./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 997cd7c3 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-997cd7c-m [2021-09-22 14:26:47,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:26:47,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:26:47,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:26:47,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:26:47,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:26:47,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:26:47,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:26:47,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:26:47,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:26:47,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:26:47,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:26:47,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:26:47,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:26:47,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:26:47,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:26:47,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:26:47,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:26:47,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:26:47,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:26:47,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:26:47,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:26:47,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:26:47,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:26:47,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:26:47,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:26:47,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:26:47,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:26:47,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:26:47,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:26:47,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:26:47,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:26:47,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:26:47,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:26:47,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:26:47,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:26:47,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:26:47,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:26:47,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:26:47,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:26:47,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:26:47,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:26:47,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:26:47,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:26:47,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:26:47,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:26:47,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:26:47,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:26:47,184 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:26:47,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:26:47,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:26:47,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:26:47,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:26:47,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:26:47,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:26:47,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:26:47,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:26:47,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:26:47,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:26:47,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:26:47,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:26:47,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:26:47,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:26:47,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:26:47,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:26:47,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:26:47,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:26:47,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:26:47,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:26:47,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:26:47,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:26:47,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:26:47,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92de787da58164b8efa82fae19f262746d58018b [2021-09-22 14:26:47,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:26:47,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:26:47,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:26:47,529 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:26:47,530 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:26:47,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2021-09-22 14:26:47,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0af9c6c4/0744b35ba61f4323ad27c5324d8b5b30/FLAGf384c457e [2021-09-22 14:26:48,199 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:26:48,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2021-09-22 14:26:48,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0af9c6c4/0744b35ba61f4323ad27c5324d8b5b30/FLAGf384c457e [2021-09-22 14:26:48,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0af9c6c4/0744b35ba61f4323ad27c5324d8b5b30 [2021-09-22 14:26:48,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:26:48,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:26:48,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:26:48,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:26:48,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:26:48,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:26:48" (1/1) ... [2021-09-22 14:26:48,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18018383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:48, skipping insertion in model container [2021-09-22 14:26:48,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:26:48" (1/1) ... [2021-09-22 14:26:48,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:26:48,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:26:49,034 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] [2021-09-22 14:26:49,039 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] [2021-09-22 14:26:49,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:26:49,073 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:26:49,116 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] [2021-09-22 14:26:49,120 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] [2021-09-22 14:26:49,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:26:49,190 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:26:49,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49 WrapperNode [2021-09-22 14:26:49,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:26:49,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:26:49,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:26:49,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:26:49,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:26:49,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:26:49,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:26:49,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:26:49,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:26:49,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:26:49,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:26:49,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:26:49,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (1/1) ... [2021-09-22 14:26:49,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:26:49,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:26:49,361 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) [2021-09-22 14:26:49,371 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 [2021-09-22 14:26:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2021-09-22 14:26:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2021-09-22 14:26:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2021-09-22 14:26:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2021-09-22 14:26:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-09-22 14:26:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:26:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2021-09-22 14:26:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2021-09-22 14:26:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-09-22 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:26:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:26:49,403 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:26:50,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:26:50,335 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-09-22 14:26:50,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:26:50 BoogieIcfgContainer [2021-09-22 14:26:50,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:26:50,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:26:50,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:26:50,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:26:50,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:26:48" (1/3) ... [2021-09-22 14:26:50,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d36a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:26:50, skipping insertion in model container [2021-09-22 14:26:50,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:26:49" (2/3) ... [2021-09-22 14:26:50,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d36a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:26:50, skipping insertion in model container [2021-09-22 14:26:50,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:26:50" (3/3) ... [2021-09-22 14:26:50,345 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2021-09-22 14:26:50,350 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:26:50,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:26:50,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:26:50,351 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:26:50,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,385 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,385 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,388 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,388 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,389 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,390 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,394 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,394 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,394 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,396 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,396 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,396 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,397 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,397 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,398 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,398 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,398 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,400 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,401 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,402 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,402 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,402 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,403 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,403 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,403 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,403 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,403 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,404 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,408 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,409 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,410 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,411 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,412 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,412 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,412 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,413 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,413 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,413 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,414 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,416 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,416 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,419 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,420 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,420 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,420 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,420 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,420 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,421 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,421 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,421 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,421 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,421 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,422 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,424 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,425 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,426 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,427 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,427 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,427 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,427 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,427 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,428 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,429 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,430 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,430 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,430 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,430 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,437 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,437 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,437 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,438 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,438 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,438 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,438 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,439 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,440 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,441 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,441 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,441 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,441 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,441 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,442 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,443 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,444 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,445 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,445 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,445 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,445 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,445 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,446 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,447 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,447 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,447 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,447 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,447 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,448 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,449 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,450 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,451 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,452 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,453 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,453 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,453 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,453 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,453 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,454 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,455 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,456 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,458 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,459 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,459 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,459 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,459 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,459 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,460 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,461 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,462 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,463 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,464 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,464 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,464 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,464 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,464 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,466 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,467 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,468 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,469 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,469 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,469 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,469 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,469 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,471 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,472 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,473 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,474 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:26:50,479 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-09-22 14:26:50,514 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:26:50,519 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 [2021-09-22 14:26:50,519 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-09-22 14:26:50,531 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:26:50,538 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 178 transitions, 380 flow [2021-09-22 14:26:50,540 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 178 transitions, 380 flow [2021-09-22 14:26:50,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 178 transitions, 380 flow [2021-09-22 14:26:50,598 INFO L129 PetriNetUnfolder]: 18/175 cut-off events. [2021-09-22 14:26:50,598 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-09-22 14:26:50,603 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. [2021-09-22 14:26:50,609 INFO L116 LiptonReduction]: Number of co-enabled transitions 9890 [2021-09-22 14:26:56,342 INFO L131 LiptonReduction]: Checked pairs total: 19920 [2021-09-22 14:26:56,342 INFO L133 LiptonReduction]: Total number of compositions: 139 [2021-09-22 14:26:56,352 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 66 transitions, 156 flow [2021-09-22 14:26:56,509 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) [2021-09-22 14:26:56,524 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) [2021-09-22 14:26:56,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-09-22 14:26:56,545 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:56,546 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:56,546 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:56,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:56,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1727739574, now seen corresponding path program 1 times [2021-09-22 14:26:56,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:56,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512218030] [2021-09-22 14:26:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:56,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:56,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:56,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512218030] [2021-09-22 14:26:56,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512218030] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:56,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:56,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:26:56,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295514332] [2021-09-22 14:26:56,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:26:56,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:56,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:26:56,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:56,810 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) [2021-09-22 14:26:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:56,958 INFO L93 Difference]: Finished difference Result 3942 states and 15358 transitions. [2021-09-22 14:26:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:26:56,960 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 [2021-09-22 14:26:56,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:57,017 INFO L225 Difference]: With dead ends: 3942 [2021-09-22 14:26:57,017 INFO L226 Difference]: Without dead ends: 3942 [2021-09-22 14:26:57,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2021-09-22 14:26:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3504. [2021-09-22 14:26:57,237 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) [2021-09-22 14:26:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 13902 transitions. [2021-09-22 14:26:57,261 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 13902 transitions. Word has length 12 [2021-09-22 14:26:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:57,261 INFO L470 AbstractCegarLoop]: Abstraction has 3504 states and 13902 transitions. [2021-09-22 14:26:57,267 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) [2021-09-22 14:26:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 13902 transitions. [2021-09-22 14:26:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:26:57,271 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:57,271 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:57,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:26:57,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:57,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:57,273 INFO L82 PathProgramCache]: Analyzing trace with hash 2025812155, now seen corresponding path program 1 times [2021-09-22 14:26:57,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:57,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862983046] [2021-09-22 14:26:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:57,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:57,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:57,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862983046] [2021-09-22 14:26:57,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862983046] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:57,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:57,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:26:57,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108011826] [2021-09-22 14:26:57,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:26:57,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:57,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:26:57,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:57,395 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) [2021-09-22 14:26:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:57,448 INFO L93 Difference]: Finished difference Result 3414 states and 13546 transitions. [2021-09-22 14:26:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:26:57,449 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 [2021-09-22 14:26:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:57,520 INFO L225 Difference]: With dead ends: 3414 [2021-09-22 14:26:57,524 INFO L226 Difference]: Without dead ends: 3414 [2021-09-22 14:26:57,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:57,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2021-09-22 14:26:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3414. [2021-09-22 14:26:57,657 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) [2021-09-22 14:26:57,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 13546 transitions. [2021-09-22 14:26:57,676 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 13546 transitions. Word has length 13 [2021-09-22 14:26:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:57,676 INFO L470 AbstractCegarLoop]: Abstraction has 3414 states and 13546 transitions. [2021-09-22 14:26:57,676 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) [2021-09-22 14:26:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 13546 transitions. [2021-09-22 14:26:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:26:57,679 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:57,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:57,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:26:57,680 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:57,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:57,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2025811999, now seen corresponding path program 1 times [2021-09-22 14:26:57,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:57,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783861969] [2021-09-22 14:26:57,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:57,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:57,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:57,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783861969] [2021-09-22 14:26:57,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783861969] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:57,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:57,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:26:57,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609784300] [2021-09-22 14:26:57,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:26:57,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:57,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:26:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:57,757 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) [2021-09-22 14:26:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:57,882 INFO L93 Difference]: Finished difference Result 3334 states and 13224 transitions. [2021-09-22 14:26:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:26:57,883 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 [2021-09-22 14:26:57,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:57,924 INFO L225 Difference]: With dead ends: 3334 [2021-09-22 14:26:57,955 INFO L226 Difference]: Without dead ends: 3334 [2021-09-22 14:26:57,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:26:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-09-22 14:26:58,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-09-22 14:26:58,165 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) [2021-09-22 14:26:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 13224 transitions. [2021-09-22 14:26:58,183 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 13224 transitions. Word has length 13 [2021-09-22 14:26:58,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:58,183 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 13224 transitions. [2021-09-22 14:26:58,184 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) [2021-09-22 14:26:58,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 13224 transitions. [2021-09-22 14:26:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:26:58,189 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:58,189 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:58,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:26:58,190 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:58,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:58,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1157437171, now seen corresponding path program 1 times [2021-09-22 14:26:58,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:58,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064692837] [2021-09-22 14:26:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:58,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:58,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:58,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064692837] [2021-09-22 14:26:58,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064692837] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:58,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:58,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:26:58,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789200991] [2021-09-22 14:26:58,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:26:58,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:26:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:26:58,317 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) [2021-09-22 14:26:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:58,508 INFO L93 Difference]: Finished difference Result 3962 states and 15196 transitions. [2021-09-22 14:26:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:26:58,508 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 [2021-09-22 14:26:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:58,550 INFO L225 Difference]: With dead ends: 3962 [2021-09-22 14:26:58,551 INFO L226 Difference]: Without dead ends: 3960 [2021-09-22 14:26:58,551 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:26:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2021-09-22 14:26:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3606. [2021-09-22 14:26:58,685 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) [2021-09-22 14:26:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 14009 transitions. [2021-09-22 14:26:58,749 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 14009 transitions. Word has length 17 [2021-09-22 14:26:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:58,749 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 14009 transitions. [2021-09-22 14:26:58,749 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) [2021-09-22 14:26:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 14009 transitions. [2021-09-22 14:26:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:26:58,754 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:58,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:58,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:26:58,755 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:58,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1842590255, now seen corresponding path program 2 times [2021-09-22 14:26:58,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:58,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583059253] [2021-09-22 14:26:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:58,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:58,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:58,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583059253] [2021-09-22 14:26:58,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583059253] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:58,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:58,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:26:58,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299854768] [2021-09-22 14:26:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:26:58,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:26:58,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:26:58,826 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) [2021-09-22 14:26:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:59,130 INFO L93 Difference]: Finished difference Result 4416 states and 16603 transitions. [2021-09-22 14:26:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-09-22 14:26:59,131 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 [2021-09-22 14:26:59,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:59,151 INFO L225 Difference]: With dead ends: 4416 [2021-09-22 14:26:59,152 INFO L226 Difference]: Without dead ends: 4416 [2021-09-22 14:26:59,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:26:59,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2021-09-22 14:26:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 3666. [2021-09-22 14:26:59,302 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) [2021-09-22 14:26:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 14023 transitions. [2021-09-22 14:26:59,317 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 14023 transitions. Word has length 17 [2021-09-22 14:26:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:59,318 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 14023 transitions. [2021-09-22 14:26:59,318 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) [2021-09-22 14:26:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 14023 transitions. [2021-09-22 14:26:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:26:59,324 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:59,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:59,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:26:59,325 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:59,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1869347021, now seen corresponding path program 3 times [2021-09-22 14:26:59,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:59,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671203182] [2021-09-22 14:26:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:59,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:59,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:59,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671203182] [2021-09-22 14:26:59,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671203182] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:59,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:59,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:26:59,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457630718] [2021-09-22 14:26:59,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:26:59,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:59,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:26:59,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:26:59,404 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) [2021-09-22 14:26:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:59,505 INFO L93 Difference]: Finished difference Result 4954 states and 18464 transitions. [2021-09-22 14:26:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:26:59,505 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 [2021-09-22 14:26:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:59,525 INFO L225 Difference]: With dead ends: 4954 [2021-09-22 14:26:59,526 INFO L226 Difference]: Without dead ends: 4954 [2021-09-22 14:26:59,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:26:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2021-09-22 14:26:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4928. [2021-09-22 14:26:59,683 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) [2021-09-22 14:26:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4928 states to 4928 states and 18419 transitions. [2021-09-22 14:26:59,704 INFO L78 Accepts]: Start accepts. Automaton has 4928 states and 18419 transitions. Word has length 17 [2021-09-22 14:26:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:26:59,705 INFO L470 AbstractCegarLoop]: Abstraction has 4928 states and 18419 transitions. [2021-09-22 14:26:59,705 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) [2021-09-22 14:26:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 4928 states and 18419 transitions. [2021-09-22 14:26:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:26:59,711 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:26:59,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:26:59,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:26:59,712 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:26:59,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:26:59,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1003635490, now seen corresponding path program 1 times [2021-09-22 14:26:59,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:26:59,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022632023] [2021-09-22 14:26:59,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:26:59,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:26:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:26:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:26:59,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:26:59,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022632023] [2021-09-22 14:26:59,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022632023] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:26:59,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:26:59,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:26:59,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522307362] [2021-09-22 14:26:59,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:26:59,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:26:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:26:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:26:59,770 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) [2021-09-22 14:26:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:26:59,850 INFO L93 Difference]: Finished difference Result 6520 states and 23621 transitions. [2021-09-22 14:26:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:26:59,850 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 [2021-09-22 14:26:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:26:59,861 INFO L225 Difference]: With dead ends: 6520 [2021-09-22 14:26:59,862 INFO L226 Difference]: Without dead ends: 3288 [2021-09-22 14:26:59,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:26:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-09-22 14:27:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3262. [2021-09-22 14:27:00,007 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) [2021-09-22 14:27:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 10902 transitions. [2021-09-22 14:27:00,019 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 10902 transitions. Word has length 17 [2021-09-22 14:27:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,020 INFO L470 AbstractCegarLoop]: Abstraction has 3262 states and 10902 transitions. [2021-09-22 14:27:00,020 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) [2021-09-22 14:27:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 10902 transitions. [2021-09-22 14:27:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-09-22 14:27:00,024 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,024 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:00,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:27:00,024 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1710427035, now seen corresponding path program 1 times [2021-09-22 14:27:00,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750949207] [2021-09-22 14:27:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750949207] [2021-09-22 14:27:00,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750949207] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:00,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293327231] [2021-09-22 14:27:00,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:00,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:00,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,057 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) [2021-09-22 14:27:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:00,081 INFO L93 Difference]: Finished difference Result 3262 states and 10832 transitions. [2021-09-22 14:27:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:00,082 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 [2021-09-22 14:27:00,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:00,090 INFO L225 Difference]: With dead ends: 3262 [2021-09-22 14:27:00,090 INFO L226 Difference]: Without dead ends: 2268 [2021-09-22 14:27:00,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2021-09-22 14:27:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1864. [2021-09-22 14:27:00,133 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) [2021-09-22 14:27:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 5970 transitions. [2021-09-22 14:27:00,140 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 5970 transitions. Word has length 19 [2021-09-22 14:27:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,140 INFO L470 AbstractCegarLoop]: Abstraction has 1864 states and 5970 transitions. [2021-09-22 14:27:00,141 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) [2021-09-22 14:27:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 5970 transitions. [2021-09-22 14:27:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-09-22 14:27:00,192 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,193 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:00,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:27:00,193 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1968266259, now seen corresponding path program 1 times [2021-09-22 14:27:00,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118087160] [2021-09-22 14:27:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118087160] [2021-09-22 14:27:00,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118087160] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:00,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275671921] [2021-09-22 14:27:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:00,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,272 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) [2021-09-22 14:27:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:00,330 INFO L93 Difference]: Finished difference Result 1864 states and 5928 transitions. [2021-09-22 14:27:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:00,331 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 [2021-09-22 14:27:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:00,334 INFO L225 Difference]: With dead ends: 1864 [2021-09-22 14:27:00,335 INFO L226 Difference]: Without dead ends: 1100 [2021-09-22 14:27:00,335 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 [2021-09-22 14:27:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-09-22 14:27:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1024. [2021-09-22 14:27:00,354 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) [2021-09-22 14:27:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 2850 transitions. [2021-09-22 14:27:00,357 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 2850 transitions. Word has length 19 [2021-09-22 14:27:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,358 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 2850 transitions. [2021-09-22 14:27:00,358 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) [2021-09-22 14:27:00,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 2850 transitions. [2021-09-22 14:27:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:27:00,360 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,360 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] [2021-09-22 14:27:00,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-09-22 14:27:00,361 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2078759532, now seen corresponding path program 1 times [2021-09-22 14:27:00,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678458333] [2021-09-22 14:27:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678458333] [2021-09-22 14:27:00,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678458333] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:00,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416640669] [2021-09-22 14:27:00,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:00,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:00,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,407 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) [2021-09-22 14:27:00,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:00,426 INFO L93 Difference]: Finished difference Result 910 states and 2472 transitions. [2021-09-22 14:27:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:00,426 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 [2021-09-22 14:27:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:00,429 INFO L225 Difference]: With dead ends: 910 [2021-09-22 14:27:00,429 INFO L226 Difference]: Without dead ends: 910 [2021-09-22 14:27:00,429 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 [2021-09-22 14:27:00,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-09-22 14:27:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 880. [2021-09-22 14:27:00,446 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) [2021-09-22 14:27:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2432 transitions. [2021-09-22 14:27:00,449 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2432 transitions. Word has length 22 [2021-09-22 14:27:00,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,449 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2432 transitions. [2021-09-22 14:27:00,449 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) [2021-09-22 14:27:00,449 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2432 transitions. [2021-09-22 14:27:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:27:00,451 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,451 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] [2021-09-22 14:27:00,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-09-22 14:27:00,452 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1678841626, now seen corresponding path program 1 times [2021-09-22 14:27:00,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010175120] [2021-09-22 14:27:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010175120] [2021-09-22 14:27:00,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010175120] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:27:00,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562924311] [2021-09-22 14:27:00,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:00,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,483 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) [2021-09-22 14:27:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:00,504 INFO L93 Difference]: Finished difference Result 874 states and 2305 transitions. [2021-09-22 14:27:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:00,505 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 [2021-09-22 14:27:00,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:00,507 INFO L225 Difference]: With dead ends: 874 [2021-09-22 14:27:00,507 INFO L226 Difference]: Without dead ends: 874 [2021-09-22 14:27:00,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-09-22 14:27:00,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 844. [2021-09-22 14:27:00,524 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) [2021-09-22 14:27:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2265 transitions. [2021-09-22 14:27:00,526 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2265 transitions. Word has length 22 [2021-09-22 14:27:00,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,526 INFO L470 AbstractCegarLoop]: Abstraction has 844 states and 2265 transitions. [2021-09-22 14:27:00,527 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) [2021-09-22 14:27:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2265 transitions. [2021-09-22 14:27:00,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:27:00,529 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,529 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] [2021-09-22 14:27:00,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-09-22 14:27:00,529 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1678842618, now seen corresponding path program 1 times [2021-09-22 14:27:00,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961582884] [2021-09-22 14:27:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961582884] [2021-09-22 14:27:00,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961582884] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:27:00,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445553147] [2021-09-22 14:27:00,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:27:00,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:27:00,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:27:00,571 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) [2021-09-22 14:27:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:00,654 INFO L93 Difference]: Finished difference Result 850 states and 2156 transitions. [2021-09-22 14:27:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:27:00,654 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 [2021-09-22 14:27:00,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:00,657 INFO L225 Difference]: With dead ends: 850 [2021-09-22 14:27:00,657 INFO L226 Difference]: Without dead ends: 814 [2021-09-22 14:27:00,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:00,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-09-22 14:27:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 716. [2021-09-22 14:27:00,671 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) [2021-09-22 14:27:00,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1900 transitions. [2021-09-22 14:27:00,673 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1900 transitions. Word has length 22 [2021-09-22 14:27:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:00,673 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1900 transitions. [2021-09-22 14:27:00,673 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) [2021-09-22 14:27:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1900 transitions. [2021-09-22 14:27:00,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:00,675 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:00,675 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] [2021-09-22 14:27:00,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-09-22 14:27:00,676 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:00,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:00,676 INFO L82 PathProgramCache]: Analyzing trace with hash -806525173, now seen corresponding path program 1 times [2021-09-22 14:27:00,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:00,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508671022] [2021-09-22 14:27:00,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:00,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:00,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:00,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:00,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508671022] [2021-09-22 14:27:00,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508671022] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:00,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:00,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:00,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797479465] [2021-09-22 14:27:00,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:00,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:00,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:00,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:00,799 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) [2021-09-22 14:27:01,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:01,121 INFO L93 Difference]: Finished difference Result 1028 states and 2728 transitions. [2021-09-22 14:27:01,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-09-22 14:27:01,122 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 [2021-09-22 14:27:01,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:01,125 INFO L225 Difference]: With dead ends: 1028 [2021-09-22 14:27:01,125 INFO L226 Difference]: Without dead ends: 1028 [2021-09-22 14:27:01,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 92.5ms TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-09-22 14:27:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-09-22 14:27:01,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 820. [2021-09-22 14:27:01,142 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) [2021-09-22 14:27:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 2182 transitions. [2021-09-22 14:27:01,144 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 2182 transitions. Word has length 23 [2021-09-22 14:27:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:01,145 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 2182 transitions. [2021-09-22 14:27:01,145 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) [2021-09-22 14:27:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 2182 transitions. [2021-09-22 14:27:01,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:01,147 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:01,148 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] [2021-09-22 14:27:01,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-09-22 14:27:01,148 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:01,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:01,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2107801352, now seen corresponding path program 1 times [2021-09-22 14:27:01,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:01,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396656112] [2021-09-22 14:27:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:01,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:01,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:01,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396656112] [2021-09-22 14:27:01,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396656112] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:01,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:01,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:01,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261600826] [2021-09-22 14:27:01,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:01,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:01,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:01,254 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) [2021-09-22 14:27:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:01,624 INFO L93 Difference]: Finished difference Result 1098 states and 2875 transitions. [2021-09-22 14:27:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-09-22 14:27:01,625 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 [2021-09-22 14:27:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:01,628 INFO L225 Difference]: With dead ends: 1098 [2021-09-22 14:27:01,628 INFO L226 Difference]: Without dead ends: 1098 [2021-09-22 14:27:01,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-09-22 14:27:01,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-09-22 14:27:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 892. [2021-09-22 14:27:01,646 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) [2021-09-22 14:27:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 2378 transitions. [2021-09-22 14:27:01,649 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 2378 transitions. Word has length 23 [2021-09-22 14:27:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:01,649 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 2378 transitions. [2021-09-22 14:27:01,649 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) [2021-09-22 14:27:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2378 transitions. [2021-09-22 14:27:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:01,652 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:01,652 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] [2021-09-22 14:27:01,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-09-22 14:27:01,652 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:01,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1779790679, now seen corresponding path program 2 times [2021-09-22 14:27:01,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:01,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606126594] [2021-09-22 14:27:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:01,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:01,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:01,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606126594] [2021-09-22 14:27:01,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606126594] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:01,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:01,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:01,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917449818] [2021-09-22 14:27:01,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:01,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:01,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:01,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:01,755 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) [2021-09-22 14:27:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:02,069 INFO L93 Difference]: Finished difference Result 1084 states and 2856 transitions. [2021-09-22 14:27:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-09-22 14:27:02,070 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 [2021-09-22 14:27:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:02,072 INFO L225 Difference]: With dead ends: 1084 [2021-09-22 14:27:02,072 INFO L226 Difference]: Without dead ends: 1076 [2021-09-22 14:27:02,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-09-22 14:27:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2021-09-22 14:27:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 884. [2021-09-22 14:27:02,087 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) [2021-09-22 14:27:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2352 transitions. [2021-09-22 14:27:02,089 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2352 transitions. Word has length 23 [2021-09-22 14:27:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:02,089 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2352 transitions. [2021-09-22 14:27:02,089 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) [2021-09-22 14:27:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2352 transitions. [2021-09-22 14:27:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:02,092 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:02,092 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] [2021-09-22 14:27:02,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-09-22 14:27:02,092 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:02,093 INFO L82 PathProgramCache]: Analyzing trace with hash 2076691964, now seen corresponding path program 2 times [2021-09-22 14:27:02,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:02,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830252794] [2021-09-22 14:27:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:02,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:02,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:02,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830252794] [2021-09-22 14:27:02,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830252794] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:02,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:02,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:02,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928647649] [2021-09-22 14:27:02,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:02,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:02,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:02,234 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) [2021-09-22 14:27:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:02,575 INFO L93 Difference]: Finished difference Result 1128 states and 2962 transitions. [2021-09-22 14:27:02,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-09-22 14:27:02,575 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 [2021-09-22 14:27:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:02,578 INFO L225 Difference]: With dead ends: 1128 [2021-09-22 14:27:02,578 INFO L226 Difference]: Without dead ends: 1128 [2021-09-22 14:27:02,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 98.2ms TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-09-22 14:27:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-09-22 14:27:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 798. [2021-09-22 14:27:02,592 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) [2021-09-22 14:27:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 2100 transitions. [2021-09-22 14:27:02,594 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 2100 transitions. Word has length 23 [2021-09-22 14:27:02,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:02,595 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 2100 transitions. [2021-09-22 14:27:02,595 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) [2021-09-22 14:27:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 2100 transitions. [2021-09-22 14:27:02,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:02,597 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:02,597 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] [2021-09-22 14:27:02,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-09-22 14:27:02,597 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:02,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2125960084, now seen corresponding path program 3 times [2021-09-22 14:27:02,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:02,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948752659] [2021-09-22 14:27:02,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:02,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:02,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:02,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948752659] [2021-09-22 14:27:02,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948752659] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:02,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:02,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:02,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856614866] [2021-09-22 14:27:02,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:02,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:02,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:02,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:02,693 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) [2021-09-22 14:27:02,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:02,994 INFO L93 Difference]: Finished difference Result 1066 states and 2808 transitions. [2021-09-22 14:27:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-09-22 14:27:02,994 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 [2021-09-22 14:27:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:02,997 INFO L225 Difference]: With dead ends: 1066 [2021-09-22 14:27:02,997 INFO L226 Difference]: Without dead ends: 1056 [2021-09-22 14:27:02,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 84.1ms TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-09-22 14:27:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-09-22 14:27:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 748. [2021-09-22 14:27:03,011 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) [2021-09-22 14:27:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1983 transitions. [2021-09-22 14:27:03,013 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1983 transitions. Word has length 23 [2021-09-22 14:27:03,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:03,014 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1983 transitions. [2021-09-22 14:27:03,014 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) [2021-09-22 14:27:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1983 transitions. [2021-09-22 14:27:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:03,016 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:03,016 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] [2021-09-22 14:27:03,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-09-22 14:27:03,017 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:03,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1250821905, now seen corresponding path program 1 times [2021-09-22 14:27:03,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:03,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734432322] [2021-09-22 14:27:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:03,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:03,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:03,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734432322] [2021-09-22 14:27:03,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734432322] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:03,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:03,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:03,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678214016] [2021-09-22 14:27:03,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:03,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:03,131 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) [2021-09-22 14:27:03,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:03,323 INFO L93 Difference]: Finished difference Result 836 states and 2205 transitions. [2021-09-22 14:27:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:27:03,324 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 [2021-09-22 14:27:03,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:03,326 INFO L225 Difference]: With dead ends: 836 [2021-09-22 14:27:03,326 INFO L226 Difference]: Without dead ends: 836 [2021-09-22 14:27:03,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 58.2ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-09-22 14:27:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 748. [2021-09-22 14:27:03,337 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) [2021-09-22 14:27:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1983 transitions. [2021-09-22 14:27:03,339 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1983 transitions. Word has length 23 [2021-09-22 14:27:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:03,339 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1983 transitions. [2021-09-22 14:27:03,340 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) [2021-09-22 14:27:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1983 transitions. [2021-09-22 14:27:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:03,342 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:03,342 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] [2021-09-22 14:27:03,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-09-22 14:27:03,342 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:03,343 INFO L82 PathProgramCache]: Analyzing trace with hash 448966935, now seen corresponding path program 2 times [2021-09-22 14:27:03,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:03,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816928419] [2021-09-22 14:27:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:03,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:03,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:03,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816928419] [2021-09-22 14:27:03,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816928419] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:03,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:03,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:03,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377097179] [2021-09-22 14:27:03,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:03,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:03,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:03,450 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) [2021-09-22 14:27:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:03,648 INFO L93 Difference]: Finished difference Result 950 states and 2530 transitions. [2021-09-22 14:27:03,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-09-22 14:27:03,649 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 [2021-09-22 14:27:03,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:03,651 INFO L225 Difference]: With dead ends: 950 [2021-09-22 14:27:03,651 INFO L226 Difference]: Without dead ends: 950 [2021-09-22 14:27:03,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 61.2ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2021-09-22 14:27:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 738. [2021-09-22 14:27:03,662 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) [2021-09-22 14:27:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1956 transitions. [2021-09-22 14:27:03,664 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1956 transitions. Word has length 23 [2021-09-22 14:27:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:03,664 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1956 transitions. [2021-09-22 14:27:03,665 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) [2021-09-22 14:27:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1956 transitions. [2021-09-22 14:27:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-09-22 14:27:03,666 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:03,667 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] [2021-09-22 14:27:03,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-09-22 14:27:03,667 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1701028235, now seen corresponding path program 3 times [2021-09-22 14:27:03,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:03,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132622031] [2021-09-22 14:27:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:03,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:03,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:03,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132622031] [2021-09-22 14:27:03,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132622031] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:03,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:03,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:03,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405239025] [2021-09-22 14:27:03,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:03,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:03,773 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) [2021-09-22 14:27:04,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:04,127 INFO L93 Difference]: Finished difference Result 900 states and 2384 transitions. [2021-09-22 14:27:04,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-09-22 14:27:04,127 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 [2021-09-22 14:27:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:04,130 INFO L225 Difference]: With dead ends: 900 [2021-09-22 14:27:04,130 INFO L226 Difference]: Without dead ends: 900 [2021-09-22 14:27:04,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-09-22 14:27:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-09-22 14:27:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 674. [2021-09-22 14:27:04,142 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) [2021-09-22 14:27:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1784 transitions. [2021-09-22 14:27:04,144 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1784 transitions. Word has length 23 [2021-09-22 14:27:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:04,144 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 1784 transitions. [2021-09-22 14:27:04,144 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) [2021-09-22 14:27:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1784 transitions. [2021-09-22 14:27:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:04,146 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:04,146 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] [2021-09-22 14:27:04,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-09-22 14:27:04,146 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:04,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:04,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1623191798, now seen corresponding path program 1 times [2021-09-22 14:27:04,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:04,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212806819] [2021-09-22 14:27:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:04,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:04,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:04,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:04,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212806819] [2021-09-22 14:27:04,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212806819] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:04,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:04,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:04,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205791170] [2021-09-22 14:27:04,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:04,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:04,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:04,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:04,210 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) [2021-09-22 14:27:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:04,372 INFO L93 Difference]: Finished difference Result 862 states and 2356 transitions. [2021-09-22 14:27:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:04,372 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 [2021-09-22 14:27:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:04,375 INFO L225 Difference]: With dead ends: 862 [2021-09-22 14:27:04,375 INFO L226 Difference]: Without dead ends: 670 [2021-09-22 14:27:04,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-09-22 14:27:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 562. [2021-09-22 14:27:04,384 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) [2021-09-22 14:27:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1482 transitions. [2021-09-22 14:27:04,385 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1482 transitions. Word has length 28 [2021-09-22 14:27:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:04,386 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1482 transitions. [2021-09-22 14:27:04,386 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) [2021-09-22 14:27:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1482 transitions. [2021-09-22 14:27:04,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:04,387 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:04,388 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] [2021-09-22 14:27:04,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-09-22 14:27:04,388 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:04,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:04,388 INFO L82 PathProgramCache]: Analyzing trace with hash -309154427, now seen corresponding path program 1 times [2021-09-22 14:27:04,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:04,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508941938] [2021-09-22 14:27:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:04,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:04,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:04,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508941938] [2021-09-22 14:27:04,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508941938] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:04,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:04,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-09-22 14:27:04,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117087031] [2021-09-22 14:27:04,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-09-22 14:27:04,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:04,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-09-22 14:27:04,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:27:04,461 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) [2021-09-22 14:27:04,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:04,652 INFO L93 Difference]: Finished difference Result 620 states and 1697 transitions. [2021-09-22 14:27:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-09-22 14:27:04,652 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 [2021-09-22 14:27:04,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:04,654 INFO L225 Difference]: With dead ends: 620 [2021-09-22 14:27:04,654 INFO L226 Difference]: Without dead ends: 544 [2021-09-22 14:27:04,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 81.9ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-09-22 14:27:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-09-22 14:27:04,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 506. [2021-09-22 14:27:04,664 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) [2021-09-22 14:27:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1343 transitions. [2021-09-22 14:27:04,666 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1343 transitions. Word has length 28 [2021-09-22 14:27:04,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:04,666 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 1343 transitions. [2021-09-22 14:27:04,666 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) [2021-09-22 14:27:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1343 transitions. [2021-09-22 14:27:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:04,668 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:04,668 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] [2021-09-22 14:27:04,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-09-22 14:27:04,668 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:04,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:04,669 INFO L82 PathProgramCache]: Analyzing trace with hash 980706829, now seen corresponding path program 2 times [2021-09-22 14:27:04,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:04,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866261098] [2021-09-22 14:27:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:04,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:04,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:04,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866261098] [2021-09-22 14:27:04,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866261098] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:04,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:04,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:04,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694361635] [2021-09-22 14:27:04,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:04,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:04,769 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) [2021-09-22 14:27:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:04,907 INFO L93 Difference]: Finished difference Result 698 states and 1923 transitions. [2021-09-22 14:27:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:04,907 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 [2021-09-22 14:27:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:04,909 INFO L225 Difference]: With dead ends: 698 [2021-09-22 14:27:04,909 INFO L226 Difference]: Without dead ends: 488 [2021-09-22 14:27:04,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-09-22 14:27:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 414. [2021-09-22 14:27:04,916 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) [2021-09-22 14:27:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1083 transitions. [2021-09-22 14:27:04,917 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1083 transitions. Word has length 28 [2021-09-22 14:27:04,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:04,918 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1083 transitions. [2021-09-22 14:27:04,918 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) [2021-09-22 14:27:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1083 transitions. [2021-09-22 14:27:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:04,919 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:04,919 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] [2021-09-22 14:27:04,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-09-22 14:27:04,920 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1266110615, now seen corresponding path program 3 times [2021-09-22 14:27:04,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:04,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530842546] [2021-09-22 14:27:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:04,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:04,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:04,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530842546] [2021-09-22 14:27:04,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530842546] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:04,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:04,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:27:04,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74609748] [2021-09-22 14:27:04,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:27:04,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:27:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:27:04,966 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) [2021-09-22 14:27:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,004 INFO L93 Difference]: Finished difference Result 496 states and 1265 transitions. [2021-09-22 14:27:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:27:05,005 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 [2021-09-22 14:27:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,006 INFO L225 Difference]: With dead ends: 496 [2021-09-22 14:27:05,006 INFO L226 Difference]: Without dead ends: 488 [2021-09-22 14:27:05,006 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 [2021-09-22 14:27:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-09-22 14:27:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 414. [2021-09-22 14:27:05,014 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) [2021-09-22 14:27:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1075 transitions. [2021-09-22 14:27:05,015 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1075 transitions. Word has length 28 [2021-09-22 14:27:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,015 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1075 transitions. [2021-09-22 14:27:05,015 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) [2021-09-22 14:27:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1075 transitions. [2021-09-22 14:27:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,017 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,017 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] [2021-09-22 14:27:05,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-09-22 14:27:05,017 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1054074660, now seen corresponding path program 1 times [2021-09-22 14:27:05,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447797901] [2021-09-22 14:27:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447797901] [2021-09-22 14:27:05,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447797901] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-09-22 14:27:05,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198469785] [2021-09-22 14:27:05,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-09-22 14:27:05,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-09-22 14:27:05,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:27:05,102 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) [2021-09-22 14:27:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,254 INFO L93 Difference]: Finished difference Result 470 states and 1207 transitions. [2021-09-22 14:27:05,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:05,255 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 [2021-09-22 14:27:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,256 INFO L225 Difference]: With dead ends: 470 [2021-09-22 14:27:05,256 INFO L226 Difference]: Without dead ends: 398 [2021-09-22 14:27:05,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-09-22 14:27:05,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-09-22 14:27:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-09-22 14:27:05,263 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) [2021-09-22 14:27:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1023 transitions. [2021-09-22 14:27:05,264 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1023 transitions. Word has length 28 [2021-09-22 14:27:05,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,264 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 1023 transitions. [2021-09-22 14:27:05,264 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) [2021-09-22 14:27:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1023 transitions. [2021-09-22 14:27:05,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,265 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,265 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] [2021-09-22 14:27:05,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-09-22 14:27:05,266 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,266 INFO L82 PathProgramCache]: Analyzing trace with hash 783763437, now seen corresponding path program 4 times [2021-09-22 14:27:05,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771404404] [2021-09-22 14:27:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771404404] [2021-09-22 14:27:05,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771404404] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:05,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203730869] [2021-09-22 14:27:05,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:05,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:05,338 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) [2021-09-22 14:27:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,461 INFO L93 Difference]: Finished difference Result 470 states and 1176 transitions. [2021-09-22 14:27:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:05,461 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 [2021-09-22 14:27:05,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,462 INFO L225 Difference]: With dead ends: 470 [2021-09-22 14:27:05,462 INFO L226 Difference]: Without dead ends: 370 [2021-09-22 14:27:05,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:05,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-09-22 14:27:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-09-22 14:27:05,468 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) [2021-09-22 14:27:05,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 916 transitions. [2021-09-22 14:27:05,469 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 916 transitions. Word has length 28 [2021-09-22 14:27:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,470 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 916 transitions. [2021-09-22 14:27:05,470 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) [2021-09-22 14:27:05,470 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 916 transitions. [2021-09-22 14:27:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,471 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,472 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] [2021-09-22 14:27:05,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-09-22 14:27:05,472 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1617191269, now seen corresponding path program 5 times [2021-09-22 14:27:05,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990465739] [2021-09-22 14:27:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990465739] [2021-09-22 14:27:05,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990465739] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:05,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040818494] [2021-09-22 14:27:05,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:05,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:05,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:05,552 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) [2021-09-22 14:27:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,671 INFO L93 Difference]: Finished difference Result 354 states and 883 transitions. [2021-09-22 14:27:05,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-09-22 14:27:05,672 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 [2021-09-22 14:27:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,672 INFO L225 Difference]: With dead ends: 354 [2021-09-22 14:27:05,673 INFO L226 Difference]: Without dead ends: 224 [2021-09-22 14:27:05,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 47.4ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-09-22 14:27:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-09-22 14:27:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 210. [2021-09-22 14:27:05,676 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) [2021-09-22 14:27:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 538 transitions. [2021-09-22 14:27:05,677 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 538 transitions. Word has length 28 [2021-09-22 14:27:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,677 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 538 transitions. [2021-09-22 14:27:05,677 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) [2021-09-22 14:27:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 538 transitions. [2021-09-22 14:27:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,678 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,678 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] [2021-09-22 14:27:05,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-09-22 14:27:05,678 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,678 INFO L82 PathProgramCache]: Analyzing trace with hash -617807064, now seen corresponding path program 2 times [2021-09-22 14:27:05,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32829205] [2021-09-22 14:27:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32829205] [2021-09-22 14:27:05,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32829205] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:27:05,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038765135] [2021-09-22 14:27:05,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:27:05,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:27:05,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:27:05,712 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) [2021-09-22 14:27:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,741 INFO L93 Difference]: Finished difference Result 278 states and 692 transitions. [2021-09-22 14:27:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:27:05,742 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 [2021-09-22 14:27:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,743 INFO L225 Difference]: With dead ends: 278 [2021-09-22 14:27:05,743 INFO L226 Difference]: Without dead ends: 270 [2021-09-22 14:27:05,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:27:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-09-22 14:27:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 210. [2021-09-22 14:27:05,746 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) [2021-09-22 14:27:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 530 transitions. [2021-09-22 14:27:05,747 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 530 transitions. Word has length 28 [2021-09-22 14:27:05,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,747 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 530 transitions. [2021-09-22 14:27:05,747 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) [2021-09-22 14:27:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 530 transitions. [2021-09-22 14:27:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,748 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,748 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] [2021-09-22 14:27:05,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-09-22 14:27:05,748 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1461165240, now seen corresponding path program 1 times [2021-09-22 14:27:05,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170661433] [2021-09-22 14:27:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170661433] [2021-09-22 14:27:05,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170661433] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-09-22 14:27:05,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179578938] [2021-09-22 14:27:05,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-09-22 14:27:05,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-09-22 14:27:05,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:27:05,811 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) [2021-09-22 14:27:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:05,926 INFO L93 Difference]: Finished difference Result 258 states and 648 transitions. [2021-09-22 14:27:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:05,926 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 [2021-09-22 14:27:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:05,927 INFO L225 Difference]: With dead ends: 258 [2021-09-22 14:27:05,927 INFO L226 Difference]: Without dead ends: 194 [2021-09-22 14:27:05,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 48.6ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-09-22 14:27:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-09-22 14:27:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-09-22 14:27:05,930 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) [2021-09-22 14:27:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 478 transitions. [2021-09-22 14:27:05,930 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 478 transitions. Word has length 28 [2021-09-22 14:27:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:05,931 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 478 transitions. [2021-09-22 14:27:05,931 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) [2021-09-22 14:27:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 478 transitions. [2021-09-22 14:27:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:05,932 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:05,932 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] [2021-09-22 14:27:05,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-09-22 14:27:05,932 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:05,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1064458348, now seen corresponding path program 3 times [2021-09-22 14:27:05,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:05,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704061768] [2021-09-22 14:27:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:05,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:05,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:05,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704061768] [2021-09-22 14:27:05,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704061768] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:05,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:05,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:05,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065477838] [2021-09-22 14:27:05,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:05,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:05,991 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) [2021-09-22 14:27:06,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:06,069 INFO L93 Difference]: Finished difference Result 256 states and 613 transitions. [2021-09-22 14:27:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-09-22 14:27:06,070 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 [2021-09-22 14:27:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:06,070 INFO L225 Difference]: With dead ends: 256 [2021-09-22 14:27:06,071 INFO L226 Difference]: Without dead ends: 158 [2021-09-22 14:27:06,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.1ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-09-22 14:27:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-09-22 14:27:06,073 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) [2021-09-22 14:27:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 345 transitions. [2021-09-22 14:27:06,074 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 345 transitions. Word has length 28 [2021-09-22 14:27:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 345 transitions. [2021-09-22 14:27:06,074 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) [2021-09-22 14:27:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 345 transitions. [2021-09-22 14:27:06,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-09-22 14:27:06,075 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:06,075 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] [2021-09-22 14:27:06,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-09-22 14:27:06,075 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-09-22 14:27:06,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:06,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1088797110, now seen corresponding path program 4 times [2021-09-22 14:27:06,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:06,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649036063] [2021-09-22 14:27:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:06,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:06,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:06,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649036063] [2021-09-22 14:27:06,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649036063] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:06,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:06,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-09-22 14:27:06,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79825565] [2021-09-22 14:27:06,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-09-22 14:27:06,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-09-22 14:27:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:27:06,138 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) [2021-09-22 14:27:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:06,215 INFO L93 Difference]: Finished difference Result 148 states and 326 transitions. [2021-09-22 14:27:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:27:06,215 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 [2021-09-22 14:27:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:06,216 INFO L225 Difference]: With dead ends: 148 [2021-09-22 14:27:06,216 INFO L226 Difference]: Without dead ends: 0 [2021-09-22 14:27:06,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 41.7ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-09-22 14:27:06,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-09-22 14:27:06,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-09-22 14:27:06,217 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) [2021-09-22 14:27:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-09-22 14:27:06,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-09-22 14:27:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:06,217 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-09-22 14:27:06,217 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) [2021-09-22 14:27:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-09-22 14:27:06,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-22 14:27:06,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:06,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:06,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:27:06,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:27:06,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-09-22 14:27:06,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:06,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:06,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-09-22 14:27:06,225 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:27:06,225 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:27:06,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:27:06 BasicIcfg [2021-09-22 14:27:06,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:27:06,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:27:06,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:27:06,227 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:27:06,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:26:50" (3/4) ... [2021-09-22 14:27:06,229 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-09-22 14:27:06,233 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader1 [2021-09-22 14:27:06,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader2 [2021-09-22 14:27:06,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_updater [2021-09-22 14:27:06,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-09-22 14:27:06,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-09-22 14:27:06,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-09-22 14:27:06,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-09-22 14:27:06,261 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:27:06,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:27:06,262 INFO L168 Benchmark]: Toolchain (without parser) took 17657.54 ms. Allocated memory was 50.3 MB in the beginning and 746.6 MB in the end (delta: 696.3 MB). Free memory was 26.1 MB in the beginning and 655.6 MB in the end (delta: -629.5 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,262 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:27:06,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.79 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 35.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.79 ms. Allocated memory is still 62.9 MB. Free memory was 35.7 MB in the beginning and 33.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,263 INFO L168 Benchmark]: Boogie Preprocessor took 47.09 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 31.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,264 INFO L168 Benchmark]: RCFGBuilder took 1016.37 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 50.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,264 INFO L168 Benchmark]: TraceAbstraction took 15888.03 ms. Allocated memory was 75.5 MB in the beginning and 746.6 MB in the end (delta: 671.1 MB). Free memory was 50.2 MB in the beginning and 658.8 MB in the end (delta: -608.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,264 INFO L168 Benchmark]: Witness Printer took 33.87 ms. Allocated memory is still 746.6 MB. Free memory was 658.8 MB in the beginning and 655.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:06,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 582.79 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 35.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.79 ms. Allocated memory is still 62.9 MB. Free memory was 35.7 MB in the beginning and 33.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.09 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 31.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1016.37 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 50.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15888.03 ms. Allocated memory was 75.5 MB in the beginning and 746.6 MB in the end (delta: 671.1 MB). Free memory was 50.2 MB in the beginning and 658.8 MB in the end (delta: -608.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. * Witness Printer took 33.87 ms. Allocated memory is still 746.6 MB. Free memory was 658.8 MB in the beginning and 655.6 MB in the end (delta: 3.1 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: 5802.4ms, 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: 346, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 252, negative conditional: 0, negative unconditional: 252, 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: 15711.1ms, OverallIterations: 31, TraceHistogramMax: 1, EmptinessCheckTime: 150.4ms, AutomataDifference: 5273.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5989.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2284 SDtfs, 2795 SDslu, 5233 SDs, 0 SdLazy, 4979 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2718.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1346.7ms 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: 1601.7ms AutomataMinimizationTime, 31 MinimizatonAttempts, 4370 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 71.1ms SsaConstructionTime, 396.4ms SatisfiabilityAnalysisTime, 1827.7ms 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! [2021-09-22 14:27:06,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...