./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/qrcu-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/qrcu-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3655f01df3eccc3acdb69c97e41dec3a3ff24ca3333b88921cb12b5b6c342936 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:08:29,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:08:29,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:08:29,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:08:29,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:08:29,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:08:29,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:08:29,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:08:29,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:08:29,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:08:29,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:08:29,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:08:29,525 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:08:29,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:08:29,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:08:29,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:08:29,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:08:29,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:08:29,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:08:29,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:08:29,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:08:29,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:08:29,530 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:08:29,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:08:29,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:08:29,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:08:29,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:08:29,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:08:29,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:08:29,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:08:29,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:08:29,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:08:29,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:08:29,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:08:29,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:08:29,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:08:29,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:08:29,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:08:29,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:08:29,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:08:29,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:08:29,536 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3655f01df3eccc3acdb69c97e41dec3a3ff24ca3333b88921cb12b5b6c342936 [2024-11-12 12:08:29,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:08:29,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:08:29,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:08:29,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:08:29,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:08:29,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2024-11-12 12:08:30,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:08:31,196 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:08:31,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2024-11-12 12:08:31,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fe90846/40e0591ec176417a88595fa95edc4568/FLAG9a7734337 [2024-11-12 12:08:31,226 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fe90846/40e0591ec176417a88595fa95edc4568 [2024-11-12 12:08:31,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:08:31,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:08:31,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:08:31,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:08:31,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:08:31,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed77ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31, skipping insertion in model container [2024-11-12 12:08:31,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:08:31,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:08:31,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:08:31,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:08:31,708 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:08:31,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31 WrapperNode [2024-11-12 12:08:31,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:08:31,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:08:31,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:08:31,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:08:31,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,771 INFO L138 Inliner]: procedures = 178, calls = 42, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 454 [2024-11-12 12:08:31,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:08:31,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:08:31,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:08:31,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:08:31,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:08:31,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:08:31,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:08:31,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:08:31,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (1/1) ... [2024-11-12 12:08:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:08:31,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:08:31,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:08:31,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:08:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2024-11-12 12:08:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2024-11-12 12:08:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2024-11-12 12:08:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2024-11-12 12:08:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:08:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:08:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2024-11-12 12:08:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2024-11-12 12:08:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:08:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:08:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:08:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:08:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:08:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:08:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:08:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:08:31,896 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:08:32,024 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:08:32,026 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:08:32,514 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:08:32,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:08:32,747 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:08:32,747 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-12 12:08:32,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:32 BoogieIcfgContainer [2024-11-12 12:08:32,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:08:32,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:08:32,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:08:32,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:08:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:31" (1/3) ... [2024-11-12 12:08:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74105aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:32, skipping insertion in model container [2024-11-12 12:08:32,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:31" (2/3) ... [2024-11-12 12:08:32,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74105aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:32, skipping insertion in model container [2024-11-12 12:08:32,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:32" (3/3) ... [2024-11-12 12:08:32,755 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2024-11-12 12:08:32,768 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:08:32,769 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-11-12 12:08:32,769 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:08:32,909 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:08:32,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 314 transitions, 649 flow [2024-11-12 12:08:33,057 INFO L124 PetriNetUnfolderBase]: 18/311 cut-off events. [2024-11-12 12:08:33,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 12:08:33,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 311 events. 18/311 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1018 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 280. Up to 4 conditions per place. [2024-11-12 12:08:33,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 314 transitions, 649 flow [2024-11-12 12:08:33,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 298 places, 306 transitions, 627 flow [2024-11-12 12:08:33,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:08:33,092 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e9450c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:08:33,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2024-11-12 12:08:33,099 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:08:33,099 INFO L124 PetriNetUnfolderBase]: 1/40 cut-off events. [2024-11-12 12:08:33,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:08:33,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:33,100 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:33,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:33,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:33,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1280572813, now seen corresponding path program 1 times [2024-11-12 12:08:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:33,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272240509] [2024-11-12 12:08:33,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:33,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:33,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272240509] [2024-11-12 12:08:33,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272240509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:33,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:33,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726706399] [2024-11-12 12:08:33,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:33,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:33,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:33,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 314 [2024-11-12 12:08:33,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 306 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:33,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:33,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 314 [2024-11-12 12:08:33,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:34,178 INFO L124 PetriNetUnfolderBase]: 1313/6588 cut-off events. [2024-11-12 12:08:34,179 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-11-12 12:08:34,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8464 conditions, 6588 events. 1313/6588 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 66900 event pairs, 374 based on Foata normal form. 400/5819 useless extension candidates. Maximal degree in co-relation 8219. Up to 1529 conditions per place. [2024-11-12 12:08:34,234 INFO L140 encePairwiseOnDemand]: 270/314 looper letters, 40 selfloop transitions, 8 changer transitions 0/292 dead transitions. [2024-11-12 12:08:34,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 292 transitions, 707 flow [2024-11-12 12:08:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2024-11-12 12:08:34,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9203821656050956 [2024-11-12 12:08:34,253 INFO L175 Difference]: Start difference. First operand has 298 places, 306 transitions, 627 flow. Second operand 3 states and 867 transitions. [2024-11-12 12:08:34,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 292 transitions, 707 flow [2024-11-12 12:08:34,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 292 transitions, 691 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:08:34,264 INFO L231 Difference]: Finished difference. Result has 269 places, 278 transitions, 610 flow [2024-11-12 12:08:34,267 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=610, PETRI_PLACES=269, PETRI_TRANSITIONS=278} [2024-11-12 12:08:34,270 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -29 predicate places. [2024-11-12 12:08:34,270 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 278 transitions, 610 flow [2024-11-12 12:08:34,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:34,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:34,272 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:08:34,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:34,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:34,274 INFO L85 PathProgramCache]: Analyzing trace with hash 647123907, now seen corresponding path program 1 times [2024-11-12 12:08:34,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:34,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425411061] [2024-11-12 12:08:34,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:34,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:34,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425411061] [2024-11-12 12:08:34,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425411061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:34,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:34,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864333185] [2024-11-12 12:08:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:34,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:34,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:34,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 314 [2024-11-12 12:08:34,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 278 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:34,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:34,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 314 [2024-11-12 12:08:34,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:35,089 INFO L124 PetriNetUnfolderBase]: 1267/6681 cut-off events. [2024-11-12 12:08:35,089 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-12 12:08:35,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8792 conditions, 6681 events. 1267/6681 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 70289 event pairs, 474 based on Foata normal form. 0/5542 useless extension candidates. Maximal degree in co-relation 4069. Up to 1264 conditions per place. [2024-11-12 12:08:35,138 INFO L140 encePairwiseOnDemand]: 309/314 looper letters, 30 selfloop transitions, 4 changer transitions 0/290 dead transitions. [2024-11-12 12:08:35,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 290 transitions, 705 flow [2024-11-12 12:08:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2024-11-12 12:08:35,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.861995753715499 [2024-11-12 12:08:35,140 INFO L175 Difference]: Start difference. First operand has 269 places, 278 transitions, 610 flow. Second operand 3 states and 812 transitions. [2024-11-12 12:08:35,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 290 transitions, 705 flow [2024-11-12 12:08:35,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 290 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:35,147 INFO L231 Difference]: Finished difference. Result has 271 places, 281 transitions, 624 flow [2024-11-12 12:08:35,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=271, PETRI_TRANSITIONS=281} [2024-11-12 12:08:35,149 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -27 predicate places. [2024-11-12 12:08:35,149 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 281 transitions, 624 flow [2024-11-12 12:08:35,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:35,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:35,149 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:35,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:08:35,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:35,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1677518791, now seen corresponding path program 1 times [2024-11-12 12:08:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:35,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121011354] [2024-11-12 12:08:35,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:35,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121011354] [2024-11-12 12:08:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121011354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:35,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:35,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:35,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266352559] [2024-11-12 12:08:35,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:35,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:35,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:35,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:35,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 314 [2024-11-12 12:08:35,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 281 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:35,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:35,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 314 [2024-11-12 12:08:35,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:36,071 INFO L124 PetriNetUnfolderBase]: 1413/8166 cut-off events. [2024-11-12 12:08:36,072 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-12 12:08:36,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10551 conditions, 8166 events. 1413/8166 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 91501 event pairs, 523 based on Foata normal form. 0/6716 useless extension candidates. Maximal degree in co-relation 3606. Up to 1317 conditions per place. [2024-11-12 12:08:36,135 INFO L140 encePairwiseOnDemand]: 309/314 looper letters, 31 selfloop transitions, 4 changer transitions 0/293 dead transitions. [2024-11-12 12:08:36,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 293 transitions, 723 flow [2024-11-12 12:08:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2024-11-12 12:08:36,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.861995753715499 [2024-11-12 12:08:36,137 INFO L175 Difference]: Start difference. First operand has 271 places, 281 transitions, 624 flow. Second operand 3 states and 812 transitions. [2024-11-12 12:08:36,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 293 transitions, 723 flow [2024-11-12 12:08:36,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 293 transitions, 715 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:36,145 INFO L231 Difference]: Finished difference. Result has 273 places, 284 transitions, 648 flow [2024-11-12 12:08:36,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=273, PETRI_TRANSITIONS=284} [2024-11-12 12:08:36,147 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -25 predicate places. [2024-11-12 12:08:36,147 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 284 transitions, 648 flow [2024-11-12 12:08:36,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:36,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:36,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:36,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:08:36,148 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:36,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash -501912605, now seen corresponding path program 1 times [2024-11-12 12:08:36,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:36,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089311949] [2024-11-12 12:08:36,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:36,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:36,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089311949] [2024-11-12 12:08:36,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089311949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:36,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:36,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:36,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536507247] [2024-11-12 12:08:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:36,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:36,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:36,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:36,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:36,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 314 [2024-11-12 12:08:36,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 284 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:36,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:36,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 314 [2024-11-12 12:08:36,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:37,259 INFO L124 PetriNetUnfolderBase]: 1902/12329 cut-off events. [2024-11-12 12:08:37,259 INFO L125 PetriNetUnfolderBase]: For 464/482 co-relation queries the response was YES. [2024-11-12 12:08:37,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15803 conditions, 12329 events. 1902/12329 cut-off events. For 464/482 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 152374 event pairs, 716 based on Foata normal form. 0/10093 useless extension candidates. Maximal degree in co-relation 9856. Up to 1888 conditions per place. [2024-11-12 12:08:37,362 INFO L140 encePairwiseOnDemand]: 309/314 looper letters, 32 selfloop transitions, 6 changer transitions 0/298 dead transitions. [2024-11-12 12:08:37,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 298 transitions, 767 flow [2024-11-12 12:08:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:37,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2024-11-12 12:08:37,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.861995753715499 [2024-11-12 12:08:37,365 INFO L175 Difference]: Start difference. First operand has 273 places, 284 transitions, 648 flow. Second operand 3 states and 812 transitions. [2024-11-12 12:08:37,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 298 transitions, 767 flow [2024-11-12 12:08:37,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 298 transitions, 753 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:37,373 INFO L231 Difference]: Finished difference. Result has 275 places, 289 transitions, 692 flow [2024-11-12 12:08:37,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=275, PETRI_TRANSITIONS=289} [2024-11-12 12:08:37,374 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -23 predicate places. [2024-11-12 12:08:37,375 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 289 transitions, 692 flow [2024-11-12 12:08:37,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:37,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:37,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:37,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:08:37,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:37,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1529726229, now seen corresponding path program 1 times [2024-11-12 12:08:37,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:37,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130114136] [2024-11-12 12:08:37,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:37,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:37,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130114136] [2024-11-12 12:08:37,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130114136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:37,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:37,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:37,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529777779] [2024-11-12 12:08:37,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:37,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:37,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:37,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:37,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:37,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 314 [2024-11-12 12:08:37,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 289 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:37,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:37,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 314 [2024-11-12 12:08:37,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:39,370 INFO L124 PetriNetUnfolderBase]: 3714/20865 cut-off events. [2024-11-12 12:08:39,371 INFO L125 PetriNetUnfolderBase]: For 1087/1094 co-relation queries the response was YES. [2024-11-12 12:08:39,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29606 conditions, 20865 events. 3714/20865 cut-off events. For 1087/1094 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 284282 event pairs, 611 based on Foata normal form. 0/17978 useless extension candidates. Maximal degree in co-relation 13507. Up to 3496 conditions per place. [2024-11-12 12:08:39,514 INFO L140 encePairwiseOnDemand]: 287/314 looper letters, 50 selfloop transitions, 20 changer transitions 0/315 dead transitions. [2024-11-12 12:08:39,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 315 transitions, 886 flow [2024-11-12 12:08:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:39,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2024-11-12 12:08:39,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8471337579617835 [2024-11-12 12:08:39,517 INFO L175 Difference]: Start difference. First operand has 275 places, 289 transitions, 692 flow. Second operand 3 states and 798 transitions. [2024-11-12 12:08:39,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 315 transitions, 886 flow [2024-11-12 12:08:39,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 315 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:39,528 INFO L231 Difference]: Finished difference. Result has 277 places, 307 transitions, 846 flow [2024-11-12 12:08:39,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=277, PETRI_TRANSITIONS=307} [2024-11-12 12:08:39,531 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -21 predicate places. [2024-11-12 12:08:39,531 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 307 transitions, 846 flow [2024-11-12 12:08:39,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:39,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:39,532 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:39,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:08:39,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1529695444, now seen corresponding path program 1 times [2024-11-12 12:08:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245406311] [2024-11-12 12:08:39,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:39,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:39,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245406311] [2024-11-12 12:08:39,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245406311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:39,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:39,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:39,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689219527] [2024-11-12 12:08:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:39,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:39,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:39,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:39,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 314 [2024-11-12 12:08:39,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 307 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:39,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:39,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 314 [2024-11-12 12:08:39,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:42,921 INFO L124 PetriNetUnfolderBase]: 6315/33154 cut-off events. [2024-11-12 12:08:42,921 INFO L125 PetriNetUnfolderBase]: For 8255/9022 co-relation queries the response was YES. [2024-11-12 12:08:43,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55139 conditions, 33154 events. 6315/33154 cut-off events. For 8255/9022 co-relation queries the response was YES. Maximal size of possible extension queue 1088. Compared 483566 event pairs, 889 based on Foata normal form. 26/29329 useless extension candidates. Maximal degree in co-relation 20118. Up to 5954 conditions per place. [2024-11-12 12:08:43,140 INFO L140 encePairwiseOnDemand]: 287/314 looper letters, 56 selfloop transitions, 22 changer transitions 0/337 dead transitions. [2024-11-12 12:08:43,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 337 transitions, 1088 flow [2024-11-12 12:08:43,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2024-11-12 12:08:43,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8471337579617835 [2024-11-12 12:08:43,142 INFO L175 Difference]: Start difference. First operand has 277 places, 307 transitions, 846 flow. Second operand 3 states and 798 transitions. [2024-11-12 12:08:43,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 337 transitions, 1088 flow [2024-11-12 12:08:43,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 337 transitions, 1040 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:43,165 INFO L231 Difference]: Finished difference. Result has 279 places, 327 transitions, 996 flow [2024-11-12 12:08:43,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=996, PETRI_PLACES=279, PETRI_TRANSITIONS=327} [2024-11-12 12:08:43,166 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -19 predicate places. [2024-11-12 12:08:43,166 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 327 transitions, 996 flow [2024-11-12 12:08:43,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:43,167 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:43,167 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:43,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:08:43,167 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:43,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1879124009, now seen corresponding path program 1 times [2024-11-12 12:08:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:43,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697773147] [2024-11-12 12:08:43,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:08:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:08:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:08:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697773147] [2024-11-12 12:08:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697773147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:08:43,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:08:43,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:08:43,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150273353] [2024-11-12 12:08:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:08:43,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:08:43,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:08:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:08:43,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:08:43,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 314 [2024-11-12 12:08:43,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 327 transitions, 996 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:43,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:08:43,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 314 [2024-11-12 12:08:43,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:08:47,353 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1407] L739-->L739-3: Formula: (or (and (= |v_#race~ctr1~0_295| |v_#race~ctr1~0_294|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_60|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_60|) (= v_~ctr1~0_191 v_~ctr1~0_190) (= (+ v_~ctr2~0_158 1) v_~ctr2~0_159) (< 0 |v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|)) (and (= v_~ctr2~0_159 v_~ctr2~0_158) (= v_~ctr1~0_191 (+ v_~ctr1~0_190 1)) (= |v_#race~ctr2~0_245| |v_#race~ctr2~0_244|) (<= |v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7| 0) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_60|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_60|))) InVars {qrcu_reader1Thread1of1ForFork0_~myidx~0#1=|v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|, #race~ctr1~0=|v_#race~ctr1~0_295|, ~ctr1~0=v_~ctr1~0_191, #race~ctr2~0=|v_#race~ctr2~0_245|, ~ctr2~0=v_~ctr2~0_159} OutVars{qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1_9|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1_9|, qrcu_reader1Thread1of1ForFork0_~myidx~0#1=|v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|, #race~ctr1~0=|v_#race~ctr1~0_294|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1_9|, #race~ctr2~0=|v_#race~ctr2~0_244|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1_9|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1_9|, ~ctr1~0=v_~ctr1~0_190, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1_9|, ~ctr2~0=v_~ctr2~0_158} AuxVars[|v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_61|] AssignedVars[qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1, #race~ctr1~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1, #race~ctr2~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1, ~ctr1~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1, ~ctr2~0][215], [Black: 321#(= |#race~readerprogress1~0| |qrcu_reader1Thread1of1ForFork0_#t~nondet22#1|), Black: 326#(= |qrcu_reader2Thread1of1ForFork1_#t~nondet25#1| |#race~readerprogress2~0|), 91#L786-4true, 339#true, 52#L758true, Black: 331#(= |#race~ctr1~0| 0), Black: 336#(= |#race~ctr2~0| 0), 334#true, Black: 311#(= |#race~idx~0| 0), Black: 316#(= |#race~readerprogress1~0| |qrcu_reader1Thread1of1ForFork0_#t~nondet21#1|), 307#true, 92#L772-15true, 55#L739-3true]) [2024-11-12 12:08:47,354 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2024-11-12 12:08:47,354 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-12 12:08:47,354 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2024-11-12 12:08:47,354 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-12 12:08:47,418 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1407] L739-->L739-3: Formula: (or (and (= |v_#race~ctr1~0_295| |v_#race~ctr1~0_294|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_60|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_60|) (= v_~ctr1~0_191 v_~ctr1~0_190) (= (+ v_~ctr2~0_158 1) v_~ctr2~0_159) (< 0 |v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|)) (and (= v_~ctr2~0_159 v_~ctr2~0_158) (= v_~ctr1~0_191 (+ v_~ctr1~0_190 1)) (= |v_#race~ctr2~0_245| |v_#race~ctr2~0_244|) (<= |v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7| 0) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_60|) (= |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_61| |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_60|))) InVars {qrcu_reader1Thread1of1ForFork0_~myidx~0#1=|v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|, #race~ctr1~0=|v_#race~ctr1~0_295|, ~ctr1~0=v_~ctr1~0_191, #race~ctr2~0=|v_#race~ctr2~0_245|, ~ctr2~0=v_~ctr2~0_159} OutVars{qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1_9|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1_9|, qrcu_reader1Thread1of1ForFork0_~myidx~0#1=|v_qrcu_reader1Thread1of1ForFork0_~myidx~0#1_7|, #race~ctr1~0=|v_#race~ctr1~0_294|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1_9|, #race~ctr2~0=|v_#race~ctr2~0_244|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1_9|, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1_9|, ~ctr1~0=v_~ctr1~0_190, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1=|v_qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1_9|, ~ctr2~0=v_~ctr2~0_158} AuxVars[|v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post11#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_60|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet12#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~post9#1_61|, |v_qrcu_reader1___VERIFIER_atomic_use_done_#t~nondet10#1_61|] AssignedVars[qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet12#1, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx#1, #race~ctr1~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~nondet10#1, #race~ctr2~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post9#1, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx#1, ~ctr1~0, qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post11#1, ~ctr2~0][215], [Black: 321#(= |#race~readerprogress1~0| |qrcu_reader1Thread1of1ForFork0_#t~nondet22#1|), 189#L772-16true, Black: 326#(= |qrcu_reader2Thread1of1ForFork1_#t~nondet25#1| |#race~readerprogress2~0|), 91#L786-4true, 339#true, Black: 331#(= |#race~ctr1~0| 0), 52#L758true, Black: 336#(= |#race~ctr2~0| 0), 334#true, Black: 311#(= |#race~idx~0| 0), 307#true, Black: 316#(= |#race~readerprogress1~0| |qrcu_reader1Thread1of1ForFork0_#t~nondet21#1|), 55#L739-3true]) [2024-11-12 12:08:47,418 INFO L294 olderBase$Statistics]: this new event has 126 ancestors and is cut-off event [2024-11-12 12:08:47,418 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-12 12:08:47,418 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-12 12:08:47,418 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2024-11-12 12:08:47,969 INFO L124 PetriNetUnfolderBase]: 10627/46408 cut-off events. [2024-11-12 12:08:47,969 INFO L125 PetriNetUnfolderBase]: For 21486/24381 co-relation queries the response was YES. [2024-11-12 12:08:48,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87984 conditions, 46408 events. 10627/46408 cut-off events. For 21486/24381 co-relation queries the response was YES. Maximal size of possible extension queue 1609. Compared 687710 event pairs, 2647 based on Foata normal form. 266/41063 useless extension candidates. Maximal degree in co-relation 33418. Up to 12118 conditions per place. [2024-11-12 12:08:48,390 INFO L140 encePairwiseOnDemand]: 309/314 looper letters, 50 selfloop transitions, 6 changer transitions 0/346 dead transitions. [2024-11-12 12:08:48,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 346 transitions, 1193 flow [2024-11-12 12:08:48,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:08:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:08:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2024-11-12 12:08:48,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.861995753715499 [2024-11-12 12:08:48,392 INFO L175 Difference]: Start difference. First operand has 279 places, 327 transitions, 996 flow. Second operand 3 states and 812 transitions. [2024-11-12 12:08:48,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 346 transitions, 1193 flow [2024-11-12 12:08:48,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 346 transitions, 1143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:08:48,417 INFO L231 Difference]: Finished difference. Result has 281 places, 332 transitions, 1012 flow [2024-11-12 12:08:48,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1012, PETRI_PLACES=281, PETRI_TRANSITIONS=332} [2024-11-12 12:08:48,418 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, -17 predicate places. [2024-11-12 12:08:48,418 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 332 transitions, 1012 flow [2024-11-12 12:08:48,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:08:48,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:08:48,419 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:48,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:08:48,419 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 112 more)] === [2024-11-12 12:08:48,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:08:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2127626371, now seen corresponding path program 1 times [2024-11-12 12:08:48,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:08:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489757610] [2024-11-12 12:08:48,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:08:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:08:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:08:48,443 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:08:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:08:48,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:08:48,485 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:08:48,486 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (114 of 115 remaining) [2024-11-12 12:08:48,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (113 of 115 remaining) [2024-11-12 12:08:48,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (112 of 115 remaining) [2024-11-12 12:08:48,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (111 of 115 remaining) [2024-11-12 12:08:48,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (110 of 115 remaining) [2024-11-12 12:08:48,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (109 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (108 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (107 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (106 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (105 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (104 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (103 of 115 remaining) [2024-11-12 12:08:48,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (102 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (101 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (100 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (99 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (98 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (97 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (96 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (95 of 115 remaining) [2024-11-12 12:08:48,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (94 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (93 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (92 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (91 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (90 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (89 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (88 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (87 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (86 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (85 of 115 remaining) [2024-11-12 12:08:48,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (84 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (83 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (82 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (81 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (80 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (79 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (78 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (77 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr26ASSERT_VIOLATIONDATA_RACE (76 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (75 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (74 of 115 remaining) [2024-11-12 12:08:48,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr27ASSERT_VIOLATIONDATA_RACE (73 of 115 remaining) [2024-11-12 12:08:48,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (72 of 115 remaining) [2024-11-12 12:08:48,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (71 of 115 remaining) [2024-11-12 12:08:48,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (70 of 115 remaining) [2024-11-12 12:08:48,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (69 of 115 remaining) [2024-11-12 12:08:48,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr28ASSERT_VIOLATIONDATA_RACE (68 of 115 remaining) [2024-11-12 12:08:48,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr29ASSERT_VIOLATIONDATA_RACE (67 of 115 remaining) [2024-11-12 12:08:48,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (66 of 115 remaining) [2024-11-12 12:08:48,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (65 of 115 remaining) [2024-11-12 12:08:48,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (64 of 115 remaining) [2024-11-12 12:08:48,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (63 of 115 remaining) [2024-11-12 12:08:48,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (62 of 115 remaining) [2024-11-12 12:08:48,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (61 of 115 remaining) [2024-11-12 12:08:48,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (60 of 115 remaining) [2024-11-12 12:08:48,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (59 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (58 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (54 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (53 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (52 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (51 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (50 of 115 remaining) [2024-11-12 12:08:48,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (49 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (48 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (47 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (46 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (45 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (44 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (43 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (42 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (41 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (40 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (39 of 115 remaining) [2024-11-12 12:08:48,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (38 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (37 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (36 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (35 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (34 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (33 of 115 remaining) [2024-11-12 12:08:48,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (32 of 115 remaining) [2024-11-12 12:08:48,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (31 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (30 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (29 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (28 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (27 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (26 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (25 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (24 of 115 remaining) [2024-11-12 12:08:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (23 of 115 remaining) [2024-11-12 12:08:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (22 of 115 remaining) [2024-11-12 12:08:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (21 of 115 remaining) [2024-11-12 12:08:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (20 of 115 remaining) [2024-11-12 12:08:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (19 of 115 remaining) [2024-11-12 12:08:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr26ASSERT_VIOLATIONDATA_RACE (18 of 115 remaining) [2024-11-12 12:08:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (17 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (16 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr27ASSERT_VIOLATIONDATA_RACE (15 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (14 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (13 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (12 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (11 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr28ASSERT_VIOLATIONDATA_RACE (10 of 115 remaining) [2024-11-12 12:08:48,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr29ASSERT_VIOLATIONDATA_RACE (9 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (8 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (7 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (6 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (5 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (4 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (3 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (2 of 115 remaining) [2024-11-12 12:08:48,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (1 of 115 remaining) [2024-11-12 12:08:48,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (0 of 115 remaining) [2024-11-12 12:08:48,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:08:48,509 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:08:48,562 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:08:48,562 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:08:48,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:08:48 BasicIcfg [2024-11-12 12:08:48,566 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:08:48,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:08:48,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:08:48,566 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:08:48,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:32" (3/4) ... [2024-11-12 12:08:48,567 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 12:08:48,630 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:08:48,630 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:08:48,631 INFO L158 Benchmark]: Toolchain (without parser) took 17401.17ms. Allocated memory was 151.0MB in the beginning and 6.5GB in the end (delta: 6.4GB). Free memory was 78.4MB in the beginning and 5.5GB in the end (delta: -5.5GB). Peak memory consumption was 904.3MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,631 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 151.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:08:48,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.28ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 78.1MB in the beginning and 175.7MB in the end (delta: -97.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.05ms. Allocated memory is still 218.1MB. Free memory was 175.7MB in the beginning and 172.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,632 INFO L158 Benchmark]: Boogie Preprocessor took 43.52ms. Allocated memory is still 218.1MB. Free memory was 172.6MB in the beginning and 169.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,632 INFO L158 Benchmark]: RCFGBuilder took 931.80ms. Allocated memory is still 218.1MB. Free memory was 169.5MB in the beginning and 79.3MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,632 INFO L158 Benchmark]: TraceAbstraction took 15815.79ms. Allocated memory was 218.1MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 79.3MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 819.6MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,632 INFO L158 Benchmark]: Witness Printer took 64.25ms. Allocated memory is still 6.5GB. Free memory was 5.6GB in the beginning and 5.5GB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 12:08:48,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 151.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.28ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 78.1MB in the beginning and 175.7MB in the end (delta: -97.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.05ms. Allocated memory is still 218.1MB. Free memory was 175.7MB in the beginning and 172.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.52ms. Allocated memory is still 218.1MB. Free memory was 172.6MB in the beginning and 169.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.80ms. Allocated memory is still 218.1MB. Free memory was 169.5MB in the beginning and 79.3MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15815.79ms. Allocated memory was 218.1MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 79.3MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 819.6MB. Max. memory is 16.1GB. * Witness Printer took 64.25ms. Allocated memory is still 6.5GB. Free memory was 5.6GB in the beginning and 5.5GB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 737]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int idx=0; VAL [idx=0] [L690] 0 int ctr1=1, ctr2=0; VAL [ctr1=1, ctr2=0, idx=0] [L691] 0 int readerprogress1=0, readerprogress2=0; VAL [ctr1=1, ctr2=0, idx=0, readerprogress1=0, readerprogress2=0] [L692] 0 pthread_mutex_t mutex; VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L782] 0 pthread_t t1, t2, t3; VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L784] FCALL, FORK 0 pthread_create(&t1, 0, qrcu_reader1, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0, t1=-2] [L724] 1 int myidx; VAL [\old(arg)={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L725] COND TRUE 1 1 VAL [\old(arg)={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L726] 1 myidx = idx VAL [\old(arg)={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=0] [L727] COND TRUE 1 __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=0, readerprogress2=0] [L728] CALL 1 __VERIFIER_atomic_use1(myidx) [L694] EXPR 1 myidx <= 0 && ctr1>0 [L694] EXPR 1 ctr1>0 [L694] EXPR 1 myidx <= 0 && ctr1>0 [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 [\old(arg)={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=1, readerprogress2=0] [L785] FCALL, FORK 0 pthread_create(&t2, 0, qrcu_reader2, 0) VAL [ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=1, readerprogress2=0, t1=-2, t2=-1] [L786] FCALL, FORK 0 pthread_create(&t3, 0, qrcu_updater, 0) VAL [ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=1, readerprogress2=0, t1=-2, t2=-1, t3=0] [L762] 3 int i; VAL [\old(arg)={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=1, readerprogress2=0] [L763] 3 int readerstart1, readerstart2; VAL [\old(arg)={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=1, readerprogress2=0, readerstart1={6:0}, readerstart2={5:0}] [L764] 3 int sum; VAL [\old(arg)={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=1, readerprogress2=0, readerstart1={6:0}, readerstart2={5:0}] [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) [L737] 1 readerprogress1 = 1 VAL [\old(arg)={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, myidx=0, readerprogress1=1, readerprogress2=0] Now there is a data race on ~readerprogress1~0 between C: *readerstart1 = readerprogress1 [706] and C: readerprogress1 = 1 [737] - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 786]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 547 locations, 115 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 415 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 63 mSDtfsCounter, 415 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1012occurred in iteration=7, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 392 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-11-12 12:08:48,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE