/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 15:31:04,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 15:31:04,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 15:31:04,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 15:31:04,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 15:31:04,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 15:31:04,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 15:31:04,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 15:31:04,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 15:31:04,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 15:31:04,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 15:31:04,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 15:31:04,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 15:31:04,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 15:31:04,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 15:31:04,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 15:31:04,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-12 15:31:04,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 15:31:04,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 15:31:04,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 15:31:04,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 15:31:04,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 15:31:04,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 15:31:04,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 15:31:04,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 15:31:04,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 15:31:04,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 15:31:04,810 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 15:31:04,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 15:31:04,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 15:31:04,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 15:31:04,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 15:31:04,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 15:31:04,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 15:31:04,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 15:31:04,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 15:31:04,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 15:31:04,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 15:31:04,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 15:31:04,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 15:31:04,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 15:31:04,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 15:31:05,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 15:31:05,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 15:31:05,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 15:31:05,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 15:31:05,086 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 15:31:05,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-12 15:31:05,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88badcd5d/83e194737198481e87d79f9c1b417204/FLAG22041f760 [2021-06-12 15:31:05,657 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 15:31:05,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-12 15:31:05,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88badcd5d/83e194737198481e87d79f9c1b417204/FLAG22041f760 [2021-06-12 15:31:06,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88badcd5d/83e194737198481e87d79f9c1b417204 [2021-06-12 15:31:06,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 15:31:06,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 15:31:06,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 15:31:06,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 15:31:06,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 15:31:06,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af22817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06, skipping insertion in model container [2021-06-12 15:31:06,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 15:31:06,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 15:31:06,337 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:31:06,488 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-06-12 15:31:06,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:31:06,507 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 15:31:06,518 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:31:06,532 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-06-12 15:31:06,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:31:06,596 INFO L208 MainTranslator]: Completed translation [2021-06-12 15:31:06,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06 WrapperNode [2021-06-12 15:31:06,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 15:31:06,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 15:31:06,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 15:31:06,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 15:31:06,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 15:31:06,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 15:31:06,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 15:31:06,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 15:31:06,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... [2021-06-12 15:31:06,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 15:31:06,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 15:31:06,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 15:31:06,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 15:31:06,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 15:31:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 15:31:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 15:31:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 15:31:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-06-12 15:31:06,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-06-12 15:31:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 15:31:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 15:31:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 15:31:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 15:31:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 15:31:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 15:31:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-06-12 15:31:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-06-12 15:31:06,741 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 15:31:07,170 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 15:31:07,170 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-12 15:31:07,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:31:07 BoogieIcfgContainer [2021-06-12 15:31:07,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 15:31:07,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 15:31:07,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 15:31:07,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 15:31:07,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 03:31:06" (1/3) ... [2021-06-12 15:31:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b70fc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:31:07, skipping insertion in model container [2021-06-12 15:31:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:31:06" (2/3) ... [2021-06-12 15:31:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b70fc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:31:07, skipping insertion in model container [2021-06-12 15:31:07,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:31:07" (3/3) ... [2021-06-12 15:31:07,202 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-06-12 15:31:07,207 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 15:31:07,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 15:31:07,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 15:31:07,208 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 15:31:07,249 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,249 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,249 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,250 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,251 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,252 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,252 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,252 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,253 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,254 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,254 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,255 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,255 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,255 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,255 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,256 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,256 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,256 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,256 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,257 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,258 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,259 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,259 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,259 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,259 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,259 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,260 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,261 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,261 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,262 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,262 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,262 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,262 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,262 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,263 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,263 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,263 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,263 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,263 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,264 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,265 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,266 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,266 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,266 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,266 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,266 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,267 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,268 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,270 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,270 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,270 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,270 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,274 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,275 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,275 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,275 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,276 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,276 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,276 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,276 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,281 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,283 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,283 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,283 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,284 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,284 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,284 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,286 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,287 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,287 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,287 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,290 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,290 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,290 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:31:07,327 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-06-12 15:31:07,348 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:31:07,370 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:31:07,370 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:31:07,371 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:31:07,371 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:31:07,371 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:31:07,371 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:31:07,371 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:31:07,371 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == reader======== [2021-06-12 15:31:07,386 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-12 15:31:13,646 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:14,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:31:14,513 INFO L301 ceAbstractionStarter]: Result for error location reader was SAFE (1/4) [2021-06-12 15:31:14,516 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:31:14,521 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:31:14,521 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:31:14,522 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:31:14,522 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:31:14,522 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:31:14,522 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:31:14,522 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:31:14,522 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork2======== [2021-06-12 15:31:14,526 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-12 15:31:20,385 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-12 15:31:20,504 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:20,505 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:20,505 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:20,526 INFO L82 PathProgramCache]: Analyzing trace with hash 266014307, now seen corresponding path program 1 times [2021-06-12 15:31:20,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:20,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404436844] [2021-06-12 15:31:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:20,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:20,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404436844] [2021-06-12 15:31:20,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404436844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:20,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:20,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:31:20,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636304362] [2021-06-12 15:31:20,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:31:20,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:31:20,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:31:20,924 INFO L87 Difference]: Start difference. First operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-06-12 15:31:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:22,644 INFO L93 Difference]: Finished difference Result 136999 states and 557226 transitions. [2021-06-12 15:31:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-12 15:31:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) Word has length 48 [2021-06-12 15:31:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:23,233 INFO L225 Difference]: With dead ends: 136999 [2021-06-12 15:31:23,233 INFO L226 Difference]: Without dead ends: 57509 [2021-06-12 15:31:23,235 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 102.2ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:31:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57509 states. [2021-06-12 15:31:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57509 to 44817. [2021-06-12 15:31:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44817 states, 44815 states have (on average 4.00780988508312) internal successors, (179610), 44816 states have internal predecessors, (179610), 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) [2021-06-12 15:31:25,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44817 states to 44817 states and 179610 transitions. [2021-06-12 15:31:25,638 INFO L78 Accepts]: Start accepts. Automaton has 44817 states and 179610 transitions. Word has length 48 [2021-06-12 15:31:25,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:25,639 INFO L482 AbstractCegarLoop]: Abstraction has 44817 states and 179610 transitions. [2021-06-12 15:31:25,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-06-12 15:31:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 44817 states and 179610 transitions. [2021-06-12 15:31:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 15:31:25,674 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:25,674 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:25,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 15:31:25,674 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:25,675 INFO L82 PathProgramCache]: Analyzing trace with hash -356152759, now seen corresponding path program 1 times [2021-06-12 15:31:25,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:25,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28177415] [2021-06-12 15:31:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:26,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:26,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28177415] [2021-06-12 15:31:26,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28177415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:26,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:26,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 15:31:26,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617672919] [2021-06-12 15:31:26,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 15:31:26,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:26,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 15:31:26,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:31:26,071 INFO L87 Difference]: Start difference. First operand 44817 states and 179610 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-12 15:31:26,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:26,387 INFO L93 Difference]: Finished difference Result 41725 states and 160732 transitions. [2021-06-12 15:31:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 15:31:26,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) Word has length 51 [2021-06-12 15:31:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:26,555 INFO L225 Difference]: With dead ends: 41725 [2021-06-12 15:31:26,555 INFO L226 Difference]: Without dead ends: 40393 [2021-06-12 15:31:26,556 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:31:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40393 states. [2021-06-12 15:31:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40393 to 40393. [2021-06-12 15:31:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40393 states, 40391 states have (on average 3.8517986680201033) internal successors, (155578), 40392 states have internal predecessors, (155578), 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) [2021-06-12 15:31:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40393 states to 40393 states and 155578 transitions. [2021-06-12 15:31:28,074 INFO L78 Accepts]: Start accepts. Automaton has 40393 states and 155578 transitions. Word has length 51 [2021-06-12 15:31:28,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:28,074 INFO L482 AbstractCegarLoop]: Abstraction has 40393 states and 155578 transitions. [2021-06-12 15:31:28,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-12 15:31:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 40393 states and 155578 transitions. [2021-06-12 15:31:28,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 15:31:28,091 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:28,091 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:28,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 15:31:28,092 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:28,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:28,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1238919617, now seen corresponding path program 2 times [2021-06-12 15:31:28,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:28,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775695064] [2021-06-12 15:31:28,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:28,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:28,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775695064] [2021-06-12 15:31:28,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775695064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:28,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:28,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-12 15:31:28,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102187599] [2021-06-12 15:31:28,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-12 15:31:28,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:28,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-12 15:31:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:31:28,187 INFO L87 Difference]: Start difference. First operand 40393 states and 155578 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-06-12 15:31:28,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:28,677 INFO L93 Difference]: Finished difference Result 49018 states and 185436 transitions. [2021-06-12 15:31:28,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:31:28,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) Word has length 51 [2021-06-12 15:31:28,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:28,841 INFO L225 Difference]: With dead ends: 49018 [2021-06-12 15:31:28,841 INFO L226 Difference]: Without dead ends: 46612 [2021-06-12 15:31:28,842 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:31:29,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46612 states. [2021-06-12 15:31:29,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46612 to 33457. [2021-06-12 15:31:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33457 states, 33455 states have (on average 3.818353011507996) internal successors, (127743), 33456 states have internal predecessors, (127743), 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) [2021-06-12 15:31:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33457 states to 33457 states and 127743 transitions. [2021-06-12 15:31:29,974 INFO L78 Accepts]: Start accepts. Automaton has 33457 states and 127743 transitions. Word has length 51 [2021-06-12 15:31:29,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:29,974 INFO L482 AbstractCegarLoop]: Abstraction has 33457 states and 127743 transitions. [2021-06-12 15:31:29,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-06-12 15:31:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 33457 states and 127743 transitions. [2021-06-12 15:31:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 15:31:29,988 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:29,988 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:29,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 15:31:29,988 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:29,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:29,989 INFO L82 PathProgramCache]: Analyzing trace with hash -70072805, now seen corresponding path program 1 times [2021-06-12 15:31:29,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:29,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931799409] [2021-06-12 15:31:29,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:30,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:30,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931799409] [2021-06-12 15:31:30,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931799409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:30,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:30,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:31:30,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129150682] [2021-06-12 15:31:30,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:31:30,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:30,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:31:30,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:31:30,062 INFO L87 Difference]: Start difference. First operand 33457 states and 127743 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-12 15:31:30,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:30,731 INFO L93 Difference]: Finished difference Result 64224 states and 243821 transitions. [2021-06-12 15:31:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 15:31:30,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2021-06-12 15:31:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:30,948 INFO L225 Difference]: With dead ends: 64224 [2021-06-12 15:31:30,949 INFO L226 Difference]: Without dead ends: 54908 [2021-06-12 15:31:30,949 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:31:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54908 states. [2021-06-12 15:31:32,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54908 to 29786. [2021-06-12 15:31:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29786 states, 29784 states have (on average 3.8131211388665056) internal successors, (113570), 29785 states have internal predecessors, (113570), 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) [2021-06-12 15:31:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29786 states to 29786 states and 113570 transitions. [2021-06-12 15:31:32,112 INFO L78 Accepts]: Start accepts. Automaton has 29786 states and 113570 transitions. Word has length 53 [2021-06-12 15:31:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:32,112 INFO L482 AbstractCegarLoop]: Abstraction has 29786 states and 113570 transitions. [2021-06-12 15:31:32,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-12 15:31:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 29786 states and 113570 transitions. [2021-06-12 15:31:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-12 15:31:32,124 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:32,124 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:32,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 15:31:32,124 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:32,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1382365090, now seen corresponding path program 1 times [2021-06-12 15:31:32,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:32,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309657605] [2021-06-12 15:31:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:32,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:32,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309657605] [2021-06-12 15:31:32,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309657605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:32,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:32,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:31:32,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65600626] [2021-06-12 15:31:32,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:31:32,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:31:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:31:32,179 INFO L87 Difference]: Start difference. First operand 29786 states and 113570 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-06-12 15:31:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:32,277 INFO L93 Difference]: Finished difference Result 17079 states and 60712 transitions. [2021-06-12 15:31:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:31:32,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) Word has length 54 [2021-06-12 15:31:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:32,310 INFO L225 Difference]: With dead ends: 17079 [2021-06-12 15:31:32,310 INFO L226 Difference]: Without dead ends: 15763 [2021-06-12 15:31:32,311 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:31:32,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15763 states. [2021-06-12 15:31:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15763 to 14851. [2021-06-12 15:31:32,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14851 states, 14850 states have (on average 3.5493602693602693) internal successors, (52708), 14850 states have internal predecessors, (52708), 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) [2021-06-12 15:31:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14851 states to 14851 states and 52708 transitions. [2021-06-12 15:31:32,817 INFO L78 Accepts]: Start accepts. Automaton has 14851 states and 52708 transitions. Word has length 54 [2021-06-12 15:31:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:32,817 INFO L482 AbstractCegarLoop]: Abstraction has 14851 states and 52708 transitions. [2021-06-12 15:31:32,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-06-12 15:31:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 14851 states and 52708 transitions. [2021-06-12 15:31:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 15:31:32,835 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:32,835 INFO L472 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-06-12 15:31:32,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 15:31:32,835 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:32,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1390461149, now seen corresponding path program 1 times [2021-06-12 15:31:32,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:32,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194890373] [2021-06-12 15:31:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:32,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:32,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194890373] [2021-06-12 15:31:32,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194890373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:32,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:32,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 15:31:32,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645715585] [2021-06-12 15:31:32,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 15:31:32,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:32,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 15:31:32,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-12 15:31:32,908 INFO L87 Difference]: Start difference. First operand 14851 states and 52708 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 15:31:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:33,078 INFO L93 Difference]: Finished difference Result 16915 states and 59672 transitions. [2021-06-12 15:31:33,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 15:31:33,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) Word has length 61 [2021-06-12 15:31:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:33,107 INFO L225 Difference]: With dead ends: 16915 [2021-06-12 15:31:33,108 INFO L226 Difference]: Without dead ends: 14521 [2021-06-12 15:31:33,108 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 74.2ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:31:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14521 states. [2021-06-12 15:31:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14521 to 13609. [2021-06-12 15:31:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13609 states, 13608 states have (on average 3.55761316872428) internal successors, (48412), 13608 states have internal predecessors, (48412), 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) [2021-06-12 15:31:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13609 states to 13609 states and 48412 transitions. [2021-06-12 15:31:33,516 INFO L78 Accepts]: Start accepts. Automaton has 13609 states and 48412 transitions. Word has length 61 [2021-06-12 15:31:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:33,516 INFO L482 AbstractCegarLoop]: Abstraction has 13609 states and 48412 transitions. [2021-06-12 15:31:33,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 15:31:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 13609 states and 48412 transitions. [2021-06-12 15:31:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 15:31:33,532 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:33,532 INFO L472 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-06-12 15:31:33,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 15:31:33,532 INFO L430 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:33,533 INFO L82 PathProgramCache]: Analyzing trace with hash -352032653, now seen corresponding path program 2 times [2021-06-12 15:31:33,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:33,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422769413] [2021-06-12 15:31:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 15:31:33,548 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 15:31:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 15:31:33,559 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 15:31:33,591 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 15:31:33,591 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 15:31:33,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 15:31:33,592 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork2 was UNSAFE (2/4) [2021-06-12 15:31:33,593 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:31:33,594 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:31:33,594 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:31:33,594 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:31:33,594 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:31:33,594 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:31:33,594 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:31:33,594 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:31:33,594 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork3======== [2021-06-12 15:31:33,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-12 15:31:39,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 15:31:39,677 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:39,677 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:39,677 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash -984098930, now seen corresponding path program 1 times [2021-06-12 15:31:39,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:39,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126188694] [2021-06-12 15:31:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:39,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:39,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126188694] [2021-06-12 15:31:39,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126188694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:39,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:39,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:31:39,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413235542] [2021-06-12 15:31:39,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:31:39,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:31:39,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:31:39,822 INFO L87 Difference]: Start difference. First operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-06-12 15:31:41,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:41,164 INFO L93 Difference]: Finished difference Result 139495 states and 565842 transitions. [2021-06-12 15:31:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-12 15:31:41,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) Word has length 36 [2021-06-12 15:31:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:41,377 INFO L225 Difference]: With dead ends: 139495 [2021-06-12 15:31:41,377 INFO L226 Difference]: Without dead ends: 57269 [2021-06-12 15:31:41,377 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 84.2ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:31:41,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57269 states. [2021-06-12 15:31:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57269 to 44577. [2021-06-12 15:31:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44577 states, 44575 states have (on average 4.011351654514862) internal successors, (178806), 44576 states have internal predecessors, (178806), 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) [2021-06-12 15:31:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44577 states to 44577 states and 178806 transitions. [2021-06-12 15:31:42,877 INFO L78 Accepts]: Start accepts. Automaton has 44577 states and 178806 transitions. Word has length 36 [2021-06-12 15:31:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:42,877 INFO L482 AbstractCegarLoop]: Abstraction has 44577 states and 178806 transitions. [2021-06-12 15:31:42,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-06-12 15:31:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 44577 states and 178806 transitions. [2021-06-12 15:31:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-12 15:31:42,878 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:42,878 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:42,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 15:31:42,878 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1635968132, now seen corresponding path program 1 times [2021-06-12 15:31:42,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:42,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607436747] [2021-06-12 15:31:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:43,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:43,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607436747] [2021-06-12 15:31:43,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607436747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:43,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:43,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 15:31:43,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579166860] [2021-06-12 15:31:43,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 15:31:43,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:43,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 15:31:43,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:31:43,232 INFO L87 Difference]: Start difference. First operand 44577 states and 178806 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-06-12 15:31:43,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:43,591 INFO L93 Difference]: Finished difference Result 41515 states and 160066 transitions. [2021-06-12 15:31:43,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 15:31:43,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) Word has length 39 [2021-06-12 15:31:43,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:43,711 INFO L225 Difference]: With dead ends: 41515 [2021-06-12 15:31:43,711 INFO L226 Difference]: Without dead ends: 40543 [2021-06-12 15:31:43,711 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:31:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40543 states. [2021-06-12 15:31:44,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40543 to 40543. [2021-06-12 15:31:44,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40543 states, 40541 states have (on average 3.8536789916380947) internal successors, (156232), 40542 states have internal predecessors, (156232), 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) [2021-06-12 15:31:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40543 states to 40543 states and 156232 transitions. [2021-06-12 15:31:45,043 INFO L78 Accepts]: Start accepts. Automaton has 40543 states and 156232 transitions. Word has length 39 [2021-06-12 15:31:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:45,043 INFO L482 AbstractCegarLoop]: Abstraction has 40543 states and 156232 transitions. [2021-06-12 15:31:45,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-06-12 15:31:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 40543 states and 156232 transitions. [2021-06-12 15:31:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-12 15:31:45,044 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:45,044 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:45,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 15:31:45,044 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:45,045 INFO L82 PathProgramCache]: Analyzing trace with hash -936417620, now seen corresponding path program 2 times [2021-06-12 15:31:45,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:45,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273190383] [2021-06-12 15:31:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:45,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:45,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273190383] [2021-06-12 15:31:45,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273190383] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:45,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:45,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-12 15:31:45,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193292340] [2021-06-12 15:31:45,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-12 15:31:45,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:45,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-12 15:31:45,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:31:45,076 INFO L87 Difference]: Start difference. First operand 40543 states and 156232 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-06-12 15:31:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:45,210 INFO L93 Difference]: Finished difference Result 28307 states and 101757 transitions. [2021-06-12 15:31:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-12 15:31:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) Word has length 39 [2021-06-12 15:31:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:45,266 INFO L225 Difference]: With dead ends: 28307 [2021-06-12 15:31:45,266 INFO L226 Difference]: Without dead ends: 25287 [2021-06-12 15:31:45,267 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:31:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25287 states. [2021-06-12 15:31:45,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25287 to 22140. [2021-06-12 15:31:45,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22140 states, 22135 states have (on average 3.6149988705669753) internal successors, (80018), 22139 states have internal predecessors, (80018), 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) [2021-06-12 15:31:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22140 states to 22140 states and 80018 transitions. [2021-06-12 15:31:45,957 INFO L78 Accepts]: Start accepts. Automaton has 22140 states and 80018 transitions. Word has length 39 [2021-06-12 15:31:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:45,958 INFO L482 AbstractCegarLoop]: Abstraction has 22140 states and 80018 transitions. [2021-06-12 15:31:45,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-06-12 15:31:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 22140 states and 80018 transitions. [2021-06-12 15:31:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 15:31:45,967 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:45,967 INFO L472 BasicCegarLoop]: 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] [2021-06-12 15:31:45,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 15:31:45,968 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash -652853471, now seen corresponding path program 1 times [2021-06-12 15:31:45,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:45,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653695701] [2021-06-12 15:31:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:46,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:46,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653695701] [2021-06-12 15:31:46,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653695701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:46,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:46,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:31:46,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245766307] [2021-06-12 15:31:46,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:31:46,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:46,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:31:46,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:31:46,013 INFO L87 Difference]: Start difference. First operand 22140 states and 80018 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-12 15:31:46,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:46,430 INFO L93 Difference]: Finished difference Result 23982 states and 84642 transitions. [2021-06-12 15:31:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 15:31:46,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2021-06-12 15:31:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:46,488 INFO L225 Difference]: With dead ends: 23982 [2021-06-12 15:31:46,488 INFO L226 Difference]: Without dead ends: 17305 [2021-06-12 15:31:46,489 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:31:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17305 states. [2021-06-12 15:31:46,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17305 to 14095. [2021-06-12 15:31:46,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14095 states, 14094 states have (on average 3.5788278700156093) internal successors, (50440), 14094 states have internal predecessors, (50440), 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) [2021-06-12 15:31:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14095 states to 14095 states and 50440 transitions. [2021-06-12 15:31:46,745 INFO L78 Accepts]: Start accepts. Automaton has 14095 states and 50440 transitions. Word has length 53 [2021-06-12 15:31:46,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:46,745 INFO L482 AbstractCegarLoop]: Abstraction has 14095 states and 50440 transitions. [2021-06-12 15:31:46,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-12 15:31:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 14095 states and 50440 transitions. [2021-06-12 15:31:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 15:31:46,761 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:46,762 INFO L472 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-06-12 15:31:46,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 15:31:46,762 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:46,762 INFO L82 PathProgramCache]: Analyzing trace with hash -454203158, now seen corresponding path program 1 times [2021-06-12 15:31:46,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:46,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665437574] [2021-06-12 15:31:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:31:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:31:46,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:31:46,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665437574] [2021-06-12 15:31:46,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665437574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:31:46,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:31:46,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 15:31:46,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599430967] [2021-06-12 15:31:46,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 15:31:46,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:31:46,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 15:31:46,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-12 15:31:46,835 INFO L87 Difference]: Start difference. First operand 14095 states and 50440 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 15:31:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:31:46,964 INFO L93 Difference]: Finished difference Result 16463 states and 58488 transitions. [2021-06-12 15:31:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 15:31:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) Word has length 61 [2021-06-12 15:31:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:31:46,987 INFO L225 Difference]: With dead ends: 16463 [2021-06-12 15:31:46,987 INFO L226 Difference]: Without dead ends: 11767 [2021-06-12 15:31:46,987 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 43.3ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-06-12 15:31:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-06-12 15:31:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 10855. [2021-06-12 15:31:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10855 states, 10854 states have (on average 3.5459738345310483) internal successors, (38488), 10854 states have internal predecessors, (38488), 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) [2021-06-12 15:31:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10855 states to 10855 states and 38488 transitions. [2021-06-12 15:31:47,309 INFO L78 Accepts]: Start accepts. Automaton has 10855 states and 38488 transitions. Word has length 61 [2021-06-12 15:31:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:31:47,309 INFO L482 AbstractCegarLoop]: Abstraction has 10855 states and 38488 transitions. [2021-06-12 15:31:47,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 15:31:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10855 states and 38488 transitions. [2021-06-12 15:31:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 15:31:47,318 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:31:47,318 INFO L472 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-06-12 15:31:47,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 15:31:47,318 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:31:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:31:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -700104114, now seen corresponding path program 2 times [2021-06-12 15:31:47,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:31:47,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009500372] [2021-06-12 15:31:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:31:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 15:31:47,330 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 15:31:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 15:31:47,338 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 15:31:47,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 15:31:47,349 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 15:31:47,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 15:31:47,349 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork3 was UNSAFE (3/4) [2021-06-12 15:31:47,349 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 15:31:47,350 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:31:47,350 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:31:47,350 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:31:47,350 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:31:47,350 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:31:47,350 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:31:47,350 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:31:47,350 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 15:31:47,352 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-12 15:31:53,180 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-12 15:31:53,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:31:53,417 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/4) [2021-06-12 15:31:53,418 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 15:31:53,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 03:31:53 BasicIcfg [2021-06-12 15:31:53,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 15:31:53,522 INFO L168 Benchmark]: Toolchain (without parser) took 47351.59 ms. Allocated memory was 203.4 MB in the beginning and 7.5 GB in the end (delta: 7.3 GB). Free memory was 167.5 MB in the beginning and 4.1 GB in the end (delta: -3.9 GB). Peak memory consumption was 3.4 GB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,522 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 203.4 MB. Free memory was 185.8 MB in the beginning and 185.7 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 15:31:53,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.64 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 166.5 MB in the end (delta: 879.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.15 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 164.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,523 INFO L168 Benchmark]: Boogie Preprocessor took 18.74 ms. Allocated memory is still 203.4 MB. Free memory was 164.4 MB in the beginning and 162.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,523 INFO L168 Benchmark]: RCFGBuilder took 501.17 ms. Allocated memory is still 203.4 MB. Free memory was 162.9 MB in the beginning and 131.1 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,523 INFO L168 Benchmark]: TraceAbstraction took 46346.64 ms. Allocated memory was 203.4 MB in the beginning and 7.5 GB in the end (delta: 7.3 GB). Free memory was 130.8 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.4 GB. Max. memory is 8.0 GB. [2021-06-12 15:31:53,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 203.4 MB. Free memory was 185.8 MB in the beginning and 185.7 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 425.64 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 166.5 MB in the end (delta: 879.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.15 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 164.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.74 ms. Allocated memory is still 203.4 MB. Free memory was 164.4 MB in the beginning and 162.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 501.17 ms. Allocated memory is still 203.4 MB. Free memory was 162.9 MB in the beginning and 131.1 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46346.64 ms. Allocated memory was 203.4 MB in the beginning and 7.5 GB in the end (delta: 7.3 GB). Free memory was 130.8 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.4 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; VAL [r=0, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 4 int l; VAL [r=0, w=0, x=0, y=0] [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=1, w=0, x=0, y=0] [L730] 4 y = l VAL [r=1, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 4 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 4 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 4 l = r-1 VAL [r=1, w=0, x=0, y=0] [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L727] 2 l = x VAL [r=2, w=0, x=0, y=0] [L730] 2 y = l VAL [r=2, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 4 r = l VAL [r=0, w=0, x=0, y=0] [L714] CALL 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 2 int lx = x; VAL [r=0, w=1, x=3, y=0] [L738] COND TRUE 2 !(ly == lx) VAL [r=0, w=1, x=3, y=0] [L738] 2 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: reader with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7144.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 863.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6276.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19070.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 226.1ms, AutomataDifference: 4761.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5864.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1229 SDtfs, 1448 SDslu, 2529 SDs, 0 SdLazy, 336 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 224.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 281.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7116.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 52793 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.2ms SsaConstructionTime, 183.0ms SatisfiabilityAnalysisTime, 663.3ms InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork3 with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13755.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 120.9ms, AutomataDifference: 2936.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5996.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1123 SDtfs, 1156 SDslu, 2597 SDs, 0 SdLazy, 291 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 192.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 188.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4092.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19961 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.7ms SsaConstructionTime, 325.7ms SatisfiabilityAnalysisTime, 209.2ms InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6067.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 237.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5829.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...