/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 18:32:33,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 18:32:33,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 18:32:33,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 18:32:33,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 18:32:33,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 18:32:33,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 18:32:33,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 18:32:33,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 18:32:33,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 18:32:33,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 18:32:33,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 18:32:33,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 18:32:33,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 18:32:33,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 18:32:33,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 18:32:33,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 18:32:33,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 18:32:33,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 18:32:33,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 18:32:33,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 18:32:33,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 18:32:33,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 18:32:33,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 18:32:33,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 18:32:33,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 18:32:33,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 18:32:33,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 18:32:33,913 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-SemanticLbe.epf [2021-03-24 18:32:33,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 18:32:33,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 18:32:33,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 18:32:33,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 18:32:33,945 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 18:32:33,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 18:32:33,946 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 18:32:33,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 18:32:33,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 18:32:33,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 18:32:33,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 18:32:33,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 18:32:33,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 18:32:33,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 18:32:33,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 18:32:34,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 18:32:34,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 18:32:34,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 18:32:34,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 18:32:34,211 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 18:32:34,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-03-24 18:32:34,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/520ec49eb/adbf602bdb164fa6830e577fa9c1da2a/FLAG8b2d55103 [2021-03-24 18:32:34,629 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 18:32:34,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-03-24 18:32:34,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/520ec49eb/adbf602bdb164fa6830e577fa9c1da2a/FLAG8b2d55103 [2021-03-24 18:32:34,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/520ec49eb/adbf602bdb164fa6830e577fa9c1da2a [2021-03-24 18:32:34,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 18:32:35,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 18:32:35,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 18:32:35,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 18:32:35,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 18:32:35,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:32:34" (1/1) ... [2021-03-24 18:32:35,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c31a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35, skipping insertion in model container [2021-03-24 18:32:35,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:32:34" (1/1) ... [2021-03-24 18:32:35,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 18:32:35,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 18:32:35,236 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/qrcu-1.i[30694,30707] [2021-03-24 18:32:35,244 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/qrcu-1.i[30916,30929] [2021-03-24 18:32:35,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:32:35,287 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 18:32:35,321 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/qrcu-1.i[30694,30707] [2021-03-24 18:32:35,322 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/qrcu-1.i[30916,30929] [2021-03-24 18:32:35,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:32:35,365 INFO L208 MainTranslator]: Completed translation [2021-03-24 18:32:35,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35 WrapperNode [2021-03-24 18:32:35,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 18:32:35,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 18:32:35,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 18:32:35,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 18:32:35,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 18:32:35,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 18:32:35,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 18:32:35,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 18:32:35,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (1/1) ... [2021-03-24 18:32:35,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 18:32:35,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 18:32:35,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 18:32:35,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 18:32:35,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (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 18:32:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2021-03-24 18:32:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2021-03-24 18:32:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2021-03-24 18:32:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2021-03-24 18:32:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 18:32:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 18:32:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2021-03-24 18:32:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2021-03-24 18:32:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 18:32:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 18:32:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 18:32:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 18:32:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 18:32:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 18:32:35,537 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 18:32:36,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 18:32:36,268 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 18:32:36,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:32:36 BoogieIcfgContainer [2021-03-24 18:32:36,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 18:32:36,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 18:32:36,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 18:32:36,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 18:32:36,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 06:32:34" (1/3) ... [2021-03-24 18:32:36,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b53ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:32:36, skipping insertion in model container [2021-03-24 18:32:36,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:35" (2/3) ... [2021-03-24 18:32:36,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b53ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:32:36, skipping insertion in model container [2021-03-24 18:32:36,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:32:36" (3/3) ... [2021-03-24 18:32:36,274 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2021-03-24 18:32:36,279 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 18:32:36,281 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 18:32:36,282 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 18:32:36,318 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,319 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,320 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,321 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,322 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,322 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,322 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,322 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,322 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,323 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,324 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,325 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,326 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,327 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,338 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,339 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,340 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,341 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,342 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,342 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,342 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,342 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,342 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,343 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,344 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,345 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,345 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,345 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,345 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,346 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,347 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,349 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,351 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,352 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,353 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,361 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,363 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,365 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,365 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,367 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:36,374 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-24 18:32:36,386 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 18:32:36,398 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 18:32:36,398 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 18:32:36,398 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 18:32:36,398 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 18:32:36,398 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 18:32:36,399 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 18:32:36,399 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 18:32:36,399 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 18:32:36,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 175 transitions, 392 flow [2021-03-24 18:32:36,469 INFO L129 PetriNetUnfolder]: 23/183 cut-off events. [2021-03-24 18:32:36,470 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-24 18:32:36,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 183 events. 23/183 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2021-03-24 18:32:36,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 175 transitions, 392 flow [2021-03-24 18:32:36,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 159 transitions, 345 flow [2021-03-24 18:32:36,483 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 18:32:36,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 159 transitions, 345 flow [2021-03-24 18:32:36,492 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 159 transitions, 345 flow [2021-03-24 18:32:36,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 159 transitions, 345 flow [2021-03-24 18:32:36,516 INFO L129 PetriNetUnfolder]: 21/170 cut-off events. [2021-03-24 18:32:36,516 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-24 18:32:36,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 170 events. 21/170 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 433 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2021-03-24 18:32:36,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 10120 [2021-03-24 18:32:40,014 INFO L154 LiptonReduction]: Checked pairs total: 12308 [2021-03-24 18:32:40,015 INFO L156 LiptonReduction]: Total number of compositions: 85 [2021-03-24 18:32:40,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3534 [2021-03-24 18:32:40,024 INFO L129 PetriNetUnfolder]: 8/53 cut-off events. [2021-03-24 18:32:40,025 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 18:32:40,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:40,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:40,025 INFO L428 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:40,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:40,028 INFO L82 PathProgramCache]: Analyzing trace with hash 392022303, now seen corresponding path program 1 times [2021-03-24 18:32:40,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:40,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119299818] [2021-03-24 18:32:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:40,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:40,188 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-24 18:32:40,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:40,194 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-24 18:32:40,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:40,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:40,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:40,203 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 18:32:40,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119299818] [2021-03-24 18:32:40,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:40,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 18:32:40,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101538251] [2021-03-24 18:32:40,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:32:40,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:40,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:32:40,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:32:40,218 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 260 [2021-03-24 18:32:40,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 86 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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 18:32:40,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:40,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 260 [2021-03-24 18:32:40,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:40,452 INFO L129 PetriNetUnfolder]: 467/1088 cut-off events. [2021-03-24 18:32:40,452 INFO L130 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2021-03-24 18:32:40,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1876 conditions, 1088 events. 467/1088 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6966 event pairs, 137 based on Foata normal form. 135/1095 useless extension candidates. Maximal degree in co-relation 1760. Up to 523 conditions per place. [2021-03-24 18:32:40,465 INFO L132 encePairwiseOnDemand]: 242/260 looper letters, 45 selfloop transitions, 19 changer transitions 0/115 dead transitions. [2021-03-24 18:32:40,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 115 transitions, 388 flow [2021-03-24 18:32:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 18:32:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 18:32:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2021-03-24 18:32:40,478 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7461538461538462 [2021-03-24 18:32:40,478 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2021-03-24 18:32:40,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2021-03-24 18:32:40,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:40,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2021-03-24 18:32:40,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 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 18:32:40,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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 18:32:40,491 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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 18:32:40,493 INFO L185 Difference]: Start difference. First operand has 78 places, 86 transitions, 199 flow. Second operand 6 states and 1164 transitions. [2021-03-24 18:32:40,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 115 transitions, 388 flow [2021-03-24 18:32:40,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 115 transitions, 368 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-24 18:32:40,499 INFO L241 Difference]: Finished difference. Result has 82 places, 104 transitions, 339 flow [2021-03-24 18:32:40,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=82, PETRI_TRANSITIONS=104} [2021-03-24 18:32:40,501 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 4 predicate places. [2021-03-24 18:32:40,501 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 104 transitions, 339 flow [2021-03-24 18:32:40,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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 18:32:40,502 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:40,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:40,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 18:32:40,502 INFO L428 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:40,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:40,502 INFO L82 PathProgramCache]: Analyzing trace with hash -727867361, now seen corresponding path program 1 times [2021-03-24 18:32:40,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:40,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291540481] [2021-03-24 18:32:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:40,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:40,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:40,572 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 18:32:40,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291540481] [2021-03-24 18:32:40,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:40,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:40,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792996480] [2021-03-24 18:32:40,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:40,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:40,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:40,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:40,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 260 [2021-03-24 18:32:40,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 104 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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 18:32:40,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:40,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 260 [2021-03-24 18:32:40,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:40,610 INFO L129 PetriNetUnfolder]: 113/470 cut-off events. [2021-03-24 18:32:40,610 INFO L130 PetriNetUnfolder]: For 105/113 co-relation queries the response was YES. [2021-03-24 18:32:40,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 470 events. 113/470 cut-off events. For 105/113 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3001 event pairs, 6 based on Foata normal form. 8/437 useless extension candidates. Maximal degree in co-relation 564. Up to 48 conditions per place. [2021-03-24 18:32:40,613 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 6 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2021-03-24 18:32:40,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 106 transitions, 359 flow [2021-03-24 18:32:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2021-03-24 18:32:40,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2021-03-24 18:32:40,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2021-03-24 18:32:40,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2021-03-24 18:32:40,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:40,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2021-03-24 18:32:40,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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 18:32:40,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:40,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:40,617 INFO L185 Difference]: Start difference. First operand has 82 places, 104 transitions, 339 flow. Second operand 3 states and 720 transitions. [2021-03-24 18:32:40,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 106 transitions, 359 flow [2021-03-24 18:32:40,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 106 transitions, 359 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:40,622 INFO L241 Difference]: Finished difference. Result has 85 places, 104 transitions, 347 flow [2021-03-24 18:32:40,622 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=85, PETRI_TRANSITIONS=104} [2021-03-24 18:32:40,623 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2021-03-24 18:32:40,623 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 104 transitions, 347 flow [2021-03-24 18:32:40,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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 18:32:40,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:40,623 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 18:32:40,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 18:32:40,624 INFO L428 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:40,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1089050759, now seen corresponding path program 1 times [2021-03-24 18:32:40,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:40,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207696561] [2021-03-24 18:32:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:40,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:40,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:40,687 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 18:32:40,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207696561] [2021-03-24 18:32:40,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:40,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:40,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426091375] [2021-03-24 18:32:40,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:40,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:40,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:40,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:40,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 260 [2021-03-24 18:32:40,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 104 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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 18:32:40,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:40,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 260 [2021-03-24 18:32:40,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:40,756 INFO L129 PetriNetUnfolder]: 120/484 cut-off events. [2021-03-24 18:32:40,756 INFO L130 PetriNetUnfolder]: For 108/116 co-relation queries the response was YES. [2021-03-24 18:32:40,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 484 events. 120/484 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3078 event pairs, 6 based on Foata normal form. 8/458 useless extension candidates. Maximal degree in co-relation 647. Up to 61 conditions per place. [2021-03-24 18:32:40,759 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 6 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2021-03-24 18:32:40,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 106 transitions, 367 flow [2021-03-24 18:32:40,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2021-03-24 18:32:40,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9115384615384615 [2021-03-24 18:32:40,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2021-03-24 18:32:40,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2021-03-24 18:32:40,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:40,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2021-03-24 18:32:40,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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 18:32:40,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:40,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:40,764 INFO L185 Difference]: Start difference. First operand has 85 places, 104 transitions, 347 flow. Second operand 3 states and 711 transitions. [2021-03-24 18:32:40,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 106 transitions, 367 flow [2021-03-24 18:32:40,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 106 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 18:32:40,768 INFO L241 Difference]: Finished difference. Result has 86 places, 104 transitions, 351 flow [2021-03-24 18:32:40,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=86, PETRI_TRANSITIONS=104} [2021-03-24 18:32:40,768 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2021-03-24 18:32:40,768 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 104 transitions, 351 flow [2021-03-24 18:32:40,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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 18:32:40,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:40,769 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] [2021-03-24 18:32:40,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 18:32:40,769 INFO L428 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:40,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:40,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1198937217, now seen corresponding path program 1 times [2021-03-24 18:32:40,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:40,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408063939] [2021-03-24 18:32:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:40,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:40,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:40,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:40,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:40,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:40,838 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 18:32:40,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408063939] [2021-03-24 18:32:40,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:40,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:32:40,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026451384] [2021-03-24 18:32:40,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:32:40,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:40,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:32:40,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:32:40,840 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 260 [2021-03-24 18:32:40,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 104 transitions, 351 flow. Second operand has 5 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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 18:32:40,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:40,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 260 [2021-03-24 18:32:40,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:41,034 INFO L129 PetriNetUnfolder]: 831/2073 cut-off events. [2021-03-24 18:32:41,034 INFO L130 PetriNetUnfolder]: For 388/484 co-relation queries the response was YES. [2021-03-24 18:32:41,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 2073 events. 831/2073 cut-off events. For 388/484 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 16004 event pairs, 149 based on Foata normal form. 38/1925 useless extension candidates. Maximal degree in co-relation 2821. Up to 463 conditions per place. [2021-03-24 18:32:41,049 INFO L132 encePairwiseOnDemand]: 250/260 looper letters, 39 selfloop transitions, 18 changer transitions 0/139 dead transitions. [2021-03-24 18:32:41,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 139 transitions, 552 flow [2021-03-24 18:32:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 18:32:41,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 18:32:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1386 transitions. [2021-03-24 18:32:41,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7615384615384615 [2021-03-24 18:32:41,052 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1386 transitions. [2021-03-24 18:32:41,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1386 transitions. [2021-03-24 18:32:41,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:41,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1386 transitions. [2021-03-24 18:32:41,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 18:32:41,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:41,058 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:41,058 INFO L185 Difference]: Start difference. First operand has 86 places, 104 transitions, 351 flow. Second operand 7 states and 1386 transitions. [2021-03-24 18:32:41,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 139 transitions, 552 flow [2021-03-24 18:32:41,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 139 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 18:32:41,064 INFO L241 Difference]: Finished difference. Result has 92 places, 119 transitions, 456 flow [2021-03-24 18:32:41,064 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=456, PETRI_PLACES=92, PETRI_TRANSITIONS=119} [2021-03-24 18:32:41,064 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 14 predicate places. [2021-03-24 18:32:41,064 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 119 transitions, 456 flow [2021-03-24 18:32:41,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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 18:32:41,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:41,065 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] [2021-03-24 18:32:41,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 18:32:41,065 INFO L428 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:41,065 INFO L82 PathProgramCache]: Analyzing trace with hash 150924975, now seen corresponding path program 1 times [2021-03-24 18:32:41,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:41,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195877404] [2021-03-24 18:32:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:41,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:41,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:41,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:41,111 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 18:32:41,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195877404] [2021-03-24 18:32:41,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:41,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 18:32:41,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902591295] [2021-03-24 18:32:41,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:32:41,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:41,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:32:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:32:41,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 260 [2021-03-24 18:32:41,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 119 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 195.5) internal successors, (782), 4 states have internal predecessors, (782), 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 18:32:41,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:41,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 260 [2021-03-24 18:32:41,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:41,402 INFO L129 PetriNetUnfolder]: 1148/3038 cut-off events. [2021-03-24 18:32:41,402 INFO L130 PetriNetUnfolder]: For 1790/1960 co-relation queries the response was YES. [2021-03-24 18:32:41,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6453 conditions, 3038 events. 1148/3038 cut-off events. For 1790/1960 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 25959 event pairs, 149 based on Foata normal form. 68/2843 useless extension candidates. Maximal degree in co-relation 5618. Up to 622 conditions per place. [2021-03-24 18:32:41,423 INFO L132 encePairwiseOnDemand]: 254/260 looper letters, 56 selfloop transitions, 11 changer transitions 7/161 dead transitions. [2021-03-24 18:32:41,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 161 transitions, 789 flow [2021-03-24 18:32:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:32:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:32:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1006 transitions. [2021-03-24 18:32:41,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7738461538461539 [2021-03-24 18:32:41,425 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1006 transitions. [2021-03-24 18:32:41,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1006 transitions. [2021-03-24 18:32:41,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:41,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1006 transitions. [2021-03-24 18:32:41,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 18:32:41,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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 18:32:41,430 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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 18:32:41,430 INFO L185 Difference]: Start difference. First operand has 92 places, 119 transitions, 456 flow. Second operand 5 states and 1006 transitions. [2021-03-24 18:32:41,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 161 transitions, 789 flow [2021-03-24 18:32:41,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 161 transitions, 789 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:41,437 INFO L241 Difference]: Finished difference. Result has 99 places, 127 transitions, 552 flow [2021-03-24 18:32:41,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=552, PETRI_PLACES=99, PETRI_TRANSITIONS=127} [2021-03-24 18:32:41,437 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 21 predicate places. [2021-03-24 18:32:41,437 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 127 transitions, 552 flow [2021-03-24 18:32:41,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 195.5) internal successors, (782), 4 states have internal predecessors, (782), 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 18:32:41,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:41,438 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] [2021-03-24 18:32:41,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 18:32:41,438 INFO L428 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:41,438 INFO L82 PathProgramCache]: Analyzing trace with hash -208229607, now seen corresponding path program 1 times [2021-03-24 18:32:41,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:41,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580311198] [2021-03-24 18:32:41,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:41,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:41,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 18:32:41,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:41,466 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 18:32:41,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580311198] [2021-03-24 18:32:41,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:41,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 18:32:41,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428459176] [2021-03-24 18:32:41,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:41,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:41,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:41,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:41,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 260 [2021-03-24 18:32:41,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 127 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 18:32:41,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:41,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 260 [2021-03-24 18:32:41,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:41,541 INFO L129 PetriNetUnfolder]: 201/876 cut-off events. [2021-03-24 18:32:41,541 INFO L130 PetriNetUnfolder]: For 453/550 co-relation queries the response was YES. [2021-03-24 18:32:41,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1725 conditions, 876 events. 201/876 cut-off events. For 453/550 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6718 event pairs, 5 based on Foata normal form. 26/848 useless extension candidates. Maximal degree in co-relation 1609. Up to 108 conditions per place. [2021-03-24 18:32:41,547 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 34 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2021-03-24 18:32:41,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 128 transitions, 630 flow [2021-03-24 18:32:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2021-03-24 18:32:41,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2021-03-24 18:32:41,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 679 transitions. [2021-03-24 18:32:41,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 679 transitions. [2021-03-24 18:32:41,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:41,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 679 transitions. [2021-03-24 18:32:41,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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 18:32:41,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:41,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:41,551 INFO L185 Difference]: Start difference. First operand has 99 places, 127 transitions, 552 flow. Second operand 3 states and 679 transitions. [2021-03-24 18:32:41,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 128 transitions, 630 flow [2021-03-24 18:32:41,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 128 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:41,554 INFO L241 Difference]: Finished difference. Result has 103 places, 128 transitions, 574 flow [2021-03-24 18:32:41,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=103, PETRI_TRANSITIONS=128} [2021-03-24 18:32:41,555 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 25 predicate places. [2021-03-24 18:32:41,555 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 128 transitions, 574 flow [2021-03-24 18:32:41,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 18:32:41,555 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:41,555 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] [2021-03-24 18:32:41,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 18:32:41,555 INFO L428 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:41,556 INFO L82 PathProgramCache]: Analyzing trace with hash 605538917, now seen corresponding path program 2 times [2021-03-24 18:32:41,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:41,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962891875] [2021-03-24 18:32:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:41,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:41,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-24 18:32:41,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:41,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:41,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:41,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:41,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:41,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:41,600 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 18:32:41,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962891875] [2021-03-24 18:32:41,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:41,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 18:32:41,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328905949] [2021-03-24 18:32:41,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 18:32:41,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:41,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 18:32:41,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 18:32:41,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 260 [2021-03-24 18:32:41,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 128 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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 18:32:41,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:41,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 260 [2021-03-24 18:32:41,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:41,963 INFO L129 PetriNetUnfolder]: 1037/2451 cut-off events. [2021-03-24 18:32:41,963 INFO L130 PetriNetUnfolder]: For 2566/2682 co-relation queries the response was YES. [2021-03-24 18:32:41,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5978 conditions, 2451 events. 1037/2451 cut-off events. For 2566/2682 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19773 event pairs, 31 based on Foata normal form. 142/2459 useless extension candidates. Maximal degree in co-relation 5605. Up to 762 conditions per place. [2021-03-24 18:32:41,979 INFO L132 encePairwiseOnDemand]: 240/260 looper letters, 99 selfloop transitions, 29 changer transitions 0/193 dead transitions. [2021-03-24 18:32:41,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 193 transitions, 1172 flow [2021-03-24 18:32:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 18:32:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 18:32:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1365 transitions. [2021-03-24 18:32:41,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-24 18:32:41,982 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1365 transitions. [2021-03-24 18:32:41,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1365 transitions. [2021-03-24 18:32:41,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:41,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1365 transitions. [2021-03-24 18:32:41,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 18:32:41,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:41,987 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:41,987 INFO L185 Difference]: Start difference. First operand has 103 places, 128 transitions, 574 flow. Second operand 7 states and 1365 transitions. [2021-03-24 18:32:41,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 193 transitions, 1172 flow [2021-03-24 18:32:41,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 193 transitions, 1160 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:41,996 INFO L241 Difference]: Finished difference. Result has 113 places, 152 transitions, 847 flow [2021-03-24 18:32:41,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=847, PETRI_PLACES=113, PETRI_TRANSITIONS=152} [2021-03-24 18:32:41,996 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 35 predicate places. [2021-03-24 18:32:41,996 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 152 transitions, 847 flow [2021-03-24 18:32:41,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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 18:32:41,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:41,996 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] [2021-03-24 18:32:41,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 18:32:41,997 INFO L428 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:41,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1397762451, now seen corresponding path program 1 times [2021-03-24 18:32:41,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:41,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590546963] [2021-03-24 18:32:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:42,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,023 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 18:32:42,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590546963] [2021-03-24 18:32:42,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:42,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:42,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561068082] [2021-03-24 18:32:42,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:42,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:42,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:42,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:42,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 260 [2021-03-24 18:32:42,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 152 transitions, 847 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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 18:32:42,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:42,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 260 [2021-03-24 18:32:42,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:42,192 INFO L129 PetriNetUnfolder]: 582/1993 cut-off events. [2021-03-24 18:32:42,192 INFO L130 PetriNetUnfolder]: For 3126/3315 co-relation queries the response was YES. [2021-03-24 18:32:42,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4805 conditions, 1993 events. 582/1993 cut-off events. For 3126/3315 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17831 event pairs, 10 based on Foata normal form. 45/1896 useless extension candidates. Maximal degree in co-relation 4419. Up to 237 conditions per place. [2021-03-24 18:32:42,207 INFO L132 encePairwiseOnDemand]: 258/260 looper letters, 17 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2021-03-24 18:32:42,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 156 transitions, 911 flow [2021-03-24 18:32:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:42,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2021-03-24 18:32:42,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2021-03-24 18:32:42,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2021-03-24 18:32:42,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2021-03-24 18:32:42,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:42,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2021-03-24 18:32:42,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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 18:32:42,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:42,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:42,212 INFO L185 Difference]: Start difference. First operand has 113 places, 152 transitions, 847 flow. Second operand 3 states and 720 transitions. [2021-03-24 18:32:42,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 156 transitions, 911 flow [2021-03-24 18:32:42,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 156 transitions, 896 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:42,221 INFO L241 Difference]: Finished difference. Result has 115 places, 152 transitions, 837 flow [2021-03-24 18:32:42,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=837, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2021-03-24 18:32:42,221 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 37 predicate places. [2021-03-24 18:32:42,221 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 837 flow [2021-03-24 18:32:42,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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 18:32:42,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:42,223 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 18:32:42,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 18:32:42,223 INFO L428 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:42,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:42,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1982291357, now seen corresponding path program 1 times [2021-03-24 18:32:42,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:42,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810749662] [2021-03-24 18:32:42,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:42,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,251 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 18:32:42,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810749662] [2021-03-24 18:32:42,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:42,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:42,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115521952] [2021-03-24 18:32:42,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:42,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:42,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:42,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:42,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 260 [2021-03-24 18:32:42,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 837 flow. Second operand has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 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 18:32:42,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:42,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 260 [2021-03-24 18:32:42,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:42,421 INFO L129 PetriNetUnfolder]: 590/2026 cut-off events. [2021-03-24 18:32:42,421 INFO L130 PetriNetUnfolder]: For 3257/3493 co-relation queries the response was YES. [2021-03-24 18:32:42,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4882 conditions, 2026 events. 590/2026 cut-off events. For 3257/3493 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 18227 event pairs, 10 based on Foata normal form. 61/1942 useless extension candidates. Maximal degree in co-relation 4501. Up to 240 conditions per place. [2021-03-24 18:32:42,466 INFO L132 encePairwiseOnDemand]: 258/260 looper letters, 18 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2021-03-24 18:32:42,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 156 transitions, 901 flow [2021-03-24 18:32:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:42,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2021-03-24 18:32:42,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9115384615384615 [2021-03-24 18:32:42,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2021-03-24 18:32:42,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2021-03-24 18:32:42,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:42,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2021-03-24 18:32:42,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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 18:32:42,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:42,470 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:42,470 INFO L185 Difference]: Start difference. First operand has 115 places, 152 transitions, 837 flow. Second operand 3 states and 711 transitions. [2021-03-24 18:32:42,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 156 transitions, 901 flow [2021-03-24 18:32:42,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 156 transitions, 900 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:42,479 INFO L241 Difference]: Finished difference. Result has 117 places, 152 transitions, 845 flow [2021-03-24 18:32:42,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=117, PETRI_TRANSITIONS=152} [2021-03-24 18:32:42,479 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 39 predicate places. [2021-03-24 18:32:42,479 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 152 transitions, 845 flow [2021-03-24 18:32:42,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 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 18:32:42,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:42,479 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, 1, 1, 1, 1] [2021-03-24 18:32:42,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 18:32:42,479 INFO L428 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:42,480 INFO L82 PathProgramCache]: Analyzing trace with hash -136074226, now seen corresponding path program 1 times [2021-03-24 18:32:42,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:42,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086933070] [2021-03-24 18:32:42,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:42,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,515 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 18:32:42,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086933070] [2021-03-24 18:32:42,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:42,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 18:32:42,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866849435] [2021-03-24 18:32:42,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:32:42,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:42,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:32:42,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:32:42,518 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 260 [2021-03-24 18:32:42,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 152 transitions, 845 flow. Second operand has 5 states, 5 states have (on average 217.4) internal successors, (1087), 5 states have internal predecessors, (1087), 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 18:32:42,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:42,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 260 [2021-03-24 18:32:42,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:42,831 INFO L129 PetriNetUnfolder]: 1016/3147 cut-off events. [2021-03-24 18:32:42,832 INFO L130 PetriNetUnfolder]: For 5892/6324 co-relation queries the response was YES. [2021-03-24 18:32:42,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8352 conditions, 3147 events. 1016/3147 cut-off events. For 5892/6324 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 30386 event pairs, 65 based on Foata normal form. 116/3087 useless extension candidates. Maximal degree in co-relation 7702. Up to 699 conditions per place. [2021-03-24 18:32:42,858 INFO L132 encePairwiseOnDemand]: 249/260 looper letters, 50 selfloop transitions, 30 changer transitions 2/198 dead transitions. [2021-03-24 18:32:42,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 198 transitions, 1271 flow [2021-03-24 18:32:42,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 18:32:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 18:32:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1572 transitions. [2021-03-24 18:32:42,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8637362637362638 [2021-03-24 18:32:42,861 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1572 transitions. [2021-03-24 18:32:42,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1572 transitions. [2021-03-24 18:32:42,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:42,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1572 transitions. [2021-03-24 18:32:42,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 224.57142857142858) internal successors, (1572), 7 states have internal predecessors, (1572), 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 18:32:42,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:42,867 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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 18:32:42,867 INFO L185 Difference]: Start difference. First operand has 117 places, 152 transitions, 845 flow. Second operand 7 states and 1572 transitions. [2021-03-24 18:32:42,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 198 transitions, 1271 flow [2021-03-24 18:32:42,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 198 transitions, 1270 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:42,880 INFO L241 Difference]: Finished difference. Result has 127 places, 174 transitions, 1116 flow [2021-03-24 18:32:42,881 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1116, PETRI_PLACES=127, PETRI_TRANSITIONS=174} [2021-03-24 18:32:42,881 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 49 predicate places. [2021-03-24 18:32:42,881 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 174 transitions, 1116 flow [2021-03-24 18:32:42,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 217.4) internal successors, (1087), 5 states have internal predecessors, (1087), 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 18:32:42,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:42,881 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, 1, 1, 1, 1] [2021-03-24 18:32:42,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 18:32:42,882 INFO L428 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:42,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:42,882 INFO L82 PathProgramCache]: Analyzing trace with hash 369612979, now seen corresponding path program 1 times [2021-03-24 18:32:42,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:42,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499841061] [2021-03-24 18:32:42,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:42,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:42,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:42,922 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 18:32:42,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499841061] [2021-03-24 18:32:42,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:42,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 18:32:42,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493135538] [2021-03-24 18:32:42,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:42,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:42,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:42,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 260 [2021-03-24 18:32:42,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 174 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 18:32:42,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:42,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 260 [2021-03-24 18:32:42,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:43,117 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [193#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0), Black: 248#(= ~ctr2~0 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 138#L770-1true, Black: 192#(= ~readerprogress1~0 0), Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0)]) [2021-03-24 18:32:43,117 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,117 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,117 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,117 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,118 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [193#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0), Black: 248#(= ~ctr2~0 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 138#L770-1true, Black: 192#(= ~readerprogress1~0 0), Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0)]) [2021-03-24 18:32:43,118 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,118 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,118 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,118 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,118 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,121 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [Black: 248#(= ~ctr2~0 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 138#L770-1true, Black: 192#(= ~readerprogress1~0 0), Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0), 190#true]) [2021-03-24 18:32:43,121 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,121 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,121 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,122 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,184 INFO L129 PetriNetUnfolder]: 893/3114 cut-off events. [2021-03-24 18:32:43,184 INFO L130 PetriNetUnfolder]: For 6357/6646 co-relation queries the response was YES. [2021-03-24 18:32:43,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8634 conditions, 3114 events. 893/3114 cut-off events. For 6357/6646 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 30918 event pairs, 45 based on Foata normal form. 87/3025 useless extension candidates. Maximal degree in co-relation 7905. Up to 308 conditions per place. [2021-03-24 18:32:43,209 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 8 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2021-03-24 18:32:43,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 166 transitions, 1096 flow [2021-03-24 18:32:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2021-03-24 18:32:43,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9051282051282051 [2021-03-24 18:32:43,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2021-03-24 18:32:43,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2021-03-24 18:32:43,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:43,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2021-03-24 18:32:43,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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 18:32:43,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:43,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:43,214 INFO L185 Difference]: Start difference. First operand has 127 places, 174 transitions, 1116 flow. Second operand 3 states and 706 transitions. [2021-03-24 18:32:43,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 166 transitions, 1096 flow [2021-03-24 18:32:43,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 166 transitions, 1062 flow, removed 17 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:43,234 INFO L241 Difference]: Finished difference. Result has 125 places, 164 transitions, 1042 flow [2021-03-24 18:32:43,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1042, PETRI_PLACES=125, PETRI_TRANSITIONS=164} [2021-03-24 18:32:43,235 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 47 predicate places. [2021-03-24 18:32:43,235 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 164 transitions, 1042 flow [2021-03-24 18:32:43,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 18:32:43,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:43,236 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, 1, 1, 1, 1] [2021-03-24 18:32:43,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 18:32:43,236 INFO L428 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:43,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:43,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1978813550, now seen corresponding path program 1 times [2021-03-24 18:32:43,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:43,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072006011] [2021-03-24 18:32:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:43,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:43,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 18:32:43,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:43,259 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 18:32:43,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072006011] [2021-03-24 18:32:43,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:43,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 18:32:43,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3394378] [2021-03-24 18:32:43,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:43,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:43,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:43,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:43,261 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 260 [2021-03-24 18:32:43,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 164 transitions, 1042 flow. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 18:32:43,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:43,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 260 [2021-03-24 18:32:43,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:43,416 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [Black: 248#(= ~ctr2~0 0), 193#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 265#true, Black: 192#(= ~readerprogress1~0 0), 138#L770-1true, Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0)]) [2021-03-24 18:32:43,416 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,416 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,416 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,416 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,417 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [Black: 248#(= ~ctr2~0 0), 193#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 265#true, 138#L770-1true, Black: 192#(= ~readerprogress1~0 0), Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0)]) [2021-03-24 18:32:43,417 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,417 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,417 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,417 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,417 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,420 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([914] L767-10-->L770-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#mutex~0.base_22|))) (and (= (select .cse0 |v_~#mutex~0.offset_22|) 0) (= |v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7| 0) (= (store |v_#pthreadsMutex_16| |v_~#mutex~0.base_22| (store .cse0 |v_~#mutex~0.offset_22| 1)) |v_#pthreadsMutex_15|) (< 1 v_qrcu_updaterThread1of1ForFork2_~sum~0_51))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#mutex~0.base=|v_~#mutex~0.base_22|, ~#mutex~0.offset=|v_~#mutex~0.offset_22|, qrcu_updaterThread1of1ForFork2_#t~nondet17=|v_qrcu_updaterThread1of1ForFork2_#t~nondet17_7|, qrcu_updaterThread1of1ForFork2_~sum~0=v_qrcu_updaterThread1of1ForFork2_~sum~0_51} AuxVars[] AssignedVars[#pthreadsMutex, qrcu_updaterThread1of1ForFork2_#t~nondet17][118], [Black: 248#(= ~ctr2~0 0), Black: 249#(= |qrcu_updaterThread1of1ForFork2_#t~post18| 0), Black: 250#(<= 1 ~ctr2~0), Black: 254#(and (<= 1 ~ctr2~0) (= |qrcu_updaterThread1of1ForFork2_#t~post18| 0)), 263#(= ~idx~0 0), 265#true, Black: 192#(= ~readerprogress1~0 0), 138#L770-1true, Black: 200#(and (= |qrcu_updaterThread1of1ForFork2_#t~mem22| 0) (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset|) 0)), 207#(= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0), Black: 209#(and (= (select (select |#memory_int| |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base|) |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset|) 0) (= ~readerprogress2~0 0)), Black: 206#(= ~readerprogress2~0 0), 21#L786-2true, 216#(< 1 qrcu_updaterThread1of1ForFork2_~sum~0), Black: 214#true, 225#(<= 2 qrcu_updaterThread1of1ForFork2_~sum~0), 100#qrcu_reader1EXITtrue, 165#true, Black: 227#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (<= 2 ~ctr1~0)), Black: 229#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0) (<= 2 qrcu_updaterThread1of1ForFork2_~sum~0)), Black: 220#true, Black: 223#(and (= ~ctr2~0 0) (<= 2 ~ctr1~0)), 110#qrcu_reader2EXITtrue, 238#(= ~readerprogress1~0 2), Black: 167#(and (= ~ctr2~0 0) (= ~ctr1~0 1)), Black: 169#(<= qrcu_updaterThread1of1ForFork2_~sum~0 1), Black: 171#(and (= qrcu_updaterThread1of1ForFork2_~sum~0 0) (= ~ctr2~0 0) (= ~ctr1~0 1)), 243#(= ~readerprogress2~0 2), Black: 173#(and (<= qrcu_updaterThread1of1ForFork2_~sum~0 1) (= ~ctr2~0 0) (= ~ctr1~0 1)), 246#true, Black: 182#(= ~readerprogress1~0 0), Black: 187#(= ~readerprogress2~0 0), 190#true]) [2021-03-24 18:32:43,420 INFO L384 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,420 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-24 18:32:43,420 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,420 INFO L387 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2021-03-24 18:32:43,462 INFO L129 PetriNetUnfolder]: 749/2659 cut-off events. [2021-03-24 18:32:43,463 INFO L130 PetriNetUnfolder]: For 5447/5696 co-relation queries the response was YES. [2021-03-24 18:32:43,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7640 conditions, 2659 events. 749/2659 cut-off events. For 5447/5696 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 26020 event pairs, 45 based on Foata normal form. 39/2612 useless extension candidates. Maximal degree in co-relation 7095. Up to 296 conditions per place. [2021-03-24 18:32:43,483 INFO L132 encePairwiseOnDemand]: 258/260 looper letters, 8 selfloop transitions, 3 changer transitions 2/162 dead transitions. [2021-03-24 18:32:43,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 162 transitions, 1052 flow [2021-03-24 18:32:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2021-03-24 18:32:43,484 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9038461538461539 [2021-03-24 18:32:43,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2021-03-24 18:32:43,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2021-03-24 18:32:43,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:43,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2021-03-24 18:32:43,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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 18:32:43,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:43,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 18:32:43,487 INFO L185 Difference]: Start difference. First operand has 125 places, 164 transitions, 1042 flow. Second operand 3 states and 705 transitions. [2021-03-24 18:32:43,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 162 transitions, 1052 flow [2021-03-24 18:32:43,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 162 transitions, 1034 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-24 18:32:43,506 INFO L241 Difference]: Finished difference. Result has 123 places, 158 transitions, 1002 flow [2021-03-24 18:32:43,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1002, PETRI_PLACES=123, PETRI_TRANSITIONS=158} [2021-03-24 18:32:43,506 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 45 predicate places. [2021-03-24 18:32:43,506 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 158 transitions, 1002 flow [2021-03-24 18:32:43,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 18:32:43,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:43,506 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, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:43,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 18:32:43,507 INFO L428 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1110587337, now seen corresponding path program 1 times [2021-03-24 18:32:43,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:43,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135798375] [2021-03-24 18:32:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:43,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:43,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:43,553 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:43,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:43,559 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:43,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:43,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:43,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:43,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:43,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:43,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:43,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:43,602 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 18:32:43,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135798375] [2021-03-24 18:32:43,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:43,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 18:32:43,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005725362] [2021-03-24 18:32:43,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 18:32:43,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:43,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 18:32:43,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-24 18:32:43,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 260 [2021-03-24 18:32:43,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 158 transitions, 1002 flow. Second operand has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:43,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:43,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 260 [2021-03-24 18:32:43,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:44,450 INFO L129 PetriNetUnfolder]: 2124/5115 cut-off events. [2021-03-24 18:32:44,450 INFO L130 PetriNetUnfolder]: For 14289/14471 co-relation queries the response was YES. [2021-03-24 18:32:44,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17625 conditions, 5115 events. 2124/5115 cut-off events. For 14289/14471 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 47377 event pairs, 210 based on Foata normal form. 86/5042 useless extension candidates. Maximal degree in co-relation 16819. Up to 1323 conditions per place. [2021-03-24 18:32:44,474 INFO L132 encePairwiseOnDemand]: 240/260 looper letters, 167 selfloop transitions, 60 changer transitions 60/342 dead transitions. [2021-03-24 18:32:44,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 342 transitions, 2952 flow [2021-03-24 18:32:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 18:32:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 18:32:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2490 transitions. [2021-03-24 18:32:44,479 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6840659340659341 [2021-03-24 18:32:44,479 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2490 transitions. [2021-03-24 18:32:44,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2490 transitions. [2021-03-24 18:32:44,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:44,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2490 transitions. [2021-03-24 18:32:44,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 177.85714285714286) internal successors, (2490), 14 states have internal predecessors, (2490), 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 18:32:44,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 260.0) internal successors, (3900), 15 states have internal predecessors, (3900), 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 18:32:44,487 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 260.0) internal successors, (3900), 15 states have internal predecessors, (3900), 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 18:32:44,487 INFO L185 Difference]: Start difference. First operand has 123 places, 158 transitions, 1002 flow. Second operand 14 states and 2490 transitions. [2021-03-24 18:32:44,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 342 transitions, 2952 flow [2021-03-24 18:32:44,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 342 transitions, 2949 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:44,533 INFO L241 Difference]: Finished difference. Result has 143 places, 196 transitions, 1609 flow [2021-03-24 18:32:44,533 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1609, PETRI_PLACES=143, PETRI_TRANSITIONS=196} [2021-03-24 18:32:44,533 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 65 predicate places. [2021-03-24 18:32:44,533 INFO L480 AbstractCegarLoop]: Abstraction has has 143 places, 196 transitions, 1609 flow [2021-03-24 18:32:44,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:44,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:44,534 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, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:44,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 18:32:44,534 INFO L428 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:44,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2071074491, now seen corresponding path program 2 times [2021-03-24 18:32:44,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:44,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808735874] [2021-03-24 18:32:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:44,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:44,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:44,559 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:44,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:44,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:44,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:44,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:44,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:44,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:44,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:44,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:44,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:44,606 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 18:32:44,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808735874] [2021-03-24 18:32:44,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:44,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 18:32:44,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90397632] [2021-03-24 18:32:44,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 18:32:44,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:44,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 18:32:44,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-24 18:32:44,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 260 [2021-03-24 18:32:44,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 196 transitions, 1609 flow. Second operand has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:44,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:44,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 260 [2021-03-24 18:32:44,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:45,470 INFO L129 PetriNetUnfolder]: 2106/5231 cut-off events. [2021-03-24 18:32:45,470 INFO L130 PetriNetUnfolder]: For 25159/25481 co-relation queries the response was YES. [2021-03-24 18:32:45,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21379 conditions, 5231 events. 2106/5231 cut-off events. For 25159/25481 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 49692 event pairs, 173 based on Foata normal form. 153/5209 useless extension candidates. Maximal degree in co-relation 20558. Up to 972 conditions per place. [2021-03-24 18:32:45,502 INFO L132 encePairwiseOnDemand]: 241/260 looper letters, 174 selfloop transitions, 99 changer transitions 53/380 dead transitions. [2021-03-24 18:32:45,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 380 transitions, 3952 flow [2021-03-24 18:32:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-24 18:32:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-24 18:32:45,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2834 transitions. [2021-03-24 18:32:45,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.68125 [2021-03-24 18:32:45,507 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2834 transitions. [2021-03-24 18:32:45,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2834 transitions. [2021-03-24 18:32:45,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:45,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2834 transitions. [2021-03-24 18:32:45,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 177.125) internal successors, (2834), 16 states have internal predecessors, (2834), 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 18:32:45,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 260.0) internal successors, (4420), 17 states have internal predecessors, (4420), 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 18:32:45,516 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 260.0) internal successors, (4420), 17 states have internal predecessors, (4420), 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 18:32:45,516 INFO L185 Difference]: Start difference. First operand has 143 places, 196 transitions, 1609 flow. Second operand 16 states and 2834 transitions. [2021-03-24 18:32:45,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 380 transitions, 3952 flow [2021-03-24 18:32:45,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 380 transitions, 3899 flow, removed 26 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:45,601 INFO L241 Difference]: Finished difference. Result has 166 places, 239 transitions, 2398 flow [2021-03-24 18:32:45,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1580, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2398, PETRI_PLACES=166, PETRI_TRANSITIONS=239} [2021-03-24 18:32:45,602 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 88 predicate places. [2021-03-24 18:32:45,602 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 239 transitions, 2398 flow [2021-03-24 18:32:45,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:45,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:45,602 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, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:45,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 18:32:45,602 INFO L428 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash 807304845, now seen corresponding path program 3 times [2021-03-24 18:32:45,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:45,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975609281] [2021-03-24 18:32:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:45,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:45,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:45,626 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:45,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:45,631 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:45,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:45,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:45,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:45,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:45,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:45,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:45,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:45,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:45,668 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 18:32:45,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975609281] [2021-03-24 18:32:45,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:45,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 18:32:45,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255630548] [2021-03-24 18:32:45,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 18:32:45,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:45,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 18:32:45,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-24 18:32:45,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 260 [2021-03-24 18:32:45,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 239 transitions, 2398 flow. Second operand has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:45,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:45,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 260 [2021-03-24 18:32:45,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:46,469 INFO L129 PetriNetUnfolder]: 1771/4865 cut-off events. [2021-03-24 18:32:46,469 INFO L130 PetriNetUnfolder]: For 34592/35034 co-relation queries the response was YES. [2021-03-24 18:32:46,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21309 conditions, 4865 events. 1771/4865 cut-off events. For 34592/35034 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 47659 event pairs, 151 based on Foata normal form. 224/4918 useless extension candidates. Maximal degree in co-relation 20523. Up to 624 conditions per place. [2021-03-24 18:32:46,501 INFO L132 encePairwiseOnDemand]: 239/260 looper letters, 202 selfloop transitions, 101 changer transitions 52/407 dead transitions. [2021-03-24 18:32:46,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 407 transitions, 4831 flow [2021-03-24 18:32:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 18:32:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 18:32:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2682 transitions. [2021-03-24 18:32:46,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6876923076923077 [2021-03-24 18:32:46,505 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2682 transitions. [2021-03-24 18:32:46,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2682 transitions. [2021-03-24 18:32:46,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:46,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2682 transitions. [2021-03-24 18:32:46,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 178.8) internal successors, (2682), 15 states have internal predecessors, (2682), 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 18:32:46,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 260.0) internal successors, (4160), 16 states have internal predecessors, (4160), 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 18:32:46,514 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 260.0) internal successors, (4160), 16 states have internal predecessors, (4160), 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 18:32:46,514 INFO L185 Difference]: Start difference. First operand has 166 places, 239 transitions, 2398 flow. Second operand 15 states and 2682 transitions. [2021-03-24 18:32:46,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 407 transitions, 4831 flow [2021-03-24 18:32:46,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 407 transitions, 4740 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-03-24 18:32:46,654 INFO L241 Difference]: Finished difference. Result has 184 places, 257 transitions, 2985 flow [2021-03-24 18:32:46,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=2305, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2985, PETRI_PLACES=184, PETRI_TRANSITIONS=257} [2021-03-24 18:32:46,654 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 106 predicate places. [2021-03-24 18:32:46,654 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 257 transitions, 2985 flow [2021-03-24 18:32:46,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:46,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:46,654 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:46,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 18:32:46,655 INFO L428 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:46,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1293548933, now seen corresponding path program 1 times [2021-03-24 18:32:46,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:46,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405456603] [2021-03-24 18:32:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:46,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:46,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:46,684 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:46,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:46,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:46,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:46,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:46,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:46,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:46,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:46,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:46,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:46,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:46,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405456603] [2021-03-24 18:32:46,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:46,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 18:32:46,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548515148] [2021-03-24 18:32:46,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 18:32:46,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:46,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 18:32:46,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-24 18:32:46,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 260 [2021-03-24 18:32:46,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 257 transitions, 2985 flow. Second operand has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:46,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:46,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 260 [2021-03-24 18:32:46,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:47,623 INFO L129 PetriNetUnfolder]: 1950/5114 cut-off events. [2021-03-24 18:32:47,623 INFO L130 PetriNetUnfolder]: For 46489/46816 co-relation queries the response was YES. [2021-03-24 18:32:47,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23431 conditions, 5114 events. 1950/5114 cut-off events. For 46489/46816 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 49100 event pairs, 86 based on Foata normal form. 195/5152 useless extension candidates. Maximal degree in co-relation 22648. Up to 644 conditions per place. [2021-03-24 18:32:47,651 INFO L132 encePairwiseOnDemand]: 239/260 looper letters, 135 selfloop transitions, 90 changer transitions 167/433 dead transitions. [2021-03-24 18:32:47,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 433 transitions, 5802 flow [2021-03-24 18:32:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 18:32:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 18:32:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2679 transitions. [2021-03-24 18:32:47,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.686923076923077 [2021-03-24 18:32:47,654 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2679 transitions. [2021-03-24 18:32:47,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2679 transitions. [2021-03-24 18:32:47,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:47,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2679 transitions. [2021-03-24 18:32:47,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 178.6) internal successors, (2679), 15 states have internal predecessors, (2679), 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 18:32:47,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 260.0) internal successors, (4160), 16 states have internal predecessors, (4160), 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 18:32:47,662 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 260.0) internal successors, (4160), 16 states have internal predecessors, (4160), 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 18:32:47,662 INFO L185 Difference]: Start difference. First operand has 184 places, 257 transitions, 2985 flow. Second operand 15 states and 2679 transitions. [2021-03-24 18:32:47,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 433 transitions, 5802 flow [2021-03-24 18:32:47,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 433 transitions, 5499 flow, removed 95 selfloop flow, removed 6 redundant places. [2021-03-24 18:32:47,952 INFO L241 Difference]: Finished difference. Result has 200 places, 214 transitions, 2673 flow [2021-03-24 18:32:47,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=2789, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2673, PETRI_PLACES=200, PETRI_TRANSITIONS=214} [2021-03-24 18:32:47,952 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 122 predicate places. [2021-03-24 18:32:47,952 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 214 transitions, 2673 flow [2021-03-24 18:32:47,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:47,953 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:47,953 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:47,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 18:32:47,953 INFO L428 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:47,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:47,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1654990529, now seen corresponding path program 1 times [2021-03-24 18:32:47,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:47,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970928516] [2021-03-24 18:32:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:47,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,000 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:48,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:48,005 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-03-24 18:32:48,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:48,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 18:32:48,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:48,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:48,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:48,043 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 18:32:48,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970928516] [2021-03-24 18:32:48,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:48,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 18:32:48,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846909189] [2021-03-24 18:32:48,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 18:32:48,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:48,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 18:32:48,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-24 18:32:48,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 260 [2021-03-24 18:32:48,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 214 transitions, 2673 flow. Second operand has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:48,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:48,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 260 [2021-03-24 18:32:48,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:48,615 INFO L129 PetriNetUnfolder]: 639/1842 cut-off events. [2021-03-24 18:32:48,615 INFO L130 PetriNetUnfolder]: For 22530/22627 co-relation queries the response was YES. [2021-03-24 18:32:48,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9810 conditions, 1842 events. 639/1842 cut-off events. For 22530/22627 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15201 event pairs, 26 based on Foata normal form. 51/1831 useless extension candidates. Maximal degree in co-relation 9658. Up to 322 conditions per place. [2021-03-24 18:32:48,630 INFO L132 encePairwiseOnDemand]: 243/260 looper letters, 124 selfloop transitions, 101 changer transitions 22/288 dead transitions. [2021-03-24 18:32:48,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 288 transitions, 3917 flow [2021-03-24 18:32:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 18:32:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 18:32:48,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2950 transitions. [2021-03-24 18:32:48,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.667420814479638 [2021-03-24 18:32:48,633 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2950 transitions. [2021-03-24 18:32:48,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2950 transitions. [2021-03-24 18:32:48,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:48,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2950 transitions. [2021-03-24 18:32:48,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 173.52941176470588) internal successors, (2950), 17 states have internal predecessors, (2950), 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 18:32:48,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 260.0) internal successors, (4680), 18 states have internal predecessors, (4680), 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 18:32:48,640 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 260.0) internal successors, (4680), 18 states have internal predecessors, (4680), 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 18:32:48,640 INFO L185 Difference]: Start difference. First operand has 200 places, 214 transitions, 2673 flow. Second operand 17 states and 2950 transitions. [2021-03-24 18:32:48,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 288 transitions, 3917 flow [2021-03-24 18:32:48,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 288 transitions, 3711 flow, removed 93 selfloop flow, removed 6 redundant places. [2021-03-24 18:32:48,720 INFO L241 Difference]: Finished difference. Result has 207 places, 213 transitions, 2796 flow [2021-03-24 18:32:48,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2796, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2021-03-24 18:32:48,720 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 129 predicate places. [2021-03-24 18:32:48,720 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 2796 flow [2021-03-24 18:32:48,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 167.6) internal successors, (1676), 10 states have internal predecessors, (1676), 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 18:32:48,721 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:48,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:48,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 18:32:48,721 INFO L428 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:48,722 INFO L82 PathProgramCache]: Analyzing trace with hash -48982504, now seen corresponding path program 1 times [2021-03-24 18:32:48,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:48,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531599323] [2021-03-24 18:32:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:48,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:48,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:48,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:48,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:48,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:48,779 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 18:32:48,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531599323] [2021-03-24 18:32:48,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:48,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:48,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383429105] [2021-03-24 18:32:48,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:48,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:48,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:48,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:48,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:48,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 2796 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:48,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:48,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:48,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:49,012 INFO L129 PetriNetUnfolder]: 333/1237 cut-off events. [2021-03-24 18:32:49,012 INFO L130 PetriNetUnfolder]: For 13031/13134 co-relation queries the response was YES. [2021-03-24 18:32:49,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6172 conditions, 1237 events. 333/1237 cut-off events. For 13031/13134 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9943 event pairs, 9 based on Foata normal form. 33/1226 useless extension candidates. Maximal degree in co-relation 6055. Up to 176 conditions per place. [2021-03-24 18:32:49,020 INFO L132 encePairwiseOnDemand]: 251/260 looper letters, 77 selfloop transitions, 37 changer transitions 55/256 dead transitions. [2021-03-24 18:32:49,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 256 transitions, 3503 flow [2021-03-24 18:32:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 18:32:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 18:32:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2051 transitions. [2021-03-24 18:32:49,023 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7888461538461539 [2021-03-24 18:32:49,023 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2051 transitions. [2021-03-24 18:32:49,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2051 transitions. [2021-03-24 18:32:49,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:49,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2051 transitions. [2021-03-24 18:32:49,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.1) internal successors, (2051), 10 states have internal predecessors, (2051), 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 18:32:49,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:49,027 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:49,027 INFO L185 Difference]: Start difference. First operand has 207 places, 213 transitions, 2796 flow. Second operand 10 states and 2051 transitions. [2021-03-24 18:32:49,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 256 transitions, 3503 flow [2021-03-24 18:32:49,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 256 transitions, 3221 flow, removed 29 selfloop flow, removed 15 redundant places. [2021-03-24 18:32:49,079 INFO L241 Difference]: Finished difference. Result has 201 places, 172 transitions, 1956 flow [2021-03-24 18:32:49,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=2539, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1956, PETRI_PLACES=201, PETRI_TRANSITIONS=172} [2021-03-24 18:32:49,079 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 123 predicate places. [2021-03-24 18:32:49,079 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 172 transitions, 1956 flow [2021-03-24 18:32:49,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:49,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:49,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 18:32:49,080 INFO L428 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:49,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1574025452, now seen corresponding path program 2 times [2021-03-24 18:32:49,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:49,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545857633] [2021-03-24 18:32:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:49,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,126 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 18:32:49,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545857633] [2021-03-24 18:32:49,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:49,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:49,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498597305] [2021-03-24 18:32:49,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:49,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:49,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:49,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:49,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:49,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 172 transitions, 1956 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:49,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:49,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:49,340 INFO L129 PetriNetUnfolder]: 293/983 cut-off events. [2021-03-24 18:32:49,340 INFO L130 PetriNetUnfolder]: For 8601/8643 co-relation queries the response was YES. [2021-03-24 18:32:49,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4733 conditions, 983 events. 293/983 cut-off events. For 8601/8643 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 6960 event pairs, 13 based on Foata normal form. 29/969 useless extension candidates. Maximal degree in co-relation 4676. Up to 125 conditions per place. [2021-03-24 18:32:49,346 INFO L132 encePairwiseOnDemand]: 249/260 looper letters, 76 selfloop transitions, 47 changer transitions 15/225 dead transitions. [2021-03-24 18:32:49,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 225 transitions, 2812 flow [2021-03-24 18:32:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 18:32:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 18:32:49,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2257 transitions. [2021-03-24 18:32:49,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7891608391608391 [2021-03-24 18:32:49,349 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2257 transitions. [2021-03-24 18:32:49,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2257 transitions. [2021-03-24 18:32:49,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:49,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2257 transitions. [2021-03-24 18:32:49,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 205.1818181818182) internal successors, (2257), 11 states have internal predecessors, (2257), 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 18:32:49,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 260.0) internal successors, (3120), 12 states have internal predecessors, (3120), 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 18:32:49,353 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 260.0) internal successors, (3120), 12 states have internal predecessors, (3120), 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 18:32:49,353 INFO L185 Difference]: Start difference. First operand has 201 places, 172 transitions, 1956 flow. Second operand 11 states and 2257 transitions. [2021-03-24 18:32:49,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 225 transitions, 2812 flow [2021-03-24 18:32:49,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 225 transitions, 2391 flow, removed 26 selfloop flow, removed 24 redundant places. [2021-03-24 18:32:49,381 INFO L241 Difference]: Finished difference. Result has 189 places, 182 transitions, 1890 flow [2021-03-24 18:32:49,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1890, PETRI_PLACES=189, PETRI_TRANSITIONS=182} [2021-03-24 18:32:49,381 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 111 predicate places. [2021-03-24 18:32:49,381 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 182 transitions, 1890 flow [2021-03-24 18:32:49,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:49,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:49,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 18:32:49,382 INFO L428 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1537959942, now seen corresponding path program 3 times [2021-03-24 18:32:49,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:49,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496492203] [2021-03-24 18:32:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:49,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496492203] [2021-03-24 18:32:49,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:49,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:49,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327027519] [2021-03-24 18:32:49,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:49,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:49,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:49,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:49,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:49,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 182 transitions, 1890 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:49,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:49,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:49,610 INFO L129 PetriNetUnfolder]: 317/1070 cut-off events. [2021-03-24 18:32:49,610 INFO L130 PetriNetUnfolder]: For 6969/7025 co-relation queries the response was YES. [2021-03-24 18:32:49,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4679 conditions, 1070 events. 317/1070 cut-off events. For 6969/7025 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7697 event pairs, 24 based on Foata normal form. 34/1056 useless extension candidates. Maximal degree in co-relation 4629. Up to 138 conditions per place. [2021-03-24 18:32:49,617 INFO L132 encePairwiseOnDemand]: 250/260 looper letters, 76 selfloop transitions, 47 changer transitions 22/232 dead transitions. [2021-03-24 18:32:49,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 232 transitions, 2681 flow [2021-03-24 18:32:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 18:32:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 18:32:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2054 transitions. [2021-03-24 18:32:49,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.79 [2021-03-24 18:32:49,619 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2054 transitions. [2021-03-24 18:32:49,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2054 transitions. [2021-03-24 18:32:49,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:49,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2054 transitions. [2021-03-24 18:32:49,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.4) internal successors, (2054), 10 states have internal predecessors, (2054), 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 18:32:49,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:49,623 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:49,623 INFO L185 Difference]: Start difference. First operand has 189 places, 182 transitions, 1890 flow. Second operand 10 states and 2054 transitions. [2021-03-24 18:32:49,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 232 transitions, 2681 flow [2021-03-24 18:32:49,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 232 transitions, 2608 flow, removed 23 selfloop flow, removed 2 redundant places. [2021-03-24 18:32:49,648 INFO L241 Difference]: Finished difference. Result has 199 places, 186 transitions, 2019 flow [2021-03-24 18:32:49,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1827, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2019, PETRI_PLACES=199, PETRI_TRANSITIONS=186} [2021-03-24 18:32:49,648 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 121 predicate places. [2021-03-24 18:32:49,648 INFO L480 AbstractCegarLoop]: Abstraction has has 199 places, 186 transitions, 2019 flow [2021-03-24 18:32:49,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:49,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:49,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 18:32:49,649 INFO L428 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:49,649 INFO L82 PathProgramCache]: Analyzing trace with hash -99365870, now seen corresponding path program 4 times [2021-03-24 18:32:49,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:49,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873403030] [2021-03-24 18:32:49,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:49,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,670 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 18:32:49,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873403030] [2021-03-24 18:32:49,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:49,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:32:49,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632767425] [2021-03-24 18:32:49,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:32:49,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:49,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:32:49,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:32:49,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 260 [2021-03-24 18:32:49,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 186 transitions, 2019 flow. Second operand has 4 states, 4 states have (on average 224.5) internal successors, (898), 4 states have internal predecessors, (898), 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 18:32:49,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:49,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 260 [2021-03-24 18:32:49,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:49,805 INFO L129 PetriNetUnfolder]: 230/971 cut-off events. [2021-03-24 18:32:49,805 INFO L130 PetriNetUnfolder]: For 6411/6480 co-relation queries the response was YES. [2021-03-24 18:32:49,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4063 conditions, 971 events. 230/971 cut-off events. For 6411/6480 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7440 event pairs, 14 based on Foata normal form. 37/966 useless extension candidates. Maximal degree in co-relation 4010. Up to 105 conditions per place. [2021-03-24 18:32:49,810 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 46 selfloop transitions, 13 changer transitions 2/197 dead transitions. [2021-03-24 18:32:49,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 197 transitions, 2255 flow [2021-03-24 18:32:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 18:32:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 18:32:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 910 transitions. [2021-03-24 18:32:49,812 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-03-24 18:32:49,812 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 910 transitions. [2021-03-24 18:32:49,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 910 transitions. [2021-03-24 18:32:49,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:49,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 910 transitions. [2021-03-24 18:32:49,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 227.5) internal successors, (910), 4 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:49,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 18:32:49,814 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 18:32:49,814 INFO L185 Difference]: Start difference. First operand has 199 places, 186 transitions, 2019 flow. Second operand 4 states and 910 transitions. [2021-03-24 18:32:49,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 197 transitions, 2255 flow [2021-03-24 18:32:49,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 197 transitions, 2136 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-24 18:32:49,836 INFO L241 Difference]: Finished difference. Result has 196 places, 187 transitions, 1965 flow [2021-03-24 18:32:49,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1902, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1965, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2021-03-24 18:32:49,836 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 118 predicate places. [2021-03-24 18:32:49,836 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 1965 flow [2021-03-24 18:32:49,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 224.5) internal successors, (898), 4 states have internal predecessors, (898), 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 18:32:49,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:49,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:49,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 18:32:49,837 INFO L428 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:49,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1729491772, now seen corresponding path program 5 times [2021-03-24 18:32:49,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:49,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896985654] [2021-03-24 18:32:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:49,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:49,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:49,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:49,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:49,880 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 18:32:49,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896985654] [2021-03-24 18:32:49,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:49,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:49,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891612038] [2021-03-24 18:32:49,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:49,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:49,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:49,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:49,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:49,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 1965 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:49,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:49,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:49,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:50,093 INFO L129 PetriNetUnfolder]: 318/1115 cut-off events. [2021-03-24 18:32:50,094 INFO L130 PetriNetUnfolder]: For 8394/8504 co-relation queries the response was YES. [2021-03-24 18:32:50,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4975 conditions, 1115 events. 318/1115 cut-off events. For 8394/8504 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8208 event pairs, 27 based on Foata normal form. 71/1136 useless extension candidates. Maximal degree in co-relation 4921. Up to 134 conditions per place. [2021-03-24 18:32:50,100 INFO L132 encePairwiseOnDemand]: 250/260 looper letters, 72 selfloop transitions, 50 changer transitions 31/240 dead transitions. [2021-03-24 18:32:50,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 240 transitions, 2909 flow [2021-03-24 18:32:50,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 18:32:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 18:32:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2454 transitions. [2021-03-24 18:32:50,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865384615384615 [2021-03-24 18:32:50,102 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2454 transitions. [2021-03-24 18:32:50,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2454 transitions. [2021-03-24 18:32:50,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:50,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2454 transitions. [2021-03-24 18:32:50,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 204.5) internal successors, (2454), 12 states have internal predecessors, (2454), 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 18:32:50,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 260.0) internal successors, (3380), 13 states have internal predecessors, (3380), 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 18:32:50,107 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 260.0) internal successors, (3380), 13 states have internal predecessors, (3380), 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 18:32:50,107 INFO L185 Difference]: Start difference. First operand has 196 places, 187 transitions, 1965 flow. Second operand 12 states and 2454 transitions. [2021-03-24 18:32:50,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 240 transitions, 2909 flow [2021-03-24 18:32:50,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 240 transitions, 2859 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-24 18:32:50,133 INFO L241 Difference]: Finished difference. Result has 207 places, 187 transitions, 2101 flow [2021-03-24 18:32:50,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2101, PETRI_PLACES=207, PETRI_TRANSITIONS=187} [2021-03-24 18:32:50,134 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 129 predicate places. [2021-03-24 18:32:50,134 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 187 transitions, 2101 flow [2021-03-24 18:32:50,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:50,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:50,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 18:32:50,134 INFO L428 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:50,135 INFO L82 PathProgramCache]: Analyzing trace with hash -17282026, now seen corresponding path program 1 times [2021-03-24 18:32:50,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:50,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563464424] [2021-03-24 18:32:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:50,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,174 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 18:32:50,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563464424] [2021-03-24 18:32:50,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:50,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:50,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596188494] [2021-03-24 18:32:50,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:50,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:50,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:50,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 187 transitions, 2101 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:50,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:50,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:50,348 INFO L129 PetriNetUnfolder]: 256/1025 cut-off events. [2021-03-24 18:32:50,348 INFO L130 PetriNetUnfolder]: For 7799/7898 co-relation queries the response was YES. [2021-03-24 18:32:50,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4568 conditions, 1025 events. 256/1025 cut-off events. For 7799/7898 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7659 event pairs, 12 based on Foata normal form. 54/1030 useless extension candidates. Maximal degree in co-relation 4512. Up to 148 conditions per place. [2021-03-24 18:32:50,354 INFO L132 encePairwiseOnDemand]: 251/260 looper letters, 64 selfloop transitions, 31 changer transitions 49/217 dead transitions. [2021-03-24 18:32:50,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 217 transitions, 2670 flow [2021-03-24 18:32:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 18:32:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 18:32:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2036 transitions. [2021-03-24 18:32:50,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7830769230769231 [2021-03-24 18:32:50,355 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2036 transitions. [2021-03-24 18:32:50,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2036 transitions. [2021-03-24 18:32:50,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:50,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2036 transitions. [2021-03-24 18:32:50,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 203.6) internal successors, (2036), 10 states have internal predecessors, (2036), 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 18:32:50,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,359 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,359 INFO L185 Difference]: Start difference. First operand has 207 places, 187 transitions, 2101 flow. Second operand 10 states and 2036 transitions. [2021-03-24 18:32:50,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 217 transitions, 2670 flow [2021-03-24 18:32:50,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 217 transitions, 2560 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-03-24 18:32:50,386 INFO L241 Difference]: Finished difference. Result has 208 places, 151 transitions, 1516 flow [2021-03-24 18:32:50,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1516, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2021-03-24 18:32:50,387 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 130 predicate places. [2021-03-24 18:32:50,387 INFO L480 AbstractCegarLoop]: Abstraction has has 208 places, 151 transitions, 1516 flow [2021-03-24 18:32:50,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:50,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:50,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 18:32:50,387 INFO L428 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:50,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1623484738, now seen corresponding path program 2 times [2021-03-24 18:32:50,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:50,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705241070] [2021-03-24 18:32:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:50,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:50,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705241070] [2021-03-24 18:32:50,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:50,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:50,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242381063] [2021-03-24 18:32:50,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:50,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:50,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:50,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:50,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:50,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 151 transitions, 1516 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:50,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:50,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:50,594 INFO L129 PetriNetUnfolder]: 183/767 cut-off events. [2021-03-24 18:32:50,594 INFO L130 PetriNetUnfolder]: For 4769/4841 co-relation queries the response was YES. [2021-03-24 18:32:50,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3195 conditions, 767 events. 183/767 cut-off events. For 4769/4841 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5153 event pairs, 17 based on Foata normal form. 59/777 useless extension candidates. Maximal degree in co-relation 3140. Up to 85 conditions per place. [2021-03-24 18:32:50,598 INFO L132 encePairwiseOnDemand]: 249/260 looper letters, 65 selfloop transitions, 35 changer transitions 23/187 dead transitions. [2021-03-24 18:32:50,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 187 transitions, 2193 flow [2021-03-24 18:32:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 18:32:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 18:32:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2043 transitions. [2021-03-24 18:32:50,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7857692307692308 [2021-03-24 18:32:50,600 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2043 transitions. [2021-03-24 18:32:50,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2043 transitions. [2021-03-24 18:32:50,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:50,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2043 transitions. [2021-03-24 18:32:50,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 204.3) internal successors, (2043), 10 states have internal predecessors, (2043), 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 18:32:50,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,604 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,604 INFO L185 Difference]: Start difference. First operand has 208 places, 151 transitions, 1516 flow. Second operand 10 states and 2043 transitions. [2021-03-24 18:32:50,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 187 transitions, 2193 flow [2021-03-24 18:32:50,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 187 transitions, 1846 flow, removed 21 selfloop flow, removed 31 redundant places. [2021-03-24 18:32:50,619 INFO L241 Difference]: Finished difference. Result has 186 places, 144 transitions, 1336 flow [2021-03-24 18:32:50,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1336, PETRI_PLACES=186, PETRI_TRANSITIONS=144} [2021-03-24 18:32:50,619 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 108 predicate places. [2021-03-24 18:32:50,619 INFO L480 AbstractCegarLoop]: Abstraction has has 186 places, 144 transitions, 1336 flow [2021-03-24 18:32:50,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:50,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:50,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 18:32:50,620 INFO L428 AbstractCegarLoop]: === Iteration 25 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:50,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1895255122, now seen corresponding path program 3 times [2021-03-24 18:32:50,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:50,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061762211] [2021-03-24 18:32:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:50,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,662 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 18:32:50,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061762211] [2021-03-24 18:32:50,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:50,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:50,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835171149] [2021-03-24 18:32:50,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:50,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:50,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:50,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:50,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:50,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 144 transitions, 1336 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:50,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:50,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:50,791 INFO L129 PetriNetUnfolder]: 170/699 cut-off events. [2021-03-24 18:32:50,791 INFO L130 PetriNetUnfolder]: For 4028/4122 co-relation queries the response was YES. [2021-03-24 18:32:50,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 699 events. 170/699 cut-off events. For 4028/4122 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4506 event pairs, 25 based on Foata normal form. 66/712 useless extension candidates. Maximal degree in co-relation 2673. Up to 99 conditions per place. [2021-03-24 18:32:50,813 INFO L132 encePairwiseOnDemand]: 250/260 looper letters, 65 selfloop transitions, 34 changer transitions 11/173 dead transitions. [2021-03-24 18:32:50,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 173 transitions, 1908 flow [2021-03-24 18:32:50,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 18:32:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 18:32:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2032 transitions. [2021-03-24 18:32:50,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7815384615384615 [2021-03-24 18:32:50,815 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2032 transitions. [2021-03-24 18:32:50,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2032 transitions. [2021-03-24 18:32:50,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:50,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2032 transitions. [2021-03-24 18:32:50,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 203.2) internal successors, (2032), 10 states have internal predecessors, (2032), 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 18:32:50,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,818 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 260.0) internal successors, (2860), 11 states have internal predecessors, (2860), 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 18:32:50,818 INFO L185 Difference]: Start difference. First operand has 186 places, 144 transitions, 1336 flow. Second operand 10 states and 2032 transitions. [2021-03-24 18:32:50,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 173 transitions, 1908 flow [2021-03-24 18:32:50,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 173 transitions, 1830 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-24 18:32:50,829 INFO L241 Difference]: Finished difference. Result has 191 places, 148 transitions, 1449 flow [2021-03-24 18:32:50,829 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1269, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1449, PETRI_PLACES=191, PETRI_TRANSITIONS=148} [2021-03-24 18:32:50,829 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 113 predicate places. [2021-03-24 18:32:50,829 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 148 transitions, 1449 flow [2021-03-24 18:32:50,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:50,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:50,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 18:32:50,830 INFO L428 AbstractCegarLoop]: === Iteration 26 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:50,830 INFO L82 PathProgramCache]: Analyzing trace with hash 305789418, now seen corresponding path program 4 times [2021-03-24 18:32:50,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:50,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631705137] [2021-03-24 18:32:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,850 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 18:32:50,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631705137] [2021-03-24 18:32:50,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:32:50,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175803016] [2021-03-24 18:32:50,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:32:50,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:50,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:32:50,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:32:50,851 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 260 [2021-03-24 18:32:50,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 148 transitions, 1449 flow. Second operand has 4 states, 4 states have (on average 224.5) internal successors, (898), 4 states have internal predecessors, (898), 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 18:32:50,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:50,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 260 [2021-03-24 18:32:50,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:50,918 INFO L129 PetriNetUnfolder]: 133/631 cut-off events. [2021-03-24 18:32:50,918 INFO L130 PetriNetUnfolder]: For 3821/3900 co-relation queries the response was YES. [2021-03-24 18:32:50,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 631 events. 133/631 cut-off events. For 3821/3900 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4105 event pairs, 15 based on Foata normal form. 57/646 useless extension candidates. Maximal degree in co-relation 2337. Up to 87 conditions per place. [2021-03-24 18:32:50,922 INFO L132 encePairwiseOnDemand]: 257/260 looper letters, 53 selfloop transitions, 15 changer transitions 2/157 dead transitions. [2021-03-24 18:32:50,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 157 transitions, 1688 flow [2021-03-24 18:32:50,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 18:32:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 18:32:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 910 transitions. [2021-03-24 18:32:50,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-03-24 18:32:50,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 910 transitions. [2021-03-24 18:32:50,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 910 transitions. [2021-03-24 18:32:50,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:50,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 910 transitions. [2021-03-24 18:32:50,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 227.5) internal successors, (910), 4 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:50,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 18:32:50,925 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 18:32:50,925 INFO L185 Difference]: Start difference. First operand has 191 places, 148 transitions, 1449 flow. Second operand 4 states and 910 transitions. [2021-03-24 18:32:50,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 157 transitions, 1688 flow [2021-03-24 18:32:50,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 157 transitions, 1634 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-24 18:32:50,935 INFO L241 Difference]: Finished difference. Result has 190 places, 147 transitions, 1450 flow [2021-03-24 18:32:50,936 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1450, PETRI_PLACES=190, PETRI_TRANSITIONS=147} [2021-03-24 18:32:50,936 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 112 predicate places. [2021-03-24 18:32:50,936 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 147 transitions, 1450 flow [2021-03-24 18:32:50,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 224.5) internal successors, (898), 4 states have internal predecessors, (898), 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 18:32:50,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:50,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:50,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 18:32:50,936 INFO L428 AbstractCegarLoop]: === Iteration 27 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:50,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:50,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1886083312, now seen corresponding path program 5 times [2021-03-24 18:32:50,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:50,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427733653] [2021-03-24 18:32:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:50,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:50,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:50,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:50,979 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 18:32:50,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427733653] [2021-03-24 18:32:50,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:50,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:50,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438069046] [2021-03-24 18:32:50,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:50,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:50,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:50,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:50,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:50,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 147 transitions, 1450 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:50,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:50,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:50,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:51,119 INFO L129 PetriNetUnfolder]: 175/693 cut-off events. [2021-03-24 18:32:51,119 INFO L130 PetriNetUnfolder]: For 5217/5346 co-relation queries the response was YES. [2021-03-24 18:32:51,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 693 events. 175/693 cut-off events. For 5217/5346 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4370 event pairs, 24 based on Foata normal form. 95/738 useless extension candidates. Maximal degree in co-relation 2792. Up to 98 conditions per place. [2021-03-24 18:32:51,123 INFO L132 encePairwiseOnDemand]: 250/260 looper letters, 62 selfloop transitions, 35 changer transitions 17/175 dead transitions. [2021-03-24 18:32:51,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 175 transitions, 2043 flow [2021-03-24 18:32:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 18:32:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 18:32:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2231 transitions. [2021-03-24 18:32:51,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7800699300699301 [2021-03-24 18:32:51,125 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2231 transitions. [2021-03-24 18:32:51,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2231 transitions. [2021-03-24 18:32:51,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:51,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2231 transitions. [2021-03-24 18:32:51,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 202.8181818181818) internal successors, (2231), 11 states have internal predecessors, (2231), 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 18:32:51,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 260.0) internal successors, (3120), 12 states have internal predecessors, (3120), 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 18:32:51,128 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 260.0) internal successors, (3120), 12 states have internal predecessors, (3120), 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 18:32:51,128 INFO L185 Difference]: Start difference. First operand has 190 places, 147 transitions, 1450 flow. Second operand 11 states and 2231 transitions. [2021-03-24 18:32:51,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 175 transitions, 2043 flow [2021-03-24 18:32:51,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 175 transitions, 2003 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-24 18:32:51,141 INFO L241 Difference]: Finished difference. Result has 197 places, 145 transitions, 1534 flow [2021-03-24 18:32:51,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1534, PETRI_PLACES=197, PETRI_TRANSITIONS=145} [2021-03-24 18:32:51,141 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 119 predicate places. [2021-03-24 18:32:51,141 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 145 transitions, 1534 flow [2021-03-24 18:32:51,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:51,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:51,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:51,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-24 18:32:51,142 INFO L428 AbstractCegarLoop]: === Iteration 28 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:51,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:51,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1565058902, now seen corresponding path program 1 times [2021-03-24 18:32:51,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:51,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253920890] [2021-03-24 18:32:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:51,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:51,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:51,188 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 18:32:51,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253920890] [2021-03-24 18:32:51,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:51,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:51,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715660634] [2021-03-24 18:32:51,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:51,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:51,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:51,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 145 transitions, 1534 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:51,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:51,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:51,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:51,292 INFO L129 PetriNetUnfolder]: 145/552 cut-off events. [2021-03-24 18:32:51,292 INFO L130 PetriNetUnfolder]: For 4451/4591 co-relation queries the response was YES. [2021-03-24 18:32:51,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 552 events. 145/552 cut-off events. For 4451/4591 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3043 event pairs, 19 based on Foata normal form. 102/611 useless extension candidates. Maximal degree in co-relation 2298. Up to 83 conditions per place. [2021-03-24 18:32:51,295 INFO L132 encePairwiseOnDemand]: 251/260 looper letters, 37 selfloop transitions, 14 changer transitions 59/159 dead transitions. [2021-03-24 18:32:51,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 159 transitions, 1889 flow [2021-03-24 18:32:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 18:32:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 18:32:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1622 transitions. [2021-03-24 18:32:51,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7798076923076923 [2021-03-24 18:32:51,298 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1622 transitions. [2021-03-24 18:32:51,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1622 transitions. [2021-03-24 18:32:51,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:51,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1622 transitions. [2021-03-24 18:32:51,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 202.75) internal successors, (1622), 8 states have internal predecessors, (1622), 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 18:32:51,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 260.0) internal successors, (2340), 9 states have internal predecessors, (2340), 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 18:32:51,301 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 260.0) internal successors, (2340), 9 states have internal predecessors, (2340), 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 18:32:51,301 INFO L185 Difference]: Start difference. First operand has 197 places, 145 transitions, 1534 flow. Second operand 8 states and 1622 transitions. [2021-03-24 18:32:51,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 159 transitions, 1889 flow [2021-03-24 18:32:51,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 159 transitions, 1761 flow, removed 15 selfloop flow, removed 14 redundant places. [2021-03-24 18:32:51,312 INFO L241 Difference]: Finished difference. Result has 187 places, 96 transitions, 836 flow [2021-03-24 18:32:51,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1408, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=836, PETRI_PLACES=187, PETRI_TRANSITIONS=96} [2021-03-24 18:32:51,312 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 109 predicate places. [2021-03-24 18:32:51,313 INFO L480 AbstractCegarLoop]: Abstraction has has 187 places, 96 transitions, 836 flow [2021-03-24 18:32:51,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:51,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:51,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:51,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-24 18:32:51,313 INFO L428 AbstractCegarLoop]: === Iteration 29 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:32:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:51,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1260978771, now seen corresponding path program 1 times [2021-03-24 18:32:51,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:51,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229833721] [2021-03-24 18:32:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:51,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:51,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 18:32:51,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:51,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:51,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:51,358 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 18:32:51,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229833721] [2021-03-24 18:32:51,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:51,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 18:32:51,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98753867] [2021-03-24 18:32:51,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 18:32:51,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:51,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 18:32:51,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-24 18:32:51,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 260 [2021-03-24 18:32:51,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 96 transitions, 836 flow. Second operand has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:51,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:51,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 260 [2021-03-24 18:32:51,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:51,432 INFO L129 PetriNetUnfolder]: 78/302 cut-off events. [2021-03-24 18:32:51,432 INFO L130 PetriNetUnfolder]: For 2057/2123 co-relation queries the response was YES. [2021-03-24 18:32:51,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 302 events. 78/302 cut-off events. For 2057/2123 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1255 event pairs, 12 based on Foata normal form. 50/325 useless extension candidates. Maximal degree in co-relation 1200. Up to 53 conditions per place. [2021-03-24 18:32:51,434 INFO L132 encePairwiseOnDemand]: 251/260 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2021-03-24 18:32:51,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 107 transitions, 1045 flow [2021-03-24 18:32:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 18:32:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 18:32:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1616 transitions. [2021-03-24 18:32:51,435 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7769230769230769 [2021-03-24 18:32:51,435 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1616 transitions. [2021-03-24 18:32:51,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1616 transitions. [2021-03-24 18:32:51,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:51,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1616 transitions. [2021-03-24 18:32:51,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 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 18:32:51,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 260.0) internal successors, (2340), 9 states have internal predecessors, (2340), 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 18:32:51,437 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 260.0) internal successors, (2340), 9 states have internal predecessors, (2340), 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 18:32:51,437 INFO L185 Difference]: Start difference. First operand has 187 places, 96 transitions, 836 flow. Second operand 8 states and 1616 transitions. [2021-03-24 18:32:51,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 107 transitions, 1045 flow [2021-03-24 18:32:51,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 107 transitions, 797 flow, removed 16 selfloop flow, removed 42 redundant places. [2021-03-24 18:32:51,442 INFO L241 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2021-03-24 18:32:51,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2021-03-24 18:32:51,442 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 56 predicate places. [2021-03-24 18:32:51,442 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2021-03-24 18:32:51,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 199.875) internal successors, (1599), 8 states have internal predecessors, (1599), 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 18:32:51,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-24 18:32:51,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 06:32:51 BasicIcfg [2021-03-24 18:32:51,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 18:32:51,445 INFO L168 Benchmark]: Toolchain (without parser) took 16445.92 ms. Allocated memory was 364.9 MB in the beginning and 977.3 MB in the end (delta: 612.4 MB). Free memory was 328.3 MB in the beginning and 566.5 MB in the end (delta: -238.2 MB). Peak memory consumption was 376.8 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 364.9 MB. Free memory was 346.4 MB in the beginning and 346.4 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.57 ms. Allocated memory is still 364.9 MB. Free memory was 328.2 MB in the beginning and 326.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 364.9 MB. Free memory was 326.3 MB in the beginning and 324.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: Boogie Preprocessor took 25.48 ms. Allocated memory is still 364.9 MB. Free memory was 324.2 MB in the beginning and 322.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: RCFGBuilder took 821.92 ms. Allocated memory is still 364.9 MB. Free memory was 322.1 MB in the beginning and 221.4 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L168 Benchmark]: TraceAbstraction took 15174.83 ms. Allocated memory was 364.9 MB in the beginning and 977.3 MB in the end (delta: 612.4 MB). Free memory was 221.4 MB in the beginning and 566.5 MB in the end (delta: -345.1 MB). Peak memory consumption was 270.4 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:51,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 364.9 MB. Free memory was 346.4 MB in the beginning and 346.4 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 363.57 ms. Allocated memory is still 364.9 MB. Free memory was 328.2 MB in the beginning and 326.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 364.9 MB. Free memory was 326.3 MB in the beginning and 324.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.48 ms. Allocated memory is still 364.9 MB. Free memory was 324.2 MB in the beginning and 322.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 821.92 ms. Allocated memory is still 364.9 MB. Free memory was 322.1 MB in the beginning and 221.4 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 15174.83 ms. Allocated memory was 364.9 MB in the beginning and 977.3 MB in the end (delta: 612.4 MB). Free memory was 221.4 MB in the beginning and 566.5 MB in the end (delta: -345.1 MB). Peak memory consumption was 270.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3523.1ms, 147 PlacesBefore, 78 PlacesAfterwards, 159 TransitionsBefore, 86 TransitionsAfterwards, 10120 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 85 TotalNumberOfCompositions, 12308 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6289, positive: 6127, positive conditional: 0, positive unconditional: 6127, negative: 162, negative conditional: 0, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4629, positive: 4545, positive conditional: 0, positive unconditional: 4545, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4629, positive: 4545, positive conditional: 0, positive unconditional: 4545, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4629, positive: 4535, positive conditional: 0, positive unconditional: 4535, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 433, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 395, negative conditional: 0, negative unconditional: 395, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6289, positive: 1582, positive conditional: 0, positive unconditional: 1582, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 4629, unknown conditional: 0, unknown unconditional: 4629] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 706, Positive conditional cache size: 0, Positive unconditional cache size: 706, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - PositiveResult [Line: 712]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 719]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 152 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 15047.1ms, OverallIterations: 29, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 9805.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3620.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 485 SDtfs, 1447 SDslu, 870 SDs, 0 SdLazy, 4159 SolverSat, 431 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1698.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1180.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2985occurred in iteration=15, InterpolantAutomatonStates: 238, 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: 48.9ms SsaConstructionTime, 247.9ms SatisfiabilityAnalysisTime, 1098.7ms InterpolantComputationTime, 952 NumberOfCodeBlocks, 952 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 923 ConstructedInterpolants, 0 QuantifiedInterpolants, 4338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...