,033 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2021-12-14 16:42:14,035 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. 
[2021-12-14 16:42:14,036 INFO  L82        GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 190 flow
[2021-12-14 16:42:14,045 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 167 flow
[2021-12-14 16:42:14,054 INFO  L129       PetriNetUnfolder]: 0/34 cut-off events.
[2021-12-14 16:42:14,061 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-12-14 16:42:14,061 INFO  L246   CegarLoopForPetriNet]: Found error trace
[2021-12-14 16:42:14,062 INFO  L254   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-14 16:42:14,062 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] ===
[2021-12-14 16:42:14,066 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-14 16:42:14,068 INFO  L85        PathProgramCache]: Analyzing trace with hash -547127912, now seen corresponding path program 1 times
[2021-12-14 16:42:14,074 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-14 16:42:14,076 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145357201]
[2021-12-14 16:42:14,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-14 16:42:14,078 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-14 16:42:14,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-14 16:42:14,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-14 16:42:14,361 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-14 16:42:14,361 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145357201]
[2021-12-14 16:42:14,362 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145357201] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-14 16:42:14,362 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-14 16:42:14,362 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-14 16:42:14,363 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683781275]
[2021-12-14 16:42:14,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-14 16:42:14,370 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-12-14 16:42:14,370 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-14 16:42:14,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-12-14 16:42:14,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-12-14 16:42:14,407 INFO  L499   CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91
[2021-12-14 16:42:14,414 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 167 flow. Second operand  has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,414 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-14 16:42:14,415 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91
[2021-12-14 16:42:14,416 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-14 16:42:14,534 INFO  L129       PetriNetUnfolder]: 19/179 cut-off events.
[2021-12-14 16:42:14,536 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2021-12-14 16:42:14,537 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 243 conditions, 179 events. 19/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 632 event pairs, 3 based on Foata normal form. 13/185 useless extension candidates. Maximal degree in co-relation 194. Up to 13 conditions per place. 
[2021-12-14 16:42:14,539 INFO  L132   encePairwiseOnDemand]: 78/91 looper letters, 14 selfloop transitions, 15 changer transitions 3/92 dead transitions.
[2021-12-14 16:42:14,539 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 92 transitions, 251 flow
[2021-12-14 16:42:14,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-12-14 16:42:14,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2021-12-14 16:42:14,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 662 transitions.
[2021-12-14 16:42:14,559 INFO  L544   CegarLoopForPetriNet]: DFA transition density 0.8083028083028083
[2021-12-14 16:42:14,565 INFO  L72            ComplementDD]: Start complementDD. Operand 9 states and 662 transitions.
[2021-12-14 16:42:14,566 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 9 states and 662 transitions.
[2021-12-14 16:42:14,570 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-14 16:42:14,572 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 662 transitions.
[2021-12-14 16:42:14,577 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 10 states, 9 states have (on average 73.55555555555556) internal successors, (662), 9 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,582 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,583 INFO  L81            ComplementDD]: Finished complementDD. Result  has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,584 INFO  L186             Difference]: Start difference. First operand has 83 places, 82 transitions, 167 flow. Second operand 9 states and 662 transitions.
[2021-12-14 16:42:14,585 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 92 transitions, 251 flow
[2021-12-14 16:42:14,587 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-12-14 16:42:14,589 INFO  L242             Difference]: Finished difference. Result has 91 places, 83 transitions, 236 flow
[2021-12-14 16:42:14,590 INFO  L317   CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=236, PETRI_PLACES=91, PETRI_TRANSITIONS=83}
[2021-12-14 16:42:14,593 INFO  L334   CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places.
[2021-12-14 16:42:14,593 INFO  L470      AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 236 flow
[2021-12-14 16:42:14,593 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,593 INFO  L246   CegarLoopForPetriNet]: Found error trace
[2021-12-14 16:42:14,594 INFO  L254   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-14 16:42:14,594 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-14 16:42:14,594 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] ===
[2021-12-14 16:42:14,594 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-14 16:42:14,595 INFO  L85        PathProgramCache]: Analyzing trace with hash -875946487, now seen corresponding path program 1 times
[2021-12-14 16:42:14,595 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-14 16:42:14,595 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436273813]
[2021-12-14 16:42:14,595 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-14 16:42:14,595 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-14 16:42:14,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-14 16:42:14,650 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-14 16:42:14,650 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-14 16:42:14,650 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436273813]
[2021-12-14 16:42:14,650 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436273813] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-14 16:42:14,651 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-14 16:42:14,651 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-14 16:42:14,651 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259374017]
[2021-12-14 16:42:14,651 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-14 16:42:14,652 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-12-14 16:42:14,652 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-14 16:42:14,653 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-12-14 16:42:14,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-12-14 16:42:14,654 INFO  L499   CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91
[2021-12-14 16:42:14,654 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 236 flow. Second operand  has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,654 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-14 16:42:14,654 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91
[2021-12-14 16:42:14,654 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-14 16:42:14,710 INFO  L129       PetriNetUnfolder]: 7/122 cut-off events.
[2021-12-14 16:42:14,710 INFO  L130       PetriNetUnfolder]: For 33/33 co-relation queries the response was YES.
[2021-12-14 16:42:14,710 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 211 conditions, 122 events. 7/122 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 268 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 173. Up to 10 conditions per place. 
[2021-12-14 16:42:14,711 INFO  L132   encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 5 changer transitions 11/83 dead transitions.
[2021-12-14 16:42:14,711 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 83 transitions, 272 flow
[2021-12-14 16:42:14,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-12-14 16:42:14,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-12-14 16:42:14,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions.
[2021-12-14 16:42:14,712 INFO  L544   CegarLoopForPetriNet]: DFA transition density 0.8278388278388278
[2021-12-14 16:42:14,712 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 452 transitions.
[2021-12-14 16:42:14,713 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 452 transitions.
[2021-12-14 16:42:14,713 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-14 16:42:14,713 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 452 transitions.
[2021-12-14 16:42:14,714 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,716 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,716 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,716 INFO  L186             Difference]: Start difference. First operand has 91 places, 83 transitions, 236 flow. Second operand 6 states and 452 transitions.
[2021-12-14 16:42:14,716 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 83 transitions, 272 flow
[2021-12-14 16:42:14,718 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-12-14 16:42:14,722 INFO  L242             Difference]: Finished difference. Result has 93 places, 70 transitions, 187 flow
[2021-12-14 16:42:14,722 INFO  L317   CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=93, PETRI_TRANSITIONS=70}
[2021-12-14 16:42:14,723 INFO  L334   CegarLoopForPetriNet]: 83 programPoint places, 10 predicate places.
[2021-12-14 16:42:14,723 INFO  L470      AbstractCegarLoop]: Abstraction has has 93 places, 70 transitions, 187 flow
[2021-12-14 16:42:14,723 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,723 INFO  L246   CegarLoopForPetriNet]: Found error trace
[2021-12-14 16:42:14,723 INFO  L254   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-14 16:42:14,724 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-14 16:42:14,724 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] ===
[2021-12-14 16:42:14,724 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-14 16:42:14,724 INFO  L85        PathProgramCache]: Analyzing trace with hash -17853359, now seen corresponding path program 1 times
[2021-12-14 16:42:14,725 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-14 16:42:14,725 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782266914]
[2021-12-14 16:42:14,725 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-14 16:42:14,725 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-14 16:42:14,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-14 16:42:14,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-14 16:42:14,765 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-14 16:42:14,765 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782266914]
[2021-12-14 16:42:14,765 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782266914] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-14 16:42:14,766 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-14 16:42:14,766 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-12-14 16:42:14,766 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289104422]
[2021-12-14 16:42:14,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-14 16:42:14,766 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-14 16:42:14,767 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-14 16:42:14,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-14 16:42:14,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-14 16:42:14,768 INFO  L499   CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91
[2021-12-14 16:42:14,768 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 70 transitions, 187 flow. Second operand  has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,768 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-14 16:42:14,768 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91
[2021-12-14 16:42:14,768 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-14 16:42:14,789 INFO  L129       PetriNetUnfolder]: 2/86 cut-off events.
[2021-12-14 16:42:14,790 INFO  L130       PetriNetUnfolder]: For 14/14 co-relation queries the response was YES.
[2021-12-14 16:42:14,790 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 144 conditions, 86 events. 2/86 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 121. Up to 14 conditions per place. 
[2021-12-14 16:42:14,790 INFO  L132   encePairwiseOnDemand]: 87/91 looper letters, 11 selfloop transitions, 4 changer transitions 0/71 dead transitions.
[2021-12-14 16:42:14,790 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 219 flow
[2021-12-14 16:42:14,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-14 16:42:14,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-12-14 16:42:14,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions.
[2021-12-14 16:42:14,792 INFO  L544   CegarLoopForPetriNet]: DFA transition density 0.8205128205128205
[2021-12-14 16:42:14,792 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 224 transitions.
[2021-12-14 16:42:14,792 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions.
[2021-12-14 16:42:14,792 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-14 16:42:14,792 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions.
[2021-12-14 16:42:14,793 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,793 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,794 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,794 INFO  L186             Difference]: Start difference. First operand has 93 places, 70 transitions, 187 flow. Second operand 3 states and 224 transitions.
[2021-12-14 16:42:14,794 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 219 flow
[2021-12-14 16:42:14,795 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 183 flow, removed 4 selfloop flow, removed 13 redundant places.
[2021-12-14 16:42:14,796 INFO  L242             Difference]: Finished difference. Result has 77 places, 70 transitions, 159 flow
[2021-12-14 16:42:14,796 INFO  L317   CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=77, PETRI_TRANSITIONS=70}
[2021-12-14 16:42:14,797 INFO  L334   CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places.
[2021-12-14 16:42:14,797 INFO  L470      AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 159 flow
[2021-12-14 16:42:14,797 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,797 INFO  L246   CegarLoopForPetriNet]: Found error trace
[2021-12-14 16:42:14,797 INFO  L254   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-14 16:42:14,798 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-12-14 16:42:14,798 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] ===
[2021-12-14 16:42:14,798 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-14 16:42:14,798 INFO  L85        PathProgramCache]: Analyzing trace with hash 124463274, now seen corresponding path program 1 times
[2021-12-14 16:42:14,798 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-14 16:42:14,799 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738882103]
[2021-12-14 16:42:14,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-14 16:42:14,799 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-14 16:42:14,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-14 16:42:14,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-14 16:42:14,880 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-14 16:42:14,880 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738882103]
[2021-12-14 16:42:14,880 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738882103] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-14 16:42:14,880 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-14 16:42:14,880 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-12-14 16:42:14,881 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308977934]
[2021-12-14 16:42:14,881 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-14 16:42:14,881 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-12-14 16:42:14,881 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-14 16:42:14,882 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-12-14 16:42:14,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-12-14 16:42:14,882 INFO  L499   CegarLoopForPetriNet]: Number of universal loopers: 63 out of 91
[2021-12-14 16:42:14,883 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 159 flow. Second operand  has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,883 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-14 16:42:14,883 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 91
[2021-12-14 16:42:14,883 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-14 16:42:14,918 INFO  L129       PetriNetUnfolder]: 0/58 cut-off events.
[2021-12-14 16:42:14,919 INFO  L130       PetriNetUnfolder]: For 4/5 co-relation queries the response was YES.
[2021-12-14 16:42:14,919 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 86 conditions, 58 events. 0/58 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. 
[2021-12-14 16:42:14,919 INFO  L132   encePairwiseOnDemand]: 87/91 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions.
[2021-12-14 16:42:14,919 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 58 transitions, 162 flow
[2021-12-14 16:42:14,920 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-12-14 16:42:14,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-12-14 16:42:14,920 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 334 transitions.
[2021-12-14 16:42:14,921 INFO  L544   CegarLoopForPetriNet]: DFA transition density 0.734065934065934
[2021-12-14 16:42:14,921 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 334 transitions.
[2021-12-14 16:42:14,921 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 334 transitions.
[2021-12-14 16:42:14,921 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-14 16:42:14,921 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 334 transitions.
[2021-12-14 16:42:14,922 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,923 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,923 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,923 INFO  L186             Difference]: Start difference. First operand has 77 places, 70 transitions, 159 flow. Second operand 5 states and 334 transitions.
[2021-12-14 16:42:14,923 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 58 transitions, 162 flow
[2021-12-14 16:42:14,924 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-12-14 16:42:14,924 INFO  L242             Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow
[2021-12-14 16:42:14,924 INFO  L317   CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0}
[2021-12-14 16:42:14,925 INFO  L334   CegarLoopForPetriNet]: 83 programPoint places, -16 predicate places.
[2021-12-14 16:42:14,925 INFO  L470      AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow
[2021-12-14 16:42:14,925 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-14 16:42:14,927 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2021-12-14 16:42:14,928 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2021-12-14 16:42:14,928 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining)
[2021-12-14 16:42:14,928 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2021-12-14 16:42:14,928 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2021-12-14 16:42:14,928 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-12-14 16:42:14,931 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2021-12-14 16:42:14,933 INFO  L229   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-12-14 16:42:14,933 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-12-14 16:42:14,936 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:42:14 BasicIcfg
[2021-12-14 16:42:14,936 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-12-14 16:42:14,936 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-12-14 16:42:14,936 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-12-14 16:42:14,936 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-12-14 16:42:14,937 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13" (3/4) ...
[2021-12-14 16:42:14,938 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2021-12-14 16:42:14,942 INFO  L354     RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2021-12-14 16:42:14,944 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2021-12-14 16:42:14,945 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-12-14 16:42:14,945 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-12-14 16:42:14,945 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-12-14 16:42:14,965 INFO  L141         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-12-14 16:42:14,965 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-12-14 16:42:14,966 INFO  L158              Benchmark]: Toolchain (without parser) took 1949.41ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 88.8MB in the beginning and 94.1MB in the end (delta: -5.3MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,966 INFO  L158              Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-12-14 16:42:14,966 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 527.17ms. Allocated memory is still 115.3MB. Free memory was 88.8MB in the beginning and 82.5MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,967 INFO  L158              Benchmark]: Boogie Procedure Inliner took 48.22ms. Allocated memory is still 115.3MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,967 INFO  L158              Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,967 INFO  L158              Benchmark]: RCFGBuilder took 263.12ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 67.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,968 INFO  L158              Benchmark]: TraceAbstraction took 1040.25ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 96.2MB in the end (delta: -29.5MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,968 INFO  L158              Benchmark]: Witness Printer took 29.17ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-14 16:42:14,969 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 527.17ms. Allocated memory is still 115.3MB. Free memory was 88.8MB in the beginning and 82.5MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 48.22ms. Allocated memory is still 115.3MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 35.14ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 263.12ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 67.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1040.25ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 96.2MB in the end (delta: -29.5MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB.
 * Witness Printer took 29.17ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * 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
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 114 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 26 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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
  - AllSpecificationsHoldResult: All specifications hold
    3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-12-14 16:42:15,014 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...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE