/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 06:57:06,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 06:57:06,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 06:57:06,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 06:57:06,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 06:57:06,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 06:57:06,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 06:57:06,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 06:57:06,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 06:57:06,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 06:57:06,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 06:57:06,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 06:57:06,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 06:57:06,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 06:57:06,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 06:57:06,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 06:57:06,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 06:57:06,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 06:57:06,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 06:57:06,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 06:57:06,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 06:57:06,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 06:57:06,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 06:57:06,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 06:57:06,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 06:57:06,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 06:57:06,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 06:57:06,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 06:57:06,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 06:57:06,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 06:57:06,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 06:57:06,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 06:57:06,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 06:57:06,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 06:57:06,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 06:57:06,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 06:57:06,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 06:57:06,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 06:57:06,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 06:57:06,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 06:57:06,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 06:57:06,136 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-NoLbe.epf [2021-06-13 06:57:06,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 06:57:06,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 06:57:06,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 06:57:06,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 06:57:06,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 06:57:06,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 06:57:06,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 06:57:06,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 06:57:06,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 06:57:06,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 06:57:06,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 06:57:06,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 06:57:06,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 06:57:06,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 06:57:06,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 06:57:06,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 06:57:06,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 06:57:06,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 06:57:06,421 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 06:57:06,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-06-13 06:57:06,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b6657ec/ac37053b0dd347b9b188885b4fcc7fc5/FLAG2b9cd995c [2021-06-13 06:57:06,925 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 06:57:06,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-06-13 06:57:06,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b6657ec/ac37053b0dd347b9b188885b4fcc7fc5/FLAG2b9cd995c [2021-06-13 06:57:07,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b6657ec/ac37053b0dd347b9b188885b4fcc7fc5 [2021-06-13 06:57:07,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 06:57:07,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 06:57:07,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 06:57:07,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 06:57:07,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 06:57:07,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d16fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07, skipping insertion in model container [2021-06-13 06:57:07,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 06:57:07,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 06:57:07,700 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i[30694,30707] [2021-06-13 06:57:07,703 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i[30916,30929] [2021-06-13 06:57:07,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 06:57:07,738 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 06:57:07,772 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i[30694,30707] [2021-06-13 06:57:07,773 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i[30916,30929] [2021-06-13 06:57:07,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 06:57:07,822 INFO L208 MainTranslator]: Completed translation [2021-06-13 06:57:07,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07 WrapperNode [2021-06-13 06:57:07,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 06:57:07,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 06:57:07,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 06:57:07,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 06:57:07,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 06:57:07,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 06:57:07,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 06:57:07,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 06:57:07,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... [2021-06-13 06:57:07,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 06:57:07,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 06:57:07,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 06:57:07,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 06:57:07,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 06:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2021-06-13 06:57:07,931 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2021-06-13 06:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2021-06-13 06:57:07,932 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2021-06-13 06:57:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-13 06:57:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 06:57:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2021-06-13 06:57:07,933 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2021-06-13 06:57:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-13 06:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 06:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 06:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 06:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 06:57:07,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 06:57:07,935 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 06:57:08,724 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 06:57:08,724 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-13 06:57:08,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 06:57:08 BoogieIcfgContainer [2021-06-13 06:57:08,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 06:57:08,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 06:57:08,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 06:57:08,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 06:57:08,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 06:57:07" (1/3) ... [2021-06-13 06:57:08,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f67d85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 06:57:08, skipping insertion in model container [2021-06-13 06:57:08,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:57:07" (2/3) ... [2021-06-13 06:57:08,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f67d85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 06:57:08, skipping insertion in model container [2021-06-13 06:57:08,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 06:57:08" (3/3) ... [2021-06-13 06:57:08,731 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2021-06-13 06:57:08,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 06:57:08,736 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-13 06:57:08,736 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 06:57:08,768 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,769 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,770 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,771 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,771 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,771 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,772 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,773 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,773 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,773 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,773 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,773 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,774 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,775 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,776 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,777 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,778 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,779 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,780 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,780 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,780 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,780 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,780 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,781 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,781 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,782 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,782 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,783 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,784 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,784 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,785 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,785 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,789 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,789 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,789 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,790 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,791 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,792 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,793 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,793 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,793 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,793 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,796 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,796 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,796 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,796 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,796 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,797 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,798 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,799 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,800 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,801 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,802 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,803 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,808 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,809 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,811 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,811 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,811 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,811 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,812 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,813 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,814 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,815 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,816 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,817 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,818 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,819 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,820 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,821 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,822 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,824 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,824 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,824 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,827 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,828 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,829 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,830 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,831 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,832 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,832 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,832 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,833 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 06:57:08,846 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-13 06:57:08,860 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-13 06:57:08,871 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 06:57:08,871 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 06:57:08,871 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 06:57:08,871 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 06:57:08,871 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 06:57:08,871 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 06:57:08,871 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 06:57:08,871 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == qrcu_updater======== [2021-06-13 06:57:08,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:08,919 INFO L129 PetriNetUnfolder]: 23/192 cut-off events. [2021-06-13 06:57:08,919 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-13 06:57:08,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 192 events. 23/192 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 424 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2021-06-13 06:57:08,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:08,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 06:57:08,927 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 06:57:08,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 06:57:08,928 INFO L301 ceAbstractionStarter]: Result for error location qrcu_updater was SAFE (1/3) [2021-06-13 06:57:08,929 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-13 06:57:08,935 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 06:57:08,935 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 06:57:08,935 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 06:57:08,935 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 06:57:08,935 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 06:57:08,935 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 06:57:08,935 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 06:57:08,935 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 06:57:08,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:08,978 INFO L129 PetriNetUnfolder]: 23/192 cut-off events. [2021-06-13 06:57:08,979 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-13 06:57:08,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 192 events. 23/192 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 424 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2021-06-13 06:57:08,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:08,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 06:57:08,982 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 06:57:08,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 06:57:08,982 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/3) [2021-06-13 06:57:08,983 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-13 06:57:08,985 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 06:57:08,985 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 06:57:08,985 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 06:57:08,985 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 06:57:08,985 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 06:57:08,985 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 06:57:08,985 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 06:57:08,985 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == qrcu_updaterThread1of1ForFork0======== [2021-06-13 06:57:08,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:09,019 INFO L129 PetriNetUnfolder]: 23/192 cut-off events. [2021-06-13 06:57:09,019 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-13 06:57:09,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 192 events. 23/192 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 424 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2021-06-13 06:57:09,021 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 184 transitions, 410 flow [2021-06-13 06:57:09,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 168 transitions, 363 flow [2021-06-13 06:57:09,037 INFO L129 PetriNetUnfolder]: 10/123 cut-off events. [2021-06-13 06:57:09,037 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-13 06:57:09,037 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:09,038 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:09,038 INFO L430 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:09,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:09,041 INFO L82 PathProgramCache]: Analyzing trace with hash -234683721, now seen corresponding path program 1 times [2021-06-13 06:57:09,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:09,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191059154] [2021-06-13 06:57:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:09,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:09,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 06:57:09,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:09,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:09,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191059154] [2021-06-13 06:57:09,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191059154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:09,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:09,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 06:57:09,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032784951] [2021-06-13 06:57:09,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 06:57:09,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:09,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 06:57:09,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 06:57:09,284 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 184 [2021-06-13 06:57:09,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 168 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:09,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 184 [2021-06-13 06:57:09,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:09,340 INFO L129 PetriNetUnfolder]: 16/199 cut-off events. [2021-06-13 06:57:09,340 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-06-13 06:57:09,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 199 events. 16/199 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 495 event pairs, 0 based on Foata normal form. 28/209 useless extension candidates. Maximal degree in co-relation 182. Up to 13 conditions per place. [2021-06-13 06:57:09,343 INFO L132 encePairwiseOnDemand]: 175/184 looper letters, 13 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2021-06-13 06:57:09,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 163 transitions, 383 flow [2021-06-13 06:57:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 06:57:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 06:57:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2021-06-13 06:57:09,356 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9384057971014492 [2021-06-13 06:57:09,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2021-06-13 06:57:09,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2021-06-13 06:57:09,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:09,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2021-06-13 06:57:09,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,376 INFO L185 Difference]: Start difference. First operand has 156 places, 168 transitions, 363 flow. Second operand 3 states and 518 transitions. [2021-06-13 06:57:09,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 163 transitions, 383 flow [2021-06-13 06:57:09,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 163 transitions, 365 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-13 06:57:09,382 INFO L241 Difference]: Finished difference. Result has 154 places, 163 transitions, 347 flow [2021-06-13 06:57:09,383 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=154, PETRI_TRANSITIONS=163} [2021-06-13 06:57:09,384 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, -2 predicate places. [2021-06-13 06:57:09,384 INFO L482 AbstractCegarLoop]: Abstraction has has 154 places, 163 transitions, 347 flow [2021-06-13 06:57:09,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,384 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:09,384 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:09,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 06:57:09,385 INFO L430 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:09,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:09,385 INFO L82 PathProgramCache]: Analyzing trace with hash 566486812, now seen corresponding path program 1 times [2021-06-13 06:57:09,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:09,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018606382] [2021-06-13 06:57:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:09,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:09,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:09,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:09,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018606382] [2021-06-13 06:57:09,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018606382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:09,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:09,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 06:57:09,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563300993] [2021-06-13 06:57:09,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 06:57:09,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:09,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 06:57:09,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 06:57:09,472 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 184 [2021-06-13 06:57:09,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 163 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:09,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 184 [2021-06-13 06:57:09,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:09,518 INFO L129 PetriNetUnfolder]: 32/325 cut-off events. [2021-06-13 06:57:09,518 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-13 06:57:09,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 325 events. 32/325 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1293 event pairs, 3 based on Foata normal form. 2/301 useless extension candidates. Maximal degree in co-relation 261. Up to 20 conditions per place. [2021-06-13 06:57:09,521 INFO L132 encePairwiseOnDemand]: 181/184 looper letters, 4 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2021-06-13 06:57:09,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 164 transitions, 361 flow [2021-06-13 06:57:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 06:57:09,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 06:57:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-06-13 06:57:09,523 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9528985507246377 [2021-06-13 06:57:09,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-06-13 06:57:09,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-06-13 06:57:09,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:09,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-06-13 06:57:09,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,526 INFO L185 Difference]: Start difference. First operand has 154 places, 163 transitions, 347 flow. Second operand 3 states and 526 transitions. [2021-06-13 06:57:09,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 164 transitions, 361 flow [2021-06-13 06:57:09,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 164 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 06:57:09,533 INFO L241 Difference]: Finished difference. Result has 156 places, 163 transitions, 353 flow [2021-06-13 06:57:09,533 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=156, PETRI_TRANSITIONS=163} [2021-06-13 06:57:09,533 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2021-06-13 06:57:09,533 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 163 transitions, 353 flow [2021-06-13 06:57:09,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,534 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:09,534 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:09,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 06:57:09,534 INFO L430 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1282967431, now seen corresponding path program 1 times [2021-06-13 06:57:09,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:09,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760112126] [2021-06-13 06:57:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:09,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:09,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:09,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:09,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:09,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760112126] [2021-06-13 06:57:09,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760112126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:09,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:09,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 06:57:09,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105938109] [2021-06-13 06:57:09,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 06:57:09,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:09,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 06:57:09,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 06:57:09,603 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 184 [2021-06-13 06:57:09,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 163 transitions, 353 flow. Second operand has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:09,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 184 [2021-06-13 06:57:09,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:09,855 INFO L129 PetriNetUnfolder]: 435/1606 cut-off events. [2021-06-13 06:57:09,855 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-13 06:57:09,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 1606 events. 435/1606 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12765 event pairs, 135 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 2285. Up to 338 conditions per place. [2021-06-13 06:57:09,867 INFO L132 encePairwiseOnDemand]: 177/184 looper letters, 47 selfloop transitions, 11 changer transitions 1/196 dead transitions. [2021-06-13 06:57:09,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 196 transitions, 538 flow [2021-06-13 06:57:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 06:57:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 06:57:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1125 transitions. [2021-06-13 06:57:09,870 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8734472049689441 [2021-06-13 06:57:09,870 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1125 transitions. [2021-06-13 06:57:09,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1125 transitions. [2021-06-13 06:57:09,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:09,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1125 transitions. [2021-06-13 06:57:09,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 160.71428571428572) internal successors, (1125), 7 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,874 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,874 INFO L185 Difference]: Start difference. First operand has 156 places, 163 transitions, 353 flow. Second operand 7 states and 1125 transitions. [2021-06-13 06:57:09,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 196 transitions, 538 flow [2021-06-13 06:57:09,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 196 transitions, 534 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-13 06:57:09,878 INFO L241 Difference]: Finished difference. Result has 163 places, 172 transitions, 411 flow [2021-06-13 06:57:09,878 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=411, PETRI_PLACES=163, PETRI_TRANSITIONS=172} [2021-06-13 06:57:09,878 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 7 predicate places. [2021-06-13 06:57:09,878 INFO L482 AbstractCegarLoop]: Abstraction has has 163 places, 172 transitions, 411 flow [2021-06-13 06:57:09,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,879 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:09,879 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:09,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 06:57:09,879 INFO L430 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:09,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1550287797, now seen corresponding path program 1 times [2021-06-13 06:57:09,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:09,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661191453] [2021-06-13 06:57:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:09,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:09,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:09,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:09,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 06:57:09,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:09,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:09,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:09,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:09,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661191453] [2021-06-13 06:57:09,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661191453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:09,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:09,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 06:57:09,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844179813] [2021-06-13 06:57:09,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 06:57:09,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:09,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 06:57:09,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 06:57:09,952 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 184 [2021-06-13 06:57:09,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 172 transitions, 411 flow. Second operand has 7 states, 7 states have (on average 142.57142857142858) internal successors, (998), 7 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:09,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:09,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 184 [2021-06-13 06:57:09,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:10,370 INFO L129 PetriNetUnfolder]: 1055/3258 cut-off events. [2021-06-13 06:57:10,370 INFO L130 PetriNetUnfolder]: For 264/264 co-relation queries the response was YES. [2021-06-13 06:57:10,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5503 conditions, 3258 events. 1055/3258 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 29096 event pairs, 268 based on Foata normal form. 32/3081 useless extension candidates. Maximal degree in co-relation 4597. Up to 885 conditions per place. [2021-06-13 06:57:10,394 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 73 selfloop transitions, 18 changer transitions 3/225 dead transitions. [2021-06-13 06:57:10,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 225 transitions, 739 flow [2021-06-13 06:57:10,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 06:57:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 06:57:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1473 transitions. [2021-06-13 06:57:10,397 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8005434782608696 [2021-06-13 06:57:10,397 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1473 transitions. [2021-06-13 06:57:10,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1473 transitions. [2021-06-13 06:57:10,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:10,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1473 transitions. [2021-06-13 06:57:10,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 147.3) internal successors, (1473), 10 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:10,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:10,404 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:10,404 INFO L185 Difference]: Start difference. First operand has 163 places, 172 transitions, 411 flow. Second operand 10 states and 1473 transitions. [2021-06-13 06:57:10,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 225 transitions, 739 flow [2021-06-13 06:57:10,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 225 transitions, 739 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-13 06:57:10,412 INFO L241 Difference]: Finished difference. Result has 177 places, 188 transitions, 527 flow [2021-06-13 06:57:10,412 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=527, PETRI_PLACES=177, PETRI_TRANSITIONS=188} [2021-06-13 06:57:10,412 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 21 predicate places. [2021-06-13 06:57:10,412 INFO L482 AbstractCegarLoop]: Abstraction has has 177 places, 188 transitions, 527 flow [2021-06-13 06:57:10,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 142.57142857142858) internal successors, (998), 7 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:10,412 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:10,413 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:10,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 06:57:10,413 INFO L430 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:10,413 INFO L82 PathProgramCache]: Analyzing trace with hash -584081827, now seen corresponding path program 2 times [2021-06-13 06:57:10,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:10,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871935317] [2021-06-13 06:57:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:10,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:10,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 06:57:10,491 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:10,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:10,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:10,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:10,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:10,541 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:10,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:10,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:10,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:10,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:10,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871935317] [2021-06-13 06:57:10,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871935317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:10,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:10,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 06:57:10,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831839976] [2021-06-13 06:57:10,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 06:57:10,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:10,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 06:57:10,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-13 06:57:10,544 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 184 [2021-06-13 06:57:10,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 188 transitions, 527 flow. Second operand has 6 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:10,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:10,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 184 [2021-06-13 06:57:10,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:10,998 INFO L129 PetriNetUnfolder]: 1137/3462 cut-off events. [2021-06-13 06:57:10,998 INFO L130 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2021-06-13 06:57:11,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5954 conditions, 3462 events. 1137/3462 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 31084 event pairs, 77 based on Foata normal form. 120/3412 useless extension candidates. Maximal degree in co-relation 5703. Up to 1236 conditions per place. [2021-06-13 06:57:11,029 INFO L132 encePairwiseOnDemand]: 166/184 looper letters, 74 selfloop transitions, 31 changer transitions 0/258 dead transitions. [2021-06-13 06:57:11,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 258 transitions, 905 flow [2021-06-13 06:57:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 06:57:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 06:57:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1267 transitions. [2021-06-13 06:57:11,032 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.860733695652174 [2021-06-13 06:57:11,032 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1267 transitions. [2021-06-13 06:57:11,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1267 transitions. [2021-06-13 06:57:11,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:11,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1267 transitions. [2021-06-13 06:57:11,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,037 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,037 INFO L185 Difference]: Start difference. First operand has 177 places, 188 transitions, 527 flow. Second operand 8 states and 1267 transitions. [2021-06-13 06:57:11,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 258 transitions, 905 flow [2021-06-13 06:57:11,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 258 transitions, 905 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-13 06:57:11,046 INFO L241 Difference]: Finished difference. Result has 190 places, 221 transitions, 774 flow [2021-06-13 06:57:11,047 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=774, PETRI_PLACES=190, PETRI_TRANSITIONS=221} [2021-06-13 06:57:11,047 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 34 predicate places. [2021-06-13 06:57:11,047 INFO L482 AbstractCegarLoop]: Abstraction has has 190 places, 221 transitions, 774 flow [2021-06-13 06:57:11,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,047 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:11,047 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:11,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 06:57:11,047 INFO L430 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:11,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:11,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1824780835, now seen corresponding path program 1 times [2021-06-13 06:57:11,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:11,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99428572] [2021-06-13 06:57:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:11,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:11,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 06:57:11,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:11,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:11,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:11,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:11,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:11,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:11,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:11,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99428572] [2021-06-13 06:57:11,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99428572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:11,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:11,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 06:57:11,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588176718] [2021-06-13 06:57:11,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 06:57:11,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:11,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 06:57:11,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 06:57:11,128 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 184 [2021-06-13 06:57:11,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 221 transitions, 774 flow. Second operand has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:11,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 184 [2021-06-13 06:57:11,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:11,587 INFO L129 PetriNetUnfolder]: 1130/3519 cut-off events. [2021-06-13 06:57:11,588 INFO L130 PetriNetUnfolder]: For 2784/2825 co-relation queries the response was YES. [2021-06-13 06:57:11,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8104 conditions, 3519 events. 1130/3519 cut-off events. For 2784/2825 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 32088 event pairs, 43 based on Foata normal form. 56/3436 useless extension candidates. Maximal degree in co-relation 7842. Up to 880 conditions per place. [2021-06-13 06:57:11,618 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 92 selfloop transitions, 37 changer transitions 0/282 dead transitions. [2021-06-13 06:57:11,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 282 transitions, 1296 flow [2021-06-13 06:57:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 06:57:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 06:57:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1555 transitions. [2021-06-13 06:57:11,621 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.845108695652174 [2021-06-13 06:57:11,621 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1555 transitions. [2021-06-13 06:57:11,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1555 transitions. [2021-06-13 06:57:11,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:11,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1555 transitions. [2021-06-13 06:57:11,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 155.5) internal successors, (1555), 10 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,627 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,627 INFO L185 Difference]: Start difference. First operand has 190 places, 221 transitions, 774 flow. Second operand 10 states and 1555 transitions. [2021-06-13 06:57:11,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 282 transitions, 1296 flow [2021-06-13 06:57:11,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 282 transitions, 1296 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-13 06:57:11,640 INFO L241 Difference]: Finished difference. Result has 204 places, 237 transitions, 1013 flow [2021-06-13 06:57:11,640 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1013, PETRI_PLACES=204, PETRI_TRANSITIONS=237} [2021-06-13 06:57:11,640 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 48 predicate places. [2021-06-13 06:57:11,640 INFO L482 AbstractCegarLoop]: Abstraction has has 204 places, 237 transitions, 1013 flow [2021-06-13 06:57:11,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,642 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:11,642 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:11,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 06:57:11,642 INFO L430 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:11,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash 382774701, now seen corresponding path program 1 times [2021-06-13 06:57:11,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:11,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453744273] [2021-06-13 06:57:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:11,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:11,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:11,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:11,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453744273] [2021-06-13 06:57:11,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453744273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:11,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:11,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 06:57:11,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381208765] [2021-06-13 06:57:11,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 06:57:11,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:11,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 06:57:11,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 06:57:11,689 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 184 [2021-06-13 06:57:11,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 237 transitions, 1013 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:11,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 184 [2021-06-13 06:57:11,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:11,903 INFO L129 PetriNetUnfolder]: 607/2785 cut-off events. [2021-06-13 06:57:11,903 INFO L130 PetriNetUnfolder]: For 1789/1855 co-relation queries the response was YES. [2021-06-13 06:57:11,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5323 conditions, 2785 events. 607/2785 cut-off events. For 1789/1855 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 26768 event pairs, 37 based on Foata normal form. 15/2648 useless extension candidates. Maximal degree in co-relation 5140. Up to 431 conditions per place. [2021-06-13 06:57:11,927 INFO L132 encePairwiseOnDemand]: 182/184 looper letters, 14 selfloop transitions, 1 changer transitions 0/239 dead transitions. [2021-06-13 06:57:11,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 239 transitions, 1056 flow [2021-06-13 06:57:11,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 06:57:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 06:57:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-06-13 06:57:11,928 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9528985507246377 [2021-06-13 06:57:11,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-06-13 06:57:11,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-06-13 06:57:11,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:11,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-06-13 06:57:11,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,930 INFO L185 Difference]: Start difference. First operand has 204 places, 237 transitions, 1013 flow. Second operand 3 states and 526 transitions. [2021-06-13 06:57:11,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 239 transitions, 1056 flow [2021-06-13 06:57:11,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 239 transitions, 1035 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 06:57:11,940 INFO L241 Difference]: Finished difference. Result has 203 places, 237 transitions, 997 flow [2021-06-13 06:57:11,940 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=997, PETRI_PLACES=203, PETRI_TRANSITIONS=237} [2021-06-13 06:57:11,940 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 47 predicate places. [2021-06-13 06:57:11,940 INFO L482 AbstractCegarLoop]: Abstraction has has 203 places, 237 transitions, 997 flow [2021-06-13 06:57:11,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,941 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:11,941 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:11,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 06:57:11,941 INFO L430 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash -651777295, now seen corresponding path program 1 times [2021-06-13 06:57:11,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:11,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004305067] [2021-06-13 06:57:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:11,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:11,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:11,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:11,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:11,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:11,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:11,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004305067] [2021-06-13 06:57:11,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004305067] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:11,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:11,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 06:57:11,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280592155] [2021-06-13 06:57:11,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 06:57:11,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:11,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 06:57:11,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 06:57:11,992 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 184 [2021-06-13 06:57:11,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 237 transitions, 997 flow. Second operand has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:11,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:11,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 184 [2021-06-13 06:57:11,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:12,973 INFO L129 PetriNetUnfolder]: 2852/9079 cut-off events. [2021-06-13 06:57:12,973 INFO L130 PetriNetUnfolder]: For 4899/5108 co-relation queries the response was YES. [2021-06-13 06:57:13,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18911 conditions, 9079 events. 2852/9079 cut-off events. For 4899/5108 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 100885 event pairs, 539 based on Foata normal form. 101/8448 useless extension candidates. Maximal degree in co-relation 18613. Up to 1528 conditions per place. [2021-06-13 06:57:13,056 INFO L132 encePairwiseOnDemand]: 178/184 looper letters, 68 selfloop transitions, 6 changer transitions 0/271 dead transitions. [2021-06-13 06:57:13,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 271 transitions, 1266 flow [2021-06-13 06:57:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 06:57:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 06:57:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 813 transitions. [2021-06-13 06:57:13,058 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883695652173913 [2021-06-13 06:57:13,058 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 813 transitions. [2021-06-13 06:57:13,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 813 transitions. [2021-06-13 06:57:13,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:13,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 813 transitions. [2021-06-13 06:57:13,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 162.6) internal successors, (813), 5 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,062 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,062 INFO L185 Difference]: Start difference. First operand has 203 places, 237 transitions, 997 flow. Second operand 5 states and 813 transitions. [2021-06-13 06:57:13,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 271 transitions, 1266 flow [2021-06-13 06:57:13,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 271 transitions, 1265 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 06:57:13,086 INFO L241 Difference]: Finished difference. Result has 209 places, 242 transitions, 1059 flow [2021-06-13 06:57:13,086 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1059, PETRI_PLACES=209, PETRI_TRANSITIONS=242} [2021-06-13 06:57:13,086 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 53 predicate places. [2021-06-13 06:57:13,086 INFO L482 AbstractCegarLoop]: Abstraction has has 209 places, 242 transitions, 1059 flow [2021-06-13 06:57:13,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,087 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:13,087 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:13,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 06:57:13,087 INFO L430 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:13,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1486979952, now seen corresponding path program 1 times [2021-06-13 06:57:13,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:13,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224760748] [2021-06-13 06:57:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:13,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:13,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:13,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:13,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:13,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224760748] [2021-06-13 06:57:13,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224760748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:13,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:13,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 06:57:13,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702898451] [2021-06-13 06:57:13,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 06:57:13,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:13,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 06:57:13,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 06:57:13,153 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 184 [2021-06-13 06:57:13,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 242 transitions, 1059 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:13,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 184 [2021-06-13 06:57:13,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:13,503 INFO L129 PetriNetUnfolder]: 895/4168 cut-off events. [2021-06-13 06:57:13,503 INFO L130 PetriNetUnfolder]: For 2464/2544 co-relation queries the response was YES. [2021-06-13 06:57:13,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8108 conditions, 4168 events. 895/4168 cut-off events. For 2464/2544 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 43213 event pairs, 42 based on Foata normal form. 2/3898 useless extension candidates. Maximal degree in co-relation 7738. Up to 418 conditions per place. [2021-06-13 06:57:13,536 INFO L132 encePairwiseOnDemand]: 181/184 looper letters, 7 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2021-06-13 06:57:13,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 226 transitions, 997 flow [2021-06-13 06:57:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 06:57:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 06:57:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2021-06-13 06:57:13,538 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9365942028985508 [2021-06-13 06:57:13,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2021-06-13 06:57:13,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2021-06-13 06:57:13,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:13,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2021-06-13 06:57:13,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,540 INFO L185 Difference]: Start difference. First operand has 209 places, 242 transitions, 1059 flow. Second operand 3 states and 517 transitions. [2021-06-13 06:57:13,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 226 transitions, 997 flow [2021-06-13 06:57:13,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 226 transitions, 982 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-06-13 06:57:13,555 INFO L241 Difference]: Finished difference. Result has 201 places, 224 transitions, 964 flow [2021-06-13 06:57:13,555 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=201, PETRI_TRANSITIONS=224} [2021-06-13 06:57:13,556 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 45 predicate places. [2021-06-13 06:57:13,556 INFO L482 AbstractCegarLoop]: Abstraction has has 201 places, 224 transitions, 964 flow [2021-06-13 06:57:13,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,556 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:13,556 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:13,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 06:57:13,556 INFO L430 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:13,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1454650850, now seen corresponding path program 1 times [2021-06-13 06:57:13,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:13,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070079655] [2021-06-13 06:57:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:13,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:13,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 06:57:13,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:13,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:13,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:13,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070079655] [2021-06-13 06:57:13,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070079655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:13,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:13,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 06:57:13,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036694162] [2021-06-13 06:57:13,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 06:57:13,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:13,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 06:57:13,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 06:57:13,576 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 184 [2021-06-13 06:57:13,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 224 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:13,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:13,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 184 [2021-06-13 06:57:13,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:13,975 INFO L129 PetriNetUnfolder]: 792/4010 cut-off events. [2021-06-13 06:57:13,975 INFO L130 PetriNetUnfolder]: For 2078/2156 co-relation queries the response was YES. [2021-06-13 06:57:14,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7816 conditions, 4010 events. 792/4010 cut-off events. For 2078/2156 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 42277 event pairs, 42 based on Foata normal form. 2/3824 useless extension candidates. Maximal degree in co-relation 7447. Up to 423 conditions per place. [2021-06-13 06:57:14,013 INFO L132 encePairwiseOnDemand]: 182/184 looper letters, 7 selfloop transitions, 1 changer transitions 0/223 dead transitions. [2021-06-13 06:57:14,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 223 transitions, 978 flow [2021-06-13 06:57:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 06:57:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 06:57:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2021-06-13 06:57:14,015 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9347826086956522 [2021-06-13 06:57:14,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 516 transitions. [2021-06-13 06:57:14,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 516 transitions. [2021-06-13 06:57:14,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:14,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 516 transitions. [2021-06-13 06:57:14,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,017 INFO L185 Difference]: Start difference. First operand has 201 places, 224 transitions, 964 flow. Second operand 3 states and 516 transitions. [2021-06-13 06:57:14,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 223 transitions, 978 flow [2021-06-13 06:57:14,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 223 transitions, 974 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-13 06:57:14,032 INFO L241 Difference]: Finished difference. Result has 200 places, 221 transitions, 956 flow [2021-06-13 06:57:14,032 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=200, PETRI_TRANSITIONS=221} [2021-06-13 06:57:14,033 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 44 predicate places. [2021-06-13 06:57:14,033 INFO L482 AbstractCegarLoop]: Abstraction has has 200 places, 221 transitions, 956 flow [2021-06-13 06:57:14,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,033 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:14,033 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:14,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 06:57:14,033 INFO L430 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:14,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1453637956, now seen corresponding path program 1 times [2021-06-13 06:57:14,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:14,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580771900] [2021-06-13 06:57:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:14,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:14,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:14,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:14,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:14,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:14,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:14,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580771900] [2021-06-13 06:57:14,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580771900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:14,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:14,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 06:57:14,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802249142] [2021-06-13 06:57:14,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 06:57:14,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:14,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 06:57:14,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 06:57:14,069 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 184 [2021-06-13 06:57:14,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 221 transitions, 956 flow. Second operand has 5 states, 5 states have (on average 162.4) internal successors, (812), 5 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:14,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 184 [2021-06-13 06:57:14,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:14,596 INFO L129 PetriNetUnfolder]: 1033/4640 cut-off events. [2021-06-13 06:57:14,596 INFO L130 PetriNetUnfolder]: For 3448/3565 co-relation queries the response was YES. [2021-06-13 06:57:14,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10050 conditions, 4640 events. 1033/4640 cut-off events. For 3448/3565 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 51285 event pairs, 82 based on Foata normal form. 24/4515 useless extension candidates. Maximal degree in co-relation 9697. Up to 734 conditions per place. [2021-06-13 06:57:14,626 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 37 selfloop transitions, 31 changer transitions 0/258 dead transitions. [2021-06-13 06:57:14,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 258 transitions, 1282 flow [2021-06-13 06:57:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 06:57:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 06:57:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1179 transitions. [2021-06-13 06:57:14,628 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9153726708074534 [2021-06-13 06:57:14,628 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1179 transitions. [2021-06-13 06:57:14,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1179 transitions. [2021-06-13 06:57:14,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:14,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1179 transitions. [2021-06-13 06:57:14,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.42857142857142) internal successors, (1179), 7 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,632 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,632 INFO L185 Difference]: Start difference. First operand has 200 places, 221 transitions, 956 flow. Second operand 7 states and 1179 transitions. [2021-06-13 06:57:14,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 258 transitions, 1282 flow [2021-06-13 06:57:14,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 258 transitions, 1281 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 06:57:14,645 INFO L241 Difference]: Finished difference. Result has 210 places, 239 transitions, 1208 flow [2021-06-13 06:57:14,646 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1208, PETRI_PLACES=210, PETRI_TRANSITIONS=239} [2021-06-13 06:57:14,646 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 54 predicate places. [2021-06-13 06:57:14,646 INFO L482 AbstractCegarLoop]: Abstraction has has 210 places, 239 transitions, 1208 flow [2021-06-13 06:57:14,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 162.4) internal successors, (812), 5 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,646 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:14,646 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:14,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 06:57:14,646 INFO L430 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1924510843, now seen corresponding path program 1 times [2021-06-13 06:57:14,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:14,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073593269] [2021-06-13 06:57:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:14,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:14,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:14,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:14,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:14,682 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:14,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:14,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:14,730 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:14,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:14,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:14,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:14,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:14,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073593269] [2021-06-13 06:57:14,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073593269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:14,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:14,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 06:57:14,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743437157] [2021-06-13 06:57:14,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 06:57:14,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:14,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 06:57:14,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 06:57:14,733 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:14,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 239 transitions, 1208 flow. Second operand has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:14,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:14,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:14,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:15,844 INFO L129 PetriNetUnfolder]: 3122/9053 cut-off events. [2021-06-13 06:57:15,844 INFO L130 PetriNetUnfolder]: For 18875/19176 co-relation queries the response was YES. [2021-06-13 06:57:15,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26647 conditions, 9053 events. 3122/9053 cut-off events. For 18875/19176 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 94340 event pairs, 201 based on Foata normal form. 156/8987 useless extension candidates. Maximal degree in co-relation 26251. Up to 2298 conditions per place. [2021-06-13 06:57:15,907 INFO L132 encePairwiseOnDemand]: 168/184 looper letters, 168 selfloop transitions, 78 changer transitions 0/393 dead transitions. [2021-06-13 06:57:15,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 393 transitions, 2756 flow [2021-06-13 06:57:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:15,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1770 transitions. [2021-06-13 06:57:15,910 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8016304347826086 [2021-06-13 06:57:15,910 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1770 transitions. [2021-06-13 06:57:15,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1770 transitions. [2021-06-13 06:57:15,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:15,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1770 transitions. [2021-06-13 06:57:15,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 147.5) internal successors, (1770), 12 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:15,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:15,916 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:15,916 INFO L185 Difference]: Start difference. First operand has 210 places, 239 transitions, 1208 flow. Second operand 12 states and 1770 transitions. [2021-06-13 06:57:15,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 393 transitions, 2756 flow [2021-06-13 06:57:15,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 393 transitions, 2732 flow, removed 12 selfloop flow, removed 0 redundant places. [2021-06-13 06:57:15,988 INFO L241 Difference]: Finished difference. Result has 226 places, 287 transitions, 1957 flow [2021-06-13 06:57:15,989 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1957, PETRI_PLACES=226, PETRI_TRANSITIONS=287} [2021-06-13 06:57:15,989 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 70 predicate places. [2021-06-13 06:57:15,989 INFO L482 AbstractCegarLoop]: Abstraction has has 226 places, 287 transitions, 1957 flow [2021-06-13 06:57:15,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:15,989 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:15,989 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:15,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 06:57:15,989 INFO L430 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:15,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1021973387, now seen corresponding path program 2 times [2021-06-13 06:57:15,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:15,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023165011] [2021-06-13 06:57:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:16,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:16,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:16,050 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:16,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:16,057 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:16,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:16,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:16,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:16,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:16,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:16,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:16,105 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:16,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:16,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:16,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:16,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:16,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023165011] [2021-06-13 06:57:16,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023165011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:16,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:16,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 06:57:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442654446] [2021-06-13 06:57:16,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 06:57:16,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:16,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 06:57:16,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 06:57:16,108 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:16,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 287 transitions, 1957 flow. Second operand has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:16,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:16,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:16,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:17,491 INFO L129 PetriNetUnfolder]: 3429/9819 cut-off events. [2021-06-13 06:57:17,491 INFO L130 PetriNetUnfolder]: For 29774/30095 co-relation queries the response was YES. [2021-06-13 06:57:17,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32225 conditions, 9819 events. 3429/9819 cut-off events. For 29774/30095 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 103408 event pairs, 227 based on Foata normal form. 237/9807 useless extension candidates. Maximal degree in co-relation 31821. Up to 2243 conditions per place. [2021-06-13 06:57:17,615 INFO L132 encePairwiseOnDemand]: 167/184 looper letters, 112 selfloop transitions, 76 changer transitions 171/479 dead transitions. [2021-06-13 06:57:17,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 479 transitions, 4149 flow [2021-06-13 06:57:17,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 06:57:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-13 06:57:17,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2205 transitions. [2021-06-13 06:57:17,630 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7989130434782609 [2021-06-13 06:57:17,630 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2205 transitions. [2021-06-13 06:57:17,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2205 transitions. [2021-06-13 06:57:17,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:17,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2205 transitions. [2021-06-13 06:57:17,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 147.0) internal successors, (2205), 15 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:17,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 184.0) internal successors, (2944), 16 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:17,646 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 184.0) internal successors, (2944), 16 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:17,646 INFO L185 Difference]: Start difference. First operand has 226 places, 287 transitions, 1957 flow. Second operand 15 states and 2205 transitions. [2021-06-13 06:57:17,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 479 transitions, 4149 flow [2021-06-13 06:57:17,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 479 transitions, 4111 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-06-13 06:57:17,775 INFO L241 Difference]: Finished difference. Result has 244 places, 245 transitions, 1902 flow [2021-06-13 06:57:17,775 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1902, PETRI_PLACES=244, PETRI_TRANSITIONS=245} [2021-06-13 06:57:17,775 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 88 predicate places. [2021-06-13 06:57:17,775 INFO L482 AbstractCegarLoop]: Abstraction has has 244 places, 245 transitions, 1902 flow [2021-06-13 06:57:17,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:17,776 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:17,776 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:17,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-13 06:57:17,776 INFO L430 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:17,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:17,776 INFO L82 PathProgramCache]: Analyzing trace with hash 56576421, now seen corresponding path program 1 times [2021-06-13 06:57:17,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:17,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842372270] [2021-06-13 06:57:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:17,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:17,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:17,806 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:17,811 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:17,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:17,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:17,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:17,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:17,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:17,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:17,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:17,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:17,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842372270] [2021-06-13 06:57:17,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842372270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:17,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:17,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 06:57:17,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351488456] [2021-06-13 06:57:17,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 06:57:17,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 06:57:17,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 06:57:17,868 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:17,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 245 transitions, 1902 flow. Second operand has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:17,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:17,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:17,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:19,120 INFO L129 PetriNetUnfolder]: 2308/6994 cut-off events. [2021-06-13 06:57:19,120 INFO L130 PetriNetUnfolder]: For 32386/32719 co-relation queries the response was YES. [2021-06-13 06:57:19,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25018 conditions, 6994 events. 2308/6994 cut-off events. For 32386/32719 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 72422 event pairs, 169 based on Foata normal form. 224/6991 useless extension candidates. Maximal degree in co-relation 24947. Up to 1285 conditions per place. [2021-06-13 06:57:19,161 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 127 selfloop transitions, 72 changer transitions 46/365 dead transitions. [2021-06-13 06:57:19,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 365 transitions, 3290 flow [2021-06-13 06:57:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 06:57:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 06:57:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2436 transitions. [2021-06-13 06:57:19,165 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7787723785166241 [2021-06-13 06:57:19,165 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2436 transitions. [2021-06-13 06:57:19,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2436 transitions. [2021-06-13 06:57:19,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:19,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2436 transitions. [2021-06-13 06:57:19,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 143.2941176470588) internal successors, (2436), 17 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:19,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 184.0) internal successors, (3312), 18 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:19,172 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 184.0) internal successors, (3312), 18 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:19,172 INFO L185 Difference]: Start difference. First operand has 244 places, 245 transitions, 1902 flow. Second operand 17 states and 2436 transitions. [2021-06-13 06:57:19,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 365 transitions, 3290 flow [2021-06-13 06:57:19,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 365 transitions, 3115 flow, removed 59 selfloop flow, removed 14 redundant places. [2021-06-13 06:57:19,294 INFO L241 Difference]: Finished difference. Result has 235 places, 257 transitions, 2109 flow [2021-06-13 06:57:19,294 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1791, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2109, PETRI_PLACES=235, PETRI_TRANSITIONS=257} [2021-06-13 06:57:19,295 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 79 predicate places. [2021-06-13 06:57:19,295 INFO L482 AbstractCegarLoop]: Abstraction has has 235 places, 257 transitions, 2109 flow [2021-06-13 06:57:19,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:19,295 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:19,295 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:19,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-13 06:57:19,295 INFO L430 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:19,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:19,296 INFO L82 PathProgramCache]: Analyzing trace with hash -618309961, now seen corresponding path program 3 times [2021-06-13 06:57:19,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:19,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544629079] [2021-06-13 06:57:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:19,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:19,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:19,328 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:19,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:19,332 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:19,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:19,339 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:19,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:19,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:19,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:19,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:19,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:19,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:19,380 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:19,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:19,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544629079] [2021-06-13 06:57:19,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544629079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:19,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:19,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 06:57:19,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095061361] [2021-06-13 06:57:19,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 06:57:19,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:19,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 06:57:19,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 06:57:19,384 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:19,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 257 transitions, 2109 flow. Second operand has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:19,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:19,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:19,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:20,381 INFO L129 PetriNetUnfolder]: 2147/6664 cut-off events. [2021-06-13 06:57:20,381 INFO L130 PetriNetUnfolder]: For 38967/39313 co-relation queries the response was YES. [2021-06-13 06:57:20,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24055 conditions, 6664 events. 2147/6664 cut-off events. For 38967/39313 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 68999 event pairs, 176 based on Foata normal form. 276/6742 useless extension candidates. Maximal degree in co-relation 23635. Up to 1248 conditions per place. [2021-06-13 06:57:20,502 INFO L132 encePairwiseOnDemand]: 167/184 looper letters, 141 selfloop transitions, 76 changer transitions 33/370 dead transitions. [2021-06-13 06:57:20,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 370 transitions, 3513 flow [2021-06-13 06:57:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1758 transitions. [2021-06-13 06:57:20,504 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7961956521739131 [2021-06-13 06:57:20,504 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1758 transitions. [2021-06-13 06:57:20,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1758 transitions. [2021-06-13 06:57:20,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:20,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1758 transitions. [2021-06-13 06:57:20,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 146.5) internal successors, (1758), 12 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:20,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:20,508 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:20,508 INFO L185 Difference]: Start difference. First operand has 235 places, 257 transitions, 2109 flow. Second operand 12 states and 1758 transitions. [2021-06-13 06:57:20,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 370 transitions, 3513 flow [2021-06-13 06:57:20,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 370 transitions, 3450 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-06-13 06:57:20,628 INFO L241 Difference]: Finished difference. Result has 245 places, 266 transitions, 2432 flow [2021-06-13 06:57:20,629 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2061, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2432, PETRI_PLACES=245, PETRI_TRANSITIONS=266} [2021-06-13 06:57:20,629 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 89 predicate places. [2021-06-13 06:57:20,629 INFO L482 AbstractCegarLoop]: Abstraction has has 245 places, 266 transitions, 2432 flow [2021-06-13 06:57:20,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:20,629 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:20,629 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:20,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-13 06:57:20,629 INFO L430 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:20,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:20,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1127585659, now seen corresponding path program 2 times [2021-06-13 06:57:20,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:20,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881117353] [2021-06-13 06:57:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:20,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:20,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:20,672 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:20,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:20,677 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:20,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:20,683 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:20,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:20,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:20,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:20,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:20,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:20,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:20,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:20,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:20,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881117353] [2021-06-13 06:57:20,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881117353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:20,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:20,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 06:57:20,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054154433] [2021-06-13 06:57:20,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 06:57:20,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:20,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 06:57:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 06:57:20,725 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:20,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 266 transitions, 2432 flow. Second operand has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:20,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:20,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:20,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:21,774 INFO L129 PetriNetUnfolder]: 2088/6660 cut-off events. [2021-06-13 06:57:21,775 INFO L130 PetriNetUnfolder]: For 47266/47622 co-relation queries the response was YES. [2021-06-13 06:57:21,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25210 conditions, 6660 events. 2088/6660 cut-off events. For 47266/47622 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 69796 event pairs, 106 based on Foata normal form. 251/6722 useless extension candidates. Maximal degree in co-relation 24810. Up to 1140 conditions per place. [2021-06-13 06:57:21,820 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 141 selfloop transitions, 79 changer transitions 47/387 dead transitions. [2021-06-13 06:57:21,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 387 transitions, 3952 flow [2021-06-13 06:57:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 06:57:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 06:57:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2309 transitions. [2021-06-13 06:57:21,826 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7843070652173914 [2021-06-13 06:57:21,826 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2309 transitions. [2021-06-13 06:57:21,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2309 transitions. [2021-06-13 06:57:21,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:21,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2309 transitions. [2021-06-13 06:57:21,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 144.3125) internal successors, (2309), 16 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:21,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:21,832 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:21,832 INFO L185 Difference]: Start difference. First operand has 245 places, 266 transitions, 2432 flow. Second operand 16 states and 2309 transitions. [2021-06-13 06:57:21,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 387 transitions, 3952 flow [2021-06-13 06:57:21,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 387 transitions, 3842 flow, removed 33 selfloop flow, removed 5 redundant places. [2021-06-13 06:57:22,002 INFO L241 Difference]: Finished difference. Result has 260 places, 270 transitions, 2628 flow [2021-06-13 06:57:22,002 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2347, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2628, PETRI_PLACES=260, PETRI_TRANSITIONS=270} [2021-06-13 06:57:22,002 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 104 predicate places. [2021-06-13 06:57:22,002 INFO L482 AbstractCegarLoop]: Abstraction has has 260 places, 270 transitions, 2628 flow [2021-06-13 06:57:22,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:22,003 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:22,003 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:22,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-13 06:57:22,003 INFO L430 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash -224229009, now seen corresponding path program 3 times [2021-06-13 06:57:22,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:22,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261043786] [2021-06-13 06:57:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:22,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:22,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:22,031 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:22,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:22,035 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:22,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:22,041 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:22,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:22,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:22,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:22,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:22,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:22,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:22,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:22,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:22,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261043786] [2021-06-13 06:57:22,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261043786] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:22,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:22,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 06:57:22,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177155905] [2021-06-13 06:57:22,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 06:57:22,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:22,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 06:57:22,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-06-13 06:57:22,085 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:22,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 270 transitions, 2628 flow. Second operand has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:22,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:22,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:22,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:23,322 INFO L129 PetriNetUnfolder]: 2010/6506 cut-off events. [2021-06-13 06:57:23,323 INFO L130 PetriNetUnfolder]: For 54701/55053 co-relation queries the response was YES. [2021-06-13 06:57:23,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25082 conditions, 6506 events. 2010/6506 cut-off events. For 54701/55053 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 68443 event pairs, 114 based on Foata normal form. 264/6592 useless extension candidates. Maximal degree in co-relation 24761. Up to 1000 conditions per place. [2021-06-13 06:57:23,378 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 127 selfloop transitions, 87 changer transitions 51/385 dead transitions. [2021-06-13 06:57:23,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 385 transitions, 4168 flow [2021-06-13 06:57:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 06:57:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-13 06:57:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2572 transitions. [2021-06-13 06:57:23,381 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7765700483091788 [2021-06-13 06:57:23,381 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2572 transitions. [2021-06-13 06:57:23,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2572 transitions. [2021-06-13 06:57:23,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:23,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2572 transitions. [2021-06-13 06:57:23,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 142.88888888888889) internal successors, (2572), 18 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:23,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:23,386 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:23,387 INFO L185 Difference]: Start difference. First operand has 260 places, 270 transitions, 2628 flow. Second operand 18 states and 2572 transitions. [2021-06-13 06:57:23,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 385 transitions, 4168 flow [2021-06-13 06:57:23,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 385 transitions, 4050 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-06-13 06:57:23,670 INFO L241 Difference]: Finished difference. Result has 276 places, 277 transitions, 2904 flow [2021-06-13 06:57:23,670 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2553, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2904, PETRI_PLACES=276, PETRI_TRANSITIONS=277} [2021-06-13 06:57:23,671 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 120 predicate places. [2021-06-13 06:57:23,671 INFO L482 AbstractCegarLoop]: Abstraction has has 276 places, 277 transitions, 2904 flow [2021-06-13 06:57:23,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:23,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:23,671 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:23,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-13 06:57:23,671 INFO L430 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash -257530786, now seen corresponding path program 1 times [2021-06-13 06:57:23,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:23,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383280521] [2021-06-13 06:57:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:23,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:23,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:23,719 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:23,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:23,723 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:23,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:23,728 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:23,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:23,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:23,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:23,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:23,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:23,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:23,765 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:23,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:23,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:23,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:23,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:23,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383280521] [2021-06-13 06:57:23,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383280521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:23,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:23,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 06:57:23,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205885655] [2021-06-13 06:57:23,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 06:57:23,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 06:57:23,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 06:57:23,773 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:23,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 277 transitions, 2904 flow. Second operand has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:23,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:23,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:23,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:24,793 INFO L129 PetriNetUnfolder]: 2019/6838 cut-off events. [2021-06-13 06:57:24,793 INFO L130 PetriNetUnfolder]: For 65785/66314 co-relation queries the response was YES. [2021-06-13 06:57:24,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26958 conditions, 6838 events. 2019/6838 cut-off events. For 65785/66314 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 73890 event pairs, 51 based on Foata normal form. 403/7067 useless extension candidates. Maximal degree in co-relation 26656. Up to 1227 conditions per place. [2021-06-13 06:57:24,845 INFO L132 encePairwiseOnDemand]: 167/184 looper letters, 155 selfloop transitions, 67 changer transitions 58/400 dead transitions. [2021-06-13 06:57:24,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 400 transitions, 4806 flow [2021-06-13 06:57:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:24,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1758 transitions. [2021-06-13 06:57:24,847 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7961956521739131 [2021-06-13 06:57:24,847 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1758 transitions. [2021-06-13 06:57:24,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1758 transitions. [2021-06-13 06:57:24,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:24,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1758 transitions. [2021-06-13 06:57:24,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 146.5) internal successors, (1758), 12 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:24,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:24,850 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:24,850 INFO L185 Difference]: Start difference. First operand has 276 places, 277 transitions, 2904 flow. Second operand 12 states and 1758 transitions. [2021-06-13 06:57:24,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 400 transitions, 4806 flow [2021-06-13 06:57:25,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 400 transitions, 4598 flow, removed 43 selfloop flow, removed 10 redundant places. [2021-06-13 06:57:25,095 INFO L241 Difference]: Finished difference. Result has 282 places, 284 transitions, 3082 flow [2021-06-13 06:57:25,095 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2765, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3082, PETRI_PLACES=282, PETRI_TRANSITIONS=284} [2021-06-13 06:57:25,095 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 126 predicate places. [2021-06-13 06:57:25,095 INFO L482 AbstractCegarLoop]: Abstraction has has 282 places, 284 transitions, 3082 flow [2021-06-13 06:57:25,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:25,096 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:25,096 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:25,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-13 06:57:25,096 INFO L430 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:25,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:25,096 INFO L82 PathProgramCache]: Analyzing trace with hash -917368928, now seen corresponding path program 1 times [2021-06-13 06:57:25,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:25,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308603576] [2021-06-13 06:57:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:25,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:25,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:25,139 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:25,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:25,142 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:25,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:25,148 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:25,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:25,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:25,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:25,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:25,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:25,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:25,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:25,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:25,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:25,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308603576] [2021-06-13 06:57:25,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308603576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:25,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:25,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 06:57:25,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131025124] [2021-06-13 06:57:25,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 06:57:25,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:25,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 06:57:25,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 06:57:25,185 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:25,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 284 transitions, 3082 flow. Second operand has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:25,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:25,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:25,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:26,199 INFO L129 PetriNetUnfolder]: 1737/6283 cut-off events. [2021-06-13 06:57:26,199 INFO L130 PetriNetUnfolder]: For 67246/67812 co-relation queries the response was YES. [2021-06-13 06:57:26,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25596 conditions, 6283 events. 1737/6283 cut-off events. For 67246/67812 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 68256 event pairs, 57 based on Foata normal form. 415/6528 useless extension candidates. Maximal degree in co-relation 25288. Up to 844 conditions per place. [2021-06-13 06:57:26,249 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 138 selfloop transitions, 82 changer transitions 53/393 dead transitions. [2021-06-13 06:57:26,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 393 transitions, 4690 flow [2021-06-13 06:57:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 06:57:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 06:57:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2303 transitions. [2021-06-13 06:57:26,251 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7822690217391305 [2021-06-13 06:57:26,251 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2303 transitions. [2021-06-13 06:57:26,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2303 transitions. [2021-06-13 06:57:26,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:26,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2303 transitions. [2021-06-13 06:57:26,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 143.9375) internal successors, (2303), 16 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:26,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:26,264 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:26,264 INFO L185 Difference]: Start difference. First operand has 282 places, 284 transitions, 3082 flow. Second operand 16 states and 2303 transitions. [2021-06-13 06:57:26,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 393 transitions, 4690 flow [2021-06-13 06:57:26,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 393 transitions, 4504 flow, removed 46 selfloop flow, removed 6 redundant places. [2021-06-13 06:57:26,467 INFO L241 Difference]: Finished difference. Result has 295 places, 286 transitions, 3150 flow [2021-06-13 06:57:26,467 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2925, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3150, PETRI_PLACES=295, PETRI_TRANSITIONS=286} [2021-06-13 06:57:26,467 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 139 predicate places. [2021-06-13 06:57:26,467 INFO L482 AbstractCegarLoop]: Abstraction has has 295 places, 286 transitions, 3150 flow [2021-06-13 06:57:26,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:26,468 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:26,468 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:26,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-13 06:57:26,468 INFO L430 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:26,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1451598522, now seen corresponding path program 2 times [2021-06-13 06:57:26,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:26,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285751006] [2021-06-13 06:57:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:26,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:26,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:26,496 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:26,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:26,501 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:26,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:26,507 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:26,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:26,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:26,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:26,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:26,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:26,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 06:57:26,546 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 06:57:26,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:26,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:26,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:26,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285751006] [2021-06-13 06:57:26,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285751006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:26,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:26,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 06:57:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050980126] [2021-06-13 06:57:26,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 06:57:26,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 06:57:26,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 06:57:26,549 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:26,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 286 transitions, 3150 flow. Second operand has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:26,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:26,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:26,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:27,490 INFO L129 PetriNetUnfolder]: 1662/5796 cut-off events. [2021-06-13 06:57:27,490 INFO L130 PetriNetUnfolder]: For 76646/77043 co-relation queries the response was YES. [2021-06-13 06:57:27,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24625 conditions, 5796 events. 1662/5796 cut-off events. For 76646/77043 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 60312 event pairs, 74 based on Foata normal form. 284/5889 useless extension candidates. Maximal degree in co-relation 24272. Up to 1189 conditions per place. [2021-06-13 06:57:27,546 INFO L132 encePairwiseOnDemand]: 168/184 looper letters, 140 selfloop transitions, 76 changer transitions 43/379 dead transitions. [2021-06-13 06:57:27,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 379 transitions, 4671 flow [2021-06-13 06:57:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1748 transitions. [2021-06-13 06:57:27,549 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2021-06-13 06:57:27,549 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1748 transitions. [2021-06-13 06:57:27,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1748 transitions. [2021-06-13 06:57:27,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:27,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1748 transitions. [2021-06-13 06:57:27,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 145.66666666666666) internal successors, (1748), 12 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:27,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:27,553 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:27,553 INFO L185 Difference]: Start difference. First operand has 295 places, 286 transitions, 3150 flow. Second operand 12 states and 1748 transitions. [2021-06-13 06:57:27,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 379 transitions, 4671 flow [2021-06-13 06:57:27,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 379 transitions, 4444 flow, removed 37 selfloop flow, removed 9 redundant places. [2021-06-13 06:57:27,765 INFO L241 Difference]: Finished difference. Result has 299 places, 288 transitions, 3276 flow [2021-06-13 06:57:27,765 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2993, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3276, PETRI_PLACES=299, PETRI_TRANSITIONS=288} [2021-06-13 06:57:27,766 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 143 predicate places. [2021-06-13 06:57:27,766 INFO L482 AbstractCegarLoop]: Abstraction has has 299 places, 288 transitions, 3276 flow [2021-06-13 06:57:27,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 134.8) internal successors, (1348), 10 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:27,766 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:27,766 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:27,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-13 06:57:27,766 INFO L430 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2142402808, now seen corresponding path program 2 times [2021-06-13 06:57:27,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:27,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983857826] [2021-06-13 06:57:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:27,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:27,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:27,798 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-13 06:57:27,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:27,803 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:27,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:27,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-06-13 06:57:27,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:27,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:27,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 06:57:27,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:27,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:27,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:27,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:27,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:27,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:27,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983857826] [2021-06-13 06:57:27,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983857826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:27,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:27,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 06:57:27,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622385051] [2021-06-13 06:57:27,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 06:57:27,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 06:57:27,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-06-13 06:57:27,862 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 184 [2021-06-13 06:57:27,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 288 transitions, 3276 flow. Second operand has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:27,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:27,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 184 [2021-06-13 06:57:27,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:28,894 INFO L129 PetriNetUnfolder]: 1287/4722 cut-off events. [2021-06-13 06:57:28,894 INFO L130 PetriNetUnfolder]: For 60339/60784 co-relation queries the response was YES. [2021-06-13 06:57:28,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19811 conditions, 4722 events. 1287/4722 cut-off events. For 60339/60784 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 48594 event pairs, 41 based on Foata normal form. 328/4940 useless extension candidates. Maximal degree in co-relation 19519. Up to 651 conditions per place. [2021-06-13 06:57:28,940 INFO L132 encePairwiseOnDemand]: 163/184 looper letters, 124 selfloop transitions, 93 changer transitions 27/359 dead transitions. [2021-06-13 06:57:28,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 359 transitions, 4398 flow [2021-06-13 06:57:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 06:57:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-13 06:57:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2533 transitions. [2021-06-13 06:57:28,943 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7647946859903382 [2021-06-13 06:57:28,943 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2533 transitions. [2021-06-13 06:57:28,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2533 transitions. [2021-06-13 06:57:28,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:28,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2533 transitions. [2021-06-13 06:57:28,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 140.72222222222223) internal successors, (2533), 18 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:28,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:28,948 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:28,948 INFO L185 Difference]: Start difference. First operand has 299 places, 288 transitions, 3276 flow. Second operand 18 states and 2533 transitions. [2021-06-13 06:57:28,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 359 transitions, 4398 flow [2021-06-13 06:57:29,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 359 transitions, 4264 flow, removed 28 selfloop flow, removed 7 redundant places. [2021-06-13 06:57:29,126 INFO L241 Difference]: Finished difference. Result has 312 places, 279 transitions, 3345 flow [2021-06-13 06:57:29,126 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3164, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3345, PETRI_PLACES=312, PETRI_TRANSITIONS=279} [2021-06-13 06:57:29,126 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 156 predicate places. [2021-06-13 06:57:29,126 INFO L482 AbstractCegarLoop]: Abstraction has has 312 places, 279 transitions, 3345 flow [2021-06-13 06:57:29,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 134.63636363636363) internal successors, (1481), 11 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,126 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:29,126 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:29,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-13 06:57:29,127 INFO L430 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:29,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:29,127 INFO L82 PathProgramCache]: Analyzing trace with hash -870306226, now seen corresponding path program 1 times [2021-06-13 06:57:29,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:29,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175456378] [2021-06-13 06:57:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:29,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:29,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:29,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:29,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175456378] [2021-06-13 06:57:29,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175456378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:29,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:29,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:29,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141899216] [2021-06-13 06:57:29,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:29,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:29,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:29,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:29,180 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:29,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 279 transitions, 3345 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:29,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:29,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:29,764 INFO L129 PetriNetUnfolder]: 769/3441 cut-off events. [2021-06-13 06:57:29,764 INFO L130 PetriNetUnfolder]: For 40157/40523 co-relation queries the response was YES. [2021-06-13 06:57:29,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13874 conditions, 3441 events. 769/3441 cut-off events. For 40157/40523 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 34657 event pairs, 26 based on Foata normal form. 131/3502 useless extension candidates. Maximal degree in co-relation 13633. Up to 455 conditions per place. [2021-06-13 06:57:29,791 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 84 selfloop transitions, 37 changer transitions 60/338 dead transitions. [2021-06-13 06:57:29,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 338 transitions, 4165 flow [2021-06-13 06:57:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 06:57:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 06:57:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1729 transitions. [2021-06-13 06:57:29,792 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8542490118577075 [2021-06-13 06:57:29,792 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1729 transitions. [2021-06-13 06:57:29,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1729 transitions. [2021-06-13 06:57:29,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:29,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1729 transitions. [2021-06-13 06:57:29,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 157.1818181818182) internal successors, (1729), 11 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,795 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,795 INFO L185 Difference]: Start difference. First operand has 312 places, 279 transitions, 3345 flow. Second operand 11 states and 1729 transitions. [2021-06-13 06:57:29,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 338 transitions, 4165 flow [2021-06-13 06:57:29,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 338 transitions, 3786 flow, removed 23 selfloop flow, removed 22 redundant places. [2021-06-13 06:57:29,903 INFO L241 Difference]: Finished difference. Result has 297 places, 244 transitions, 2451 flow [2021-06-13 06:57:29,903 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3001, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2451, PETRI_PLACES=297, PETRI_TRANSITIONS=244} [2021-06-13 06:57:29,903 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 141 predicate places. [2021-06-13 06:57:29,903 INFO L482 AbstractCegarLoop]: Abstraction has has 297 places, 244 transitions, 2451 flow [2021-06-13 06:57:29,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,903 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:29,904 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:29,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-13 06:57:29,904 INFO L430 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1703351230, now seen corresponding path program 2 times [2021-06-13 06:57:29,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:29,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232930945] [2021-06-13 06:57:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:29,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:29,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:29,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:29,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:29,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:29,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:29,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232930945] [2021-06-13 06:57:29,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232930945] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:29,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:29,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:29,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128124830] [2021-06-13 06:57:29,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:29,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:29,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:29,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:29,960 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:29,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 244 transitions, 2451 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:29,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:29,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:29,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:30,378 INFO L129 PetriNetUnfolder]: 681/2744 cut-off events. [2021-06-13 06:57:30,378 INFO L130 PetriNetUnfolder]: For 26547/26796 co-relation queries the response was YES. [2021-06-13 06:57:30,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10747 conditions, 2744 events. 681/2744 cut-off events. For 26547/26796 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 24801 event pairs, 32 based on Foata normal form. 96/2765 useless extension candidates. Maximal degree in co-relation 10688. Up to 387 conditions per place. [2021-06-13 06:57:30,399 INFO L132 encePairwiseOnDemand]: 172/184 looper letters, 86 selfloop transitions, 45 changer transitions 25/313 dead transitions. [2021-06-13 06:57:30,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 313 transitions, 3426 flow [2021-06-13 06:57:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1882 transitions. [2021-06-13 06:57:30,400 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8523550724637681 [2021-06-13 06:57:30,400 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1882 transitions. [2021-06-13 06:57:30,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1882 transitions. [2021-06-13 06:57:30,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:30,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1882 transitions. [2021-06-13 06:57:30,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,403 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,404 INFO L185 Difference]: Start difference. First operand has 297 places, 244 transitions, 2451 flow. Second operand 12 states and 1882 transitions. [2021-06-13 06:57:30,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 313 transitions, 3426 flow [2021-06-13 06:57:30,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 313 transitions, 2966 flow, removed 46 selfloop flow, removed 31 redundant places. [2021-06-13 06:57:30,458 INFO L241 Difference]: Finished difference. Result has 282 places, 256 transitions, 2366 flow [2021-06-13 06:57:30,458 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2121, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2366, PETRI_PLACES=282, PETRI_TRANSITIONS=256} [2021-06-13 06:57:30,458 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 126 predicate places. [2021-06-13 06:57:30,458 INFO L482 AbstractCegarLoop]: Abstraction has has 282 places, 256 transitions, 2366 flow [2021-06-13 06:57:30,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:30,459 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:30,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-13 06:57:30,459 INFO L430 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1068793654, now seen corresponding path program 3 times [2021-06-13 06:57:30,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:30,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093534958] [2021-06-13 06:57:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:30,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:30,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:30,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:30,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:30,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:30,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:30,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:30,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:30,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:30,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093534958] [2021-06-13 06:57:30,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093534958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:30,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:30,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:30,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539505746] [2021-06-13 06:57:30,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:30,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:30,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:30,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:30,511 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:30,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 256 transitions, 2366 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:30,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:30,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:30,947 INFO L129 PetriNetUnfolder]: 715/3154 cut-off events. [2021-06-13 06:57:30,947 INFO L130 PetriNetUnfolder]: For 21867/22144 co-relation queries the response was YES. [2021-06-13 06:57:30,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10824 conditions, 3154 events. 715/3154 cut-off events. For 21867/22144 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 30310 event pairs, 44 based on Foata normal form. 98/3147 useless extension candidates. Maximal degree in co-relation 10774. Up to 448 conditions per place. [2021-06-13 06:57:30,969 INFO L132 encePairwiseOnDemand]: 173/184 looper letters, 82 selfloop transitions, 52 changer transitions 36/327 dead transitions. [2021-06-13 06:57:30,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 327 transitions, 3347 flow [2021-06-13 06:57:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1885 transitions. [2021-06-13 06:57:30,971 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.853713768115942 [2021-06-13 06:57:30,971 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1885 transitions. [2021-06-13 06:57:30,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1885 transitions. [2021-06-13 06:57:30,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:30,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1885 transitions. [2021-06-13 06:57:30,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 157.08333333333334) internal successors, (1885), 12 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,974 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:30,974 INFO L185 Difference]: Start difference. First operand has 282 places, 256 transitions, 2366 flow. Second operand 12 states and 1885 transitions. [2021-06-13 06:57:30,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 327 transitions, 3347 flow [2021-06-13 06:57:31,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 327 transitions, 3276 flow, removed 20 selfloop flow, removed 3 redundant places. [2021-06-13 06:57:31,017 INFO L241 Difference]: Finished difference. Result has 295 places, 262 transitions, 2531 flow [2021-06-13 06:57:31,018 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2531, PETRI_PLACES=295, PETRI_TRANSITIONS=262} [2021-06-13 06:57:31,018 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 139 predicate places. [2021-06-13 06:57:31,018 INFO L482 AbstractCegarLoop]: Abstraction has has 295 places, 262 transitions, 2531 flow [2021-06-13 06:57:31,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,018 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:31,018 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:31,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-13 06:57:31,018 INFO L430 AbstractCegarLoop]: === Iteration 25 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:31,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1138467990, now seen corresponding path program 4 times [2021-06-13 06:57:31,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:31,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238017162] [2021-06-13 06:57:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:31,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:31,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:31,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:31,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:31,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:31,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238017162] [2021-06-13 06:57:31,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238017162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:31,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:31,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 06:57:31,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927128520] [2021-06-13 06:57:31,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 06:57:31,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:31,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 06:57:31,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-13 06:57:31,048 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 184 [2021-06-13 06:57:31,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 262 transitions, 2531 flow. Second operand has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:31,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 184 [2021-06-13 06:57:31,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:31,370 INFO L129 PetriNetUnfolder]: 511/2972 cut-off events. [2021-06-13 06:57:31,370 INFO L130 PetriNetUnfolder]: For 21214/21718 co-relation queries the response was YES. [2021-06-13 06:57:31,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9753 conditions, 2972 events. 511/2972 cut-off events. For 21214/21718 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 30270 event pairs, 31 based on Foata normal form. 98/2955 useless extension candidates. Maximal degree in co-relation 9698. Up to 339 conditions per place. [2021-06-13 06:57:31,393 INFO L132 encePairwiseOnDemand]: 181/184 looper letters, 52 selfloop transitions, 10 changer transitions 1/273 dead transitions. [2021-06-13 06:57:31,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 273 transitions, 2770 flow [2021-06-13 06:57:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 06:57:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-13 06:57:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 678 transitions. [2021-06-13 06:57:31,394 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9211956521739131 [2021-06-13 06:57:31,394 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 678 transitions. [2021-06-13 06:57:31,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 678 transitions. [2021-06-13 06:57:31,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:31,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 678 transitions. [2021-06-13 06:57:31,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,395 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,395 INFO L185 Difference]: Start difference. First operand has 295 places, 262 transitions, 2531 flow. Second operand 4 states and 678 transitions. [2021-06-13 06:57:31,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 273 transitions, 2770 flow [2021-06-13 06:57:31,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 273 transitions, 2650 flow, removed 11 selfloop flow, removed 8 redundant places. [2021-06-13 06:57:31,443 INFO L241 Difference]: Finished difference. Result has 292 places, 263 transitions, 2467 flow [2021-06-13 06:57:31,443 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2413, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2467, PETRI_PLACES=292, PETRI_TRANSITIONS=263} [2021-06-13 06:57:31,443 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 136 predicate places. [2021-06-13 06:57:31,443 INFO L482 AbstractCegarLoop]: Abstraction has has 292 places, 263 transitions, 2467 flow [2021-06-13 06:57:31,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,443 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:31,443 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:31,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-13 06:57:31,444 INFO L430 AbstractCegarLoop]: === Iteration 26 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:31,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1384589812, now seen corresponding path program 5 times [2021-06-13 06:57:31,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:31,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464184811] [2021-06-13 06:57:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:31,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:31,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:31,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:31,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:31,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:31,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:31,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:31,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:31,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:31,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464184811] [2021-06-13 06:57:31,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464184811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:31,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:31,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:31,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835928724] [2021-06-13 06:57:31,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:31,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:31,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:31,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:31,497 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:31,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 263 transitions, 2467 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:31,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:31,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:31,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:31,987 INFO L129 PetriNetUnfolder]: 697/3318 cut-off events. [2021-06-13 06:57:31,987 INFO L130 PetriNetUnfolder]: For 24839/25340 co-relation queries the response was YES. [2021-06-13 06:57:32,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11494 conditions, 3318 events. 697/3318 cut-off events. For 24839/25340 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 32865 event pairs, 38 based on Foata normal form. 216/3419 useless extension candidates. Maximal degree in co-relation 11437. Up to 420 conditions per place. [2021-06-13 06:57:32,014 INFO L132 encePairwiseOnDemand]: 173/184 looper letters, 77 selfloop transitions, 52 changer transitions 47/333 dead transitions. [2021-06-13 06:57:32,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 333 transitions, 3573 flow [2021-06-13 06:57:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 06:57:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 06:57:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2185 transitions. [2021-06-13 06:57:32,018 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2021-06-13 06:57:32,018 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2185 transitions. [2021-06-13 06:57:32,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2185 transitions. [2021-06-13 06:57:32,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:32,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2185 transitions. [2021-06-13 06:57:32,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 156.07142857142858) internal successors, (2185), 14 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,022 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,022 INFO L185 Difference]: Start difference. First operand has 292 places, 263 transitions, 2467 flow. Second operand 14 states and 2185 transitions. [2021-06-13 06:57:32,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 333 transitions, 3573 flow [2021-06-13 06:57:32,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 333 transitions, 3501 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-06-13 06:57:32,077 INFO L241 Difference]: Finished difference. Result has 307 places, 261 transitions, 2606 flow [2021-06-13 06:57:32,077 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2382, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2606, PETRI_PLACES=307, PETRI_TRANSITIONS=261} [2021-06-13 06:57:32,077 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 151 predicate places. [2021-06-13 06:57:32,077 INFO L482 AbstractCegarLoop]: Abstraction has has 307 places, 261 transitions, 2606 flow [2021-06-13 06:57:32,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,078 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:32,078 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:32,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-13 06:57:32,078 INFO L430 AbstractCegarLoop]: === Iteration 27 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:32,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:32,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1369038345, now seen corresponding path program 1 times [2021-06-13 06:57:32,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:32,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105236777] [2021-06-13 06:57:32,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:32,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:32,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:32,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:32,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105236777] [2021-06-13 06:57:32,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105236777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:32,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:32,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:32,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649365468] [2021-06-13 06:57:32,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:32,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:32,123 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:32,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 261 transitions, 2606 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:32,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:32,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:32,495 INFO L129 PetriNetUnfolder]: 524/2640 cut-off events. [2021-06-13 06:57:32,495 INFO L130 PetriNetUnfolder]: For 24951/25482 co-relation queries the response was YES. [2021-06-13 06:57:32,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10077 conditions, 2640 events. 524/2640 cut-off events. For 24951/25482 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 24471 event pairs, 37 based on Foata normal form. 212/2753 useless extension candidates. Maximal degree in co-relation 10016. Up to 289 conditions per place. [2021-06-13 06:57:32,515 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 75 selfloop transitions, 39 changer transitions 44/297 dead transitions. [2021-06-13 06:57:32,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 297 transitions, 3283 flow [2021-06-13 06:57:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 06:57:32,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 06:57:32,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1705 transitions. [2021-06-13 06:57:32,516 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.842391304347826 [2021-06-13 06:57:32,516 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1705 transitions. [2021-06-13 06:57:32,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1705 transitions. [2021-06-13 06:57:32,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:32,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1705 transitions. [2021-06-13 06:57:32,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 155.0) internal successors, (1705), 11 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,519 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,519 INFO L185 Difference]: Start difference. First operand has 307 places, 261 transitions, 2606 flow. Second operand 11 states and 1705 transitions. [2021-06-13 06:57:32,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 297 transitions, 3283 flow [2021-06-13 06:57:32,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 297 transitions, 3152 flow, removed 15 selfloop flow, removed 13 redundant places. [2021-06-13 06:57:32,576 INFO L241 Difference]: Finished difference. Result has 306 places, 229 transitions, 2006 flow [2021-06-13 06:57:32,576 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2484, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2006, PETRI_PLACES=306, PETRI_TRANSITIONS=229} [2021-06-13 06:57:32,576 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 150 predicate places. [2021-06-13 06:57:32,576 INFO L482 AbstractCegarLoop]: Abstraction has has 306 places, 229 transitions, 2006 flow [2021-06-13 06:57:32,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,576 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:32,576 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:32,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-13 06:57:32,577 INFO L430 AbstractCegarLoop]: === Iteration 28 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:32,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:32,577 INFO L82 PathProgramCache]: Analyzing trace with hash -860490639, now seen corresponding path program 2 times [2021-06-13 06:57:32,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:32,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102796368] [2021-06-13 06:57:32,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:32,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:32,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:32,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:32,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:32,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:32,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102796368] [2021-06-13 06:57:32,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102796368] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:32,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:32,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:32,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524510157] [2021-06-13 06:57:32,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:32,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:32,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:32,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:32,626 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:32,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 229 transitions, 2006 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:32,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:32,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:32,974 INFO L129 PetriNetUnfolder]: 475/2343 cut-off events. [2021-06-13 06:57:32,975 INFO L130 PetriNetUnfolder]: For 15116/15423 co-relation queries the response was YES. [2021-06-13 06:57:32,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8239 conditions, 2343 events. 475/2343 cut-off events. For 15116/15423 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 20821 event pairs, 40 based on Foata normal form. 209/2434 useless extension candidates. Maximal degree in co-relation 8181. Up to 173 conditions per place. [2021-06-13 06:57:32,993 INFO L132 encePairwiseOnDemand]: 172/184 looper letters, 78 selfloop transitions, 42 changer transitions 29/280 dead transitions. [2021-06-13 06:57:32,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 280 transitions, 2900 flow [2021-06-13 06:57:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 06:57:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 06:57:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1867 transitions. [2021-06-13 06:57:32,994 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8455615942028986 [2021-06-13 06:57:32,994 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1867 transitions. [2021-06-13 06:57:32,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1867 transitions. [2021-06-13 06:57:32,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:32,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1867 transitions. [2021-06-13 06:57:32,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 155.58333333333334) internal successors, (1867), 12 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,998 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:32,998 INFO L185 Difference]: Start difference. First operand has 306 places, 229 transitions, 2006 flow. Second operand 12 states and 1867 transitions. [2021-06-13 06:57:32,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 280 transitions, 2900 flow [2021-06-13 06:57:33,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 280 transitions, 2423 flow, removed 35 selfloop flow, removed 40 redundant places. [2021-06-13 06:57:33,031 INFO L241 Difference]: Finished difference. Result has 279 places, 226 transitions, 1802 flow [2021-06-13 06:57:33,031 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1639, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1802, PETRI_PLACES=279, PETRI_TRANSITIONS=226} [2021-06-13 06:57:33,032 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 123 predicate places. [2021-06-13 06:57:33,032 INFO L482 AbstractCegarLoop]: Abstraction has has 279 places, 226 transitions, 1802 flow [2021-06-13 06:57:33,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,032 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:33,032 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:33,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-13 06:57:33,032 INFO L430 AbstractCegarLoop]: === Iteration 29 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:33,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1723382554, now seen corresponding path program 1 times [2021-06-13 06:57:33,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:33,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116660556] [2021-06-13 06:57:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:33,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:33,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:33,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116660556] [2021-06-13 06:57:33,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116660556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:33,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:33,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:33,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022822284] [2021-06-13 06:57:33,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:33,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:33,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:33,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:33,082 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:33,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 226 transitions, 1802 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:33,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:33,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:33,324 INFO L129 PetriNetUnfolder]: 364/1848 cut-off events. [2021-06-13 06:57:33,324 INFO L130 PetriNetUnfolder]: For 9449/9749 co-relation queries the response was YES. [2021-06-13 06:57:33,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6114 conditions, 1848 events. 364/1848 cut-off events. For 9449/9749 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 15107 event pairs, 26 based on Foata normal form. 208/1949 useless extension candidates. Maximal degree in co-relation 6066. Up to 155 conditions per place. [2021-06-13 06:57:33,336 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 36 selfloop transitions, 19 changer transitions 74/248 dead transitions. [2021-06-13 06:57:33,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 248 transitions, 2262 flow [2021-06-13 06:57:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 06:57:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 06:57:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1543 transitions. [2021-06-13 06:57:33,337 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8385869565217391 [2021-06-13 06:57:33,337 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1543 transitions. [2021-06-13 06:57:33,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1543 transitions. [2021-06-13 06:57:33,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:33,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1543 transitions. [2021-06-13 06:57:33,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 154.3) internal successors, (1543), 10 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,340 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 184.0) internal successors, (2024), 11 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,340 INFO L185 Difference]: Start difference. First operand has 279 places, 226 transitions, 1802 flow. Second operand 10 states and 1543 transitions. [2021-06-13 06:57:33,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 248 transitions, 2262 flow [2021-06-13 06:57:33,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 248 transitions, 2148 flow, removed 18 selfloop flow, removed 12 redundant places. [2021-06-13 06:57:33,364 INFO L241 Difference]: Finished difference. Result has 272 places, 168 transitions, 1020 flow [2021-06-13 06:57:33,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1020, PETRI_PLACES=272, PETRI_TRANSITIONS=168} [2021-06-13 06:57:33,364 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 116 predicate places. [2021-06-13 06:57:33,364 INFO L482 AbstractCegarLoop]: Abstraction has has 272 places, 168 transitions, 1020 flow [2021-06-13 06:57:33,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,364 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:33,364 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:33,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-13 06:57:33,365 INFO L430 AbstractCegarLoop]: === Iteration 30 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:33,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2023481873, now seen corresponding path program 3 times [2021-06-13 06:57:33,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:33,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752446392] [2021-06-13 06:57:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:33,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:33,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:33,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752446392] [2021-06-13 06:57:33,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752446392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:33,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:33,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:33,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572001916] [2021-06-13 06:57:33,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:33,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:33,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:33,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:33,414 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:33,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 168 transitions, 1020 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:33,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:33,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:33,671 INFO L129 PetriNetUnfolder]: 307/1629 cut-off events. [2021-06-13 06:57:33,671 INFO L130 PetriNetUnfolder]: For 6535/6642 co-relation queries the response was YES. [2021-06-13 06:57:33,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4926 conditions, 1629 events. 307/1629 cut-off events. For 6535/6642 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13349 event pairs, 48 based on Foata normal form. 51/1578 useless extension candidates. Maximal degree in co-relation 4881. Up to 148 conditions per place. [2021-06-13 06:57:33,679 INFO L132 encePairwiseOnDemand]: 173/184 looper letters, 36 selfloop transitions, 24 changer transitions 28/203 dead transitions. [2021-06-13 06:57:33,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 203 transitions, 1551 flow [2021-06-13 06:57:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 06:57:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 06:57:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2148 transitions. [2021-06-13 06:57:33,680 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8338509316770186 [2021-06-13 06:57:33,680 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2148 transitions. [2021-06-13 06:57:33,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2148 transitions. [2021-06-13 06:57:33,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:33,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2148 transitions. [2021-06-13 06:57:33,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 153.42857142857142) internal successors, (2148), 14 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,684 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,684 INFO L185 Difference]: Start difference. First operand has 272 places, 168 transitions, 1020 flow. Second operand 14 states and 2148 transitions. [2021-06-13 06:57:33,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 203 transitions, 1551 flow [2021-06-13 06:57:33,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 203 transitions, 1225 flow, removed 19 selfloop flow, removed 49 redundant places. [2021-06-13 06:57:33,698 INFO L241 Difference]: Finished difference. Result has 219 places, 163 transitions, 840 flow [2021-06-13 06:57:33,699 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=840, PETRI_PLACES=219, PETRI_TRANSITIONS=163} [2021-06-13 06:57:33,699 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 63 predicate places. [2021-06-13 06:57:33,699 INFO L482 AbstractCegarLoop]: Abstraction has has 219 places, 163 transitions, 840 flow [2021-06-13 06:57:33,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,699 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:33,699 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:33,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-13 06:57:33,700 INFO L430 AbstractCegarLoop]: === Iteration 31 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:33,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:33,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1127066231, now seen corresponding path program 4 times [2021-06-13 06:57:33,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:33,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091598105] [2021-06-13 06:57:33,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:33,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:33,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:33,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091598105] [2021-06-13 06:57:33,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091598105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:33,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:33,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 06:57:33,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033324013] [2021-06-13 06:57:33,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 06:57:33,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:33,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 06:57:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-13 06:57:33,724 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 184 [2021-06-13 06:57:33,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 163 transitions, 840 flow. Second operand has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:33,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 184 [2021-06-13 06:57:33,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:33,817 INFO L129 PetriNetUnfolder]: 168/1062 cut-off events. [2021-06-13 06:57:33,817 INFO L130 PetriNetUnfolder]: For 4268/4353 co-relation queries the response was YES. [2021-06-13 06:57:33,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1062 events. 168/1062 cut-off events. For 4268/4353 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7695 event pairs, 11 based on Foata normal form. 57/1037 useless extension candidates. Maximal degree in co-relation 2835. Up to 89 conditions per place. [2021-06-13 06:57:33,823 INFO L132 encePairwiseOnDemand]: 181/184 looper letters, 25 selfloop transitions, 8 changer transitions 1/168 dead transitions. [2021-06-13 06:57:33,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 168 transitions, 952 flow [2021-06-13 06:57:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 06:57:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-13 06:57:33,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 674 transitions. [2021-06-13 06:57:33,824 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9157608695652174 [2021-06-13 06:57:33,824 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 674 transitions. [2021-06-13 06:57:33,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 674 transitions. [2021-06-13 06:57:33,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:33,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 674 transitions. [2021-06-13 06:57:33,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,826 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,826 INFO L185 Difference]: Start difference. First operand has 219 places, 163 transitions, 840 flow. Second operand 4 states and 674 transitions. [2021-06-13 06:57:33,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 168 transitions, 952 flow [2021-06-13 06:57:33,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 168 transitions, 771 flow, removed 27 selfloop flow, removed 25 redundant places. [2021-06-13 06:57:33,833 INFO L241 Difference]: Finished difference. Result has 193 places, 163 transitions, 702 flow [2021-06-13 06:57:33,834 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=702, PETRI_PLACES=193, PETRI_TRANSITIONS=163} [2021-06-13 06:57:33,834 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 37 predicate places. [2021-06-13 06:57:33,834 INFO L482 AbstractCegarLoop]: Abstraction has has 193 places, 163 transitions, 702 flow [2021-06-13 06:57:33,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,834 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 06:57:33,834 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 06:57:33,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-13 06:57:33,834 INFO L430 AbstractCegarLoop]: === Iteration 32 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 06:57:33,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 06:57:33,835 INFO L82 PathProgramCache]: Analyzing trace with hash 821845364, now seen corresponding path program 1 times [2021-06-13 06:57:33,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 06:57:33,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189420900] [2021-06-13 06:57:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 06:57:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 06:57:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 06:57:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 06:57:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 06:57:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 06:57:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 06:57:33,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 06:57:33,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189420900] [2021-06-13 06:57:33,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189420900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 06:57:33,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 06:57:33,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 06:57:33,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486394086] [2021-06-13 06:57:33,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 06:57:33,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 06:57:33,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 06:57:33,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-13 06:57:33,889 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 184 [2021-06-13 06:57:33,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 163 transitions, 702 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:33,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 06:57:33,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 184 [2021-06-13 06:57:33,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 06:57:34,023 INFO L129 PetriNetUnfolder]: 231/1172 cut-off events. [2021-06-13 06:57:34,024 INFO L130 PetriNetUnfolder]: For 4416/4503 co-relation queries the response was YES. [2021-06-13 06:57:34,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3176 conditions, 1172 events. 231/1172 cut-off events. For 4416/4503 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8128 event pairs, 18 based on Foata normal form. 57/1137 useless extension candidates. Maximal degree in co-relation 3149. Up to 114 conditions per place. [2021-06-13 06:57:34,027 INFO L132 encePairwiseOnDemand]: 174/184 looper letters, 0 selfloop transitions, 0 changer transitions 178/178 dead transitions. [2021-06-13 06:57:34,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 178 transitions, 952 flow [2021-06-13 06:57:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 06:57:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 06:57:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1379 transitions. [2021-06-13 06:57:34,029 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8327294685990339 [2021-06-13 06:57:34,029 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1379 transitions. [2021-06-13 06:57:34,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1379 transitions. [2021-06-13 06:57:34,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 06:57:34,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1379 transitions. [2021-06-13 06:57:34,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:34,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:34,032 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:34,032 INFO L185 Difference]: Start difference. First operand has 193 places, 163 transitions, 702 flow. Second operand 9 states and 1379 transitions. [2021-06-13 06:57:34,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 178 transitions, 952 flow [2021-06-13 06:57:34,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 178 transitions, 930 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-06-13 06:57:34,038 INFO L241 Difference]: Finished difference. Result has 198 places, 0 transitions, 0 flow [2021-06-13 06:57:34,038 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=198, PETRI_TRANSITIONS=0} [2021-06-13 06:57:34,038 INFO L335 CegarLoopForPetriNet]: 156 programPoint places, 42 predicate places. [2021-06-13 06:57:34,038 INFO L482 AbstractCegarLoop]: Abstraction has has 198 places, 0 transitions, 0 flow [2021-06-13 06:57:34,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 06:57:34,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-13 06:57:34,038 INFO L301 ceAbstractionStarter]: Result for error location qrcu_updaterThread1of1ForFork0 was SAFE (3/3) [2021-06-13 06:57:34,039 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 06:57:34,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 06:57:34 BasicIcfg [2021-06-13 06:57:34,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 06:57:34,042 INFO L168 Benchmark]: Toolchain (without parser) took 26589.54 ms. Allocated memory was 181.4 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 142.9 MB in the beginning and 2.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 666.0 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 181.4 MB. Free memory was 161.0 MB in the beginning and 160.9 MB in the end (delta: 83.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.24 ms. Allocated memory is still 181.4 MB. Free memory was 142.7 MB in the beginning and 139.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 181.4 MB. Free memory was 139.8 MB in the beginning and 137.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: Boogie Preprocessor took 24.14 ms. Allocated memory is still 181.4 MB. Free memory was 137.0 MB in the beginning and 135.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: RCFGBuilder took 844.71 ms. Allocated memory is still 181.4 MB. Free memory was 134.5 MB in the beginning and 133.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 78.3 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L168 Benchmark]: TraceAbstraction took 25313.75 ms. Allocated memory was 181.4 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 132.8 MB in the beginning and 2.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 655.2 MB. Max. memory is 8.0 GB. [2021-06-13 06:57:34,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 181.4 MB. Free memory was 161.0 MB in the beginning and 160.9 MB in the end (delta: 83.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 368.24 ms. Allocated memory is still 181.4 MB. Free memory was 142.7 MB in the beginning and 139.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 181.4 MB. Free memory was 139.8 MB in the beginning and 137.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.14 ms. Allocated memory is still 181.4 MB. Free memory was 137.0 MB in the beginning and 135.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 844.71 ms. Allocated memory is still 181.4 MB. Free memory was 134.5 MB in the beginning and 133.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 78.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25313.75 ms. Allocated memory was 181.4 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 132.8 MB in the beginning and 2.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 655.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 for errors in thread instance: qrcu_updater with 1 thread instances CFG has 7 procedures, 264 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 58.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 55.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 264 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 48.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: qrcu_updaterThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 264 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 25055.0ms, OverallIterations: 32, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 22661.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 727 SDtfs, 2737 SDslu, 1574 SDs, 0 SdLazy, 6321 SolverSat, 580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2616.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 1878.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3345occurred in iteration=21, InterpolantAutomatonStates: 323, 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: 68.7ms SsaConstructionTime, 272.9ms SatisfiabilityAnalysisTime, 1712.6ms InterpolantComputationTime, 2562 NumberOfCodeBlocks, 2562 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2530 ConstructedInterpolants, 0 QuantifiedInterpolants, 12780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 32 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...