./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/qrcu-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/qrcu-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92de787da58164b8efa82fae19f262746d58018b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 14:15:10,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 14:15:11,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 14:15:11,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 14:15:11,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 14:15:11,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 14:15:11,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 14:15:11,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 14:15:11,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 14:15:11,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 14:15:11,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 14:15:11,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 14:15:11,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 14:15:11,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 14:15:11,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 14:15:11,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 14:15:11,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 14:15:11,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 14:15:11,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 14:15:11,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 14:15:11,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 14:15:11,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 14:15:11,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 14:15:11,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 14:15:11,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 14:15:11,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 14:15:11,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 14:15:11,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 14:15:11,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 14:15:11,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 14:15:11,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 14:15:11,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 14:15:11,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 14:15:11,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 14:15:11,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 14:15:11,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 14:15:11,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 14:15:11,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 14:15:11,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 14:15:11,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 14:15:11,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 14:15:11,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 14:15:11,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 14:15:11,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 14:15:11,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 14:15:11,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 14:15:11,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 14:15:11,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 14:15:11,127 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 14:15:11,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 14:15:11,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 14:15:11,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 14:15:11,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 14:15:11,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 14:15:11,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 14:15:11,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 14:15:11,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 14:15:11,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 14:15:11,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:15:11,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 14:15:11,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 14:15:11,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 14:15:11,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 14:15:11,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 14:15:11,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 14:15:11,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 14:15:11,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92de787da58164b8efa82fae19f262746d58018b [2021-08-26 14:15:11,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 14:15:11,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 14:15:11,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 14:15:11,459 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 14:15:11,460 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 14:15:11,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2021-08-26 14:15:11,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e7239a0/7a82e6a7d1d649049e98560d7defa4a4/FLAG6f94ff9df [2021-08-26 14:15:11,985 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 14:15:11,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2021-08-26 14:15:11,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e7239a0/7a82e6a7d1d649049e98560d7defa4a4/FLAG6f94ff9df [2021-08-26 14:15:12,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e7239a0/7a82e6a7d1d649049e98560d7defa4a4 [2021-08-26 14:15:12,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 14:15:12,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 14:15:12,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 14:15:12,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 14:15:12,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 14:15:12,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616e649e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12, skipping insertion in model container [2021-08-26 14:15:12,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 14:15:12,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 14:15:12,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2021-08-26 14:15:12,737 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2021-08-26 14:15:12,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:15:12,786 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 14:15:12,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30694,30707] [2021-08-26 14:15:12,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i[30916,30929] [2021-08-26 14:15:12,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:15:12,855 INFO L208 MainTranslator]: Completed translation [2021-08-26 14:15:12,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12 WrapperNode [2021-08-26 14:15:12,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 14:15:12,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 14:15:12,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 14:15:12,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 14:15:12,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 14:15:12,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 14:15:12,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 14:15:12,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 14:15:12,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 14:15:12,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 14:15:12,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 14:15:12,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 14:15:12,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (1/1) ... [2021-08-26 14:15:12,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:15:12,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 14:15:12,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 14:15:12,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 14:15:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2021-08-26 14:15:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2021-08-26 14:15:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2021-08-26 14:15:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2021-08-26 14:15:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 14:15:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 14:15:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2021-08-26 14:15:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2021-08-26 14:15:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-26 14:15:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 14:15:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 14:15:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 14:15:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 14:15:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 14:15:13,019 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-26 14:15:14,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 14:15:14,272 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-26 14:15:14,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:15:14 BoogieIcfgContainer [2021-08-26 14:15:14,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 14:15:14,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 14:15:14,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 14:15:14,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 14:15:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:15:12" (1/3) ... [2021-08-26 14:15:14,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be1dc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:15:14, skipping insertion in model container [2021-08-26 14:15:14,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:15:12" (2/3) ... [2021-08-26 14:15:14,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be1dc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:15:14, skipping insertion in model container [2021-08-26 14:15:14,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:15:14" (3/3) ... [2021-08-26 14:15:14,279 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2021-08-26 14:15:14,283 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-26 14:15:14,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 14:15:14,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 14:15:14,284 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-26 14:15:14,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,327 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,327 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,328 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,329 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,329 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,329 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,330 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,331 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,332 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,333 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,334 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,335 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,336 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,337 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,338 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,338 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,339 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,340 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,340 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,341 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,341 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,342 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,342 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,342 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,342 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,342 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,346 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,347 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,348 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,349 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,350 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,353 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,354 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,355 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,355 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,357 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,357 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,360 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,379 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,381 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,382 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,406 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,408 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,408 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,409 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:15:14,418 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-26 14:15:14,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 14:15:14,462 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 14:15:14,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-26 14:15:14,472 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-26 14:15:14,479 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 178 transitions, 380 flow [2021-08-26 14:15:14,480 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 178 transitions, 380 flow [2021-08-26 14:15:14,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 178 transitions, 380 flow [2021-08-26 14:15:14,528 INFO L129 PetriNetUnfolder]: 18/175 cut-off events. [2021-08-26 14:15:14,528 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-26 14:15:14,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 175 events. 18/175 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 355 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2021-08-26 14:15:14,540 INFO L116 LiptonReduction]: Number of co-enabled transitions 9890 [2021-08-26 14:15:20,493 INFO L131 LiptonReduction]: Checked pairs total: 19920 [2021-08-26 14:15:20,493 INFO L133 LiptonReduction]: Total number of compositions: 139 [2021-08-26 14:15:20,511 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 66 transitions, 156 flow [2021-08-26 14:15:20,608 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3358 states, 3356 states have (on average 4.172824791418355) internal successors, (14004), 3357 states have internal predecessors, (14004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 3358 states, 3356 states have (on average 4.172824791418355) internal successors, (14004), 3357 states have internal predecessors, (14004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 14:15:20,639 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:20,639 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:20,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:20,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1727739574, now seen corresponding path program 1 times [2021-08-26 14:15:20,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:20,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440827436] [2021-08-26 14:15:20,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:20,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:20,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:20,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440827436] [2021-08-26 14:15:20,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440827436] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:20,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:20,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 14:15:20,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358205906] [2021-08-26 14:15:20,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:20,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:20,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:20,882 INFO L87 Difference]: Start difference. First operand has 3358 states, 3356 states have (on average 4.172824791418355) internal successors, (14004), 3357 states have internal predecessors, (14004), 0 states have call successors, (0), 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 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:20,978 INFO L93 Difference]: Finished difference Result 3942 states and 15358 transitions. [2021-08-26 14:15:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:20,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-08-26 14:15:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:21,023 INFO L225 Difference]: With dead ends: 3942 [2021-08-26 14:15:21,023 INFO L226 Difference]: Without dead ends: 3942 [2021-08-26 14:15:21,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2021-08-26 14:15:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3504. [2021-08-26 14:15:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 3502 states have (on average 3.9697315819531696) internal successors, (13902), 3503 states have internal predecessors, (13902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 13902 transitions. [2021-08-26 14:15:21,226 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 13902 transitions. Word has length 12 [2021-08-26 14:15:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:21,227 INFO L470 AbstractCegarLoop]: Abstraction has 3504 states and 13902 transitions. [2021-08-26 14:15:21,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 13902 transitions. [2021-08-26 14:15:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 14:15:21,230 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:21,230 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:21,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 14:15:21,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:21,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2025812155, now seen corresponding path program 1 times [2021-08-26 14:15:21,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:21,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117522318] [2021-08-26 14:15:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:21,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:21,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:21,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117522318] [2021-08-26 14:15:21,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117522318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:21,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:21,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-26 14:15:21,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583453382] [2021-08-26 14:15:21,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:21,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:21,327 INFO L87 Difference]: Start difference. First operand 3504 states and 13902 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:21,372 INFO L93 Difference]: Finished difference Result 3414 states and 13546 transitions. [2021-08-26 14:15:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:21,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-08-26 14:15:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:21,393 INFO L225 Difference]: With dead ends: 3414 [2021-08-26 14:15:21,393 INFO L226 Difference]: Without dead ends: 3414 [2021-08-26 14:15:21,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2021-08-26 14:15:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3414. [2021-08-26 14:15:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3414 states, 3412 states have (on average 3.97010550996483) internal successors, (13546), 3413 states have internal predecessors, (13546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 13546 transitions. [2021-08-26 14:15:21,492 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 13546 transitions. Word has length 13 [2021-08-26 14:15:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:21,493 INFO L470 AbstractCegarLoop]: Abstraction has 3414 states and 13546 transitions. [2021-08-26 14:15:21,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 13546 transitions. [2021-08-26 14:15:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 14:15:21,495 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:21,495 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:21,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 14:15:21,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:21,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2025811999, now seen corresponding path program 1 times [2021-08-26 14:15:21,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:21,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182572030] [2021-08-26 14:15:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:21,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:21,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:21,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182572030] [2021-08-26 14:15:21,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182572030] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:21,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:21,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-26 14:15:21,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008874299] [2021-08-26 14:15:21,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:21,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:21,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:21,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:21,564 INFO L87 Difference]: Start difference. First operand 3414 states and 13546 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:21,635 INFO L93 Difference]: Finished difference Result 3334 states and 13224 transitions. [2021-08-26 14:15:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:21,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-08-26 14:15:21,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:21,654 INFO L225 Difference]: With dead ends: 3334 [2021-08-26 14:15:21,655 INFO L226 Difference]: Without dead ends: 3334 [2021-08-26 14:15:21,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-08-26 14:15:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-08-26 14:15:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 3.9687875150060026) internal successors, (13224), 3333 states have internal predecessors, (13224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 13224 transitions. [2021-08-26 14:15:21,761 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 13224 transitions. Word has length 13 [2021-08-26 14:15:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:21,761 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 13224 transitions. [2021-08-26 14:15:21,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 13224 transitions. [2021-08-26 14:15:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 14:15:21,767 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:21,767 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:21,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 14:15:21,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1157437171, now seen corresponding path program 1 times [2021-08-26 14:15:21,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:21,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097284939] [2021-08-26 14:15:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:21,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:21,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:21,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097284939] [2021-08-26 14:15:21,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097284939] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:21,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:21,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 14:15:21,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764799735] [2021-08-26 14:15:21,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 14:15:21,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 14:15:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 14:15:21,908 INFO L87 Difference]: Start difference. First operand 3334 states and 13224 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:22,120 INFO L93 Difference]: Finished difference Result 3962 states and 15196 transitions. [2021-08-26 14:15:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:15:22,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-08-26 14:15:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:22,151 INFO L225 Difference]: With dead ends: 3962 [2021-08-26 14:15:22,151 INFO L226 Difference]: Without dead ends: 3960 [2021-08-26 14:15:22,151 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 68.5ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:15:22,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2021-08-26 14:15:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3606. [2021-08-26 14:15:22,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3604 states have (on average 3.887069922308546) internal successors, (14009), 3605 states have internal predecessors, (14009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 14009 transitions. [2021-08-26 14:15:22,260 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 14009 transitions. Word has length 17 [2021-08-26 14:15:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:22,260 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 14009 transitions. [2021-08-26 14:15:22,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 14009 transitions. [2021-08-26 14:15:22,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 14:15:22,265 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:22,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:22,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 14:15:22,266 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:22,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:22,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1842590255, now seen corresponding path program 2 times [2021-08-26 14:15:22,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:22,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948205897] [2021-08-26 14:15:22,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:22,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:22,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:22,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948205897] [2021-08-26 14:15:22,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948205897] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:22,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:22,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 14:15:22,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351167698] [2021-08-26 14:15:22,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 14:15:22,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 14:15:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 14:15:22,364 INFO L87 Difference]: Start difference. First operand 3606 states and 14009 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:22,554 INFO L93 Difference]: Finished difference Result 4416 states and 16603 transitions. [2021-08-26 14:15:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 14:15:22,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-08-26 14:15:22,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:22,569 INFO L225 Difference]: With dead ends: 4416 [2021-08-26 14:15:22,569 INFO L226 Difference]: Without dead ends: 4416 [2021-08-26 14:15:22,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2021-08-26 14:15:22,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 3666. [2021-08-26 14:15:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3664 states have (on average 3.8272379912663754) internal successors, (14023), 3665 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 14023 transitions. [2021-08-26 14:15:22,693 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 14023 transitions. Word has length 17 [2021-08-26 14:15:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:22,693 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 14023 transitions. [2021-08-26 14:15:22,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 14023 transitions. [2021-08-26 14:15:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 14:15:22,698 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:22,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:22,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 14:15:22,699 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:22,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:22,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1869347021, now seen corresponding path program 3 times [2021-08-26 14:15:22,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:22,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882476915] [2021-08-26 14:15:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:22,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:22,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:22,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882476915] [2021-08-26 14:15:22,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882476915] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:22,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:22,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 14:15:22,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14067836] [2021-08-26 14:15:22,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 14:15:22,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:22,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 14:15:22,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:15:22,738 INFO L87 Difference]: Start difference. First operand 3666 states and 14023 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:22,823 INFO L93 Difference]: Finished difference Result 4954 states and 18464 transitions. [2021-08-26 14:15:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:15:22,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-08-26 14:15:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:22,840 INFO L225 Difference]: With dead ends: 4954 [2021-08-26 14:15:22,840 INFO L226 Difference]: Without dead ends: 4954 [2021-08-26 14:15:22,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:15:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2021-08-26 14:15:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4928. [2021-08-26 14:15:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4928 states, 4926 states have (on average 3.7391392610637433) internal successors, (18419), 4927 states have internal predecessors, (18419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4928 states to 4928 states and 18419 transitions. [2021-08-26 14:15:22,980 INFO L78 Accepts]: Start accepts. Automaton has 4928 states and 18419 transitions. Word has length 17 [2021-08-26 14:15:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:22,981 INFO L470 AbstractCegarLoop]: Abstraction has 4928 states and 18419 transitions. [2021-08-26 14:15:22,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 4928 states and 18419 transitions. [2021-08-26 14:15:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 14:15:22,987 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:22,987 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:22,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 14:15:22,987 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1003635490, now seen corresponding path program 1 times [2021-08-26 14:15:22,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:22,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780642557] [2021-08-26 14:15:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:22,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780642557] [2021-08-26 14:15:23,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780642557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 14:15:23,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142726738] [2021-08-26 14:15:23,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 14:15:23,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 14:15:23,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 14:15:23,022 INFO L87 Difference]: Start difference. First operand 4928 states and 18419 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,092 INFO L93 Difference]: Finished difference Result 6520 states and 23621 transitions. [2021-08-26 14:15:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 14:15:23,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-08-26 14:15:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,102 INFO L225 Difference]: With dead ends: 6520 [2021-08-26 14:15:23,102 INFO L226 Difference]: Without dead ends: 3288 [2021-08-26 14:15:23,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:15:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-08-26 14:15:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3262. [2021-08-26 14:15:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3260 states have (on average 3.3441717791411043) internal successors, (10902), 3261 states have internal predecessors, (10902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 10902 transitions. [2021-08-26 14:15:23,208 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 10902 transitions. Word has length 17 [2021-08-26 14:15:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,208 INFO L470 AbstractCegarLoop]: Abstraction has 3262 states and 10902 transitions. [2021-08-26 14:15:23,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 10902 transitions. [2021-08-26 14:15:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 14:15:23,212 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,212 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:23,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 14:15:23,212 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1710427035, now seen corresponding path program 1 times [2021-08-26 14:15:23,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914323695] [2021-08-26 14:15:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914323695] [2021-08-26 14:15:23,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914323695] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 14:15:23,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659551591] [2021-08-26 14:15:23,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:23,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,247 INFO L87 Difference]: Start difference. First operand 3262 states and 10902 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,271 INFO L93 Difference]: Finished difference Result 3262 states and 10832 transitions. [2021-08-26 14:15:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-08-26 14:15:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,283 INFO L225 Difference]: With dead ends: 3262 [2021-08-26 14:15:23,283 INFO L226 Difference]: Without dead ends: 2268 [2021-08-26 14:15:23,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2021-08-26 14:15:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1864. [2021-08-26 14:15:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1862 states have (on average 3.2062298603651986) internal successors, (5970), 1863 states have internal predecessors, (5970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 5970 transitions. [2021-08-26 14:15:23,330 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 5970 transitions. Word has length 19 [2021-08-26 14:15:23,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,330 INFO L470 AbstractCegarLoop]: Abstraction has 1864 states and 5970 transitions. [2021-08-26 14:15:23,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 5970 transitions. [2021-08-26 14:15:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 14:15:23,333 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,333 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:15:23,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 14:15:23,333 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1968266259, now seen corresponding path program 1 times [2021-08-26 14:15:23,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209720383] [2021-08-26 14:15:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209720383] [2021-08-26 14:15:23,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209720383] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 14:15:23,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838518898] [2021-08-26 14:15:23,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:23,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:23,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,368 INFO L87 Difference]: Start difference. First operand 1864 states and 5970 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,384 INFO L93 Difference]: Finished difference Result 1864 states and 5928 transitions. [2021-08-26 14:15:23,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:23,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-08-26 14:15:23,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,388 INFO L225 Difference]: With dead ends: 1864 [2021-08-26 14:15:23,388 INFO L226 Difference]: Without dead ends: 1100 [2021-08-26 14:15:23,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-08-26 14:15:23,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1024. [2021-08-26 14:15:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1022 states have (on average 2.7886497064579254) internal successors, (2850), 1023 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 2850 transitions. [2021-08-26 14:15:23,406 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 2850 transitions. Word has length 19 [2021-08-26 14:15:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,407 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 2850 transitions. [2021-08-26 14:15:23,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 2850 transitions. [2021-08-26 14:15:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 14:15:23,408 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,409 INFO L512 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] [2021-08-26 14:15:23,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 14:15:23,409 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2078759532, now seen corresponding path program 1 times [2021-08-26 14:15:23,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721620304] [2021-08-26 14:15:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721620304] [2021-08-26 14:15:23,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721620304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 14:15:23,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015612518] [2021-08-26 14:15:23,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:23,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,440 INFO L87 Difference]: Start difference. First operand 1024 states and 2850 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,459 INFO L93 Difference]: Finished difference Result 910 states and 2472 transitions. [2021-08-26 14:15:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-08-26 14:15:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,462 INFO L225 Difference]: With dead ends: 910 [2021-08-26 14:15:23,462 INFO L226 Difference]: Without dead ends: 910 [2021-08-26 14:15:23,462 INFO L781 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 [2021-08-26 14:15:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-08-26 14:15:23,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 880. [2021-08-26 14:15:23,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 2.7699316628701594) internal successors, (2432), 879 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2432 transitions. [2021-08-26 14:15:23,480 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2432 transitions. Word has length 22 [2021-08-26 14:15:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,481 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2432 transitions. [2021-08-26 14:15:23,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2432 transitions. [2021-08-26 14:15:23,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 14:15:23,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,482 INFO L512 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] [2021-08-26 14:15:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 14:15:23,482 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1678841626, now seen corresponding path program 1 times [2021-08-26 14:15:23,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431218274] [2021-08-26 14:15:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431218274] [2021-08-26 14:15:23,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431218274] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 14:15:23,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574241417] [2021-08-26 14:15:23,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:15:23,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:15:23,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:15:23,514 INFO L87 Difference]: Start difference. First operand 880 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,535 INFO L93 Difference]: Finished difference Result 874 states and 2305 transitions. [2021-08-26 14:15:23,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:15:23,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-08-26 14:15:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,537 INFO L225 Difference]: With dead ends: 874 [2021-08-26 14:15:23,537 INFO L226 Difference]: Without dead ends: 874 [2021-08-26 14:15:23,538 INFO L781 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 [2021-08-26 14:15:23,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-08-26 14:15:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 844. [2021-08-26 14:15:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 842 states have (on average 2.6900237529691213) internal successors, (2265), 843 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2265 transitions. [2021-08-26 14:15:23,550 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2265 transitions. Word has length 22 [2021-08-26 14:15:23,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,550 INFO L470 AbstractCegarLoop]: Abstraction has 844 states and 2265 transitions. [2021-08-26 14:15:23,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,550 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2265 transitions. [2021-08-26 14:15:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 14:15:23,551 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,551 INFO L512 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] [2021-08-26 14:15:23,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 14:15:23,552 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1678842618, now seen corresponding path program 1 times [2021-08-26 14:15:23,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807061741] [2021-08-26 14:15:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807061741] [2021-08-26 14:15:23,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807061741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 14:15:23,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217105621] [2021-08-26 14:15:23,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 14:15:23,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 14:15:23,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:15:23,620 INFO L87 Difference]: Start difference. First operand 844 states and 2265 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:23,683 INFO L93 Difference]: Finished difference Result 850 states and 2156 transitions. [2021-08-26 14:15:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:15:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-08-26 14:15:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:23,685 INFO L225 Difference]: With dead ends: 850 [2021-08-26 14:15:23,685 INFO L226 Difference]: Without dead ends: 814 [2021-08-26 14:15:23,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-08-26 14:15:23,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 716. [2021-08-26 14:15:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 714 states have (on average 2.661064425770308) internal successors, (1900), 715 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1900 transitions. [2021-08-26 14:15:23,694 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1900 transitions. Word has length 22 [2021-08-26 14:15:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:23,694 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1900 transitions. [2021-08-26 14:15:23,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1900 transitions. [2021-08-26 14:15:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:23,696 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:23,696 INFO L512 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] [2021-08-26 14:15:23,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 14:15:23,697 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:23,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:23,697 INFO L82 PathProgramCache]: Analyzing trace with hash -806525173, now seen corresponding path program 1 times [2021-08-26 14:15:23,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:23,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499948746] [2021-08-26 14:15:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:23,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:23,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:23,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499948746] [2021-08-26 14:15:23,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499948746] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:23,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:23,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:23,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802499047] [2021-08-26 14:15:23,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:23,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:23,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:23,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:23,790 INFO L87 Difference]: Start difference. First operand 716 states and 1900 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:24,100 INFO L93 Difference]: Finished difference Result 1028 states and 2728 transitions. [2021-08-26 14:15:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 14:15:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:24,103 INFO L225 Difference]: With dead ends: 1028 [2021-08-26 14:15:24,103 INFO L226 Difference]: Without dead ends: 1028 [2021-08-26 14:15:24,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 83.0ms TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-08-26 14:15:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-08-26 14:15:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 820. [2021-08-26 14:15:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 818 states have (on average 2.667481662591687) internal successors, (2182), 819 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 2182 transitions. [2021-08-26 14:15:24,116 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 2182 transitions. Word has length 23 [2021-08-26 14:15:24,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:24,116 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 2182 transitions. [2021-08-26 14:15:24,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 2182 transitions. [2021-08-26 14:15:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:24,118 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:24,118 INFO L512 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] [2021-08-26 14:15:24,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-26 14:15:24,118 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:24,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2107801352, now seen corresponding path program 1 times [2021-08-26 14:15:24,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:24,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14360525] [2021-08-26 14:15:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:24,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:24,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:24,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14360525] [2021-08-26 14:15:24,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14360525] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:24,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:24,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:24,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657383950] [2021-08-26 14:15:24,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:24,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:24,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:24,228 INFO L87 Difference]: Start difference. First operand 820 states and 2182 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:24,597 INFO L93 Difference]: Finished difference Result 1098 states and 2875 transitions. [2021-08-26 14:15:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-26 14:15:24,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:24,600 INFO L225 Difference]: With dead ends: 1098 [2021-08-26 14:15:24,600 INFO L226 Difference]: Without dead ends: 1098 [2021-08-26 14:15:24,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-08-26 14:15:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-08-26 14:15:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 892. [2021-08-26 14:15:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 890 states have (on average 2.6719101123595506) internal successors, (2378), 891 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 2378 transitions. [2021-08-26 14:15:24,613 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 2378 transitions. Word has length 23 [2021-08-26 14:15:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:24,613 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 2378 transitions. [2021-08-26 14:15:24,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2378 transitions. [2021-08-26 14:15:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:24,614 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:24,614 INFO L512 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] [2021-08-26 14:15:24,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-26 14:15:24,615 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:24,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:24,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1779790679, now seen corresponding path program 2 times [2021-08-26 14:15:24,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:24,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310499168] [2021-08-26 14:15:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:24,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:24,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:24,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310499168] [2021-08-26 14:15:24,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310499168] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:24,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:24,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:24,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453691411] [2021-08-26 14:15:24,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:24,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:24,713 INFO L87 Difference]: Start difference. First operand 892 states and 2378 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:25,002 INFO L93 Difference]: Finished difference Result 1084 states and 2856 transitions. [2021-08-26 14:15:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 14:15:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:25,006 INFO L225 Difference]: With dead ends: 1084 [2021-08-26 14:15:25,006 INFO L226 Difference]: Without dead ends: 1076 [2021-08-26 14:15:25,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 82.1ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-08-26 14:15:25,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2021-08-26 14:15:25,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 884. [2021-08-26 14:15:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 882 states have (on average 2.6666666666666665) internal successors, (2352), 883 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2352 transitions. [2021-08-26 14:15:25,021 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2352 transitions. Word has length 23 [2021-08-26 14:15:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:25,021 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2352 transitions. [2021-08-26 14:15:25,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2352 transitions. [2021-08-26 14:15:25,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:25,023 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:25,023 INFO L512 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] [2021-08-26 14:15:25,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-26 14:15:25,023 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:25,024 INFO L82 PathProgramCache]: Analyzing trace with hash 2076691964, now seen corresponding path program 2 times [2021-08-26 14:15:25,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:25,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694338639] [2021-08-26 14:15:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:25,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:25,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:25,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694338639] [2021-08-26 14:15:25,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694338639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:25,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:25,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:25,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105747966] [2021-08-26 14:15:25,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:25,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:25,127 INFO L87 Difference]: Start difference. First operand 884 states and 2352 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:25,453 INFO L93 Difference]: Finished difference Result 1128 states and 2962 transitions. [2021-08-26 14:15:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-26 14:15:25,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:25,456 INFO L225 Difference]: With dead ends: 1128 [2021-08-26 14:15:25,456 INFO L226 Difference]: Without dead ends: 1128 [2021-08-26 14:15:25,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 92.3ms TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-08-26 14:15:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-08-26 14:15:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 798. [2021-08-26 14:15:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 796 states have (on average 2.6381909547738696) internal successors, (2100), 797 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 2100 transitions. [2021-08-26 14:15:25,467 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 2100 transitions. Word has length 23 [2021-08-26 14:15:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:25,467 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 2100 transitions. [2021-08-26 14:15:25,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 2100 transitions. [2021-08-26 14:15:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:25,469 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:25,469 INFO L512 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] [2021-08-26 14:15:25,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-26 14:15:25,469 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2125960084, now seen corresponding path program 3 times [2021-08-26 14:15:25,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:25,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166042963] [2021-08-26 14:15:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:25,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:25,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:25,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166042963] [2021-08-26 14:15:25,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166042963] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:25,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:25,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:25,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701567682] [2021-08-26 14:15:25,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:25,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:25,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:25,571 INFO L87 Difference]: Start difference. First operand 798 states and 2100 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:25,852 INFO L93 Difference]: Finished difference Result 1066 states and 2808 transitions. [2021-08-26 14:15:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 14:15:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:25,857 INFO L225 Difference]: With dead ends: 1066 [2021-08-26 14:15:25,858 INFO L226 Difference]: Without dead ends: 1056 [2021-08-26 14:15:25,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-08-26 14:15:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-08-26 14:15:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 748. [2021-08-26 14:15:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 746 states have (on average 2.658176943699732) internal successors, (1983), 747 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1983 transitions. [2021-08-26 14:15:25,871 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1983 transitions. Word has length 23 [2021-08-26 14:15:25,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:25,872 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1983 transitions. [2021-08-26 14:15:25,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1983 transitions. [2021-08-26 14:15:25,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:25,874 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:25,874 INFO L512 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] [2021-08-26 14:15:25,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-26 14:15:25,874 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:25,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:25,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1250821905, now seen corresponding path program 1 times [2021-08-26 14:15:25,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:25,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287170792] [2021-08-26 14:15:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:25,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:25,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:25,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287170792] [2021-08-26 14:15:25,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287170792] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:25,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:25,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:25,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218466825] [2021-08-26 14:15:25,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:25,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:25,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:25,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:25,964 INFO L87 Difference]: Start difference. First operand 748 states and 1983 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:26,166 INFO L93 Difference]: Finished difference Result 836 states and 2205 transitions. [2021-08-26 14:15:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:15:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:26,169 INFO L225 Difference]: With dead ends: 836 [2021-08-26 14:15:26,169 INFO L226 Difference]: Without dead ends: 836 [2021-08-26 14:15:26,169 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-08-26 14:15:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 748. [2021-08-26 14:15:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 746 states have (on average 2.658176943699732) internal successors, (1983), 747 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1983 transitions. [2021-08-26 14:15:26,181 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1983 transitions. Word has length 23 [2021-08-26 14:15:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:26,181 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1983 transitions. [2021-08-26 14:15:26,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1983 transitions. [2021-08-26 14:15:26,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:26,182 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:26,182 INFO L512 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] [2021-08-26 14:15:26,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-26 14:15:26,183 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:26,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:26,183 INFO L82 PathProgramCache]: Analyzing trace with hash 448966935, now seen corresponding path program 2 times [2021-08-26 14:15:26,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:26,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799408176] [2021-08-26 14:15:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:26,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:26,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:26,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799408176] [2021-08-26 14:15:26,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799408176] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:26,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:26,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:26,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539681077] [2021-08-26 14:15:26,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:26,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:26,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:26,284 INFO L87 Difference]: Start difference. First operand 748 states and 1983 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:26,505 INFO L93 Difference]: Finished difference Result 950 states and 2530 transitions. [2021-08-26 14:15:26,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 14:15:26,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:26,508 INFO L225 Difference]: With dead ends: 950 [2021-08-26 14:15:26,508 INFO L226 Difference]: Without dead ends: 950 [2021-08-26 14:15:26,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:26,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2021-08-26 14:15:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 738. [2021-08-26 14:15:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 736 states have (on average 2.657608695652174) internal successors, (1956), 737 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1956 transitions. [2021-08-26 14:15:26,519 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1956 transitions. Word has length 23 [2021-08-26 14:15:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:26,519 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1956 transitions. [2021-08-26 14:15:26,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1956 transitions. [2021-08-26 14:15:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 14:15:26,521 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:26,521 INFO L512 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] [2021-08-26 14:15:26,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-26 14:15:26,521 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:26,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1701028235, now seen corresponding path program 3 times [2021-08-26 14:15:26,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:26,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545473843] [2021-08-26 14:15:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:26,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:26,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:26,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545473843] [2021-08-26 14:15:26,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545473843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:26,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:26,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:26,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805846609] [2021-08-26 14:15:26,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:26,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:26,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:26,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:26,621 INFO L87 Difference]: Start difference. First operand 738 states and 1956 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:26,969 INFO L93 Difference]: Finished difference Result 900 states and 2384 transitions. [2021-08-26 14:15:26,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-26 14:15:26,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-08-26 14:15:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:26,971 INFO L225 Difference]: With dead ends: 900 [2021-08-26 14:15:26,971 INFO L226 Difference]: Without dead ends: 900 [2021-08-26 14:15:26,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-08-26 14:15:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-08-26 14:15:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 674. [2021-08-26 14:15:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 672 states have (on average 2.6547619047619047) internal successors, (1784), 673 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1784 transitions. [2021-08-26 14:15:26,985 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1784 transitions. Word has length 23 [2021-08-26 14:15:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:26,985 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 1784 transitions. [2021-08-26 14:15:26,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1784 transitions. [2021-08-26 14:15:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:26,987 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:26,987 INFO L512 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] [2021-08-26 14:15:26,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-26 14:15:26,987 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:26,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:26,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1623191798, now seen corresponding path program 1 times [2021-08-26 14:15:26,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:26,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088205665] [2021-08-26 14:15:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:26,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088205665] [2021-08-26 14:15:27,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088205665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:27,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442926014] [2021-08-26 14:15:27,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:27,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:27,054 INFO L87 Difference]: Start difference. First operand 674 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:27,198 INFO L93 Difference]: Finished difference Result 862 states and 2356 transitions. [2021-08-26 14:15:27,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:27,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:27,200 INFO L225 Difference]: With dead ends: 862 [2021-08-26 14:15:27,200 INFO L226 Difference]: Without dead ends: 670 [2021-08-26 14:15:27,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-08-26 14:15:27,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 562. [2021-08-26 14:15:27,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 560 states have (on average 2.6464285714285714) internal successors, (1482), 561 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1482 transitions. [2021-08-26 14:15:27,208 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1482 transitions. Word has length 28 [2021-08-26 14:15:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:27,209 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1482 transitions. [2021-08-26 14:15:27,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1482 transitions. [2021-08-26 14:15:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:27,211 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:27,211 INFO L512 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] [2021-08-26 14:15:27,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-26 14:15:27,211 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:27,211 INFO L82 PathProgramCache]: Analyzing trace with hash -309154427, now seen corresponding path program 1 times [2021-08-26 14:15:27,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:27,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31566231] [2021-08-26 14:15:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:27,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31566231] [2021-08-26 14:15:27,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31566231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 14:15:27,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940024842] [2021-08-26 14:15:27,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 14:15:27,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 14:15:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-26 14:15:27,280 INFO L87 Difference]: Start difference. First operand 562 states and 1482 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:27,464 INFO L93 Difference]: Finished difference Result 620 states and 1697 transitions. [2021-08-26 14:15:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 14:15:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:27,466 INFO L225 Difference]: With dead ends: 620 [2021-08-26 14:15:27,466 INFO L226 Difference]: Without dead ends: 544 [2021-08-26 14:15:27,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 81.7ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-08-26 14:15:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-08-26 14:15:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 506. [2021-08-26 14:15:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 504 states have (on average 2.6646825396825395) internal successors, (1343), 505 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1343 transitions. [2021-08-26 14:15:27,473 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1343 transitions. Word has length 28 [2021-08-26 14:15:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:27,473 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 1343 transitions. [2021-08-26 14:15:27,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1343 transitions. [2021-08-26 14:15:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:27,474 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:27,474 INFO L512 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] [2021-08-26 14:15:27,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-26 14:15:27,475 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:27,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:27,475 INFO L82 PathProgramCache]: Analyzing trace with hash 980706829, now seen corresponding path program 2 times [2021-08-26 14:15:27,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:27,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808860389] [2021-08-26 14:15:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:27,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808860389] [2021-08-26 14:15:27,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808860389] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:27,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931940968] [2021-08-26 14:15:27,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:27,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:27,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:27,549 INFO L87 Difference]: Start difference. First operand 506 states and 1343 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:27,653 INFO L93 Difference]: Finished difference Result 698 states and 1923 transitions. [2021-08-26 14:15:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:27,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:27,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:27,654 INFO L225 Difference]: With dead ends: 698 [2021-08-26 14:15:27,654 INFO L226 Difference]: Without dead ends: 488 [2021-08-26 14:15:27,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:27,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-08-26 14:15:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 414. [2021-08-26 14:15:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 412 states have (on average 2.628640776699029) internal successors, (1083), 413 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1083 transitions. [2021-08-26 14:15:27,660 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1083 transitions. Word has length 28 [2021-08-26 14:15:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:27,660 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1083 transitions. [2021-08-26 14:15:27,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1083 transitions. [2021-08-26 14:15:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:27,661 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:27,661 INFO L512 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] [2021-08-26 14:15:27,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-26 14:15:27,662 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:27,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1266110615, now seen corresponding path program 3 times [2021-08-26 14:15:27,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:27,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631146018] [2021-08-26 14:15:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:27,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631146018] [2021-08-26 14:15:27,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631146018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 14:15:27,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889610608] [2021-08-26 14:15:27,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 14:15:27,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 14:15:27,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 14:15:27,699 INFO L87 Difference]: Start difference. First operand 414 states and 1083 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:27,732 INFO L93 Difference]: Finished difference Result 496 states and 1265 transitions. [2021-08-26 14:15:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 14:15:27,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:27,733 INFO L225 Difference]: With dead ends: 496 [2021-08-26 14:15:27,733 INFO L226 Difference]: Without dead ends: 488 [2021-08-26 14:15:27,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:15:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-08-26 14:15:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 414. [2021-08-26 14:15:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 412 states have (on average 2.6092233009708736) internal successors, (1075), 413 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1075 transitions. [2021-08-26 14:15:27,738 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1075 transitions. Word has length 28 [2021-08-26 14:15:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:27,738 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1075 transitions. [2021-08-26 14:15:27,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1075 transitions. [2021-08-26 14:15:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:27,739 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:27,739 INFO L512 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] [2021-08-26 14:15:27,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-26 14:15:27,740 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:27,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1054074660, now seen corresponding path program 1 times [2021-08-26 14:15:27,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:27,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458560467] [2021-08-26 14:15:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:27,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458560467] [2021-08-26 14:15:27,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458560467] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 14:15:27,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330050845] [2021-08-26 14:15:27,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 14:15:27,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 14:15:27,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:15:27,800 INFO L87 Difference]: Start difference. First operand 414 states and 1075 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:27,915 INFO L93 Difference]: Finished difference Result 470 states and 1207 transitions. [2021-08-26 14:15:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:27,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:27,916 INFO L225 Difference]: With dead ends: 470 [2021-08-26 14:15:27,916 INFO L226 Difference]: Without dead ends: 398 [2021-08-26 14:15:27,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 46.2ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-08-26 14:15:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-08-26 14:15:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-08-26 14:15:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 396 states have (on average 2.5833333333333335) internal successors, (1023), 397 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1023 transitions. [2021-08-26 14:15:27,922 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1023 transitions. Word has length 28 [2021-08-26 14:15:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:27,922 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 1023 transitions. [2021-08-26 14:15:27,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1023 transitions. [2021-08-26 14:15:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:27,923 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:27,923 INFO L512 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] [2021-08-26 14:15:27,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-26 14:15:27,923 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:27,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:27,923 INFO L82 PathProgramCache]: Analyzing trace with hash 783763437, now seen corresponding path program 4 times [2021-08-26 14:15:27,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:27,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615053877] [2021-08-26 14:15:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:27,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:27,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:27,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615053877] [2021-08-26 14:15:27,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615053877] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:27,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:27,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:27,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338843495] [2021-08-26 14:15:27,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:27,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:27,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:27,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:27,992 INFO L87 Difference]: Start difference. First operand 398 states and 1023 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,109 INFO L93 Difference]: Finished difference Result 470 states and 1176 transitions. [2021-08-26 14:15:28,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:28,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,111 INFO L225 Difference]: With dead ends: 470 [2021-08-26 14:15:28,111 INFO L226 Difference]: Without dead ends: 370 [2021-08-26 14:15:28,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:28,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-08-26 14:15:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-08-26 14:15:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 368 states have (on average 2.489130434782609) internal successors, (916), 369 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 916 transitions. [2021-08-26 14:15:28,115 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 916 transitions. Word has length 28 [2021-08-26 14:15:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,115 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 916 transitions. [2021-08-26 14:15:28,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 916 transitions. [2021-08-26 14:15:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:28,116 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:28,116 INFO L512 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] [2021-08-26 14:15:28,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-26 14:15:28,116 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:28,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:28,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1617191269, now seen corresponding path program 5 times [2021-08-26 14:15:28,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:28,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850477427] [2021-08-26 14:15:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:28,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:28,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:28,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850477427] [2021-08-26 14:15:28,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850477427] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:28,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:28,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:28,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898024116] [2021-08-26 14:15:28,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:28,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:28,167 INFO L87 Difference]: Start difference. First operand 370 states and 916 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,297 INFO L93 Difference]: Finished difference Result 354 states and 883 transitions. [2021-08-26 14:15:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-26 14:15:28,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,298 INFO L225 Difference]: With dead ends: 354 [2021-08-26 14:15:28,298 INFO L226 Difference]: Without dead ends: 224 [2021-08-26 14:15:28,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-08-26 14:15:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-08-26 14:15:28,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 210. [2021-08-26 14:15:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 2.574162679425837) internal successors, (538), 209 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 538 transitions. [2021-08-26 14:15:28,301 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 538 transitions. Word has length 28 [2021-08-26 14:15:28,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,301 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 538 transitions. [2021-08-26 14:15:28,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 538 transitions. [2021-08-26 14:15:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:28,302 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:28,302 INFO L512 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] [2021-08-26 14:15:28,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-26 14:15:28,302 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:28,302 INFO L82 PathProgramCache]: Analyzing trace with hash -617807064, now seen corresponding path program 2 times [2021-08-26 14:15:28,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:28,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730616974] [2021-08-26 14:15:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:28,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:28,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:28,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730616974] [2021-08-26 14:15:28,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730616974] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:28,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:28,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 14:15:28,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261920575] [2021-08-26 14:15:28,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 14:15:28,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 14:15:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 14:15:28,332 INFO L87 Difference]: Start difference. First operand 210 states and 538 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,361 INFO L93 Difference]: Finished difference Result 278 states and 692 transitions. [2021-08-26 14:15:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 14:15:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,362 INFO L225 Difference]: With dead ends: 278 [2021-08-26 14:15:28,362 INFO L226 Difference]: Without dead ends: 270 [2021-08-26 14:15:28,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:15:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-08-26 14:15:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 210. [2021-08-26 14:15:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 2.535885167464115) internal successors, (530), 209 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 530 transitions. [2021-08-26 14:15:28,365 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 530 transitions. Word has length 28 [2021-08-26 14:15:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,366 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 530 transitions. [2021-08-26 14:15:28,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 530 transitions. [2021-08-26 14:15:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:28,366 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:28,366 INFO L512 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] [2021-08-26 14:15:28,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-26 14:15:28,367 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:28,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1461165240, now seen corresponding path program 1 times [2021-08-26 14:15:28,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:28,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974423273] [2021-08-26 14:15:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:28,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:28,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:28,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974423273] [2021-08-26 14:15:28,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974423273] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:28,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:28,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 14:15:28,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273807333] [2021-08-26 14:15:28,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 14:15:28,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:28,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 14:15:28,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:15:28,449 INFO L87 Difference]: Start difference. First operand 210 states and 530 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,555 INFO L93 Difference]: Finished difference Result 258 states and 648 transitions. [2021-08-26 14:15:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,556 INFO L225 Difference]: With dead ends: 258 [2021-08-26 14:15:28,556 INFO L226 Difference]: Without dead ends: 194 [2021-08-26 14:15:28,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 52.2ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-08-26 14:15:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-08-26 14:15:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-08-26 14:15:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 2.476683937823834) internal successors, (478), 193 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 478 transitions. [2021-08-26 14:15:28,558 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 478 transitions. Word has length 28 [2021-08-26 14:15:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,559 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 478 transitions. [2021-08-26 14:15:28,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 478 transitions. [2021-08-26 14:15:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:28,559 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:28,559 INFO L512 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] [2021-08-26 14:15:28,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-26 14:15:28,559 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:28,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1064458348, now seen corresponding path program 3 times [2021-08-26 14:15:28,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:28,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866598881] [2021-08-26 14:15:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:28,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:28,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:28,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:28,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866598881] [2021-08-26 14:15:28,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866598881] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:28,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:28,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:28,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724885776] [2021-08-26 14:15:28,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:28,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:28,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:28,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:28,624 INFO L87 Difference]: Start difference. First operand 194 states and 478 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,716 INFO L93 Difference]: Finished difference Result 256 states and 613 transitions. [2021-08-26 14:15:28,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 14:15:28,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,717 INFO L225 Difference]: With dead ends: 256 [2021-08-26 14:15:28,717 INFO L226 Difference]: Without dead ends: 158 [2021-08-26 14:15:28,717 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 59.2ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-08-26 14:15:28,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-08-26 14:15:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.1974522292993632) internal successors, (345), 157 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 345 transitions. [2021-08-26 14:15:28,719 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 345 transitions. Word has length 28 [2021-08-26 14:15:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,719 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 345 transitions. [2021-08-26 14:15:28,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 345 transitions. [2021-08-26 14:15:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 14:15:28,719 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:15:28,720 INFO L512 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] [2021-08-26 14:15:28,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-26 14:15:28,720 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-08-26 14:15:28,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:15:28,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1088797110, now seen corresponding path program 4 times [2021-08-26 14:15:28,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:15:28,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544526879] [2021-08-26 14:15:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:15:28,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:15:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:15:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:15:28,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:15:28,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544526879] [2021-08-26 14:15:28,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544526879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:15:28,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:15:28,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 14:15:28,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361560008] [2021-08-26 14:15:28,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 14:15:28,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:15:28,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 14:15:28,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 14:15:28,793 INFO L87 Difference]: Start difference. First operand 158 states and 345 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:15:28,855 INFO L93 Difference]: Finished difference Result 148 states and 326 transitions. [2021-08-26 14:15:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:15:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-26 14:15:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:15:28,855 INFO L225 Difference]: With dead ends: 148 [2021-08-26 14:15:28,855 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 14:15:28,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-26 14:15:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 14:15:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 14:15:28,856 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) [2021-08-26 14:15:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 14:15:28,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-08-26 14:15:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:15:28,856 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 14:15:28,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 14:15:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 14:15:28,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:15:28,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:15:28,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-26 14:15:28,862 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-26 14:15:28,862 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 14:15:28,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:15:28 BasicIcfg [2021-08-26 14:15:28,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 14:15:28,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 14:15:28,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 14:15:28,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 14:15:28,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:15:14" (3/4) ... [2021-08-26 14:15:28,865 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 14:15:28,868 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader1 [2021-08-26 14:15:28,868 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader2 [2021-08-26 14:15:28,868 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_updater [2021-08-26 14:15:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-08-26 14:15:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 14:15:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 14:15:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 14:15:28,893 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 14:15:28,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 14:15:28,895 INFO L168 Benchmark]: Toolchain (without parser) took 16401.26 ms. Allocated memory was 52.4 MB in the beginning and 742.4 MB in the end (delta: 690.0 MB). Free memory was 27.8 MB in the beginning and 214.3 MB in the end (delta: -186.4 MB). Peak memory consumption was 503.4 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,895 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 14:15:28,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.94 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.6 MB in the beginning and 35.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.18 ms. Allocated memory is still 62.9 MB. Free memory was 35.0 MB in the beginning and 44.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,896 INFO L168 Benchmark]: Boogie Preprocessor took 21.34 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.4 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 14:15:28,896 INFO L168 Benchmark]: RCFGBuilder took 1341.52 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.4 MB in the beginning and 45.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,896 INFO L168 Benchmark]: TraceAbstraction took 14587.96 ms. Allocated memory was 75.5 MB in the beginning and 742.4 MB in the end (delta: 666.9 MB). Free memory was 45.4 MB in the beginning and 216.4 MB in the end (delta: -170.9 MB). Peak memory consumption was 496.0 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,897 INFO L168 Benchmark]: Witness Printer took 30.42 ms. Allocated memory is still 742.4 MB. Free memory was 216.4 MB in the beginning and 214.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 14:15:28,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 361.94 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.6 MB in the beginning and 35.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.18 ms. Allocated memory is still 62.9 MB. Free memory was 35.0 MB in the beginning and 44.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.34 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.4 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1341.52 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.4 MB in the beginning and 45.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14587.96 ms. Allocated memory was 75.5 MB in the beginning and 742.4 MB in the end (delta: 666.9 MB). Free memory was 45.4 MB in the beginning and 216.4 MB in the end (delta: -170.9 MB). Peak memory consumption was 496.0 MB. Max. memory is 16.1 GB. * Witness Printer took 30.42 ms. Allocated memory is still 742.4 MB. Free memory was 216.4 MB in the beginning and 214.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6013.1ms, 170 PlacesBefore, 62 PlacesAfterwards, 178 TransitionsBefore, 66 TransitionsAfterwards, 9890 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 139 TotalNumberOfCompositions, 19920 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11579, positive: 11269, positive conditional: 0, positive unconditional: 11269, negative: 310, negative conditional: 0, negative unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6855, positive: 6743, positive conditional: 0, positive unconditional: 6743, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6855, positive: 6709, positive conditional: 0, positive unconditional: 6709, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 146, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 339, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11579, positive: 4526, positive conditional: 0, positive unconditional: 4526, negative: 198, negative conditional: 0, negative unconditional: 198, unknown: 6855, unknown conditional: 0, unknown unconditional: 6855] , Statistics on independence cache: Total cache size (in pairs): 785, Positive cache size: 738, Positive conditional cache size: 0, Positive unconditional cache size: 738, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 712]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 719]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 264 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 14404.3ms, OverallIterations: 31, TraceHistogramMax: 1, EmptinessCheckTime: 82.3ms, AutomataDifference: 4640.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6146.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2284 SDtfs, 2795 SDslu, 5233 SDs, 0 SdLazy, 4979 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2447.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1343.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4928occurred in iteration=6, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1115.9ms AutomataMinimizationTime, 31 MinimizatonAttempts, 4370 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 57.2ms SsaConstructionTime, 315.4ms SatisfiabilityAnalysisTime, 1718.3ms InterpolantComputationTime, 702 NumberOfCodeBlocks, 702 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 671 ConstructedInterpolants, 0 QuantifiedInterpolants, 3518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 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! [2021-08-26 14:15:28,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...