./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/qrcu-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer --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 5673895c5fc66df893e7d6b119c1b0d457c2bfab ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:27,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:27,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:27,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:27,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:27,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:27,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:27,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:27,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:27,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:27,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:27,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:27,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:27,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:27,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:27,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:27,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:27,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:27,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:27,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:27,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:27,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:27,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:27,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:27,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:27,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:27,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:27,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:27,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:27,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:27,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:27,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:27,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:27,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:27,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:27,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:27,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:27,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:27,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:27,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:27,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:27,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:27,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:27,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:27,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:27,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:27,932 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:27,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:27,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:27,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:27,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:27,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:27,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:27,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:27,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:27,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:27,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:27,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:27,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:27,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:27,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:27,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:27,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:27,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:27,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:27,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:27,937 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:/tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5673895c5fc66df893e7d6b119c1b0d457c2bfab [2020-11-28 02:56:28,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:28,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:28,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:28,321 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:28,322 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:28,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/qrcu-2.i [2020-11-28 02:56:28,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/data/600421604/a26816291f42423ca30465d8c50a2ada/FLAG86126875b [2020-11-28 02:56:28,936 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:28,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/sv-benchmarks/c/pthread-atomic/qrcu-2.i [2020-11-28 02:56:28,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/data/600421604/a26816291f42423ca30465d8c50a2ada/FLAG86126875b [2020-11-28 02:56:29,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/data/600421604/a26816291f42423ca30465d8c50a2ada [2020-11-28 02:56:29,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:29,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:29,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:29,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:29,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:29,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:29,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f36b3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29, skipping insertion in model container [2020-11-28 02:56:29,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:29,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:29,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:29,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:29,822 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:29,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:29,988 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:29,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29 WrapperNode [2020-11-28 02:56:29,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:29,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:29,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:29,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:29,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:30,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:30,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:30,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:30,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:30,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:30,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-11-28 02:56:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-11-28 02:56:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-11-28 02:56:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-11-28 02:56:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:56:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:56:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-11-28 02:56:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-11-28 02:56:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-28 02:56:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:56:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:30,184 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 02:56:31,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:31,533 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:56:31,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:31 BoogieIcfgContainer [2020-11-28 02:56:31,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:31,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:31,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:31,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:31,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:29" (1/3) ... [2020-11-28 02:56:31,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea7b49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:31, skipping insertion in model container [2020-11-28 02:56:31,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (2/3) ... [2020-11-28 02:56:31,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea7b49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:31, skipping insertion in model container [2020-11-28 02:56:31,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:31" (3/3) ... [2020-11-28 02:56:31,544 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2020-11-28 02:56:31,555 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 02:56:31,556 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:31,560 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 02:56:31,561 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 02:56:31,607 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,607 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,607 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,607 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,607 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,608 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,609 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,609 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,610 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,610 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,610 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,610 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,611 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,612 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,612 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,612 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,612 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,613 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,613 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,613 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,613 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,613 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,614 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,614 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,614 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,615 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,615 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,615 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,615 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,616 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,616 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,616 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,616 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,616 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,617 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,617 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,617 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,618 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,618 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,618 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,618 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,618 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,619 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,619 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,619 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,619 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,619 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,620 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,620 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,620 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,620 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,621 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,622 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,622 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,623 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,624 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,624 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,624 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,624 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,624 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,625 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,625 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,625 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,625 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,626 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,626 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,626 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,626 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,626 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,627 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,627 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,627 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,627 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,627 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,628 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,628 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,628 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,628 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,628 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,629 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,629 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,629 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,629 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,629 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,630 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,630 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,630 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,630 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,631 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,631 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,631 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,631 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,631 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,632 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,632 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,632 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,632 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,632 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,633 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,633 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,633 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,633 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,634 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,634 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,634 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,634 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,634 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,635 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,636 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,636 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,636 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,636 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,637 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,637 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,637 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,637 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,637 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,638 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,638 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,638 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,638 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,639 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,640 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,640 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,640 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,640 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,640 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,641 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,641 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,641 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,641 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,641 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,642 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,642 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,642 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,642 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,642 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,643 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,643 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,643 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,643 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,644 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,644 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,644 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,644 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,644 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,646 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,647 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,647 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,647 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,647 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,648 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,648 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,648 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,648 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,648 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,649 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,650 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,650 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,658 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,659 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,659 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,660 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,660 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,661 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,661 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,661 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,661 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,662 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,664 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,665 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,666 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,666 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,670 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~readerstart2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:56:31,682 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-11-28 02:56:31,719 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-28 02:56:31,740 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:31,740 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:31,740 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:31,740 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:31,740 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:31,741 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:31,741 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:31,741 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:31,755 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 02:56:31,757 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 171 transitions, 384 flow [2020-11-28 02:56:31,760 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 171 transitions, 384 flow [2020-11-28 02:56:31,762 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 157 places, 171 transitions, 384 flow [2020-11-28 02:56:31,838 INFO L129 PetriNetUnfolder]: 23/179 cut-off events. [2020-11-28 02:56:31,839 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-11-28 02:56:31,847 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 23/179 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 439 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2020-11-28 02:56:31,859 INFO L116 LiptonReduction]: Number of co-enabled transitions 9672 [2020-11-28 02:56:31,917 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-28 02:56:31,918 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:31,937 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-28 02:56:31,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:35,633 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-28 02:56:35,870 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 02:56:36,688 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-11-28 02:56:36,969 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-11-28 02:56:37,129 INFO L131 LiptonReduction]: Checked pairs total: 23118 [2020-11-28 02:56:37,129 INFO L133 LiptonReduction]: Total number of compositions: 121 [2020-11-28 02:56:37,133 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 75 transitions, 192 flow [2020-11-28 02:56:37,541 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4506 states. [2020-11-28 02:56:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states. [2020-11-28 02:56:37,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 02:56:37,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1175793275, now seen corresponding path program 1 times [2020-11-28 02:56:37,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221256122] [2020-11-28 02:56:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221256122] [2020-11-28 02:56:37,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260102904] [2020-11-28 02:56:37,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,879 INFO L87 Difference]: Start difference. First operand 4506 states. Second operand 3 states. [2020-11-28 02:56:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,030 INFO L93 Difference]: Finished difference Result 5644 states and 21035 transitions. [2020-11-28 02:56:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 02:56:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,100 INFO L225 Difference]: With dead ends: 5644 [2020-11-28 02:56:38,101 INFO L226 Difference]: Without dead ends: 4800 [2020-11-28 02:56:38,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2020-11-28 02:56:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4263. [2020-11-28 02:56:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4263 states. [2020-11-28 02:56:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 16535 transitions. [2020-11-28 02:56:38,475 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 16535 transitions. Word has length 12 [2020-11-28 02:56:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,476 INFO L481 AbstractCegarLoop]: Abstraction has 4263 states and 16535 transitions. [2020-11-28 02:56:38,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 16535 transitions. [2020-11-28 02:56:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:38,480 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:38,481 INFO L429 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2084984313, now seen corresponding path program 1 times [2020-11-28 02:56:38,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954598006] [2020-11-28 02:56:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:38,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954598006] [2020-11-28 02:56:38,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 02:56:38,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189704257] [2020-11-28 02:56:38,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,685 INFO L87 Difference]: Start difference. First operand 4263 states and 16535 transitions. Second operand 3 states. [2020-11-28 02:56:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,779 INFO L93 Difference]: Finished difference Result 4168 states and 16162 transitions. [2020-11-28 02:56:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 02:56:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,826 INFO L225 Difference]: With dead ends: 4168 [2020-11-28 02:56:38,826 INFO L226 Difference]: Without dead ends: 4168 [2020-11-28 02:56:38,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2020-11-28 02:56:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 4168. [2020-11-28 02:56:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4168 states. [2020-11-28 02:56:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4168 states to 4168 states and 16162 transitions. [2020-11-28 02:56:39,120 INFO L78 Accepts]: Start accepts. Automaton has 4168 states and 16162 transitions. Word has length 13 [2020-11-28 02:56:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,121 INFO L481 AbstractCegarLoop]: Abstraction has 4168 states and 16162 transitions. [2020-11-28 02:56:39,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4168 states and 16162 transitions. [2020-11-28 02:56:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:39,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:39,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:39,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2084984419, now seen corresponding path program 1 times [2020-11-28 02:56:39,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063057973] [2020-11-28 02:56:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:39,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063057973] [2020-11-28 02:56:39,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 02:56:39,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738484895] [2020-11-28 02:56:39,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:39,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:39,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:39,223 INFO L87 Difference]: Start difference. First operand 4168 states and 16162 transitions. Second operand 3 states. [2020-11-28 02:56:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,305 INFO L93 Difference]: Finished difference Result 4073 states and 15789 transitions. [2020-11-28 02:56:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:39,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 02:56:39,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,351 INFO L225 Difference]: With dead ends: 4073 [2020-11-28 02:56:39,351 INFO L226 Difference]: Without dead ends: 4073 [2020-11-28 02:56:39,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2020-11-28 02:56:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4073. [2020-11-28 02:56:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-11-28 02:56:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 15789 transitions. [2020-11-28 02:56:39,630 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 15789 transitions. Word has length 13 [2020-11-28 02:56:39,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:39,630 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 15789 transitions. [2020-11-28 02:56:39,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 15789 transitions. [2020-11-28 02:56:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:56:39,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:39,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:39,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:39,639 INFO L429 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:39,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1205839804, now seen corresponding path program 1 times [2020-11-28 02:56:39,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:39,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945779009] [2020-11-28 02:56:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:39,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945779009] [2020-11-28 02:56:39,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:39,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:39,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213713619] [2020-11-28 02:56:39,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:39,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:39,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:39,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:39,750 INFO L87 Difference]: Start difference. First operand 4073 states and 15789 transitions. Second operand 3 states. [2020-11-28 02:56:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:39,894 INFO L93 Difference]: Finished difference Result 4227 states and 15844 transitions. [2020-11-28 02:56:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:39,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 02:56:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:39,939 INFO L225 Difference]: With dead ends: 4227 [2020-11-28 02:56:39,939 INFO L226 Difference]: Without dead ends: 4225 [2020-11-28 02:56:39,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4225 states. [2020-11-28 02:56:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4225 to 4159. [2020-11-28 02:56:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4159 states. [2020-11-28 02:56:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 15640 transitions. [2020-11-28 02:56:40,231 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 15640 transitions. Word has length 17 [2020-11-28 02:56:40,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:40,232 INFO L481 AbstractCegarLoop]: Abstraction has 4159 states and 15640 transitions. [2020-11-28 02:56:40,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 15640 transitions. [2020-11-28 02:56:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:56:40,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:40,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:40,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:40,242 INFO L429 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:40,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1205839804, now seen corresponding path program 1 times [2020-11-28 02:56:40,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:40,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732645673] [2020-11-28 02:56:40,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:40,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732645673] [2020-11-28 02:56:40,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:40,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:40,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109658215] [2020-11-28 02:56:40,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:40,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:40,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:40,369 INFO L87 Difference]: Start difference. First operand 4159 states and 15640 transitions. Second operand 6 states. [2020-11-28 02:56:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:40,720 INFO L93 Difference]: Finished difference Result 5138 states and 18867 transitions. [2020-11-28 02:56:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:56:40,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 02:56:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:40,747 INFO L225 Difference]: With dead ends: 5138 [2020-11-28 02:56:40,747 INFO L226 Difference]: Without dead ends: 5138 [2020-11-28 02:56:40,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:56:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2020-11-28 02:56:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 4570. [2020-11-28 02:56:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4570 states. [2020-11-28 02:56:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4570 states to 4570 states and 17093 transitions. [2020-11-28 02:56:41,017 INFO L78 Accepts]: Start accepts. Automaton has 4570 states and 17093 transitions. Word has length 17 [2020-11-28 02:56:41,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:41,018 INFO L481 AbstractCegarLoop]: Abstraction has 4570 states and 17093 transitions. [2020-11-28 02:56:41,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:41,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4570 states and 17093 transitions. [2020-11-28 02:56:41,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:56:41,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:41,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:41,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:41,027 INFO L429 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:41,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:41,028 INFO L82 PathProgramCache]: Analyzing trace with hash -336568188, now seen corresponding path program 2 times [2020-11-28 02:56:41,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:41,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678401553] [2020-11-28 02:56:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:41,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:41,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:41,139 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:41,141 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:41,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:56:41,164 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-11-28 02:56:41,165 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-11-28 02:56:41,166 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-11-28 02:56:41,166 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-11-28 02:56:41,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:41 BasicIcfg [2020-11-28 02:56:41,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:41,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:41,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:41,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:41,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:31" (3/4) ... [2020-11-28 02:56:41,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:41,239 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-11-28 02:56:41,240 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-11-28 02:56:41,240 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-11-28 02:56:41,240 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-11-28 02:56:41,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_88ca637d-5956-45c9-8630-fa6247884809/bin/uautomizer/witness.graphml [2020-11-28 02:56:41,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:41,302 INFO L168 Benchmark]: Toolchain (without parser) took 12039.81 ms. Allocated memory was 81.8 MB in the beginning and 360.7 MB in the end (delta: 278.9 MB). Free memory was 43.5 MB in the beginning and 125.1 MB in the end (delta: -81.6 MB). Peak memory consumption was 199.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,302 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:41,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.74 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 43.3 MB in the beginning and 64.8 MB in the end (delta: -21.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 109.1 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,304 INFO L168 Benchmark]: Boogie Preprocessor took 37.99 ms. Allocated memory is still 109.1 MB. Free memory was 62.0 MB in the beginning and 60.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,305 INFO L168 Benchmark]: RCFGBuilder took 1447.91 ms. Allocated memory is still 109.1 MB. Free memory was 60.0 MB in the beginning and 55.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,305 INFO L168 Benchmark]: TraceAbstraction took 9688.51 ms. Allocated memory was 109.1 MB in the beginning and 360.7 MB in the end (delta: 251.7 MB). Free memory was 55.9 MB in the beginning and 133.5 MB in the end (delta: -77.6 MB). Peak memory consumption was 172.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,316 INFO L168 Benchmark]: Witness Printer took 75.18 ms. Allocated memory is still 360.7 MB. Free memory was 133.5 MB in the beginning and 125.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:41,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 715.74 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 43.3 MB in the beginning and 64.8 MB in the end (delta: -21.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 109.1 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.99 ms. Allocated memory is still 109.1 MB. Free memory was 62.0 MB in the beginning and 60.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1447.91 ms. Allocated memory is still 109.1 MB. Free memory was 60.0 MB in the beginning and 55.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9688.51 ms. Allocated memory was 109.1 MB in the beginning and 360.7 MB in the end (delta: 251.7 MB). Free memory was 55.9 MB in the beginning and 133.5 MB in the end (delta: -77.6 MB). Peak memory consumption was 172.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.18 ms. Allocated memory is still 360.7 MB. Free memory was 133.5 MB in the beginning and 125.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 6405 VarBasedMoverChecksPositive, 128 VarBasedMoverChecksNegative, 30 SemBasedMoverChecksPositive, 98 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.3s, 906 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.3s, 157 PlacesBefore, 65 PlacesAfterwards, 171 TransitionsBefore, 75 TransitionsAfterwards, 9672 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 121 TotalNumberOfCompositions, 23118 MoverChecksTotal - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L689] 0 int idx=0; [L690] 0 int ctr1=1, ctr2=0; [L691] 0 int readerprogress1=0, readerprogress2=0; [L692] 0 pthread_mutex_t mutex; [L782] 0 pthread_t t1, t2, t3; [L784] FCALL, FORK 0 pthread_create(&t1, 0, qrcu_reader1, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L785] FCALL, FORK 0 pthread_create(&t2, 0, qrcu_reader2, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L724] 1 int myidx; VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L725] COND TRUE 1 1 [L726] 1 myidx = idx [L727] COND TRUE 1 __VERIFIER_nondet_int() [L786] FCALL, FORK 0 pthread_create(&t3, 0, qrcu_updater, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L762] 3 int i; [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); [L764] 3 int sum; [L765] CALL 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L706] 3 readerstart1 = readerprogress1 [L707] 3 readerstart2 = readerprogress2 [L765] RET 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L766] COND FALSE 3 !(__VERIFIER_nondet_int()) [L766] 3 sum = ctr2 VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L766] 3 sum = sum + ctr1 VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L767] COND TRUE 3 sum <= 1 [L767] COND TRUE 3 __VERIFIER_nondet_int() [L767] 3 sum = ctr1 VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L767] 3 sum = sum + ctr2 VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L769] COND FALSE 3 !(sum > 1) VAL [ctr1=1, ctr2=0, idx=0, mutex={10:0}, readerprogress1=0, readerprogress2=0] [L728] CALL 1 __VERIFIER_atomic_use1(myidx) [L694] CALL 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L695] 1 ctr1++ [L728] RET 1 __VERIFIER_atomic_use1(myidx) [L737] 1 readerprogress1 = 1 VAL [ctr1=2, ctr2=0, idx=0, mutex={10:0}, readerprogress1=1, readerprogress2=0] [L777] CALL 3 __VERIFIER_atomic_check_progress1(readerstart1) [L710] COND TRUE 3 __VERIFIER_nondet_int() [L711] CALL 3 assume_abort_if_not(readerstart1 == 1 && readerprogress1 == 1) [L3] COND FALSE 3 !(!cond) [L711] RET 3 assume_abort_if_not(readerstart1 == 1 && readerprogress1 == 1) [L712] COND TRUE 3 !(0) [L712] CALL 3 reach_error() [L16] COND FALSE 3 !(0) [L16] 3 __assert_fail ("0", "qrcu-2.c", 7, __extension__ __PRETTY_FUNCTION__) VAL [ctr1=2, ctr2=0, idx=0, mutex={10:0}, readerprogress1=1, readerprogress2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 148 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 395 SDtfs, 304 SDslu, 409 SDs, 0 SdLazy, 211 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4570occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1171 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...