/usr/bin/java -Xmx16000000000 -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-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 08:38:30,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 08:38:30,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 08:38:30,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 08:38:30,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 08:38:30,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 08:38:30,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 08:38:30,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 08:38:30,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 08:38:30,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 08:38:30,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 08:38:30,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 08:38:30,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 08:38:30,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 08:38:30,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 08:38:30,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 08:38:30,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 08:38:30,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 08:38:30,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 08:38:30,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 08:38:30,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 08:38:30,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 08:38:30,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 08:38:30,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 08:38:30,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 08:38:30,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 08:38:30,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 08:38:30,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 08:38:30,772 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-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 08:38:30,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 08:38:30,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 08:38:30,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 08:38:30,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 08:38:30,792 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 08:38:30,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 08:38:30,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 08:38:30,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 08:38:30,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 08:38:30,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 08:38:30,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 08:38:30,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 08:38:30,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 08:38:30,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 08:38:30,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 08:38:30,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 08:38:30,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 08:38:30,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 08:38:30,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 08:38:30,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 08:38:30,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 08:38:30,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 08:38:30,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 08:38:30,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 08:38:30,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 08:38:30,797 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 08:38:31,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 08:38:31,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 08:38:31,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 08:38:31,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 08:38:31,115 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 08:38:31,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-26 08:38:31,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2420c04/f3c1591dc902490d99c17c9d9d227f50/FLAG6d1ddda06 [2021-03-26 08:38:31,709 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 08:38:31,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-26 08:38:31,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2420c04/f3c1591dc902490d99c17c9d9d227f50/FLAG6d1ddda06 [2021-03-26 08:38:32,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2420c04/f3c1591dc902490d99c17c9d9d227f50 [2021-03-26 08:38:32,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 08:38:32,013 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 08:38:32,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 08:38:32,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 08:38:32,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 08:38:32,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8604bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32, skipping insertion in model container [2021-03-26 08:38:32,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 08:38:32,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 08:38:32,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-26 08:38:32,307 WARN L226 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] [2021-03-26 08:38:32,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 08:38:32,319 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 08:38:32,331 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-26 08:38:32,350 WARN L226 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] [2021-03-26 08:38:32,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 08:38:32,410 INFO L208 MainTranslator]: Completed translation [2021-03-26 08:38:32,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32 WrapperNode [2021-03-26 08:38:32,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 08:38:32,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 08:38:32,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 08:38:32,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 08:38:32,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 08:38:32,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 08:38:32,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 08:38:32,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 08:38:32,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (1/1) ... [2021-03-26 08:38:32,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 08:38:32,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 08:38:32,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 08:38:32,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 08:38:32,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (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 [2021-03-26 08:38:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-26 08:38:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 08:38:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 08:38:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-26 08:38:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 08:38:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 08:38:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-26 08:38:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-26 08:38:32,533 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 08:38:32,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 08:38:32,979 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 08:38:32,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 08:38:32 BoogieIcfgContainer [2021-03-26 08:38:32,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 08:38:32,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 08:38:32,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 08:38:32,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 08:38:32,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 08:38:32" (1/3) ... [2021-03-26 08:38:32,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2310ef05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 08:38:32, skipping insertion in model container [2021-03-26 08:38:32,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:38:32" (2/3) ... [2021-03-26 08:38:32,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2310ef05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 08:38:32, skipping insertion in model container [2021-03-26 08:38:32,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 08:38:32" (3/3) ... [2021-03-26 08:38:32,990 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-26 08:38:32,994 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 08:38:32,998 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 08:38:32,998 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 08:38:33,039 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,041 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,042 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,042 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,042 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,042 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,043 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,043 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,043 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,045 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,045 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,045 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,045 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,046 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,047 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,048 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,049 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,050 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,051 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,051 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,051 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,051 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,051 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,052 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,052 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,052 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,052 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,052 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,053 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,054 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,055 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,056 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,056 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,056 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,056 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,056 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,057 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,058 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,058 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,058 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,059 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,060 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,062 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,063 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,063 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,064 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,072 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,072 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,072 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,073 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,073 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,073 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,075 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,075 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,075 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,079 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,080 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,080 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,080 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,080 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,080 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,082 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,082 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,082 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,082 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,083 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,083 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,083 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,083 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,083 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:38:33,105 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-26 08:38:33,122 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-26 08:38:33,148 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 08:38:33,148 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 08:38:33,148 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 08:38:33,148 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 08:38:33,148 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 08:38:33,148 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 08:38:33,149 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 08:38:33,149 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 08:38:33,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-26 08:38:33,229 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-26 08:38:33,229 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-26 08:38:33,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 144 events. 19/144 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-26 08:38:33,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-26 08:38:33,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-26 08:38:33,251 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:33,263 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-26 08:38:33,266 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-26 08:38:33,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-26 08:38:33,310 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-26 08:38:33,311 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-26 08:38:33,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 128 events. 16/128 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 333 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-26 08:38:33,316 INFO L142 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-26 08:38:35,320 INFO L154 LiptonReduction]: Checked pairs total: 4484 [2021-03-26 08:38:35,320 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 08:38:35,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2073 [2021-03-26 08:38:35,331 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 08:38:35,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 08:38:35,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:35,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:35,332 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:35,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:35,336 INFO L82 PathProgramCache]: Analyzing trace with hash -434817972, now seen corresponding path program 1 times [2021-03-26 08:38:35,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:35,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710426763] [2021-03-26 08:38:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:35,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:35,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:35,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:35,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:35,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:35,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:35,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:35,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:35,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710426763] [2021-03-26 08:38:35,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:35,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:35,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998315317] [2021-03-26 08:38:35,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:38:35,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:35,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:38:35,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:38:35,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-26 08:38:35,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2021-03-26 08:38:35,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:35,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-26 08:38:35,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:36,105 INFO L129 PetriNetUnfolder]: 1159/2475 cut-off events. [2021-03-26 08:38:36,105 INFO L130 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2021-03-26 08:38:36,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4523 conditions, 2475 events. 1159/2475 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 18914 event pairs, 210 based on Foata normal form. 135/2288 useless extension candidates. Maximal degree in co-relation 3949. Up to 935 conditions per place. [2021-03-26 08:38:36,134 INFO L132 encePairwiseOnDemand]: 142/154 looper letters, 58 selfloop transitions, 26 changer transitions 0/118 dead transitions. [2021-03-26 08:38:36,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 455 flow [2021-03-26 08:38:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 08:38:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 08:38:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-26 08:38:36,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-26 08:38:36,152 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-26 08:38:36,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-26 08:38:36,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:36,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-26 08:38:36,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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) [2021-03-26 08:38:36,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 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) [2021-03-26 08:38:36,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 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) [2021-03-26 08:38:36,175 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 158 flow. Second operand 9 states and 1168 transitions. [2021-03-26 08:38:36,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 455 flow [2021-03-26 08:38:36,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 118 transitions, 421 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-26 08:38:36,192 INFO L241 Difference]: Finished difference. Result has 61 places, 78 transitions, 267 flow [2021-03-26 08:38:36,194 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=267, PETRI_PLACES=61, PETRI_TRANSITIONS=78} [2021-03-26 08:38:36,194 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-26 08:38:36,194 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:36,195 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-26 08:38:36,195 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-26 08:38:36,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 78 transitions, 267 flow [2021-03-26 08:38:36,239 INFO L129 PetriNetUnfolder]: 178/662 cut-off events. [2021-03-26 08:38:36,242 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-03-26 08:38:36,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 662 events. 178/662 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5141 event pairs, 5 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 725. Up to 116 conditions per place. [2021-03-26 08:38:36,251 INFO L142 LiptonReduction]: Number of co-enabled transitions 2066 [2021-03-26 08:38:37,004 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-26 08:38:37,257 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-26 08:38:37,742 INFO L154 LiptonReduction]: Checked pairs total: 7440 [2021-03-26 08:38:37,742 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 08:38:37,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1548 [2021-03-26 08:38:37,743 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 74 transitions, 259 flow [2021-03-26 08:38:37,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2021-03-26 08:38:37,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:37,744 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:37,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 08:38:37,744 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:37,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1245912937, now seen corresponding path program 1 times [2021-03-26 08:38:37,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:37,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424738366] [2021-03-26 08:38:37,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:37,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:37,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:37,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:37,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:37,837 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 08:38:37,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:38:37,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:37,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424738366] [2021-03-26 08:38:37,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:37,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:37,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488402312] [2021-03-26 08:38:37,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 08:38:37,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:37,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 08:38:37,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 08:38:37,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 158 [2021-03-26 08:38:37,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 74 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-03-26 08:38:37,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:37,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 158 [2021-03-26 08:38:37,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:38,197 INFO L129 PetriNetUnfolder]: 1194/3581 cut-off events. [2021-03-26 08:38:38,197 INFO L130 PetriNetUnfolder]: For 281/323 co-relation queries the response was YES. [2021-03-26 08:38:38,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5762 conditions, 3581 events. 1194/3581 cut-off events. For 281/323 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 36981 event pairs, 76 based on Foata normal form. 227/3601 useless extension candidates. Maximal degree in co-relation 4565. Up to 564 conditions per place. [2021-03-26 08:38:38,227 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 28 selfloop transitions, 19 changer transitions 0/107 dead transitions. [2021-03-26 08:38:38,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 452 flow [2021-03-26 08:38:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:38:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:38:38,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 651 transitions. [2021-03-26 08:38:38,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8240506329113924 [2021-03-26 08:38:38,229 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 651 transitions. [2021-03-26 08:38:38,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 651 transitions. [2021-03-26 08:38:38,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:38,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 651 transitions. [2021-03-26 08:38:38,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 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) [2021-03-26 08:38:38,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-03-26 08:38:38,233 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-03-26 08:38:38,233 INFO L185 Difference]: Start difference. First operand has 57 places, 74 transitions, 259 flow. Second operand 5 states and 651 transitions. [2021-03-26 08:38:38,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 452 flow [2021-03-26 08:38:38,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 107 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 08:38:38,240 INFO L241 Difference]: Finished difference. Result has 63 places, 90 transitions, 363 flow [2021-03-26 08:38:38,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=363, PETRI_PLACES=63, PETRI_TRANSITIONS=90} [2021-03-26 08:38:38,240 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2021-03-26 08:38:38,241 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:38,241 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-26 08:38:38,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-26 08:38:38,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 90 transitions, 363 flow [2021-03-26 08:38:38,421 INFO L129 PetriNetUnfolder]: 726/2545 cut-off events. [2021-03-26 08:38:38,421 INFO L130 PetriNetUnfolder]: For 254/259 co-relation queries the response was YES. [2021-03-26 08:38:38,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3999 conditions, 2545 events. 726/2545 cut-off events. For 254/259 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26293 event pairs, 18 based on Foata normal form. 0/2389 useless extension candidates. Maximal degree in co-relation 3329. Up to 454 conditions per place. [2021-03-26 08:38:38,458 INFO L142 LiptonReduction]: Number of co-enabled transitions 2536 [2021-03-26 08:38:39,150 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-26 08:38:39,293 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-26 08:38:39,614 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-26 08:38:39,759 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-26 08:38:39,996 INFO L154 LiptonReduction]: Checked pairs total: 1788 [2021-03-26 08:38:39,996 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 08:38:39,996 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1755 [2021-03-26 08:38:39,997 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 89 transitions, 361 flow [2021-03-26 08:38:39,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-03-26 08:38:39,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:39,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:39,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 08:38:39,998 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:39,998 INFO L82 PathProgramCache]: Analyzing trace with hash 905083927, now seen corresponding path program 1 times [2021-03-26 08:38:39,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:39,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373435305] [2021-03-26 08:38:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:40,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:40,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:40,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:40,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:40,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373435305] [2021-03-26 08:38:40,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:40,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:40,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715247450] [2021-03-26 08:38:40,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:38:40,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:40,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:38:40,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:38:40,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2021-03-26 08:38:40,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 89 transitions, 361 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2021-03-26 08:38:40,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:40,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2021-03-26 08:38:40,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:41,074 INFO L129 PetriNetUnfolder]: 4240/10672 cut-off events. [2021-03-26 08:38:41,074 INFO L130 PetriNetUnfolder]: For 3856/3940 co-relation queries the response was YES. [2021-03-26 08:38:41,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22628 conditions, 10672 events. 4240/10672 cut-off events. For 3856/3940 co-relation queries the response was YES. Maximal size of possible extension queue 964. Compared 117983 event pairs, 531 based on Foata normal form. 15/9819 useless extension candidates. Maximal degree in co-relation 17228. Up to 2861 conditions per place. [2021-03-26 08:38:41,281 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 94 selfloop transitions, 77 changer transitions 0/214 dead transitions. [2021-03-26 08:38:41,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 214 transitions, 1255 flow [2021-03-26 08:38:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 08:38:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 08:38:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-26 08:38:41,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8162124388539483 [2021-03-26 08:38:41,285 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-26 08:38:41,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-26 08:38:41,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:41,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-26 08:38:41,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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) [2021-03-26 08:38:41,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-26 08:38:41,291 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-26 08:38:41,291 INFO L185 Difference]: Start difference. First operand has 62 places, 89 transitions, 361 flow. Second operand 9 states and 1168 transitions. [2021-03-26 08:38:41,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 214 transitions, 1255 flow [2021-03-26 08:38:41,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 214 transitions, 1255 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 08:38:41,317 INFO L241 Difference]: Finished difference. Result has 74 places, 164 transitions, 968 flow [2021-03-26 08:38:41,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=968, PETRI_PLACES=74, PETRI_TRANSITIONS=164} [2021-03-26 08:38:41,318 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2021-03-26 08:38:41,318 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:41,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-26 08:38:41,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-26 08:38:41,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 164 transitions, 968 flow [2021-03-26 08:38:41,707 INFO L129 PetriNetUnfolder]: 1728/5724 cut-off events. [2021-03-26 08:38:41,708 INFO L130 PetriNetUnfolder]: For 1399/1458 co-relation queries the response was YES. [2021-03-26 08:38:41,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10446 conditions, 5724 events. 1728/5724 cut-off events. For 1399/1458 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 67193 event pairs, 38 based on Foata normal form. 35/5437 useless extension candidates. Maximal degree in co-relation 9744. Up to 1030 conditions per place. [2021-03-26 08:38:41,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 4204 [2021-03-26 08:38:42,879 INFO L154 LiptonReduction]: Checked pairs total: 393 [2021-03-26 08:38:42,879 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 08:38:42,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1561 [2021-03-26 08:38:42,880 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 164 transitions, 968 flow [2021-03-26 08:38:42,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2021-03-26 08:38:42,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:42,881 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:42,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 08:38:42,881 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:42,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1785313366, now seen corresponding path program 1 times [2021-03-26 08:38:42,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:42,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969734664] [2021-03-26 08:38:42,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:42,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:42,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:42,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:42,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:42,934 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 08:38:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:38:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:42,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969734664] [2021-03-26 08:38:42,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:42,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:42,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789203877] [2021-03-26 08:38:42,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:38:42,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:42,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:38:42,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:38:42,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2021-03-26 08:38:42,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 164 transitions, 968 flow. Second operand has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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) [2021-03-26 08:38:42,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:42,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2021-03-26 08:38:42,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:43,217 INFO L129 PetriNetUnfolder]: 720/2308 cut-off events. [2021-03-26 08:38:43,217 INFO L130 PetriNetUnfolder]: For 942/999 co-relation queries the response was YES. [2021-03-26 08:38:43,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4656 conditions, 2308 events. 720/2308 cut-off events. For 942/999 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 22288 event pairs, 14 based on Foata normal form. 90/2298 useless extension candidates. Maximal degree in co-relation 4419. Up to 430 conditions per place. [2021-03-26 08:38:43,235 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 30 selfloop transitions, 19 changer transitions 4/142 dead transitions. [2021-03-26 08:38:43,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 142 transitions, 860 flow [2021-03-26 08:38:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 08:38:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 08:38:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 765 transitions. [2021-03-26 08:38:43,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8018867924528302 [2021-03-26 08:38:43,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 765 transitions. [2021-03-26 08:38:43,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 765 transitions. [2021-03-26 08:38:43,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:43,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 765 transitions. [2021-03-26 08:38:43,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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) [2021-03-26 08:38:43,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2021-03-26 08:38:43,244 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2021-03-26 08:38:43,244 INFO L185 Difference]: Start difference. First operand has 74 places, 164 transitions, 968 flow. Second operand 6 states and 765 transitions. [2021-03-26 08:38:43,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 142 transitions, 860 flow [2021-03-26 08:38:43,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 142 transitions, 840 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 08:38:43,257 INFO L241 Difference]: Finished difference. Result has 78 places, 122 transitions, 688 flow [2021-03-26 08:38:43,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=688, PETRI_PLACES=78, PETRI_TRANSITIONS=122} [2021-03-26 08:38:43,257 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2021-03-26 08:38:43,258 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:43,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 122 transitions, 688 flow [2021-03-26 08:38:43,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 122 transitions, 688 flow [2021-03-26 08:38:43,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 122 transitions, 688 flow [2021-03-26 08:38:43,357 INFO L129 PetriNetUnfolder]: 518/1846 cut-off events. [2021-03-26 08:38:43,357 INFO L130 PetriNetUnfolder]: For 490/533 co-relation queries the response was YES. [2021-03-26 08:38:43,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3466 conditions, 1846 events. 518/1846 cut-off events. For 490/533 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 17871 event pairs, 6 based on Foata normal form. 0/1763 useless extension candidates. Maximal degree in co-relation 3276. Up to 342 conditions per place. [2021-03-26 08:38:43,376 INFO L142 LiptonReduction]: Number of co-enabled transitions 2546 [2021-03-26 08:38:43,441 INFO L154 LiptonReduction]: Checked pairs total: 258 [2021-03-26 08:38:43,441 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 08:38:43,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-26 08:38:43,447 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 122 transitions, 688 flow [2021-03-26 08:38:43,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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) [2021-03-26 08:38:43,447 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:43,447 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:43,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 08:38:43,447 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:43,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:43,448 INFO L82 PathProgramCache]: Analyzing trace with hash -284489640, now seen corresponding path program 1 times [2021-03-26 08:38:43,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:43,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334262087] [2021-03-26 08:38:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:43,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:43,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:43,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:43,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:43,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:43,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:43,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334262087] [2021-03-26 08:38:43,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:43,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:43,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765037582] [2021-03-26 08:38:43,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:38:43,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:43,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:38:43,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:38:43,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-26 08:38:43,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 122 transitions, 688 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 08:38:43,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:43,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-26 08:38:43,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:43,910 INFO L129 PetriNetUnfolder]: 999/2999 cut-off events. [2021-03-26 08:38:43,910 INFO L130 PetriNetUnfolder]: For 1701/1749 co-relation queries the response was YES. [2021-03-26 08:38:43,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7001 conditions, 2999 events. 999/2999 cut-off events. For 1701/1749 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 28495 event pairs, 115 based on Foata normal form. 32/2896 useless extension candidates. Maximal degree in co-relation 6387. Up to 576 conditions per place. [2021-03-26 08:38:43,936 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 78 selfloop transitions, 49 changer transitions 0/164 dead transitions. [2021-03-26 08:38:43,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 164 transitions, 1149 flow [2021-03-26 08:38:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:38:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:38:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-26 08:38:43,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-26 08:38:43,943 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-26 08:38:43,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-26 08:38:43,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:43,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-26 08:38:43,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 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) [2021-03-26 08:38:43,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-26 08:38:43,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-26 08:38:43,950 INFO L185 Difference]: Start difference. First operand has 78 places, 122 transitions, 688 flow. Second operand 7 states and 899 transitions. [2021-03-26 08:38:43,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 164 transitions, 1149 flow [2021-03-26 08:38:43,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 164 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 08:38:43,962 INFO L241 Difference]: Finished difference. Result has 84 places, 133 transitions, 858 flow [2021-03-26 08:38:43,963 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=858, PETRI_PLACES=84, PETRI_TRANSITIONS=133} [2021-03-26 08:38:43,963 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2021-03-26 08:38:43,963 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:43,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 133 transitions, 858 flow [2021-03-26 08:38:43,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 133 transitions, 858 flow [2021-03-26 08:38:43,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 133 transitions, 858 flow [2021-03-26 08:38:44,079 INFO L129 PetriNetUnfolder]: 554/1925 cut-off events. [2021-03-26 08:38:44,079 INFO L130 PetriNetUnfolder]: For 704/736 co-relation queries the response was YES. [2021-03-26 08:38:44,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3626 conditions, 1925 events. 554/1925 cut-off events. For 704/736 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 18702 event pairs, 6 based on Foata normal form. 8/1847 useless extension candidates. Maximal degree in co-relation 3231. Up to 372 conditions per place. [2021-03-26 08:38:44,104 INFO L142 LiptonReduction]: Number of co-enabled transitions 2726 [2021-03-26 08:38:44,157 INFO L154 LiptonReduction]: Checked pairs total: 174 [2021-03-26 08:38:44,158 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 08:38:44,158 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-26 08:38:44,159 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 133 transitions, 858 flow [2021-03-26 08:38:44,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 08:38:44,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:44,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:44,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 08:38:44,159 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:44,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1543456506, now seen corresponding path program 1 times [2021-03-26 08:38:44,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:44,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103083138] [2021-03-26 08:38:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:44,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:44,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:44,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103083138] [2021-03-26 08:38:44,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:44,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:38:44,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926947393] [2021-03-26 08:38:44,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:38:44,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:44,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:38:44,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:38:44,213 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-26 08:38:44,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 133 transitions, 858 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 08:38:44,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:44,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-26 08:38:44,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:44,589 INFO L129 PetriNetUnfolder]: 992/3027 cut-off events. [2021-03-26 08:38:44,590 INFO L130 PetriNetUnfolder]: For 2249/2290 co-relation queries the response was YES. [2021-03-26 08:38:44,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7028 conditions, 3027 events. 992/3027 cut-off events. For 2249/2290 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 29357 event pairs, 62 based on Foata normal form. 41/2952 useless extension candidates. Maximal degree in co-relation 6414. Up to 533 conditions per place. [2021-03-26 08:38:44,635 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 87 selfloop transitions, 51 changer transitions 0/175 dead transitions. [2021-03-26 08:38:44,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 175 transitions, 1354 flow [2021-03-26 08:38:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:38:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:38:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-26 08:38:44,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-26 08:38:44,638 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-26 08:38:44,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-26 08:38:44,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:44,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-26 08:38:44,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 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) [2021-03-26 08:38:44,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-26 08:38:44,643 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-26 08:38:44,643 INFO L185 Difference]: Start difference. First operand has 84 places, 133 transitions, 858 flow. Second operand 7 states and 899 transitions. [2021-03-26 08:38:44,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 175 transitions, 1354 flow [2021-03-26 08:38:44,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 175 transitions, 1330 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 08:38:44,652 INFO L241 Difference]: Finished difference. Result has 91 places, 144 transitions, 1034 flow [2021-03-26 08:38:44,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1034, PETRI_PLACES=91, PETRI_TRANSITIONS=144} [2021-03-26 08:38:44,653 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2021-03-26 08:38:44,653 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:44,653 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 144 transitions, 1034 flow [2021-03-26 08:38:44,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 144 transitions, 1034 flow [2021-03-26 08:38:44,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 144 transitions, 1034 flow [2021-03-26 08:38:44,774 INFO L129 PetriNetUnfolder]: 597/2084 cut-off events. [2021-03-26 08:38:44,775 INFO L130 PetriNetUnfolder]: For 992/1045 co-relation queries the response was YES. [2021-03-26 08:38:44,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4054 conditions, 2084 events. 597/2084 cut-off events. For 992/1045 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 20693 event pairs, 2 based on Foata normal form. 12/2007 useless extension candidates. Maximal degree in co-relation 3850. Up to 414 conditions per place. [2021-03-26 08:38:44,797 INFO L142 LiptonReduction]: Number of co-enabled transitions 2906 [2021-03-26 08:38:44,884 INFO L154 LiptonReduction]: Checked pairs total: 310 [2021-03-26 08:38:44,884 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 08:38:44,884 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-26 08:38:44,886 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 144 transitions, 1034 flow [2021-03-26 08:38:44,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 08:38:44,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:44,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:44,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 08:38:44,886 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1685513430, now seen corresponding path program 1 times [2021-03-26 08:38:44,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:44,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140951416] [2021-03-26 08:38:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:38:44,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:38:44,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:38:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:38:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:38:44,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140951416] [2021-03-26 08:38:44,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:38:44,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 08:38:44,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970856043] [2021-03-26 08:38:44,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 08:38:44,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:38:44,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 08:38:44,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 08:38:44,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 159 [2021-03-26 08:38:44,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 144 transitions, 1034 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2021-03-26 08:38:44,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:38:44,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 159 [2021-03-26 08:38:44,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:38:45,284 INFO L129 PetriNetUnfolder]: 973/3353 cut-off events. [2021-03-26 08:38:45,284 INFO L130 PetriNetUnfolder]: For 2066/2099 co-relation queries the response was YES. [2021-03-26 08:38:45,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6694 conditions, 3353 events. 973/3353 cut-off events. For 2066/2099 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 36356 event pairs, 15 based on Foata normal form. 65/3277 useless extension candidates. Maximal degree in co-relation 6311. Up to 722 conditions per place. [2021-03-26 08:38:45,298 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 43 selfloop transitions, 15 changer transitions 24/175 dead transitions. [2021-03-26 08:38:45,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 1390 flow [2021-03-26 08:38:45,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 08:38:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 08:38:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1174 transitions. [2021-03-26 08:38:45,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8204053109713487 [2021-03-26 08:38:45,303 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1174 transitions. [2021-03-26 08:38:45,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1174 transitions. [2021-03-26 08:38:45,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:38:45,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1174 transitions. [2021-03-26 08:38:45,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.44444444444446) internal successors, (1174), 9 states have internal predecessors, (1174), 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) [2021-03-26 08:38:45,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-26 08:38:45,308 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-26 08:38:45,308 INFO L185 Difference]: Start difference. First operand has 91 places, 144 transitions, 1034 flow. Second operand 9 states and 1174 transitions. [2021-03-26 08:38:45,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 1390 flow [2021-03-26 08:38:45,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 175 transitions, 1360 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 08:38:45,320 INFO L241 Difference]: Finished difference. Result has 100 places, 134 transitions, 964 flow [2021-03-26 08:38:45,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=964, PETRI_PLACES=100, PETRI_TRANSITIONS=134} [2021-03-26 08:38:45,320 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 43 predicate places. [2021-03-26 08:38:45,320 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:38:45,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 134 transitions, 964 flow [2021-03-26 08:38:45,320 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 134 transitions, 964 flow [2021-03-26 08:38:45,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 134 transitions, 964 flow [2021-03-26 08:38:45,426 INFO L129 PetriNetUnfolder]: 501/1860 cut-off events. [2021-03-26 08:38:45,427 INFO L130 PetriNetUnfolder]: For 1127/1153 co-relation queries the response was YES. [2021-03-26 08:38:45,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3811 conditions, 1860 events. 501/1860 cut-off events. For 1127/1153 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 18328 event pairs, 2 based on Foata normal form. 8/1785 useless extension candidates. Maximal degree in co-relation 3554. Up to 366 conditions per place. [2021-03-26 08:38:45,443 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-26 08:38:45,501 INFO L154 LiptonReduction]: Checked pairs total: 202 [2021-03-26 08:38:45,501 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 08:38:45,502 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-26 08:38:45,502 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 134 transitions, 964 flow [2021-03-26 08:38:45,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2021-03-26 08:38:45,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:38:45,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:38:45,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 08:38:45,503 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 08:38:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:38:45,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1499299506, now seen corresponding path program 2 times [2021-03-26 08:38:45,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:38:45,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283250298] [2021-03-26 08:38:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:38:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 08:38:45,514 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 08:38:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 08:38:45,526 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 08:38:45,550 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 08:38:45,550 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 08:38:45,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 08:38:45,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 08:38:45 BasicIcfg [2021-03-26 08:38:45,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 08:38:45,619 INFO L168 Benchmark]: Toolchain (without parser) took 13606.09 ms. Allocated memory was 337.6 MB in the beginning and 792.7 MB in the end (delta: 455.1 MB). Free memory was 301.1 MB in the beginning and 319.1 MB in the end (delta: -18.0 MB). Peak memory consumption was 439.8 MB. Max. memory is 16.0 GB. [2021-03-26 08:38:45,619 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 337.6 MB. Free memory was 319.2 MB in the beginning and 319.2 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 08:38:45,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.54 ms. Allocated memory is still 337.6 MB. Free memory was 300.9 MB in the beginning and 300.8 MB in the end (delta: 129.3 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-26 08:38:45,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 337.6 MB. Free memory was 300.8 MB in the beginning and 298.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 08:38:45,620 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 337.6 MB. Free memory was 298.6 MB in the beginning and 297.7 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 08:38:45,620 INFO L168 Benchmark]: RCFGBuilder took 519.93 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 266.2 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-03-26 08:38:45,621 INFO L168 Benchmark]: TraceAbstraction took 12634.15 ms. Allocated memory was 337.6 MB in the beginning and 792.7 MB in the end (delta: 455.1 MB). Free memory was 265.1 MB in the beginning and 319.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 403.2 MB. Max. memory is 16.0 GB. [2021-03-26 08:38:45,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 337.6 MB. Free memory was 319.2 MB in the beginning and 319.2 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 396.54 ms. Allocated memory is still 337.6 MB. Free memory was 300.9 MB in the beginning and 300.8 MB in the end (delta: 129.3 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 337.6 MB. Free memory was 300.8 MB in the beginning and 298.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 337.6 MB. Free memory was 298.6 MB in the beginning and 297.7 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 519.93 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 266.2 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12634.15 ms. Allocated memory was 337.6 MB in the beginning and 792.7 MB in the end (delta: 455.1 MB). Free memory was 265.1 MB in the beginning and 319.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 403.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2054.4ms, 92 PlacesBefore, 57 PlacesAfterwards, 90 TransitionsBefore, 55 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4484 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2046, positive: 1960, positive conditional: 1960, positive unconditional: 0, negative: 86, negative conditional: 86, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2046, positive: 1960, positive conditional: 0, positive unconditional: 1960, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2046, positive: 1960, positive conditional: 0, positive unconditional: 1960, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1655, positive: 1620, positive conditional: 0, positive unconditional: 1620, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1655, positive: 1602, positive conditional: 0, positive unconditional: 1602, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 226, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 162, negative conditional: 0, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2046, positive: 340, positive conditional: 0, positive unconditional: 340, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1655, unknown conditional: 0, unknown unconditional: 1655] , Statistics on independence cache: Total cache size (in pairs): 1655, Positive cache size: 1620, Positive conditional cache size: 0, Positive unconditional cache size: 1620, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1547.0ms, 61 PlacesBefore, 57 PlacesAfterwards, 78 TransitionsBefore, 74 TransitionsAfterwards, 2066 CoEnabledTransitionPairs, 4 FixpointIterations, 4 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 7440 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2848, positive: 2692, positive conditional: 2692, positive unconditional: 0, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2848, positive: 2692, positive conditional: 256, positive unconditional: 2436, negative: 156, negative conditional: 76, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2848, positive: 2692, positive conditional: 256, positive unconditional: 2436, negative: 156, negative conditional: 76, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 166, positive: 152, positive conditional: 7, positive unconditional: 145, negative: 14, negative conditional: 9, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 166, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 14, negative conditional: 9, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 67, negative conditional: 39, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2848, positive: 2540, positive conditional: 249, positive unconditional: 2291, negative: 142, negative conditional: 67, negative unconditional: 75, unknown: 166, unknown conditional: 16, unknown unconditional: 150] , Statistics on independence cache: Total cache size (in pairs): 1821, Positive cache size: 1772, Positive conditional cache size: 7, Positive unconditional cache size: 1765, Negative cache size: 49, Negative conditional cache size: 9, Negative unconditional cache size: 40, Eliminated conditions: 596 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1754.7ms, 63 PlacesBefore, 62 PlacesAfterwards, 90 TransitionsBefore, 89 TransitionsAfterwards, 2536 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1788 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 376, positive: 340, positive conditional: 340, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 376, positive: 340, positive conditional: 92, positive unconditional: 248, negative: 36, negative conditional: 20, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 376, positive: 340, positive conditional: 92, positive unconditional: 248, negative: 36, negative conditional: 20, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 25, positive conditional: 11, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 376, positive: 315, positive conditional: 81, positive unconditional: 234, negative: 34, negative conditional: 20, negative unconditional: 14, unknown: 27, unknown conditional: 11, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 1848, Positive cache size: 1797, Positive conditional cache size: 18, Positive unconditional cache size: 1779, Negative cache size: 51, Negative conditional cache size: 9, Negative unconditional cache size: 42, Eliminated conditions: 80 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1561.0ms, 74 PlacesBefore, 74 PlacesAfterwards, 164 TransitionsBefore, 164 TransitionsAfterwards, 4204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 393 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, positive: 17, positive conditional: 5, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 17, positive conditional: 5, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 15, positive conditional: 5, positive unconditional: 10, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1850, Positive cache size: 1799, Positive conditional cache size: 18, Positive unconditional cache size: 1781, Negative cache size: 51, Negative conditional cache size: 9, Negative unconditional cache size: 42, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.3ms, 78 PlacesBefore, 78 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 258 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1850, Positive cache size: 1799, Positive conditional cache size: 18, Positive unconditional cache size: 1781, Negative cache size: 51, Negative conditional cache size: 9, Negative unconditional cache size: 42, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.3ms, 84 PlacesBefore, 84 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 2726 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 8, negative conditional: 6, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 8, negative conditional: 6, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1853, Positive cache size: 1799, Positive conditional cache size: 18, Positive unconditional cache size: 1781, Negative cache size: 54, Negative conditional cache size: 12, Negative unconditional cache size: 42, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.6ms, 91 PlacesBefore, 91 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 2906 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1857, Positive cache size: 1799, Positive conditional cache size: 18, Positive unconditional cache size: 1781, Negative cache size: 58, Negative conditional cache size: 16, Negative unconditional cache size: 42, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.0ms, 100 PlacesBefore, 96 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 202 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1859, Positive cache size: 1799, Positive conditional cache size: 18, Positive unconditional cache size: 1781, Negative cache size: 60, Negative conditional cache size: 18, Negative unconditional cache size: 42, Eliminated conditions: 0 - 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; [L748] 0 pthread_t t1, t2, t3, t4; [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; [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=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 2 !(!(ly == lx)) [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; [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=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l [L745] 2 return 0; [L714] CALL 3 __VERIFIER_atomic_take_write_lock() [L706] CALL 3 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 3 !(!cond) [L706] RET 3 assume_abort_if_not(w==0 && r==0) [L707] 3 w = 1 [L714] RET 3 __VERIFIER_atomic_take_write_lock() [L716] 3 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 12408.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3784.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2178.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 132 SDtfs, 216 SDslu, 91 SDs, 0 SdLazy, 581 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 496.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 279.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1034occurred in iteration=6, InterpolantAutomatonStates: 52, 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: TRACE_CHECK: 22.2ms SsaConstructionTime, 147.3ms SatisfiabilityAnalysisTime, 392.4ms InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...