/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:26:51,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:26:51,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:26:51,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 16:26:51,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 16:26:51,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 16:26:51,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 16:26:51,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 16:26:51,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 16:26:51,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 16:26:51,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 16:26:51,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 16:26:51,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:26:51,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:26:51,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:26:51,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:26:51,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:26:51,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:26:51,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:26:51,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:26:51,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:26:51,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:26:51,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:26:51,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:26:51,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 16:26:51,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 16:26:51,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 16:26:51,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 16:26:51,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 16:26:51,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 16:26:51,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 16:26:51,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 16:26:51,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 16:26:51,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 16:26:51,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 16:26:51,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 16:26:51,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 16:26:51,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 16:26:51,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:26:51,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:26:51,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:26:51,938 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-FA-NoLbe.epf [2021-07-09 16:26:51,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:26:51,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:26:51,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:26:51,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:26:51,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:26:51,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:26:51,967 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:26:51,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:26:51,968 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:26:51,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:26:51,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:26:51,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:26:51,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:26:51,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:26:51,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:26:51,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:26:51,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:26:51,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:26:52,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:26:52,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:26:52,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:26:52,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:26:52,245 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:26:52,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-07-09 16:26:52,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ff6c3a9/e07986df816046e8ad63cc6d3f7c15b9/FLAGa7826e868 [2021-07-09 16:26:52,690 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:26:52,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2021-07-09 16:26:52,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ff6c3a9/e07986df816046e8ad63cc6d3f7c15b9/FLAGa7826e868 [2021-07-09 16:26:52,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ff6c3a9/e07986df816046e8ad63cc6d3f7c15b9 [2021-07-09 16:26:52,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:26:52,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:26:52,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:26:52,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:26:52,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:26:52,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:26:52" (1/1) ... [2021-07-09 16:26:52,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea6ab80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:52, skipping insertion in model container [2021-07-09 16:26:52,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:26:52" (1/1) ... [2021-07-09 16:26:52,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:26:52,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:26:53,095 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] [2021-07-09 16:26:53,098 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] [2021-07-09 16:26:53,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:26:53,124 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:26:53,154 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] [2021-07-09 16:26:53,155 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] [2021-07-09 16:26:53,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:26:53,197 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:26:53,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53 WrapperNode [2021-07-09 16:26:53,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:26:53,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:26:53,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:26:53,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:26:53,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:26:53,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:26:53,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:26:53,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:26:53,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (1/1) ... [2021-07-09 16:26:53,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:26:53,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:26:53,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:26:53,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:26:53,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (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 [2021-07-09 16:26:53,344 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2021-07-09 16:26:53,344 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2021-07-09 16:26:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2021-07-09 16:26:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:26:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:26:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:26:53,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:26:54,102 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:26:54,102 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:26:54,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:26:54 BoogieIcfgContainer [2021-07-09 16:26:54,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:26:54,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:26:54,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:26:54,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:26:54,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:26:52" (1/3) ... [2021-07-09 16:26:54,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702b1a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:26:54, skipping insertion in model container [2021-07-09 16:26:54,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:26:53" (2/3) ... [2021-07-09 16:26:54,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702b1a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:26:54, skipping insertion in model container [2021-07-09 16:26:54,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:26:54" (3/3) ... [2021-07-09 16:26:54,108 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2021-07-09 16:26:54,113 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:26:54,113 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:26:54,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-09 16:26:54,114 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:26:54,141 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,142 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,148 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,161 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,162 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,163 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,164 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,165 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,166 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,167 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,168 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,169 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,170 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,171 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,172 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,173 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,174 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,175 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,176 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,177 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,178 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,179 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,180 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,181 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,182 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,182 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,182 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,182 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,184 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,192 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,192 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,193 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,194 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,195 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,196 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,198 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,199 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,200 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,205 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,205 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,205 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,205 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,206 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,207 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,207 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,208 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,209 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,209 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,209 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,209 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:26:54,220 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-07-09 16:26:54,236 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 16:26:54,252 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:26:54,252 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:26:54,252 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:26:54,253 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:26:54,253 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:26:54,253 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:26:54,253 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:26:54,253 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:26:54,264 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 184 transitions, 410 flow [2021-07-09 16:26:54,330 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2548 states, 2547 states have (on average 3.0647820965842167) internal successors, (7806), 2547 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:26:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 2548 states, 2547 states have (on average 3.0647820965842167) internal successors, (7806), 2547 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:26:54,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:26:54,358 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-09 16:26:54,360 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:26:54,365 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:26:54,365 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:26:54,365 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:26:54,365 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:26:54,365 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:26:54,365 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:26:54,365 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:26:54,365 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == qrcu_updaterThread1of1ForFork0======== [2021-07-09 16:26:54,371 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 184 transitions, 410 flow [2021-07-09 16:26:56,672 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 92144 states, 92142 states have (on average 4.131590371383299) internal successors, (380693), 92143 states have internal predecessors, (380693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:26:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 92144 states, 92142 states have (on average 4.131590371383299) internal successors, (380693), 92143 states have internal predecessors, (380693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:26:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 16:26:56,864 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:26:56,865 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:26:56,865 INFO L430 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:26:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:26:56,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1400416887, now seen corresponding path program 1 times [2021-07-09 16:26:56,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:26:56,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233606983] [2021-07-09 16:26:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:26:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:26:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:26:57,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:26:57,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233606983] [2021-07-09 16:26:57,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233606983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:26:57,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:26:57,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 16:26:57,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714883611] [2021-07-09 16:26:57,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:26:57,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:26:57,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:26:57,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:26:57,289 INFO L87 Difference]: Start difference. First operand has 92144 states, 92142 states have (on average 4.131590371383299) internal successors, (380693), 92143 states have internal predecessors, (380693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:26:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:26:58,802 INFO L93 Difference]: Finished difference Result 105928 states and 410032 transitions. [2021-07-09 16:26:58,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:26:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-09 16:26:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:26:59,672 INFO L225 Difference]: With dead ends: 105928 [2021-07-09 16:26:59,672 INFO L226 Difference]: Without dead ends: 105928 [2021-07-09 16:26:59,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105928 states. [2021-07-09 16:27:05,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105928 to 93867. [2021-07-09 16:27:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93867 states, 93865 states have (on average 3.899472646886486) internal successors, (366024), 93866 states have internal predecessors, (366024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93867 states to 93867 states and 366024 transitions. [2021-07-09 16:27:06,543 INFO L78 Accepts]: Start accepts. Automaton has 93867 states and 366024 transitions. Word has length 55 [2021-07-09 16:27:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:06,544 INFO L482 AbstractCegarLoop]: Abstraction has 93867 states and 366024 transitions. [2021-07-09 16:27:06,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 93867 states and 366024 transitions. [2021-07-09 16:27:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:27:06,613 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:06,613 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:06,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:27:06,613 INFO L430 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:06,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:06,614 INFO L82 PathProgramCache]: Analyzing trace with hash 566486812, now seen corresponding path program 1 times [2021-07-09 16:27:06,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:06,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466923813] [2021-07-09 16:27:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:06,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:06,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466923813] [2021-07-09 16:27:06,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466923813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:06,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:06,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-09 16:27:06,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637418952] [2021-07-09 16:27:06,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:27:06,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:06,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:27:06,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:06,750 INFO L87 Difference]: Start difference. First operand 93867 states and 366024 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:07,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:07,598 INFO L93 Difference]: Finished difference Result 92622 states and 361163 transitions. [2021-07-09 16:27:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:27:07,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:27:07,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:08,485 INFO L225 Difference]: With dead ends: 92622 [2021-07-09 16:27:08,485 INFO L226 Difference]: Without dead ends: 92622 [2021-07-09 16:27:08,486 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92622 states. [2021-07-09 16:27:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92622 to 92622. [2021-07-09 16:27:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92622 states, 92620 states have (on average 3.8994061757719716) internal successors, (361163), 92621 states have internal predecessors, (361163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92622 states to 92622 states and 361163 transitions. [2021-07-09 16:27:13,781 INFO L78 Accepts]: Start accepts. Automaton has 92622 states and 361163 transitions. Word has length 60 [2021-07-09 16:27:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:13,782 INFO L482 AbstractCegarLoop]: Abstraction has 92622 states and 361163 transitions. [2021-07-09 16:27:13,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 92622 states and 361163 transitions. [2021-07-09 16:27:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 16:27:13,841 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:13,841 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:13,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:27:13,841 INFO L430 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:13,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:13,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1282967431, now seen corresponding path program 1 times [2021-07-09 16:27:13,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:13,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180423977] [2021-07-09 16:27:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:13,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:13,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180423977] [2021-07-09 16:27:13,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180423977] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:13,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:13,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 16:27:13,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029440057] [2021-07-09 16:27:13,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:27:13,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:13,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:27:13,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:27:13,912 INFO L87 Difference]: Start difference. First operand 92622 states and 361163 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:15,299 INFO L93 Difference]: Finished difference Result 113020 states and 435314 transitions. [2021-07-09 16:27:15,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:27:15,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-09 16:27:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:15,981 INFO L225 Difference]: With dead ends: 113020 [2021-07-09 16:27:15,982 INFO L226 Difference]: Without dead ends: 107851 [2021-07-09 16:27:15,982 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:27:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107851 states. [2021-07-09 16:27:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107851 to 107718. [2021-07-09 16:27:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107718 states, 107716 states have (on average 3.8566415388614503) internal successors, (415422), 107717 states have internal predecessors, (415422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107718 states to 107718 states and 415422 transitions. [2021-07-09 16:27:21,827 INFO L78 Accepts]: Start accepts. Automaton has 107718 states and 415422 transitions. Word has length 63 [2021-07-09 16:27:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:21,828 INFO L482 AbstractCegarLoop]: Abstraction has 107718 states and 415422 transitions. [2021-07-09 16:27:21,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 107718 states and 415422 transitions. [2021-07-09 16:27:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:27:21,944 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:21,944 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:21,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:27:21,944 INFO L430 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:21,944 INFO L82 PathProgramCache]: Analyzing trace with hash -398924547, now seen corresponding path program 1 times [2021-07-09 16:27:21,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:21,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698494490] [2021-07-09 16:27:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:22,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:22,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698494490] [2021-07-09 16:27:22,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698494490] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:22,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:22,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:27:22,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52209104] [2021-07-09 16:27:22,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:27:22,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:22,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:27:22,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:27:22,058 INFO L87 Difference]: Start difference. First operand 107718 states and 415422 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:23,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:23,554 INFO L93 Difference]: Finished difference Result 115814 states and 439888 transitions. [2021-07-09 16:27:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:27:23,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-09 16:27:23,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:24,215 INFO L225 Difference]: With dead ends: 115814 [2021-07-09 16:27:24,216 INFO L226 Difference]: Without dead ends: 115782 [2021-07-09 16:27:24,216 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:27:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115782 states. [2021-07-09 16:27:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115782 to 112214. [2021-07-09 16:27:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112214 states, 112212 states have (on average 3.7985242220083415) internal successors, (426240), 112213 states have internal predecessors, (426240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112214 states to 112214 states and 426240 transitions. [2021-07-09 16:27:29,990 INFO L78 Accepts]: Start accepts. Automaton has 112214 states and 426240 transitions. Word has length 69 [2021-07-09 16:27:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:29,991 INFO L482 AbstractCegarLoop]: Abstraction has 112214 states and 426240 transitions. [2021-07-09 16:27:29,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 112214 states and 426240 transitions. [2021-07-09 16:27:30,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:27:30,099 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:30,100 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:30,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:27:30,100 INFO L430 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:30,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1639623555, now seen corresponding path program 1 times [2021-07-09 16:27:30,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:30,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456449980] [2021-07-09 16:27:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:30,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:30,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456449980] [2021-07-09 16:27:30,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456449980] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:30,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:30,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:27:30,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884931276] [2021-07-09 16:27:30,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:27:30,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:30,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:27:30,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:27:30,190 INFO L87 Difference]: Start difference. First operand 112214 states and 426240 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:31,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:31,718 INFO L93 Difference]: Finished difference Result 119990 states and 451910 transitions. [2021-07-09 16:27:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:27:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-09 16:27:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:32,889 INFO L225 Difference]: With dead ends: 119990 [2021-07-09 16:27:32,889 INFO L226 Difference]: Without dead ends: 119990 [2021-07-09 16:27:32,890 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119990 states. [2021-07-09 16:27:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119990 to 111423. [2021-07-09 16:27:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111423 states, 111421 states have (on average 3.792040997657533) internal successors, (422513), 111422 states have internal predecessors, (422513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111423 states to 111423 states and 422513 transitions. [2021-07-09 16:27:38,863 INFO L78 Accepts]: Start accepts. Automaton has 111423 states and 422513 transitions. Word has length 69 [2021-07-09 16:27:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:38,863 INFO L482 AbstractCegarLoop]: Abstraction has 111423 states and 422513 transitions. [2021-07-09 16:27:38,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 111423 states and 422513 transitions. [2021-07-09 16:27:39,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:27:39,341 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:39,341 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:39,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:27:39,341 INFO L430 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:39,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:39,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1506439685, now seen corresponding path program 2 times [2021-07-09 16:27:39,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:39,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105226354] [2021-07-09 16:27:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:39,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:39,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:39,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105226354] [2021-07-09 16:27:39,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105226354] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:39,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:39,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:27:39,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8643192] [2021-07-09 16:27:39,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:27:39,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:39,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:27:39,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:27:39,398 INFO L87 Difference]: Start difference. First operand 111423 states and 422513 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:40,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:40,637 INFO L93 Difference]: Finished difference Result 136612 states and 511856 transitions. [2021-07-09 16:27:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:27:40,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-09 16:27:40,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:40,861 INFO L225 Difference]: With dead ends: 136612 [2021-07-09 16:27:40,861 INFO L226 Difference]: Without dead ends: 59635 [2021-07-09 16:27:40,861 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 46.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59635 states. [2021-07-09 16:27:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59635 to 59103. [2021-07-09 16:27:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59103 states, 59101 states have (on average 3.5635437640649057) internal successors, (210609), 59102 states have internal predecessors, (210609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59103 states to 59103 states and 210609 transitions. [2021-07-09 16:27:43,165 INFO L78 Accepts]: Start accepts. Automaton has 59103 states and 210609 transitions. Word has length 69 [2021-07-09 16:27:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:43,165 INFO L482 AbstractCegarLoop]: Abstraction has 59103 states and 210609 transitions. [2021-07-09 16:27:43,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 59103 states and 210609 transitions. [2021-07-09 16:27:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:27:43,207 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:43,207 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:43,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:27:43,207 INFO L430 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1882083365, now seen corresponding path program 1 times [2021-07-09 16:27:43,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:43,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145496344] [2021-07-09 16:27:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:43,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:43,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145496344] [2021-07-09 16:27:43,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145496344] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:43,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:43,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-09 16:27:43,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898900079] [2021-07-09 16:27:43,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:27:43,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:43,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:27:43,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:43,258 INFO L87 Difference]: Start difference. First operand 59103 states and 210609 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:43,843 INFO L93 Difference]: Finished difference Result 59103 states and 210104 transitions. [2021-07-09 16:27:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:27:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 16:27:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:43,976 INFO L225 Difference]: With dead ends: 59103 [2021-07-09 16:27:43,976 INFO L226 Difference]: Without dead ends: 42798 [2021-07-09 16:27:43,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42798 states. [2021-07-09 16:27:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42798 to 38148. [2021-07-09 16:27:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38148 states, 38146 states have (on average 3.492161694542023) internal successors, (133212), 38147 states have internal predecessors, (133212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38148 states to 38148 states and 133212 transitions. [2021-07-09 16:27:45,247 INFO L78 Accepts]: Start accepts. Automaton has 38148 states and 133212 transitions. Word has length 71 [2021-07-09 16:27:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:45,248 INFO L482 AbstractCegarLoop]: Abstraction has 38148 states and 133212 transitions. [2021-07-09 16:27:45,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 38148 states and 133212 transitions. [2021-07-09 16:27:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:27:45,288 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:45,288 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:45,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:27:45,288 INFO L430 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:45,288 INFO L82 PathProgramCache]: Analyzing trace with hash 735931245, now seen corresponding path program 1 times [2021-07-09 16:27:45,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:45,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158523815] [2021-07-09 16:27:45,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:45,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:45,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158523815] [2021-07-09 16:27:45,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158523815] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:45,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:45,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 16:27:45,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260055894] [2021-07-09 16:27:45,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:27:45,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:45,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:27:45,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:27:45,337 INFO L87 Difference]: Start difference. First operand 38148 states and 133212 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:45,648 INFO L93 Difference]: Finished difference Result 56525 states and 198218 transitions. [2021-07-09 16:27:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 16:27:45,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-07-09 16:27:45,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:45,698 INFO L225 Difference]: With dead ends: 56525 [2021-07-09 16:27:45,698 INFO L226 Difference]: Without dead ends: 20903 [2021-07-09 16:27:45,699 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:27:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20903 states. [2021-07-09 16:27:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20903 to 19239. [2021-07-09 16:27:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19239 states, 19237 states have (on average 3.2243593075843426) internal successors, (62027), 19238 states have internal predecessors, (62027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19239 states to 19239 states and 62027 transitions. [2021-07-09 16:27:46,292 INFO L78 Accepts]: Start accepts. Automaton has 19239 states and 62027 transitions. Word has length 74 [2021-07-09 16:27:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:46,292 INFO L482 AbstractCegarLoop]: Abstraction has 19239 states and 62027 transitions. [2021-07-09 16:27:46,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 19239 states and 62027 transitions. [2021-07-09 16:27:46,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 16:27:46,321 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:46,321 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:46,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:27:46,321 INFO L430 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:46,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:46,321 INFO L82 PathProgramCache]: Analyzing trace with hash 527621088, now seen corresponding path program 1 times [2021-07-09 16:27:46,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:46,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114769323] [2021-07-09 16:27:46,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:46,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:46,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114769323] [2021-07-09 16:27:46,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114769323] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:46,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:46,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 16:27:46,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130630350] [2021-07-09 16:27:46,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:27:46,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:46,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:27:46,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:46,352 INFO L87 Difference]: Start difference. First operand 19239 states and 62027 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:46,431 INFO L93 Difference]: Finished difference Result 18328 states and 59183 transitions. [2021-07-09 16:27:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:27:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-09 16:27:46,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:46,476 INFO L225 Difference]: With dead ends: 18328 [2021-07-09 16:27:46,476 INFO L226 Difference]: Without dead ends: 18328 [2021-07-09 16:27:46,477 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18328 states. [2021-07-09 16:27:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18328 to 18049. [2021-07-09 16:27:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18049 states, 18047 states have (on average 3.2459688590901536) internal successors, (58580), 18048 states have internal predecessors, (58580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18049 states to 18049 states and 58580 transitions. [2021-07-09 16:27:46,995 INFO L78 Accepts]: Start accepts. Automaton has 18049 states and 58580 transitions. Word has length 77 [2021-07-09 16:27:46,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:46,995 INFO L482 AbstractCegarLoop]: Abstraction has 18049 states and 58580 transitions. [2021-07-09 16:27:46,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 18049 states and 58580 transitions. [2021-07-09 16:27:47,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 16:27:47,021 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:47,021 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:47,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:27:47,021 INFO L430 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:47,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1833917536, now seen corresponding path program 1 times [2021-07-09 16:27:47,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:47,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339199096] [2021-07-09 16:27:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:47,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:47,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339199096] [2021-07-09 16:27:47,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339199096] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:47,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:47,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 16:27:47,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027636111] [2021-07-09 16:27:47,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:27:47,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:47,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:27:47,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:47,053 INFO L87 Difference]: Start difference. First operand 18049 states and 58580 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:47,128 INFO L93 Difference]: Finished difference Result 18158 states and 58368 transitions. [2021-07-09 16:27:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:27:47,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-09 16:27:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:47,174 INFO L225 Difference]: With dead ends: 18158 [2021-07-09 16:27:47,174 INFO L226 Difference]: Without dead ends: 18158 [2021-07-09 16:27:47,174 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:27:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18158 states. [2021-07-09 16:27:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18158 to 17879. [2021-07-09 16:27:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17879 states, 17877 states have (on average 3.2312468534989094) internal successors, (57765), 17878 states have internal predecessors, (57765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17879 states to 17879 states and 57765 transitions. [2021-07-09 16:27:47,648 INFO L78 Accepts]: Start accepts. Automaton has 17879 states and 57765 transitions. Word has length 77 [2021-07-09 16:27:47,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:47,648 INFO L482 AbstractCegarLoop]: Abstraction has 17879 states and 57765 transitions. [2021-07-09 16:27:47,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 17879 states and 57765 transitions. [2021-07-09 16:27:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 16:27:47,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:47,674 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:47,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:27:47,674 INFO L430 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:47,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1834930430, now seen corresponding path program 1 times [2021-07-09 16:27:47,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:47,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775874314] [2021-07-09 16:27:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:47,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:47,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775874314] [2021-07-09 16:27:47,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775874314] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:47,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:47,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:27:47,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029667131] [2021-07-09 16:27:47,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:27:47,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:47,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:27:47,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:27:47,711 INFO L87 Difference]: Start difference. First operand 17879 states and 57765 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:47,843 INFO L93 Difference]: Finished difference Result 18060 states and 57752 transitions. [2021-07-09 16:27:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:27:47,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-09 16:27:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:47,887 INFO L225 Difference]: With dead ends: 18060 [2021-07-09 16:27:47,887 INFO L226 Difference]: Without dead ends: 17820 [2021-07-09 16:27:47,887 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:27:48,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2021-07-09 16:27:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 16473. [2021-07-09 16:27:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16473 states, 16471 states have (on average 3.2634934126646833) internal successors, (53753), 16472 states have internal predecessors, (53753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16473 states to 16473 states and 53753 transitions. [2021-07-09 16:27:48,377 INFO L78 Accepts]: Start accepts. Automaton has 16473 states and 53753 transitions. Word has length 77 [2021-07-09 16:27:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:48,377 INFO L482 AbstractCegarLoop]: Abstraction has 16473 states and 53753 transitions. [2021-07-09 16:27:48,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 16473 states and 53753 transitions. [2021-07-09 16:27:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:48,406 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:48,406 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:48,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:27:48,407 INFO L430 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:48,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:48,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1643343059, now seen corresponding path program 1 times [2021-07-09 16:27:48,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:48,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880829259] [2021-07-09 16:27:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:48,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:48,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880829259] [2021-07-09 16:27:48,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880829259] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:48,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:48,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:27:48,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861600100] [2021-07-09 16:27:48,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:27:48,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:48,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:27:48,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:27:48,537 INFO L87 Difference]: Start difference. First operand 16473 states and 53753 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:48,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:48,897 INFO L93 Difference]: Finished difference Result 17507 states and 56416 transitions. [2021-07-09 16:27:48,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:27:48,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:48,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:48,938 INFO L225 Difference]: With dead ends: 17507 [2021-07-09 16:27:48,938 INFO L226 Difference]: Without dead ends: 17507 [2021-07-09 16:27:48,938 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 63.3ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:27:49,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17507 states. [2021-07-09 16:27:49,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17507 to 16516. [2021-07-09 16:27:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16516 states, 16514 states have (on average 3.2620201041540513) internal successors, (53869), 16515 states have internal predecessors, (53869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16516 states to 16516 states and 53869 transitions. [2021-07-09 16:27:49,291 INFO L78 Accepts]: Start accepts. Automaton has 16516 states and 53869 transitions. Word has length 80 [2021-07-09 16:27:49,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:49,292 INFO L482 AbstractCegarLoop]: Abstraction has 16516 states and 53869 transitions. [2021-07-09 16:27:49,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 16516 states and 53869 transitions. [2021-07-09 16:27:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:49,321 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:49,321 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:49,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:27:49,321 INFO L430 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:49,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash -574527521, now seen corresponding path program 2 times [2021-07-09 16:27:49,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:49,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527620025] [2021-07-09 16:27:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:49,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:49,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527620025] [2021-07-09 16:27:49,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527620025] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:49,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:49,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:49,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327345055] [2021-07-09 16:27:49,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:49,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:49,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:49,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:49,422 INFO L87 Difference]: Start difference. First operand 16516 states and 53869 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:49,830 INFO L93 Difference]: Finished difference Result 20249 states and 65024 transitions. [2021-07-09 16:27:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:27:49,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:49,888 INFO L225 Difference]: With dead ends: 20249 [2021-07-09 16:27:49,888 INFO L226 Difference]: Without dead ends: 20249 [2021-07-09 16:27:49,888 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 96.7ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:27:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20249 states. [2021-07-09 16:27:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20249 to 17068. [2021-07-09 16:27:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17068 states, 17066 states have (on average 3.270713699753897) internal successors, (55818), 17067 states have internal predecessors, (55818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17068 states to 17068 states and 55818 transitions. [2021-07-09 16:27:50,252 INFO L78 Accepts]: Start accepts. Automaton has 17068 states and 55818 transitions. Word has length 80 [2021-07-09 16:27:50,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:50,252 INFO L482 AbstractCegarLoop]: Abstraction has 17068 states and 55818 transitions. [2021-07-09 16:27:50,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 17068 states and 55818 transitions. [2021-07-09 16:27:50,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:50,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:50,379 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:50,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:27:50,379 INFO L430 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:50,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:50,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1100980875, now seen corresponding path program 3 times [2021-07-09 16:27:50,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:50,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402990030] [2021-07-09 16:27:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:50,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:50,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402990030] [2021-07-09 16:27:50,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402990030] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:50,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:50,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:50,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562079809] [2021-07-09 16:27:50,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:50,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:50,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:50,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:50,475 INFO L87 Difference]: Start difference. First operand 17068 states and 55818 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:50,787 INFO L93 Difference]: Finished difference Result 20167 states and 64836 transitions. [2021-07-09 16:27:50,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:27:50,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:50,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:50,834 INFO L225 Difference]: With dead ends: 20167 [2021-07-09 16:27:50,834 INFO L226 Difference]: Without dead ends: 20167 [2021-07-09 16:27:50,834 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 101.1ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:27:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20167 states. [2021-07-09 16:27:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20167 to 17575. [2021-07-09 16:27:51,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17575 states, 17573 states have (on average 3.253798440789848) internal successors, (57179), 17574 states have internal predecessors, (57179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17575 states to 17575 states and 57179 transitions. [2021-07-09 16:27:51,289 INFO L78 Accepts]: Start accepts. Automaton has 17575 states and 57179 transitions. Word has length 80 [2021-07-09 16:27:51,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:51,289 INFO L482 AbstractCegarLoop]: Abstraction has 17575 states and 57179 transitions. [2021-07-09 16:27:51,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:51,289 INFO L276 IsEmpty]: Start isEmpty. Operand 17575 states and 57179 transitions. [2021-07-09 16:27:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:51,318 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:51,318 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:51,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:27:51,319 INFO L430 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:51,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1964715603, now seen corresponding path program 1 times [2021-07-09 16:27:51,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:51,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354015343] [2021-07-09 16:27:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:51,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:51,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354015343] [2021-07-09 16:27:51,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354015343] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:51,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:51,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:27:51,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219085916] [2021-07-09 16:27:51,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:27:51,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:51,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:27:51,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:51,431 INFO L87 Difference]: Start difference. First operand 17575 states and 57179 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:51,709 INFO L93 Difference]: Finished difference Result 18109 states and 58406 transitions. [2021-07-09 16:27:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:27:51,713 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:51,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:51,758 INFO L225 Difference]: With dead ends: 18109 [2021-07-09 16:27:51,759 INFO L226 Difference]: Without dead ends: 18109 [2021-07-09 16:27:51,759 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 104.1ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-07-09 16:27:51,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18109 states. [2021-07-09 16:27:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18109 to 17618. [2021-07-09 16:27:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17618 states, 17616 states have (on average 3.2524409627611264) internal successors, (57295), 17617 states have internal predecessors, (57295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17618 states to 17618 states and 57295 transitions. [2021-07-09 16:27:52,243 INFO L78 Accepts]: Start accepts. Automaton has 17618 states and 57295 transitions. Word has length 80 [2021-07-09 16:27:52,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:52,243 INFO L482 AbstractCegarLoop]: Abstraction has 17618 states and 57295 transitions. [2021-07-09 16:27:52,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 17618 states and 57295 transitions. [2021-07-09 16:27:52,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:52,272 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:52,273 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:52,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:27:52,273 INFO L430 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:52,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:52,273 INFO L82 PathProgramCache]: Analyzing trace with hash -556986819, now seen corresponding path program 2 times [2021-07-09 16:27:52,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:52,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809388937] [2021-07-09 16:27:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:52,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:52,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809388937] [2021-07-09 16:27:52,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809388937] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:52,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:52,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:27:52,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484950347] [2021-07-09 16:27:52,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:27:52,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:52,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:27:52,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:52,371 INFO L87 Difference]: Start difference. First operand 17618 states and 57295 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:52,826 INFO L93 Difference]: Finished difference Result 19771 states and 63757 transitions. [2021-07-09 16:27:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:27:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:52,874 INFO L225 Difference]: With dead ends: 19771 [2021-07-09 16:27:52,874 INFO L226 Difference]: Without dead ends: 19771 [2021-07-09 16:27:52,875 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:27:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19771 states. [2021-07-09 16:27:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19771 to 17740. [2021-07-09 16:27:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17740 states, 17738 states have (on average 3.2573570864810013) internal successors, (57779), 17739 states have internal predecessors, (57779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17740 states to 17740 states and 57779 transitions. [2021-07-09 16:27:53,408 INFO L78 Accepts]: Start accepts. Automaton has 17740 states and 57779 transitions. Word has length 80 [2021-07-09 16:27:53,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:53,408 INFO L482 AbstractCegarLoop]: Abstraction has 17740 states and 57779 transitions. [2021-07-09 16:27:53,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17740 states and 57779 transitions. [2021-07-09 16:27:53,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:53,439 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:53,440 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:53,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:27:53,440 INFO L430 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:53,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:53,440 INFO L82 PathProgramCache]: Analyzing trace with hash 77032891, now seen corresponding path program 4 times [2021-07-09 16:27:53,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:53,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380134238] [2021-07-09 16:27:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:53,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:53,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380134238] [2021-07-09 16:27:53,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380134238] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:53,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:53,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:53,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125322139] [2021-07-09 16:27:53,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:53,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:53,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:53,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:53,540 INFO L87 Difference]: Start difference. First operand 17740 states and 57779 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:53,985 INFO L93 Difference]: Finished difference Result 22688 states and 72875 transitions. [2021-07-09 16:27:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:27:53,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:53,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:54,037 INFO L225 Difference]: With dead ends: 22688 [2021-07-09 16:27:54,037 INFO L226 Difference]: Without dead ends: 22688 [2021-07-09 16:27:54,038 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 92.9ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:27:54,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22688 states. [2021-07-09 16:27:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22688 to 17736. [2021-07-09 16:27:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17736 states, 17734 states have (on average 3.2572459681966843) internal successors, (57764), 17735 states have internal predecessors, (57764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17736 states to 17736 states and 57764 transitions. [2021-07-09 16:27:54,408 INFO L78 Accepts]: Start accepts. Automaton has 17736 states and 57764 transitions. Word has length 80 [2021-07-09 16:27:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:54,409 INFO L482 AbstractCegarLoop]: Abstraction has 17736 states and 57764 transitions. [2021-07-09 16:27:54,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 17736 states and 57764 transitions. [2021-07-09 16:27:54,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:54,563 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:54,563 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:54,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:27:54,563 INFO L430 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:54,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:54,564 INFO L82 PathProgramCache]: Analyzing trace with hash -449420463, now seen corresponding path program 5 times [2021-07-09 16:27:54,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:54,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699415569] [2021-07-09 16:27:54,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:54,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:54,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699415569] [2021-07-09 16:27:54,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699415569] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:54,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:54,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:54,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395823342] [2021-07-09 16:27:54,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:54,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:54,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:54,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:54,656 INFO L87 Difference]: Start difference. First operand 17736 states and 57764 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:54,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:54,990 INFO L93 Difference]: Finished difference Result 19984 states and 64446 transitions. [2021-07-09 16:27:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:27:54,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:54,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:55,038 INFO L225 Difference]: With dead ends: 19984 [2021-07-09 16:27:55,038 INFO L226 Difference]: Without dead ends: 19984 [2021-07-09 16:27:55,039 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 101.7ms TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:27:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19984 states. [2021-07-09 16:27:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19984 to 18025. [2021-07-09 16:27:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18025 states, 18023 states have (on average 3.245519613826777) internal successors, (58494), 18024 states have internal predecessors, (58494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18025 states to 18025 states and 58494 transitions. [2021-07-09 16:27:55,488 INFO L78 Accepts]: Start accepts. Automaton has 18025 states and 58494 transitions. Word has length 80 [2021-07-09 16:27:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:55,488 INFO L482 AbstractCegarLoop]: Abstraction has 18025 states and 58494 transitions. [2021-07-09 16:27:55,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 18025 states and 58494 transitions. [2021-07-09 16:27:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:55,518 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:55,518 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:55,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:27:55,518 INFO L430 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:55,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:55,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1082545819, now seen corresponding path program 3 times [2021-07-09 16:27:55,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:55,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568809924] [2021-07-09 16:27:55,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:55,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:55,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568809924] [2021-07-09 16:27:55,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568809924] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:55,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:55,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:27:55,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977334751] [2021-07-09 16:27:55,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:27:55,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:55,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:27:55,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:55,596 INFO L87 Difference]: Start difference. First operand 18025 states and 58494 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:55,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:55,945 INFO L93 Difference]: Finished difference Result 22045 states and 71149 transitions. [2021-07-09 16:27:55,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:27:55,945 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:55,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:55,995 INFO L225 Difference]: With dead ends: 22045 [2021-07-09 16:27:55,995 INFO L226 Difference]: Without dead ends: 22045 [2021-07-09 16:27:55,995 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 112.1ms TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:27:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22045 states. [2021-07-09 16:27:56,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22045 to 16824. [2021-07-09 16:27:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16824 states, 16822 states have (on average 3.2490785875639046) internal successors, (54656), 16823 states have internal predecessors, (54656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16824 states to 16824 states and 54656 transitions. [2021-07-09 16:27:56,460 INFO L78 Accepts]: Start accepts. Automaton has 16824 states and 54656 transitions. Word has length 80 [2021-07-09 16:27:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:56,460 INFO L482 AbstractCegarLoop]: Abstraction has 16824 states and 54656 transitions. [2021-07-09 16:27:56,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16824 states and 54656 transitions. [2021-07-09 16:27:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:56,487 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:56,487 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:56,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:27:56,487 INFO L430 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash -338879573, now seen corresponding path program 6 times [2021-07-09 16:27:56,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:56,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760502969] [2021-07-09 16:27:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:56,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:56,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760502969] [2021-07-09 16:27:56,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760502969] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:56,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:56,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:56,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304377895] [2021-07-09 16:27:56,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:56,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:56,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:56,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:56,559 INFO L87 Difference]: Start difference. First operand 16824 states and 54656 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:56,850 INFO L93 Difference]: Finished difference Result 18541 states and 59862 transitions. [2021-07-09 16:27:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:27:56,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:57,035 INFO L225 Difference]: With dead ends: 18541 [2021-07-09 16:27:57,035 INFO L226 Difference]: Without dead ends: 18265 [2021-07-09 16:27:57,035 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:27:57,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18265 states. [2021-07-09 16:27:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18265 to 16503. [2021-07-09 16:27:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16501 states have (on average 3.242773165262711) internal successors, (53509), 16502 states have internal predecessors, (53509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 53509 transitions. [2021-07-09 16:27:57,362 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 53509 transitions. Word has length 80 [2021-07-09 16:27:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:57,362 INFO L482 AbstractCegarLoop]: Abstraction has 16503 states and 53509 transitions. [2021-07-09 16:27:57,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 53509 transitions. [2021-07-09 16:27:57,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:27:57,391 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:57,391 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:57,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:27:57,391 INFO L430 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:57,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1579578581, now seen corresponding path program 4 times [2021-07-09 16:27:57,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:57,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489355948] [2021-07-09 16:27:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:57,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:57,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489355948] [2021-07-09 16:27:57,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489355948] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:57,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:57,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:27:57,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720551755] [2021-07-09 16:27:57,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:27:57,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:57,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:27:57,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:57,464 INFO L87 Difference]: Start difference. First operand 16503 states and 53509 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:57,925 INFO L93 Difference]: Finished difference Result 17880 states and 57935 transitions. [2021-07-09 16:27:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 16:27:57,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:27:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:57,964 INFO L225 Difference]: With dead ends: 17880 [2021-07-09 16:27:57,964 INFO L226 Difference]: Without dead ends: 17880 [2021-07-09 16:27:57,964 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 113.2ms TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:27:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17880 states. [2021-07-09 16:27:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17880 to 16062. [2021-07-09 16:27:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16062 states, 16060 states have (on average 3.2597135740971357) internal successors, (52351), 16061 states have internal predecessors, (52351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16062 states to 16062 states and 52351 transitions. [2021-07-09 16:27:58,273 INFO L78 Accepts]: Start accepts. Automaton has 16062 states and 52351 transitions. Word has length 80 [2021-07-09 16:27:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:58,273 INFO L482 AbstractCegarLoop]: Abstraction has 16062 states and 52351 transitions. [2021-07-09 16:27:58,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 16062 states and 52351 transitions. [2021-07-09 16:27:58,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-07-09 16:27:58,299 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:58,299 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:58,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:27:58,299 INFO L430 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:58,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:58,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1349824490, now seen corresponding path program 1 times [2021-07-09 16:27:58,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:58,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463524960] [2021-07-09 16:27:58,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:58,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:58,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:58,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463524960] [2021-07-09 16:27:58,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463524960] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:58,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:58,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:27:58,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287617981] [2021-07-09 16:27:58,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:27:58,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:58,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:27:58,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:27:58,490 INFO L87 Difference]: Start difference. First operand 16062 states and 52351 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:58,796 INFO L93 Difference]: Finished difference Result 18280 states and 58875 transitions. [2021-07-09 16:27:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:27:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-07-09 16:27:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:58,840 INFO L225 Difference]: With dead ends: 18280 [2021-07-09 16:27:58,840 INFO L226 Difference]: Without dead ends: 18004 [2021-07-09 16:27:58,842 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 114.0ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:27:58,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18004 states. [2021-07-09 16:27:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18004 to 16212. [2021-07-09 16:27:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16212 states, 16210 states have (on average 3.2336212214682294) internal successors, (52417), 16211 states have internal predecessors, (52417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16212 states to 16212 states and 52417 transitions. [2021-07-09 16:27:59,329 INFO L78 Accepts]: Start accepts. Automaton has 16212 states and 52417 transitions. Word has length 83 [2021-07-09 16:27:59,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:27:59,329 INFO L482 AbstractCegarLoop]: Abstraction has 16212 states and 52417 transitions. [2021-07-09 16:27:59,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:59,329 INFO L276 IsEmpty]: Start isEmpty. Operand 16212 states and 52417 transitions. [2021-07-09 16:27:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-07-09 16:27:59,355 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:27:59,355 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:27:59,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:27:59,355 INFO L430 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:27:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:27:59,356 INFO L82 PathProgramCache]: Analyzing trace with hash -2120740758, now seen corresponding path program 1 times [2021-07-09 16:27:59,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:27:59,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364068128] [2021-07-09 16:27:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:27:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:27:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:27:59,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:27:59,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364068128] [2021-07-09 16:27:59,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364068128] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:27:59,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:27:59,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:27:59,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453660207] [2021-07-09 16:27:59,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:27:59,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:27:59,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:27:59,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:27:59,430 INFO L87 Difference]: Start difference. First operand 16212 states and 52417 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:27:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:27:59,749 INFO L93 Difference]: Finished difference Result 17616 states and 56917 transitions. [2021-07-09 16:27:59,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 16:27:59,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-07-09 16:27:59,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:27:59,791 INFO L225 Difference]: With dead ends: 17616 [2021-07-09 16:27:59,791 INFO L226 Difference]: Without dead ends: 17616 [2021-07-09 16:27:59,791 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 106.6ms TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:27:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17616 states. [2021-07-09 16:28:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17616 to 16107. [2021-07-09 16:28:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16107 states, 16105 states have (on average 3.2376280658180687) internal successors, (52142), 16106 states have internal predecessors, (52142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16107 states to 16107 states and 52142 transitions. [2021-07-09 16:28:00,239 INFO L78 Accepts]: Start accepts. Automaton has 16107 states and 52142 transitions. Word has length 83 [2021-07-09 16:28:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:00,239 INFO L482 AbstractCegarLoop]: Abstraction has 16107 states and 52142 transitions. [2021-07-09 16:28:00,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 16107 states and 52142 transitions. [2021-07-09 16:28:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-07-09 16:28:00,267 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:00,267 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:00,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:28:00,268 INFO L430 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:00,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash 431227184, now seen corresponding path program 2 times [2021-07-09 16:28:00,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:00,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467382891] [2021-07-09 16:28:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:00,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:00,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467382891] [2021-07-09 16:28:00,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467382891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:00,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:00,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:28:00,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831406316] [2021-07-09 16:28:00,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:28:00,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:00,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:28:00,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:28:00,362 INFO L87 Difference]: Start difference. First operand 16107 states and 52142 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:00,659 INFO L93 Difference]: Finished difference Result 17749 states and 57301 transitions. [2021-07-09 16:28:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:28:00,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-07-09 16:28:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:00,720 INFO L225 Difference]: With dead ends: 17749 [2021-07-09 16:28:00,720 INFO L226 Difference]: Without dead ends: 17749 [2021-07-09 16:28:00,721 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 96.3ms TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:28:00,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17749 states. [2021-07-09 16:28:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17749 to 16062. [2021-07-09 16:28:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16062 states, 16060 states have (on average 3.240161892901619) internal successors, (52037), 16061 states have internal predecessors, (52037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16062 states to 16062 states and 52037 transitions. [2021-07-09 16:28:01,203 INFO L78 Accepts]: Start accepts. Automaton has 16062 states and 52037 transitions. Word has length 83 [2021-07-09 16:28:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:01,203 INFO L482 AbstractCegarLoop]: Abstraction has 16062 states and 52037 transitions. [2021-07-09 16:28:01,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 16062 states and 52037 transitions. [2021-07-09 16:28:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-07-09 16:28:01,230 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:01,230 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:01,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:28:01,230 INFO L430 AbstractCegarLoop]: === Iteration 25 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:01,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:01,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1255629232, now seen corresponding path program 2 times [2021-07-09 16:28:01,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:01,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264640901] [2021-07-09 16:28:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:01,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:01,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264640901] [2021-07-09 16:28:01,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264640901] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:01,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:01,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:28:01,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258455487] [2021-07-09 16:28:01,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:28:01,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:01,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:28:01,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:28:01,307 INFO L87 Difference]: Start difference. First operand 16062 states and 52037 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:01,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:01,666 INFO L93 Difference]: Finished difference Result 17289 states and 56133 transitions. [2021-07-09 16:28:01,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:28:01,667 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-07-09 16:28:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:01,709 INFO L225 Difference]: With dead ends: 17289 [2021-07-09 16:28:01,709 INFO L226 Difference]: Without dead ends: 17289 [2021-07-09 16:28:01,710 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 143.1ms TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:28:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17289 states. [2021-07-09 16:28:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17289 to 15621. [2021-07-09 16:28:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15621 states, 15619 states have (on average 3.257506882642935) internal successors, (50879), 15620 states have internal predecessors, (50879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15621 states to 15621 states and 50879 transitions. [2021-07-09 16:28:02,119 INFO L78 Accepts]: Start accepts. Automaton has 15621 states and 50879 transitions. Word has length 83 [2021-07-09 16:28:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:02,120 INFO L482 AbstractCegarLoop]: Abstraction has 15621 states and 50879 transitions. [2021-07-09 16:28:02,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 15621 states and 50879 transitions. [2021-07-09 16:28:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-07-09 16:28:02,146 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:02,146 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:02,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:28:02,146 INFO L430 AbstractCegarLoop]: === Iteration 26 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:02,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:02,147 INFO L82 PathProgramCache]: Analyzing trace with hash -885242066, now seen corresponding path program 1 times [2021-07-09 16:28:02,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:02,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60457079] [2021-07-09 16:28:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:02,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:02,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60457079] [2021-07-09 16:28:02,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60457079] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:02,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:02,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 16:28:02,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168182204] [2021-07-09 16:28:02,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 16:28:02,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:02,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 16:28:02,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 16:28:02,175 INFO L87 Difference]: Start difference. First operand 15621 states and 50879 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:02,270 INFO L93 Difference]: Finished difference Result 16128 states and 52183 transitions. [2021-07-09 16:28:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 16:28:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-07-09 16:28:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:02,308 INFO L225 Difference]: With dead ends: 16128 [2021-07-09 16:28:02,309 INFO L226 Difference]: Without dead ends: 16088 [2021-07-09 16:28:02,309 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:28:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16088 states. [2021-07-09 16:28:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16088 to 15661. [2021-07-09 16:28:02,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15661 states, 15659 states have (on average 3.256210485982502) internal successors, (50989), 15660 states have internal predecessors, (50989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15661 states to 15661 states and 50989 transitions. [2021-07-09 16:28:02,724 INFO L78 Accepts]: Start accepts. Automaton has 15661 states and 50989 transitions. Word has length 88 [2021-07-09 16:28:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:02,724 INFO L482 AbstractCegarLoop]: Abstraction has 15661 states and 50989 transitions. [2021-07-09 16:28:02,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15661 states and 50989 transitions. [2021-07-09 16:28:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-07-09 16:28:02,749 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:02,749 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:02,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:28:02,749 INFO L430 AbstractCegarLoop]: === Iteration 27 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1998663756, now seen corresponding path program 2 times [2021-07-09 16:28:02,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:02,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129925556] [2021-07-09 16:28:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:02,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:02,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129925556] [2021-07-09 16:28:02,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129925556] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:02,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:02,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:02,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811820342] [2021-07-09 16:28:02,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:02,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:02,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:02,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:02,800 INFO L87 Difference]: Start difference. First operand 15661 states and 50989 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:02,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:02,991 INFO L93 Difference]: Finished difference Result 16216 states and 52472 transitions. [2021-07-09 16:28:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:28:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-07-09 16:28:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:03,029 INFO L225 Difference]: With dead ends: 16216 [2021-07-09 16:28:03,029 INFO L226 Difference]: Without dead ends: 15915 [2021-07-09 16:28:03,029 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:28:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15915 states. [2021-07-09 16:28:03,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15915 to 15801. [2021-07-09 16:28:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15801 states, 15799 states have (on average 3.251724792708399) internal successors, (51374), 15800 states have internal predecessors, (51374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15801 states to 15801 states and 51374 transitions. [2021-07-09 16:28:03,514 INFO L78 Accepts]: Start accepts. Automaton has 15801 states and 51374 transitions. Word has length 88 [2021-07-09 16:28:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:03,514 INFO L482 AbstractCegarLoop]: Abstraction has 15801 states and 51374 transitions. [2021-07-09 16:28:03,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 15801 states and 51374 transitions. [2021-07-09 16:28:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-07-09 16:28:03,546 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:03,546 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:03,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:28:03,547 INFO L430 AbstractCegarLoop]: === Iteration 28 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:03,547 INFO L82 PathProgramCache]: Analyzing trace with hash 387028912, now seen corresponding path program 3 times [2021-07-09 16:28:03,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:03,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160007228] [2021-07-09 16:28:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:03,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:03,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160007228] [2021-07-09 16:28:03,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160007228] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:03,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:03,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:03,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126395877] [2021-07-09 16:28:03,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:03,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:03,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:03,606 INFO L87 Difference]: Start difference. First operand 15801 states and 51374 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:03,804 INFO L93 Difference]: Finished difference Result 16416 states and 53022 transitions. [2021-07-09 16:28:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:28:03,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-07-09 16:28:03,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:03,847 INFO L225 Difference]: With dead ends: 16416 [2021-07-09 16:28:03,847 INFO L226 Difference]: Without dead ends: 16087 [2021-07-09 16:28:03,847 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 56.5ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:28:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16087 states. [2021-07-09 16:28:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16087 to 15821. [2021-07-09 16:28:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15821 states, 15819 states have (on average 3.2510904608382325) internal successors, (51429), 15820 states have internal predecessors, (51429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15821 states to 15821 states and 51429 transitions. [2021-07-09 16:28:04,272 INFO L78 Accepts]: Start accepts. Automaton has 15821 states and 51429 transitions. Word has length 88 [2021-07-09 16:28:04,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:04,273 INFO L482 AbstractCegarLoop]: Abstraction has 15821 states and 51429 transitions. [2021-07-09 16:28:04,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15821 states and 51429 transitions. [2021-07-09 16:28:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-07-09 16:28:04,298 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:04,298 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:04,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:28:04,298 INFO L430 AbstractCegarLoop]: === Iteration 29 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:04,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:04,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1215546378, now seen corresponding path program 4 times [2021-07-09 16:28:04,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:04,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93751255] [2021-07-09 16:28:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:04,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:04,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93751255] [2021-07-09 16:28:04,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93751255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:04,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:04,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:04,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445383774] [2021-07-09 16:28:04,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:04,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:04,349 INFO L87 Difference]: Start difference. First operand 15821 states and 51429 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:04,583 INFO L93 Difference]: Finished difference Result 17695 states and 57349 transitions. [2021-07-09 16:28:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:28:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-07-09 16:28:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:04,619 INFO L225 Difference]: With dead ends: 17695 [2021-07-09 16:28:04,619 INFO L226 Difference]: Without dead ends: 13977 [2021-07-09 16:28:04,619 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 53.3ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:28:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13977 states. [2021-07-09 16:28:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13977 to 12090. [2021-07-09 16:28:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12090 states, 12088 states have (on average 3.2413964262078094) internal successors, (39182), 12089 states have internal predecessors, (39182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12090 states to 12090 states and 39182 transitions. [2021-07-09 16:28:05,044 INFO L78 Accepts]: Start accepts. Automaton has 12090 states and 39182 transitions. Word has length 88 [2021-07-09 16:28:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:05,044 INFO L482 AbstractCegarLoop]: Abstraction has 12090 states and 39182 transitions. [2021-07-09 16:28:05,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12090 states and 39182 transitions. [2021-07-09 16:28:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:05,062 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:05,062 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:05,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:28:05,063 INFO L430 AbstractCegarLoop]: === Iteration 30 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:05,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:05,063 INFO L82 PathProgramCache]: Analyzing trace with hash 538809417, now seen corresponding path program 1 times [2021-07-09 16:28:05,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:05,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983739601] [2021-07-09 16:28:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:05,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:05,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983739601] [2021-07-09 16:28:05,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983739601] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:05,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:05,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:05,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586064273] [2021-07-09 16:28:05,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:05,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:05,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:05,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:05,115 INFO L87 Difference]: Start difference. First operand 12090 states and 39182 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:05,268 INFO L93 Difference]: Finished difference Result 13167 states and 42694 transitions. [2021-07-09 16:28:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:28:05,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:05,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:05,296 INFO L225 Difference]: With dead ends: 13167 [2021-07-09 16:28:05,296 INFO L226 Difference]: Without dead ends: 11307 [2021-07-09 16:28:05,297 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:28:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-07-09 16:28:05,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 10335. [2021-07-09 16:28:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 10333 states have (on average 3.2374915319849027) internal successors, (33453), 10334 states have internal predecessors, (33453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 33453 transitions. [2021-07-09 16:28:05,519 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 33453 transitions. Word has length 91 [2021-07-09 16:28:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:05,519 INFO L482 AbstractCegarLoop]: Abstraction has 10335 states and 33453 transitions. [2021-07-09 16:28:05,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 33453 transitions. [2021-07-09 16:28:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:05,535 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:05,535 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:05,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:28:05,535 INFO L430 AbstractCegarLoop]: === Iteration 31 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:05,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash -899785151, now seen corresponding path program 2 times [2021-07-09 16:28:05,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:05,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628195787] [2021-07-09 16:28:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:05,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:05,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628195787] [2021-07-09 16:28:05,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628195787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:05,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:05,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:05,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095650919] [2021-07-09 16:28:05,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:05,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:05,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:05,585 INFO L87 Difference]: Start difference. First operand 10335 states and 33453 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:05,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:05,744 INFO L93 Difference]: Finished difference Result 12224 states and 39266 transitions. [2021-07-09 16:28:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:28:05,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:05,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:05,870 INFO L225 Difference]: With dead ends: 12224 [2021-07-09 16:28:05,870 INFO L226 Difference]: Without dead ends: 9745 [2021-07-09 16:28:05,871 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 60.8ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:28:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2021-07-09 16:28:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 9345. [2021-07-09 16:28:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9345 states, 9343 states have (on average 3.2163116771914804) internal successors, (30050), 9344 states have internal predecessors, (30050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9345 states to 9345 states and 30050 transitions. [2021-07-09 16:28:06,013 INFO L78 Accepts]: Start accepts. Automaton has 9345 states and 30050 transitions. Word has length 91 [2021-07-09 16:28:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:06,013 INFO L482 AbstractCegarLoop]: Abstraction has 9345 states and 30050 transitions. [2021-07-09 16:28:06,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9345 states and 30050 transitions. [2021-07-09 16:28:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:06,028 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:06,028 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:06,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:28:06,028 INFO L430 AbstractCegarLoop]: === Iteration 32 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:06,028 INFO L82 PathProgramCache]: Analyzing trace with hash -998964956, now seen corresponding path program 1 times [2021-07-09 16:28:06,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:06,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2531957] [2021-07-09 16:28:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:06,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:06,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:06,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2531957] [2021-07-09 16:28:06,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2531957] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:06,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:06,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:06,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868737056] [2021-07-09 16:28:06,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:06,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:06,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:06,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:06,083 INFO L87 Difference]: Start difference. First operand 9345 states and 30050 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:06,192 INFO L93 Difference]: Finished difference Result 9273 states and 29916 transitions. [2021-07-09 16:28:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:28:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:06,208 INFO L225 Difference]: With dead ends: 9273 [2021-07-09 16:28:06,208 INFO L226 Difference]: Without dead ends: 6834 [2021-07-09 16:28:06,208 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:28:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6834 states. [2021-07-09 16:28:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6834 to 6834. [2021-07-09 16:28:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 6833 states have (on average 3.2654763647007172) internal successors, (22313), 6833 states have internal predecessors, (22313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 22313 transitions. [2021-07-09 16:28:06,321 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 22313 transitions. Word has length 91 [2021-07-09 16:28:06,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:06,321 INFO L482 AbstractCegarLoop]: Abstraction has 6834 states and 22313 transitions. [2021-07-09 16:28:06,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 22313 transitions. [2021-07-09 16:28:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:06,331 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:06,331 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:06,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:28:06,332 INFO L430 AbstractCegarLoop]: === Iteration 33 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:06,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:06,332 INFO L82 PathProgramCache]: Analyzing trace with hash -876030795, now seen corresponding path program 3 times [2021-07-09 16:28:06,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:06,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046966034] [2021-07-09 16:28:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:06,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:06,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046966034] [2021-07-09 16:28:06,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046966034] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:06,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:06,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:06,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863096617] [2021-07-09 16:28:06,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:06,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:06,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:06,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:06,381 INFO L87 Difference]: Start difference. First operand 6834 states and 22313 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:06,496 INFO L93 Difference]: Finished difference Result 7523 states and 24177 transitions. [2021-07-09 16:28:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:28:06,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:06,509 INFO L225 Difference]: With dead ends: 7523 [2021-07-09 16:28:06,510 INFO L226 Difference]: Without dead ends: 7222 [2021-07-09 16:28:06,510 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:28:06,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7222 states. [2021-07-09 16:28:06,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7222 to 6810. [2021-07-09 16:28:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 6809 states have (on average 3.267293288294904) internal successors, (22247), 6809 states have internal predecessors, (22247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 22247 transitions. [2021-07-09 16:28:06,690 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 22247 transitions. Word has length 91 [2021-07-09 16:28:06,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:06,690 INFO L482 AbstractCegarLoop]: Abstraction has 6810 states and 22247 transitions. [2021-07-09 16:28:06,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 22247 transitions. [2021-07-09 16:28:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:06,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:06,702 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:06,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:28:06,702 INFO L430 AbstractCegarLoop]: === Iteration 34 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:06,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:06,703 INFO L82 PathProgramCache]: Analyzing trace with hash 513136423, now seen corresponding path program 4 times [2021-07-09 16:28:06,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:06,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639693615] [2021-07-09 16:28:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:06,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:06,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639693615] [2021-07-09 16:28:06,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639693615] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:06,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:06,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 16:28:06,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333610827] [2021-07-09 16:28:06,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 16:28:06,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:06,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 16:28:06,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 16:28:06,728 INFO L87 Difference]: Start difference. First operand 6810 states and 22247 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:06,789 INFO L93 Difference]: Finished difference Result 7362 states and 23656 transitions. [2021-07-09 16:28:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 16:28:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:06,806 INFO L225 Difference]: With dead ends: 7362 [2021-07-09 16:28:06,807 INFO L226 Difference]: Without dead ends: 7322 [2021-07-09 16:28:06,807 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:28:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2021-07-09 16:28:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 6850. [2021-07-09 16:28:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6850 states, 6849 states have (on average 3.2642721565192) internal successors, (22357), 6849 states have internal predecessors, (22357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6850 states to 6850 states and 22357 transitions. [2021-07-09 16:28:06,923 INFO L78 Accepts]: Start accepts. Automaton has 6850 states and 22357 transitions. Word has length 91 [2021-07-09 16:28:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:06,923 INFO L482 AbstractCegarLoop]: Abstraction has 6850 states and 22357 transitions. [2021-07-09 16:28:06,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:06,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6850 states and 22357 transitions. [2021-07-09 16:28:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-07-09 16:28:06,933 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:06,933 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:06,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:28:06,934 INFO L430 AbstractCegarLoop]: === Iteration 35 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:06,934 INFO L82 PathProgramCache]: Analyzing trace with hash 733479027, now seen corresponding path program 5 times [2021-07-09 16:28:06,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:06,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064839123] [2021-07-09 16:28:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:07,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:07,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064839123] [2021-07-09 16:28:07,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064839123] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:07,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:07,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:07,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898673511] [2021-07-09 16:28:07,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:07,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:07,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:07,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:07,003 INFO L87 Difference]: Start difference. First operand 6850 states and 22357 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:07,121 INFO L93 Difference]: Finished difference Result 7349 states and 23675 transitions. [2021-07-09 16:28:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:28:07,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-07-09 16:28:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:07,136 INFO L225 Difference]: With dead ends: 7349 [2021-07-09 16:28:07,136 INFO L226 Difference]: Without dead ends: 7020 [2021-07-09 16:28:07,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 63.1ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:28:07,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7020 states. [2021-07-09 16:28:07,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7020 to 5620. [2021-07-09 16:28:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 5619 states have (on average 3.2642819006940735) internal successors, (18342), 5619 states have internal predecessors, (18342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 18342 transitions. [2021-07-09 16:28:07,232 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 18342 transitions. Word has length 91 [2021-07-09 16:28:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:07,232 INFO L482 AbstractCegarLoop]: Abstraction has 5620 states and 18342 transitions. [2021-07-09 16:28:07,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 18342 transitions. [2021-07-09 16:28:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-07-09 16:28:07,239 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:28:07,239 INFO L508 BasicCegarLoop]: 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] [2021-07-09 16:28:07,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:28:07,239 INFO L430 AbstractCegarLoop]: === Iteration 36 === [qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:28:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:28:07,240 INFO L82 PathProgramCache]: Analyzing trace with hash -719902876, now seen corresponding path program 1 times [2021-07-09 16:28:07,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:28:07,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097102020] [2021-07-09 16:28:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:28:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:28:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:28:07,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:28:07,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097102020] [2021-07-09 16:28:07,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097102020] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:28:07,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:28:07,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:28:07,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627587076] [2021-07-09 16:28:07,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:28:07,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:28:07,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:28:07,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:28:07,285 INFO L87 Difference]: Start difference. First operand 5620 states and 18342 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:28:07,387 INFO L93 Difference]: Finished difference Result 5503 states and 18103 transitions. [2021-07-09 16:28:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:28:07,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-07-09 16:28:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:28:07,387 INFO L225 Difference]: With dead ends: 5503 [2021-07-09 16:28:07,387 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:28:07,387 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.3ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:28:07,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:28:07,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:28:07,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:28:07,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2021-07-09 16:28:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:28:07,388 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:28:07,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:28:07,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:28:07,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:28:07,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:28:07,389 INFO L301 ceAbstractionStarter]: Result for error location qrcu_updaterThread1of1ForFork0 was SAFE (2/2) [2021-07-09 16:28:07,389 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:28:07,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:28:07 BasicIcfg [2021-07-09 16:28:07,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:28:07,393 INFO L168 Benchmark]: Toolchain (without parser) took 74659.76 ms. Allocated memory was 220.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 183.5 MB in the beginning and 6.8 GB in the end (delta: -6.7 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,393 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory is still 201.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:28:07,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.82 ms. Allocated memory is still 220.2 MB. Free memory was 183.3 MB in the beginning and 192.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.23 ms. Allocated memory is still 220.2 MB. Free memory was 192.2 MB in the beginning and 189.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,393 INFO L168 Benchmark]: Boogie Preprocessor took 22.24 ms. Allocated memory is still 220.2 MB. Free memory was 189.6 MB in the beginning and 187.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,393 INFO L168 Benchmark]: RCFGBuilder took 824.28 ms. Allocated memory is still 220.2 MB. Free memory was 187.5 MB in the beginning and 86.3 MB in the end (delta: 101.2 MB). Peak memory consumption was 101.7 MB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,394 INFO L168 Benchmark]: TraceAbstraction took 73287.73 ms. Allocated memory was 220.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 85.8 MB in the beginning and 6.8 GB in the end (delta: -6.8 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-07-09 16:28:07,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory is still 201.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 463.82 ms. Allocated memory is still 220.2 MB. Free memory was 183.3 MB in the beginning and 192.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.23 ms. Allocated memory is still 220.2 MB. Free memory was 192.2 MB in the beginning and 189.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.24 ms. Allocated memory is still 220.2 MB. Free memory was 189.6 MB in the beginning and 187.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 824.28 ms. Allocated memory is still 220.2 MB. Free memory was 187.5 MB in the beginning and 86.3 MB in the end (delta: 101.2 MB). Peak memory consumption was 101.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73287.73 ms. Allocated memory was 220.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 85.8 MB in the beginning and 6.8 GB in the end (delta: -6.8 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 719]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 712]: 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: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 264 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 107.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 27.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 77.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2548occurred 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. VerificationResult: SAFE, OverallTime: 73023.2ms, OverallIterations: 36, TraceHistogramMax: 1, EmptinessCheckTime: 1993.4ms, AutomataDifference: 21952.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2307.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8967 SDtfs, 14879 SDslu, 29197 SDs, 0 SdLazy, 6353 SolverSat, 668 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2792.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 456 GetRequests, 80 SyntacticMatches, 9 SemanticMatches, 367 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2151.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=112214occurred in iteration=4, InterpolantAutomatonStates: 352, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 43945.7ms AutomataMinimizationTime, 36 MinimizatonAttempts, 71084 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 82.8ms SsaConstructionTime, 338.8ms SatisfiabilityAnalysisTime, 2132.0ms InterpolantComputationTime, 2885 NumberOfCodeBlocks, 2885 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2849 ConstructedInterpolants, 0 QuantifiedInterpolants, 15317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 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...