/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-VariableLbe.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 [2021-03-24 09:45:28,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 09:45:28,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 09:45:28,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 09:45:28,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 09:45:28,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 09:45:28,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 09:45:28,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 09:45:28,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 09:45:28,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 09:45:28,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 09:45:28,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 09:45:28,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 09:45:28,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 09:45:28,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 09:45:28,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 09:45:28,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 09:45:28,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 09:45:28,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 09:45:28,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 09:45:28,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 09:45:28,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 09:45:28,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 09:45:28,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 09:45:28,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 09:45:28,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 09:45:28,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 09:45:28,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 09:45:28,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 09:45:28,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 09:45:28,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 09:45:28,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 09:45:28,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 09:45:28,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 09:45:28,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 09:45:28,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 09:45:28,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 09:45:28,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 09:45:28,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 09:45:28,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 09:45:28,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 09:45:28,683 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-VariableLbe.epf [2021-03-24 09:45:28,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 09:45:28,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 09:45:28,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 09:45:28,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 09:45:28,719 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 09:45:28,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 09:45:28,720 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 09:45:28,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 09:45:28,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 09:45:28,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 09:45:28,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 09:45:28,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 09:45:28,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 09:45:28,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 09:45:28,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 09:45:28,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 09:45:28,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 09:45:28,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 09:45:28,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 09:45:28,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 09:45:28,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 09:45:28,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 09:45:28,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 09:45:28,994 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 09:45:28,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-24 09:45:29,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c931b437e/cab2bed0e8ea40f9a144d77f6ffca94a/FLAGac5f8198a [2021-03-24 09:45:29,447 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 09:45:29,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-24 09:45:29,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c931b437e/cab2bed0e8ea40f9a144d77f6ffca94a/FLAGac5f8198a [2021-03-24 09:45:29,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c931b437e/cab2bed0e8ea40f9a144d77f6ffca94a [2021-03-24 09:45:29,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 09:45:29,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 09:45:29,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 09:45:29,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 09:45:29,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 09:45:29,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:45:29" (1/1) ... [2021-03-24 09:45:29,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6858ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:29, skipping insertion in model container [2021-03-24 09:45:29,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:45:29" (1/1) ... [2021-03-24 09:45:29,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 09:45:29,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 09:45:29,935 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 09:45:30,034 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] [2021-03-24 09:45:30,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 09:45:30,074 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 09:45:30,095 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 09:45:30,120 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] [2021-03-24 09:45:30,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 09:45:30,165 INFO L208 MainTranslator]: Completed translation [2021-03-24 09:45:30,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30 WrapperNode [2021-03-24 09:45:30,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 09:45:30,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 09:45:30,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 09:45:30,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 09:45:30,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 09:45:30,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 09:45:30,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 09:45:30,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 09:45:30,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (1/1) ... [2021-03-24 09:45:30,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 09:45:30,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 09:45:30,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 09:45:30,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 09:45:30,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (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 [2021-03-24 09:45:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 09:45:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 09:45:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 09:45:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-24 09:45:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 09:45:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 09:45:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-24 09:45:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-24 09:45:30,280 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 09:45:30,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 09:45:30,591 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-24 09:45:30,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:45:30 BoogieIcfgContainer [2021-03-24 09:45:30,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 09:45:30,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 09:45:30,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 09:45:30,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 09:45:30,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 09:45:29" (1/3) ... [2021-03-24 09:45:30,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109ce0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:45:30, skipping insertion in model container [2021-03-24 09:45:30,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:45:30" (2/3) ... [2021-03-24 09:45:30,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109ce0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:45:30, skipping insertion in model container [2021-03-24 09:45:30,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:45:30" (3/3) ... [2021-03-24 09:45:30,597 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-24 09:45:30,600 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 09:45:30,603 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 09:45:30,603 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 09:45:30,622 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,623 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,624 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,625 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,626 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,627 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,647 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,650 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,651 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,655 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,655 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,656 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,657 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,658 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,659 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,659 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:45:30,670 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-24 09:45:30,682 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 09:45:30,693 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 09:45:30,694 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 09:45:30,694 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 09:45:30,694 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 09:45:30,694 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 09:45:30,694 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 09:45:30,694 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 09:45:30,694 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 09:45:30,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-24 09:45:30,730 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-24 09:45:30,731 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-24 09:45:30,736 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. [2021-03-24 09:45:30,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-24 09:45:30,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-24 09:45:30,740 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 09:45:30,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-24 09:45:30,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-24 09:45:30,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-24 09:45:30,762 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-24 09:45:30,762 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-24 09:45:30,763 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. [2021-03-24 09:45:30,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-24 09:45:31,842 INFO L154 LiptonReduction]: Checked pairs total: 4515 [2021-03-24 09:45:31,843 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-24 09:45:31,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1105 [2021-03-24 09:45:31,850 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-24 09:45:31,850 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 09:45:31,850 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:31,851 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:45:31,851 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]=== [2021-03-24 09:45:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:31,854 INFO L82 PathProgramCache]: Analyzing trace with hash -434817972, now seen corresponding path program 1 times [2021-03-24 09:45:31,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:31,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718841018] [2021-03-24 09:45:31,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:31,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:31,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:31,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:31,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:31,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:31,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:31,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:31,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:31,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718841018] [2021-03-24 09:45:31,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:31,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:45:31,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437931841] [2021-03-24 09:45:31,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 09:45:31,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:32,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 09:45:32,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 09:45:32,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-24 09:45:32,011 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) [2021-03-24 09:45:32,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:32,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-24 09:45:32,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:32,290 INFO L129 PetriNetUnfolder]: 1159/2475 cut-off events. [2021-03-24 09:45:32,290 INFO L130 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2021-03-24 09:45:32,297 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. [2021-03-24 09:45:32,307 INFO L132 encePairwiseOnDemand]: 142/154 looper letters, 58 selfloop transitions, 26 changer transitions 0/118 dead transitions. [2021-03-24 09:45:32,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 455 flow [2021-03-24 09:45:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 09:45:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 09:45:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-24 09:45:32,318 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-24 09:45:32,319 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-24 09:45:32,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-24 09:45:32,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:32,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-24 09:45:32,325 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) [2021-03-24 09:45:32,330 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) [2021-03-24 09:45:32,331 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) [2021-03-24 09:45:32,332 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 158 flow. Second operand 9 states and 1168 transitions. [2021-03-24 09:45:32,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 455 flow [2021-03-24 09:45:32,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 118 transitions, 421 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-24 09:45:32,343 INFO L241 Difference]: Finished difference. Result has 61 places, 78 transitions, 267 flow [2021-03-24 09:45:32,344 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} [2021-03-24 09:45:32,345 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-24 09:45:32,345 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 78 transitions, 267 flow [2021-03-24 09:45:32,345 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) [2021-03-24 09:45:32,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:32,345 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:45:32,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 09:45:32,346 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]=== [2021-03-24 09:45:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:32,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1245912937, now seen corresponding path program 1 times [2021-03-24 09:45:32,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:32,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59386524] [2021-03-24 09:45:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:32,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:32,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:32,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59386524] [2021-03-24 09:45:32,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:32,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:45:32,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016468743] [2021-03-24 09:45:32,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:45:32,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:32,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:45:32,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:45:32,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 154 [2021-03-24 09:45:32,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 78 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 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) [2021-03-24 09:45:32,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:32,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 154 [2021-03-24 09:45:32,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:32,627 INFO L129 PetriNetUnfolder]: 886/2940 cut-off events. [2021-03-24 09:45:32,627 INFO L130 PetriNetUnfolder]: For 265/333 co-relation queries the response was YES. [2021-03-24 09:45:32,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4776 conditions, 2940 events. 886/2940 cut-off events. For 265/333 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 30136 event pairs, 56 based on Foata normal form. 125/2807 useless extension candidates. Maximal degree in co-relation 4227. Up to 396 conditions per place. [2021-03-24 09:45:32,644 INFO L132 encePairwiseOnDemand]: 147/154 looper letters, 23 selfloop transitions, 9 changer transitions 0/98 dead transitions. [2021-03-24 09:45:32,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 98 transitions, 393 flow [2021-03-24 09:45:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 09:45:32,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 09:45:32,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 541 transitions. [2021-03-24 09:45:32,646 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8782467532467533 [2021-03-24 09:45:32,646 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 541 transitions. [2021-03-24 09:45:32,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 541 transitions. [2021-03-24 09:45:32,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:32,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 541 transitions. [2021-03-24 09:45:32,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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) [2021-03-24 09:45:32,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 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) [2021-03-24 09:45:32,649 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 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) [2021-03-24 09:45:32,649 INFO L185 Difference]: Start difference. First operand has 61 places, 78 transitions, 267 flow. Second operand 4 states and 541 transitions. [2021-03-24 09:45:32,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 98 transitions, 393 flow [2021-03-24 09:45:32,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 98 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 09:45:32,655 INFO L241 Difference]: Finished difference. Result has 67 places, 86 transitions, 335 flow [2021-03-24 09:45:32,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=67, PETRI_TRANSITIONS=86} [2021-03-24 09:45:32,656 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2021-03-24 09:45:32,656 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 86 transitions, 335 flow [2021-03-24 09:45:32,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 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) [2021-03-24 09:45:32,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:32,656 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:45:32,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 09:45:32,657 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]=== [2021-03-24 09:45:32,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:32,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1848717835, now seen corresponding path program 2 times [2021-03-24 09:45:32,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:32,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503720722] [2021-03-24 09:45:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:32,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:32,713 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-24 09:45:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 09:45:32,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:32,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:32,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503720722] [2021-03-24 09:45:32,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:32,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 09:45:32,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933654555] [2021-03-24 09:45:32,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 09:45:32,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:32,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 09:45:32,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 09:45:32,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 154 [2021-03-24 09:45:32,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 86 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2021-03-24 09:45:32,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:32,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 154 [2021-03-24 09:45:32,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:32,789 INFO L129 PetriNetUnfolder]: 371/1398 cut-off events. [2021-03-24 09:45:32,790 INFO L130 PetriNetUnfolder]: For 412/467 co-relation queries the response was YES. [2021-03-24 09:45:32,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 1398 events. 371/1398 cut-off events. For 412/467 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12749 event pairs, 2 based on Foata normal form. 54/1344 useless extension candidates. Maximal degree in co-relation 2008. Up to 262 conditions per place. [2021-03-24 09:45:32,797 INFO L132 encePairwiseOnDemand]: 148/154 looper letters, 5 selfloop transitions, 6 changer transitions 0/86 dead transitions. [2021-03-24 09:45:32,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 86 transitions, 357 flow [2021-03-24 09:45:32,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 09:45:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 09:45:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-24 09:45:32,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2021-03-24 09:45:32,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-24 09:45:32,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-24 09:45:32,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:32,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-24 09:45:32,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2021-03-24 09:45:32,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2021-03-24 09:45:32,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2021-03-24 09:45:32,801 INFO L185 Difference]: Start difference. First operand has 67 places, 86 transitions, 335 flow. Second operand 3 states and 407 transitions. [2021-03-24 09:45:32,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 86 transitions, 357 flow [2021-03-24 09:45:32,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 357 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 09:45:32,804 INFO L241 Difference]: Finished difference. Result has 70 places, 86 transitions, 357 flow [2021-03-24 09:45:32,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=70, PETRI_TRANSITIONS=86} [2021-03-24 09:45:32,807 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 13 predicate places. [2021-03-24 09:45:32,807 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 86 transitions, 357 flow [2021-03-24 09:45:32,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2021-03-24 09:45:32,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:32,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:45:32,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 09:45:32,807 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]=== [2021-03-24 09:45:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:32,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1204478458, now seen corresponding path program 1 times [2021-03-24 09:45:32,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:32,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148742932] [2021-03-24 09:45:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:32,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:32,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:32,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:32,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:32,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:32,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148742932] [2021-03-24 09:45:32,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:32,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:45:32,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066057945] [2021-03-24 09:45:32,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 09:45:32,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 09:45:32,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 09:45:32,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-24 09:45:32,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 86 transitions, 357 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) [2021-03-24 09:45:32,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:32,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-24 09:45:32,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:33,098 INFO L129 PetriNetUnfolder]: 961/2881 cut-off events. [2021-03-24 09:45:33,098 INFO L130 PetriNetUnfolder]: For 1681/1732 co-relation queries the response was YES. [2021-03-24 09:45:33,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5897 conditions, 2881 events. 961/2881 cut-off events. For 1681/1732 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 27353 event pairs, 85 based on Foata normal form. 4/2706 useless extension candidates. Maximal degree in co-relation 5101. Up to 484 conditions per place. [2021-03-24 09:45:33,118 INFO L132 encePairwiseOnDemand]: 144/154 looper letters, 72 selfloop transitions, 47 changer transitions 0/161 dead transitions. [2021-03-24 09:45:33,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 161 transitions, 911 flow [2021-03-24 09:45:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 09:45:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 09:45:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1153 transitions. [2021-03-24 09:45:33,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8318903318903319 [2021-03-24 09:45:33,120 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1153 transitions. [2021-03-24 09:45:33,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1153 transitions. [2021-03-24 09:45:33,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:33,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1153 transitions. [2021-03-24 09:45:33,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.11111111111111) internal successors, (1153), 9 states have internal predecessors, (1153), 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) [2021-03-24 09:45:33,125 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) [2021-03-24 09:45:33,125 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) [2021-03-24 09:45:33,125 INFO L185 Difference]: Start difference. First operand has 70 places, 86 transitions, 357 flow. Second operand 9 states and 1153 transitions. [2021-03-24 09:45:33,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 161 transitions, 911 flow [2021-03-24 09:45:33,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 161 transitions, 899 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 09:45:33,132 INFO L241 Difference]: Finished difference. Result has 82 places, 123 transitions, 690 flow [2021-03-24 09:45:33,132 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=690, PETRI_PLACES=82, PETRI_TRANSITIONS=123} [2021-03-24 09:45:33,132 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2021-03-24 09:45:33,132 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 123 transitions, 690 flow [2021-03-24 09:45:33,133 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) [2021-03-24 09:45:33,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:33,133 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] [2021-03-24 09:45:33,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 09:45:33,133 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]=== [2021-03-24 09:45:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash -919528548, now seen corresponding path program 1 times [2021-03-24 09:45:33,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:33,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769791211] [2021-03-24 09:45:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:33,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:33,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:33,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769791211] [2021-03-24 09:45:33,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:33,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:45:33,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462809528] [2021-03-24 09:45:33,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 09:45:33,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:33,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 09:45:33,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 09:45:33,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 154 [2021-03-24 09:45:33,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 123 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-03-24 09:45:33,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:33,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 154 [2021-03-24 09:45:33,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:33,420 INFO L129 PetriNetUnfolder]: 1032/3049 cut-off events. [2021-03-24 09:45:33,420 INFO L130 PetriNetUnfolder]: For 2298/2344 co-relation queries the response was YES. [2021-03-24 09:45:33,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6995 conditions, 3049 events. 1032/3049 cut-off events. For 2298/2344 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 28813 event pairs, 113 based on Foata normal form. 32/2942 useless extension candidates. Maximal degree in co-relation 6421. Up to 601 conditions per place. [2021-03-24 09:45:33,445 INFO L132 encePairwiseOnDemand]: 144/154 looper letters, 76 selfloop transitions, 51 changer transitions 0/164 dead transitions. [2021-03-24 09:45:33,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 164 transitions, 1145 flow [2021-03-24 09:45:33,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 09:45:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 09:45:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 892 transitions. [2021-03-24 09:45:33,448 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274582560296846 [2021-03-24 09:45:33,448 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:33,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.42857142857143) internal successors, (892), 7 states have internal predecessors, (892), 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) [2021-03-24 09:45:33,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 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) [2021-03-24 09:45:33,452 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 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) [2021-03-24 09:45:33,452 INFO L185 Difference]: Start difference. First operand has 82 places, 123 transitions, 690 flow. Second operand 7 states and 892 transitions. [2021-03-24 09:45:33,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 164 transitions, 1145 flow [2021-03-24 09:45:33,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 164 transitions, 1143 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-24 09:45:33,486 INFO L241 Difference]: Finished difference. Result has 90 places, 134 transitions, 884 flow [2021-03-24 09:45:33,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=884, PETRI_PLACES=90, PETRI_TRANSITIONS=134} [2021-03-24 09:45:33,486 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 33 predicate places. [2021-03-24 09:45:33,486 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 134 transitions, 884 flow [2021-03-24 09:45:33,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-03-24 09:45:33,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:33,487 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] [2021-03-24 09:45:33,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 09:45:33,487 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]=== [2021-03-24 09:45:33,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:33,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1083374272, now seen corresponding path program 1 times [2021-03-24 09:45:33,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:33,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390422233] [2021-03-24 09:45:33,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:33,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:33,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:33,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390422233] [2021-03-24 09:45:33,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:33,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:45:33,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131355984] [2021-03-24 09:45:33,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 09:45:33,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:33,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 09:45:33,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 09:45:33,531 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 154 [2021-03-24 09:45:33,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 134 transitions, 884 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-03-24 09:45:33,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:33,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 154 [2021-03-24 09:45:33,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:33,781 INFO L129 PetriNetUnfolder]: 1033/3082 cut-off events. [2021-03-24 09:45:33,782 INFO L130 PetriNetUnfolder]: For 3088/3152 co-relation queries the response was YES. [2021-03-24 09:45:33,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7209 conditions, 3082 events. 1033/3082 cut-off events. For 3088/3152 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 29607 event pairs, 60 based on Foata normal form. 55/3012 useless extension candidates. Maximal degree in co-relation 6624. Up to 550 conditions per place. [2021-03-24 09:45:33,802 INFO L132 encePairwiseOnDemand]: 144/154 looper letters, 85 selfloop transitions, 53 changer transitions 0/175 dead transitions. [2021-03-24 09:45:33,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 175 transitions, 1376 flow [2021-03-24 09:45:33,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 09:45:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 09:45:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 892 transitions. [2021-03-24 09:45:33,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274582560296846 [2021-03-24 09:45:33,806 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:33,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 892 transitions. [2021-03-24 09:45:33,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.42857142857143) internal successors, (892), 7 states have internal predecessors, (892), 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) [2021-03-24 09:45:33,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 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) [2021-03-24 09:45:33,810 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 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) [2021-03-24 09:45:33,810 INFO L185 Difference]: Start difference. First operand has 90 places, 134 transitions, 884 flow. Second operand 7 states and 892 transitions. [2021-03-24 09:45:33,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 175 transitions, 1376 flow [2021-03-24 09:45:33,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 175 transitions, 1352 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 09:45:33,822 INFO L241 Difference]: Finished difference. Result has 97 places, 145 transitions, 1064 flow [2021-03-24 09:45:33,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1064, PETRI_PLACES=97, PETRI_TRANSITIONS=145} [2021-03-24 09:45:33,823 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2021-03-24 09:45:33,823 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 145 transitions, 1064 flow [2021-03-24 09:45:33,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-03-24 09:45:33,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:33,823 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, 1, 1, 1, 1, 1] [2021-03-24 09:45:33,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 09:45:33,823 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]=== [2021-03-24 09:45:33,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:33,824 INFO L82 PathProgramCache]: Analyzing trace with hash 269370126, now seen corresponding path program 1 times [2021-03-24 09:45:33,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:33,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800575823] [2021-03-24 09:45:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:45:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:45:33,881 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-24 09:45:33,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 09:45:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:45:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:45:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:45:33,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800575823] [2021-03-24 09:45:33,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:45:33,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 09:45:33,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629339415] [2021-03-24 09:45:33,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 09:45:33,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:45:33,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 09:45:33,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-24 09:45:33,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 154 [2021-03-24 09:45:33,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 145 transitions, 1064 flow. Second operand has 7 states, 7 states have (on average 118.42857142857143) internal successors, (829), 7 states have internal predecessors, (829), 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) [2021-03-24 09:45:33,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:45:33,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 154 [2021-03-24 09:45:33,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:45:34,242 INFO L129 PetriNetUnfolder]: 1059/3530 cut-off events. [2021-03-24 09:45:34,242 INFO L130 PetriNetUnfolder]: For 3169/3246 co-relation queries the response was YES. [2021-03-24 09:45:34,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 3530 events. 1059/3530 cut-off events. For 3169/3246 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 38272 event pairs, 9 based on Foata normal form. 68/3457 useless extension candidates. Maximal degree in co-relation 6896. Up to 758 conditions per place. [2021-03-24 09:45:34,263 INFO L132 encePairwiseOnDemand]: 144/154 looper letters, 50 selfloop transitions, 21 changer transitions 30/196 dead transitions. [2021-03-24 09:45:34,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 196 transitions, 1572 flow [2021-03-24 09:45:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 09:45:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 09:45:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1470 transitions. [2021-03-24 09:45:34,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2021-03-24 09:45:34,266 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1470 transitions. [2021-03-24 09:45:34,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1470 transitions. [2021-03-24 09:45:34,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:45:34,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1470 transitions. [2021-03-24 09:45:34,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.5) internal successors, (1470), 12 states have internal predecessors, (1470), 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) [2021-03-24 09:45:34,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 154.0) internal successors, (2002), 13 states have internal predecessors, (2002), 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) [2021-03-24 09:45:34,271 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 154.0) internal successors, (2002), 13 states have internal predecessors, (2002), 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) [2021-03-24 09:45:34,271 INFO L185 Difference]: Start difference. First operand has 97 places, 145 transitions, 1064 flow. Second operand 12 states and 1470 transitions. [2021-03-24 09:45:34,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 196 transitions, 1572 flow [2021-03-24 09:45:34,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 196 transitions, 1532 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-24 09:45:34,280 INFO L241 Difference]: Finished difference. Result has 110 places, 141 transitions, 1030 flow [2021-03-24 09:45:34,280 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1030, PETRI_PLACES=110, PETRI_TRANSITIONS=141} [2021-03-24 09:45:34,281 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 53 predicate places. [2021-03-24 09:45:34,281 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 141 transitions, 1030 flow [2021-03-24 09:45:34,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 118.42857142857143) internal successors, (829), 7 states have internal predecessors, (829), 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) [2021-03-24 09:45:34,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:45:34,281 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, 1, 1, 1, 1, 1] [2021-03-24 09:45:34,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 09:45:34,281 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]=== [2021-03-24 09:45:34,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:45:34,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1100239440, now seen corresponding path program 2 times [2021-03-24 09:45:34,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:45:34,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68505886] [2021-03-24 09:45:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:45:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 09:45:34,290 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 09:45:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 09:45:34,296 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 09:45:34,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 09:45:34,312 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 09:45:34,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 09:45:34,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 09:45:34 BasicIcfg [2021-03-24 09:45:34,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 09:45:34,341 INFO L168 Benchmark]: Toolchain (without parser) took 4543.85 ms. Allocated memory was 255.9 MB in the beginning and 536.9 MB in the end (delta: 281.0 MB). Free memory was 234.9 MB in the beginning and 376.6 MB in the end (delta: -141.7 MB). Peak memory consumption was 138.9 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,341 INFO L168 Benchmark]: CDTParser took 0.08 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. [2021-03-24 09:45:34,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.67 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 234.9 MB in the beginning and 314.4 MB in the end (delta: -79.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.06 ms. Allocated memory is still 350.2 MB. Free memory was 314.4 MB in the beginning and 312.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,342 INFO L168 Benchmark]: Boogie Preprocessor took 13.29 ms. Allocated memory is still 350.2 MB. Free memory was 312.3 MB in the beginning and 310.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,342 INFO L168 Benchmark]: RCFGBuilder took 386.85 ms. Allocated memory is still 350.2 MB. Free memory was 310.9 MB in the beginning and 280.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,342 INFO L168 Benchmark]: TraceAbstraction took 3746.57 ms. Allocated memory was 350.2 MB in the beginning and 536.9 MB in the end (delta: 186.6 MB). Free memory was 280.8 MB in the beginning and 376.6 MB in the end (delta: -95.8 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.0 GB. [2021-03-24 09:45:34,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 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 368.67 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 234.9 MB in the beginning and 314.4 MB in the end (delta: -79.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.06 ms. Allocated memory is still 350.2 MB. Free memory was 314.4 MB in the beginning and 312.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.29 ms. Allocated memory is still 350.2 MB. Free memory was 312.3 MB in the beginning and 310.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 386.85 ms. Allocated memory is still 350.2 MB. Free memory was 310.9 MB in the beginning and 280.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3746.57 ms. Allocated memory was 350.2 MB in the beginning and 536.9 MB in the end (delta: 186.6 MB). Free memory was 280.8 MB in the beginning and 376.6 MB in the end (delta: -95.8 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1096.0ms, 92 PlacesBefore, 57 PlacesAfterwards, 90 TransitionsBefore, 55 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1932, positive: 1845, positive conditional: 0, positive unconditional: 1845, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1253, positive: 1229, positive conditional: 0, positive unconditional: 1229, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1253, positive: 1229, positive conditional: 0, positive unconditional: 1229, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1932, positive: 616, positive conditional: 0, positive unconditional: 616, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 1253, unknown conditional: 0, unknown unconditional: 1253] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; [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 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3621.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1943.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1152.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 140 SDtfs, 211 SDslu, 106 SDs, 0 SdLazy, 564 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 270.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 147.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=6, InterpolantAutomatonStates: 51, 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: 17.0ms SsaConstructionTime, 103.6ms SatisfiabilityAnalysisTime, 258.8ms InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...