/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-RepeatedSemanticLbe.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 [2021-03-25 13:02:37,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 13:02:37,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 13:02:37,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 13:02:37,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 13:02:37,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 13:02:37,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 13:02:37,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 13:02:37,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 13:02:37,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 13:02:37,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 13:02:37,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 13:02:37,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 13:02:37,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 13:02:37,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 13:02:37,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 13:02:37,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 13:02:37,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 13:02:37,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 13:02:37,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 13:02:37,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 13:02:37,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 13:02:37,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 13:02:37,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 13:02:37,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 13:02:37,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 13:02:37,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 13:02:37,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 13:02:37,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 13:02:37,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 13:02:37,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 13:02:37,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 13:02:37,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 13:02:37,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 13:02:37,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 13:02:37,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 13:02:37,769 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-RepeatedSemanticLbe.epf [2021-03-25 13:02:37,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 13:02:37,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 13:02:37,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 13:02:37,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 13:02:37,815 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 13:02:37,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 13:02:37,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 13:02:37,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 13:02:37,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 13:02:37,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 13:02:37,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 13:02:37,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 13:02:37,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 13:02:37,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 13:02:37,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 13:02:37,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 13:02:37,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 13:02:37,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 13:02:37,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 13:02:37,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 13:02:38,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 13:02:38,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 13:02:38,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 13:02:38,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 13:02:38,126 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 13:02:38,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-25 13:02:38,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c1d1b9c/57305cab718c409dbfb2f88f750a53cb/FLAG1135ee1b9 [2021-03-25 13:02:38,780 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 13:02:38,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-25 13:02:38,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c1d1b9c/57305cab718c409dbfb2f88f750a53cb/FLAG1135ee1b9 [2021-03-25 13:02:39,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c1d1b9c/57305cab718c409dbfb2f88f750a53cb [2021-03-25 13:02:39,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 13:02:39,203 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 13:02:39,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 13:02:39,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 13:02:39,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 13:02:39,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c2befc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39, skipping insertion in model container [2021-03-25 13:02:39,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 13:02:39,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 13:02:39,409 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:02:39,551 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] [2021-03-25 13:02:39,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:02:39,569 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 13:02:39,592 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:02:39,616 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] [2021-03-25 13:02:39,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:02:39,692 INFO L208 MainTranslator]: Completed translation [2021-03-25 13:02:39,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39 WrapperNode [2021-03-25 13:02:39,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 13:02:39,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 13:02:39,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 13:02:39,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 13:02:39,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 13:02:39,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 13:02:39,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 13:02:39,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 13:02:39,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (1/1) ... [2021-03-25 13:02:39,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 13:02:39,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 13:02:39,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 13:02:39,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 13:02:39,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (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 [2021-03-25 13:02:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 13:02:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 13:02:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 13:02:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-25 13:02:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-25 13:02:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 13:02:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 13:02:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 13:02:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 13:02:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 13:02:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 13:02:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-25 13:02:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-25 13:02:39,857 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 13:02:40,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 13:02:40,369 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 13:02:40,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:02:40 BoogieIcfgContainer [2021-03-25 13:02:40,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 13:02:40,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 13:02:40,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 13:02:40,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 13:02:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 01:02:39" (1/3) ... [2021-03-25 13:02:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7415b83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:02:40, skipping insertion in model container [2021-03-25 13:02:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:02:39" (2/3) ... [2021-03-25 13:02:40,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7415b83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:02:40, skipping insertion in model container [2021-03-25 13:02:40,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:02:40" (3/3) ... [2021-03-25 13:02:40,378 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-25 13:02:40,386 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 13:02:40,389 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 13:02:40,390 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 13:02:40,427 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,427 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,427 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,428 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,429 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,429 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,429 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,429 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,430 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,430 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,430 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,430 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,431 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,431 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,431 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,431 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,432 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,433 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,433 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,434 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,434 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,434 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,435 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,435 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,435 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,435 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,435 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,436 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,436 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,436 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,437 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,438 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,438 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,438 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,438 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,438 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,439 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,440 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,440 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,440 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,440 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,441 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,441 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,441 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,441 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,441 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,444 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,444 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,444 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,444 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,444 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,445 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,446 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,448 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,448 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,449 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,449 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,449 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,450 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,450 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,450 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,450 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,451 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,451 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,455 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,456 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,456 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,459 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,459 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,460 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,460 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,460 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,460 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,462 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,462 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,462 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,462 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,463 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,463 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,463 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,463 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,463 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,464 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,464 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,465 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,465 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,465 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,465 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,466 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,466 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,466 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,467 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:02:40,479 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-25 13:02:40,495 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 13:02:40,512 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 13:02:40,512 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 13:02:40,513 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 13:02:40,513 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 13:02:40,513 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 13:02:40,513 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 13:02:40,513 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 13:02:40,513 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 13:02:40,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 13:02:40,571 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-25 13:02:40,571 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 13:02:40,579 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. [2021-03-25 13:02:40,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 13:02:40,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-25 13:02:40,584 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:40,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 13:02:40,597 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 13:02:40,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-25 13:02:40,621 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-25 13:02:40,622 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-25 13:02:40,623 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. [2021-03-25 13:02:40,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-25 13:02:42,066 INFO L154 LiptonReduction]: Checked pairs total: 4484 [2021-03-25 13:02:42,067 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 13:02:42,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1485 [2021-03-25 13:02:42,084 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 13:02:42,084 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:02:42,085 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:42,085 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:42,085 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]=== [2021-03-25 13:02:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:42,091 INFO L82 PathProgramCache]: Analyzing trace with hash -434817972, now seen corresponding path program 1 times [2021-03-25 13:02:42,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:42,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081188313] [2021-03-25 13:02:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:42,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:42,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:42,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:42,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:42,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081188313] [2021-03-25 13:02:42,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:42,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:42,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856183914] [2021-03-25 13:02:42,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 13:02:42,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:42,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 13:02:42,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 13:02:42,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-25 13:02:42,307 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) [2021-03-25 13:02:42,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:42,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-25 13:02:42,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:42,767 INFO L129 PetriNetUnfolder]: 1159/2475 cut-off events. [2021-03-25 13:02:42,767 INFO L130 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2021-03-25 13:02:42,778 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. [2021-03-25 13:02:42,793 INFO L132 encePairwiseOnDemand]: 142/154 looper letters, 58 selfloop transitions, 26 changer transitions 0/118 dead transitions. [2021-03-25 13:02:42,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 455 flow [2021-03-25 13:02:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 13:02:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 13:02:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-25 13:02:42,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-25 13:02:42,808 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-25 13:02:42,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-25 13:02:42,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:42,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-25 13:02:42,818 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) [2021-03-25 13:02:42,825 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) [2021-03-25 13:02:42,826 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) [2021-03-25 13:02:42,828 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 158 flow. Second operand 9 states and 1168 transitions. [2021-03-25 13:02:42,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 455 flow [2021-03-25 13:02:42,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 118 transitions, 421 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-25 13:02:42,842 INFO L241 Difference]: Finished difference. Result has 61 places, 78 transitions, 267 flow [2021-03-25 13:02:42,843 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} [2021-03-25 13:02:42,844 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-25 13:02:42,844 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:42,845 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 13:02:42,845 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 13:02:42,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 78 transitions, 267 flow [2021-03-25 13:02:42,887 INFO L129 PetriNetUnfolder]: 178/662 cut-off events. [2021-03-25 13:02:42,887 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-03-25 13:02:42,890 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. [2021-03-25 13:02:42,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 2066 [2021-03-25 13:02:43,390 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-25 13:02:43,590 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-25 13:02:44,045 INFO L154 LiptonReduction]: Checked pairs total: 7440 [2021-03-25 13:02:44,046 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 13:02:44,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1202 [2021-03-25 13:02:44,047 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 74 transitions, 259 flow [2021-03-25 13:02:44,048 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) [2021-03-25 13:02:44,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:44,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:44,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 13:02:44,048 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]=== [2021-03-25 13:02:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1245912937, now seen corresponding path program 1 times [2021-03-25 13:02:44,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:44,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976634166] [2021-03-25 13:02:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:44,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:44,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:44,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:44,140 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 13:02:44,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 13:02:44,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:44,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:44,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976634166] [2021-03-25 13:02:44,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:44,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:44,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667670021] [2021-03-25 13:02:44,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:02:44,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:44,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:02:44,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:02:44,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 158 [2021-03-25 13:02:44,160 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) [2021-03-25 13:02:44,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:44,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 158 [2021-03-25 13:02:44,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:44,566 INFO L129 PetriNetUnfolder]: 1194/3581 cut-off events. [2021-03-25 13:02:44,566 INFO L130 PetriNetUnfolder]: For 281/323 co-relation queries the response was YES. [2021-03-25 13:02:44,584 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. [2021-03-25 13:02:44,602 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 28 selfloop transitions, 19 changer transitions 0/107 dead transitions. [2021-03-25 13:02:44,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 452 flow [2021-03-25 13:02:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:02:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:02:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 651 transitions. [2021-03-25 13:02:44,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8240506329113924 [2021-03-25 13:02:44,604 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 651 transitions. [2021-03-25 13:02:44,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 651 transitions. [2021-03-25 13:02:44,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:44,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 651 transitions. [2021-03-25 13:02:44,606 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) [2021-03-25 13:02:44,607 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) [2021-03-25 13:02:44,608 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) [2021-03-25 13:02:44,608 INFO L185 Difference]: Start difference. First operand has 57 places, 74 transitions, 259 flow. Second operand 5 states and 651 transitions. [2021-03-25 13:02:44,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 452 flow [2021-03-25 13:02:44,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 107 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 13:02:44,616 INFO L241 Difference]: Finished difference. Result has 63 places, 90 transitions, 363 flow [2021-03-25 13:02:44,616 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} [2021-03-25 13:02:44,617 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2021-03-25 13:02:44,617 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:44,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-25 13:02:44,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-25 13:02:44,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 90 transitions, 363 flow [2021-03-25 13:02:44,796 INFO L129 PetriNetUnfolder]: 726/2545 cut-off events. [2021-03-25 13:02:44,796 INFO L130 PetriNetUnfolder]: For 254/259 co-relation queries the response was YES. [2021-03-25 13:02:44,808 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. [2021-03-25 13:02:44,831 INFO L142 LiptonReduction]: Number of co-enabled transitions 2536 [2021-03-25 13:02:45,456 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 13:02:45,579 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 13:02:45,854 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 13:02:45,992 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 13:02:46,235 INFO L154 LiptonReduction]: Checked pairs total: 1788 [2021-03-25 13:02:46,235 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 13:02:46,236 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1619 [2021-03-25 13:02:46,237 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 89 transitions, 361 flow [2021-03-25 13:02:46,237 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) [2021-03-25 13:02:46,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:46,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:46,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 13:02:46,237 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]=== [2021-03-25 13:02:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:46,238 INFO L82 PathProgramCache]: Analyzing trace with hash 905083927, now seen corresponding path program 1 times [2021-03-25 13:02:46,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:46,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078698499] [2021-03-25 13:02:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:46,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:46,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:46,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:46,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:46,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:46,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:46,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:46,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:46,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078698499] [2021-03-25 13:02:46,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:46,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:46,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822873665] [2021-03-25 13:02:46,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 13:02:46,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:46,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 13:02:46,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 13:02:46,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2021-03-25 13:02:46,293 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) [2021-03-25 13:02:46,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:46,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2021-03-25 13:02:46,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:47,363 INFO L129 PetriNetUnfolder]: 4240/10672 cut-off events. [2021-03-25 13:02:47,363 INFO L130 PetriNetUnfolder]: For 3856/3940 co-relation queries the response was YES. [2021-03-25 13:02:47,425 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. [2021-03-25 13:02:47,488 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 94 selfloop transitions, 77 changer transitions 0/214 dead transitions. [2021-03-25 13:02:47,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 214 transitions, 1255 flow [2021-03-25 13:02:47,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 13:02:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 13:02:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-25 13:02:47,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8162124388539483 [2021-03-25 13:02:47,492 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-25 13:02:47,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-25 13:02:47,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:47,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-25 13:02:47,495 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) [2021-03-25 13:02:47,497 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) [2021-03-25 13:02:47,498 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) [2021-03-25 13:02:47,498 INFO L185 Difference]: Start difference. First operand has 62 places, 89 transitions, 361 flow. Second operand 9 states and 1168 transitions. [2021-03-25 13:02:47,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 214 transitions, 1255 flow [2021-03-25 13:02:47,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 214 transitions, 1255 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 13:02:47,614 INFO L241 Difference]: Finished difference. Result has 74 places, 164 transitions, 968 flow [2021-03-25 13:02:47,614 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} [2021-03-25 13:02:47,616 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2021-03-25 13:02:47,616 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:47,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-25 13:02:47,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-25 13:02:47,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 164 transitions, 968 flow [2021-03-25 13:02:48,122 INFO L129 PetriNetUnfolder]: 1728/5724 cut-off events. [2021-03-25 13:02:48,122 INFO L130 PetriNetUnfolder]: For 1399/1458 co-relation queries the response was YES. [2021-03-25 13:02:48,152 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. [2021-03-25 13:02:48,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 4204 [2021-03-25 13:02:49,351 INFO L154 LiptonReduction]: Checked pairs total: 393 [2021-03-25 13:02:49,351 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:49,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1735 [2021-03-25 13:02:49,352 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 164 transitions, 968 flow [2021-03-25 13:02:49,353 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) [2021-03-25 13:02:49,353 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:49,353 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:49,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 13:02:49,353 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]=== [2021-03-25 13:02:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:49,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1785313366, now seen corresponding path program 1 times [2021-03-25 13:02:49,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:49,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972862917] [2021-03-25 13:02:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:49,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:49,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:49,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:49,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:49,415 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 13:02:49,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 13:02:49,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:49,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:49,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972862917] [2021-03-25 13:02:49,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:49,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:49,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380129776] [2021-03-25 13:02:49,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 13:02:49,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:49,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 13:02:49,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 13:02:49,425 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2021-03-25 13:02:49,426 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) [2021-03-25 13:02:49,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:49,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2021-03-25 13:02:49,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:49,681 INFO L129 PetriNetUnfolder]: 720/2308 cut-off events. [2021-03-25 13:02:49,681 INFO L130 PetriNetUnfolder]: For 942/999 co-relation queries the response was YES. [2021-03-25 13:02:49,692 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. [2021-03-25 13:02:49,702 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 30 selfloop transitions, 19 changer transitions 4/142 dead transitions. [2021-03-25 13:02:49,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 142 transitions, 860 flow [2021-03-25 13:02:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 13:02:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 13:02:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 765 transitions. [2021-03-25 13:02:49,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8018867924528302 [2021-03-25 13:02:49,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 765 transitions. [2021-03-25 13:02:49,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 765 transitions. [2021-03-25 13:02:49,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:49,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 765 transitions. [2021-03-25 13:02:49,708 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) [2021-03-25 13:02:49,711 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) [2021-03-25 13:02:49,711 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) [2021-03-25 13:02:49,711 INFO L185 Difference]: Start difference. First operand has 74 places, 164 transitions, 968 flow. Second operand 6 states and 765 transitions. [2021-03-25 13:02:49,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 142 transitions, 860 flow [2021-03-25 13:02:49,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 142 transitions, 840 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 13:02:49,720 INFO L241 Difference]: Finished difference. Result has 78 places, 122 transitions, 688 flow [2021-03-25 13:02:49,721 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} [2021-03-25 13:02:49,721 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2021-03-25 13:02:49,721 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:49,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 122 transitions, 688 flow [2021-03-25 13:02:49,721 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 122 transitions, 688 flow [2021-03-25 13:02:49,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 122 transitions, 688 flow [2021-03-25 13:02:49,837 INFO L129 PetriNetUnfolder]: 518/1846 cut-off events. [2021-03-25 13:02:49,838 INFO L130 PetriNetUnfolder]: For 490/533 co-relation queries the response was YES. [2021-03-25 13:02:49,847 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. [2021-03-25 13:02:49,862 INFO L142 LiptonReduction]: Number of co-enabled transitions 2546 [2021-03-25 13:02:49,925 INFO L154 LiptonReduction]: Checked pairs total: 258 [2021-03-25 13:02:49,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:49,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 204 [2021-03-25 13:02:49,929 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 122 transitions, 688 flow [2021-03-25 13:02:49,929 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) [2021-03-25 13:02:49,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:49,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:49,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 13:02:49,930 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]=== [2021-03-25 13:02:49,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:49,930 INFO L82 PathProgramCache]: Analyzing trace with hash -284489640, now seen corresponding path program 1 times [2021-03-25 13:02:49,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:49,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662460323] [2021-03-25 13:02:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:50,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:50,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:50,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662460323] [2021-03-25 13:02:50,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:50,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:50,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281773276] [2021-03-25 13:02:50,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 13:02:50,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:50,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 13:02:50,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 13:02:50,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-25 13:02:50,024 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) [2021-03-25 13:02:50,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:50,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-25 13:02:50,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:50,410 INFO L129 PetriNetUnfolder]: 999/2999 cut-off events. [2021-03-25 13:02:50,410 INFO L130 PetriNetUnfolder]: For 1701/1749 co-relation queries the response was YES. [2021-03-25 13:02:50,427 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. [2021-03-25 13:02:50,439 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 78 selfloop transitions, 49 changer transitions 0/164 dead transitions. [2021-03-25 13:02:50,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 164 transitions, 1149 flow [2021-03-25 13:02:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 13:02:50,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 13:02:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-25 13:02:50,443 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-25 13:02:50,443 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-25 13:02:50,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-25 13:02:50,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:50,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-25 13:02:50,446 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) [2021-03-25 13:02:50,448 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) [2021-03-25 13:02:50,448 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) [2021-03-25 13:02:50,449 INFO L185 Difference]: Start difference. First operand has 78 places, 122 transitions, 688 flow. Second operand 7 states and 899 transitions. [2021-03-25 13:02:50,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 164 transitions, 1149 flow [2021-03-25 13:02:50,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 164 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 13:02:50,462 INFO L241 Difference]: Finished difference. Result has 84 places, 133 transitions, 858 flow [2021-03-25 13:02:50,463 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} [2021-03-25 13:02:50,463 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2021-03-25 13:02:50,463 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:50,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 133 transitions, 858 flow [2021-03-25 13:02:50,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 133 transitions, 858 flow [2021-03-25 13:02:50,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 133 transitions, 858 flow [2021-03-25 13:02:50,580 INFO L129 PetriNetUnfolder]: 554/1925 cut-off events. [2021-03-25 13:02:50,580 INFO L130 PetriNetUnfolder]: For 704/736 co-relation queries the response was YES. [2021-03-25 13:02:50,589 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. [2021-03-25 13:02:50,605 INFO L142 LiptonReduction]: Number of co-enabled transitions 2726 [2021-03-25 13:02:50,654 INFO L154 LiptonReduction]: Checked pairs total: 174 [2021-03-25 13:02:50,654 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:50,654 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 13:02:50,655 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 133 transitions, 858 flow [2021-03-25 13:02:50,655 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) [2021-03-25 13:02:50,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:50,655 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:02:50,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 13:02:50,656 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]=== [2021-03-25 13:02:50,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:50,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1543456506, now seen corresponding path program 1 times [2021-03-25 13:02:50,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:50,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385666079] [2021-03-25 13:02:50,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:50,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:50,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:50,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 13:02:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:50,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385666079] [2021-03-25 13:02:50,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:50,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:02:50,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14402643] [2021-03-25 13:02:50,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 13:02:50,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:50,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 13:02:50,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 13:02:50,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-25 13:02:50,735 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) [2021-03-25 13:02:50,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:50,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-25 13:02:50,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:51,090 INFO L129 PetriNetUnfolder]: 992/3027 cut-off events. [2021-03-25 13:02:51,090 INFO L130 PetriNetUnfolder]: For 2249/2290 co-relation queries the response was YES. [2021-03-25 13:02:51,108 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. [2021-03-25 13:02:51,117 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 87 selfloop transitions, 51 changer transitions 0/175 dead transitions. [2021-03-25 13:02:51,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 175 transitions, 1354 flow [2021-03-25 13:02:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 13:02:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 13:02:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-25 13:02:51,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-25 13:02:51,119 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-25 13:02:51,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-25 13:02:51,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:51,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-25 13:02:51,122 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) [2021-03-25 13:02:51,123 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) [2021-03-25 13:02:51,124 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) [2021-03-25 13:02:51,124 INFO L185 Difference]: Start difference. First operand has 84 places, 133 transitions, 858 flow. Second operand 7 states and 899 transitions. [2021-03-25 13:02:51,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 175 transitions, 1354 flow [2021-03-25 13:02:51,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 175 transitions, 1330 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 13:02:51,134 INFO L241 Difference]: Finished difference. Result has 91 places, 144 transitions, 1034 flow [2021-03-25 13:02:51,135 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} [2021-03-25 13:02:51,135 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2021-03-25 13:02:51,135 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:51,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 144 transitions, 1034 flow [2021-03-25 13:02:51,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 144 transitions, 1034 flow [2021-03-25 13:02:51,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 144 transitions, 1034 flow [2021-03-25 13:02:51,263 INFO L129 PetriNetUnfolder]: 597/2084 cut-off events. [2021-03-25 13:02:51,263 INFO L130 PetriNetUnfolder]: For 992/1045 co-relation queries the response was YES. [2021-03-25 13:02:51,272 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. [2021-03-25 13:02:51,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 2906 [2021-03-25 13:02:51,356 INFO L154 LiptonReduction]: Checked pairs total: 310 [2021-03-25 13:02:51,356 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:51,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 221 [2021-03-25 13:02:51,357 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 144 transitions, 1034 flow [2021-03-25 13:02:51,357 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) [2021-03-25 13:02:51,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:51,357 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] [2021-03-25 13:02:51,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 13:02:51,358 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]=== [2021-03-25 13:02:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:51,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1685513430, now seen corresponding path program 1 times [2021-03-25 13:02:51,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:51,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689705857] [2021-03-25 13:02:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:02:51,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:51,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:51,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:51,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:51,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:51,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:02:51,422 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 13:02:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 13:02:51,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:02:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:02:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:02:51,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689705857] [2021-03-25 13:02:51,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:02:51,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 13:02:51,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659046792] [2021-03-25 13:02:51,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 13:02:51,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:02:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 13:02:51,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 13:02:51,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 159 [2021-03-25 13:02:51,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 144 transitions, 1034 flow. Second operand has 7 states, 7 states have (on average 118.28571428571429) internal successors, (828), 7 states have internal predecessors, (828), 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) [2021-03-25 13:02:51,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:02:51,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 159 [2021-03-25 13:02:51,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:02:51,820 INFO L129 PetriNetUnfolder]: 1025/3483 cut-off events. [2021-03-25 13:02:51,820 INFO L130 PetriNetUnfolder]: For 2202/2245 co-relation queries the response was YES. [2021-03-25 13:02:51,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7016 conditions, 3483 events. 1025/3483 cut-off events. For 2202/2245 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 37994 event pairs, 15 based on Foata normal form. 74/3408 useless extension candidates. Maximal degree in co-relation 6586. Up to 754 conditions per place. [2021-03-25 13:02:51,845 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 49 selfloop transitions, 21 changer transitions 28/187 dead transitions. [2021-03-25 13:02:51,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 187 transitions, 1490 flow [2021-03-25 13:02:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 13:02:51,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 13:02:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1469 transitions. [2021-03-25 13:02:51,849 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.769916142557652 [2021-03-25 13:02:51,849 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1469 transitions. [2021-03-25 13:02:51,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1469 transitions. [2021-03-25 13:02:51,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:02:51,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1469 transitions. [2021-03-25 13:02:51,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.41666666666667) internal successors, (1469), 12 states have internal predecessors, (1469), 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) [2021-03-25 13:02:51,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 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) [2021-03-25 13:02:51,857 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 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) [2021-03-25 13:02:51,857 INFO L185 Difference]: Start difference. First operand has 91 places, 144 transitions, 1034 flow. Second operand 12 states and 1469 transitions. [2021-03-25 13:02:51,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 187 transitions, 1490 flow [2021-03-25 13:02:51,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 187 transitions, 1458 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 13:02:51,870 INFO L241 Difference]: Finished difference. Result has 103 places, 134 transitions, 976 flow [2021-03-25 13:02:51,870 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=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=976, PETRI_PLACES=103, PETRI_TRANSITIONS=134} [2021-03-25 13:02:51,870 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 46 predicate places. [2021-03-25 13:02:51,870 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:02:51,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 134 transitions, 976 flow [2021-03-25 13:02:51,871 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 134 transitions, 976 flow [2021-03-25 13:02:51,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 134 transitions, 976 flow [2021-03-25 13:02:51,993 INFO L129 PetriNetUnfolder]: 501/1864 cut-off events. [2021-03-25 13:02:51,994 INFO L130 PetriNetUnfolder]: For 1145/1184 co-relation queries the response was YES. [2021-03-25 13:02:52,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3909 conditions, 1864 events. 501/1864 cut-off events. For 1145/1184 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 18343 event pairs, 2 based on Foata normal form. 8/1783 useless extension candidates. Maximal degree in co-relation 3652. Up to 366 conditions per place. [2021-03-25 13:02:52,018 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-25 13:02:52,078 INFO L154 LiptonReduction]: Checked pairs total: 202 [2021-03-25 13:02:52,078 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:02:52,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-03-25 13:02:52,079 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 134 transitions, 976 flow [2021-03-25 13:02:52,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 118.28571428571429) internal successors, (828), 7 states have internal predecessors, (828), 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) [2021-03-25 13:02:52,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:02:52,079 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] [2021-03-25 13:02:52,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 13:02:52,080 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]=== [2021-03-25 13:02:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:02:52,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1499299506, now seen corresponding path program 2 times [2021-03-25 13:02:52,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:02:52,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418461849] [2021-03-25 13:02:52,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:02:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 13:02:52,095 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 13:02:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 13:02:52,112 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 13:02:52,140 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 13:02:52,140 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 13:02:52,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 13:02:52,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 01:02:52 BasicIcfg [2021-03-25 13:02:52,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 13:02:52,214 INFO L168 Benchmark]: Toolchain (without parser) took 13011.31 ms. Allocated memory was 255.9 MB in the beginning and 694.2 MB in the end (delta: 438.3 MB). Free memory was 233.8 MB in the beginning and 543.6 MB in the end (delta: -309.8 MB). Peak memory consumption was 128.5 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,214 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:02:52,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.50 ms. Allocated memory was 255.9 MB in the beginning and 440.4 MB in the end (delta: 184.5 MB). Free memory was 233.2 MB in the beginning and 402.7 MB in the end (delta: -169.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.18 ms. Allocated memory is still 440.4 MB. Free memory was 402.7 MB in the beginning and 400.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,215 INFO L168 Benchmark]: Boogie Preprocessor took 30.55 ms. Allocated memory is still 440.4 MB. Free memory was 400.4 MB in the beginning and 399.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,215 INFO L168 Benchmark]: RCFGBuilder took 581.83 ms. Allocated memory is still 440.4 MB. Free memory was 399.0 MB in the beginning and 407.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,216 INFO L168 Benchmark]: TraceAbstraction took 11840.67 ms. Allocated memory was 440.4 MB in the beginning and 694.2 MB in the end (delta: 253.8 MB). Free memory was 407.0 MB in the beginning and 543.6 MB in the end (delta: -136.6 MB). Peak memory consumption was 117.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:02:52,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 486.50 ms. Allocated memory was 255.9 MB in the beginning and 440.4 MB in the end (delta: 184.5 MB). Free memory was 233.2 MB in the beginning and 402.7 MB in the end (delta: -169.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.18 ms. Allocated memory is still 440.4 MB. Free memory was 402.7 MB in the beginning and 400.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.55 ms. Allocated memory is still 440.4 MB. Free memory was 400.4 MB in the beginning and 399.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 581.83 ms. Allocated memory is still 440.4 MB. Free memory was 399.0 MB in the beginning and 407.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11840.67 ms. Allocated memory was 440.4 MB in the beginning and 694.2 MB in the end (delta: 253.8 MB). Free memory was 407.0 MB in the beginning and 543.6 MB in the end (delta: -136.6 MB). Peak memory consumption was 117.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1469.5ms, 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: 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: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1610, positive: 1575, positive conditional: 0, positive unconditional: 1575, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1610, positive: 1575, positive conditional: 0, positive unconditional: 1575, 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: 1610, positive: 1558, positive conditional: 0, positive unconditional: 1558, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2046, positive: 385, positive conditional: 0, positive unconditional: 385, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1610, unknown conditional: 0, unknown unconditional: 1610] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 219, Positive conditional cache size: 0, Positive unconditional cache size: 219, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1200.9ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 2848, positive: 2692, positive conditional: 0, positive unconditional: 2692, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 103, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 103, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 103, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2848, positive: 2596, positive conditional: 0, positive unconditional: 2596, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 103, unknown conditional: 0, unknown unconditional: 103] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 315, Positive conditional cache size: 0, Positive unconditional cache size: 315, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1617.2ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 376, positive: 340, positive conditional: 0, positive unconditional: 340, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 23, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 319, positive conditional: 0, positive unconditional: 319, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , Statistics on independence cache: Total cache size (in pairs): 364, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1734.3ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 0, positive unconditional: 15, 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): 366, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 203.7ms, 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: 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: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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): 366, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 190.7ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 14, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 367, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 220.7ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 367, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.2ms, 103 PlacesBefore, 98 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: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 367, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - 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: 9.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 11632.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3911.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1561.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 139 SDtfs, 235 SDslu, 107 SDs, 0 SdLazy, 600 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 385.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 267.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1034occurred in iteration=6, InterpolantAutomatonStates: 55, 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: 18.6ms SsaConstructionTime, 144.1ms SatisfiabilityAnalysisTime, 400.9ms InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 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...