./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc 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-ext/36_stack_cas_p0_vs_concur.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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:31:54,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:31:54,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:31:54,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:31:54,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:31:54,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:31:54,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:31:54,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:31:54,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:31:54,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:31:54,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:31:54,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:31:54,764 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:31:54,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:31:54,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:31:54,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:31:54,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:31:54,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:31:54,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:31:54,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:31:54,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:31:54,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:31:54,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:31:54,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:31:54,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:31:54,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:31:54,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:31:54,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:31:54,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:31:54,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:31:54,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:31:54,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:31:54,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:31:54,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:31:54,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:31:54,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:31:54,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 [2024-11-19 05:31:54,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:31:55,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:31:55,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:31:55,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:31:55,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:31:55,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-19 05:31:56,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:31:56,496 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:31:56,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-19 05:31:56,508 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804d8ea11/96caf7c5fc2540c4bb89650225105b4c/FLAG33b9ad8f8 [2024-11-19 05:31:56,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804d8ea11/96caf7c5fc2540c4bb89650225105b4c [2024-11-19 05:31:56,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:31:56,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:31:56,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:31:56,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:31:56,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:31:56,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:56,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520c28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56, skipping insertion in model container [2024-11-19 05:31:56,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:56,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:31:56,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:31:56,851 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:31:56,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:31:56,935 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:31:56,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56 WrapperNode [2024-11-19 05:31:56,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:31:56,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:31:56,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:31:56,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:31:56,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:56,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,000 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 259 [2024-11-19 05:31:57,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:31:57,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:31:57,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:31:57,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:31:57,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:31:57,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:31:57,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:31:57,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:31:57,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (1/1) ... [2024-11-19 05:31:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:31:57,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:31:57,080 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) [2024-11-19 05:31:57,086 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 [2024-11-19 05:31:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:31:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-19 05:31:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-19 05:31:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:31:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 05:31:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:31:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:31:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:31:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:31:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 05:31:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:31:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:31:57,148 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:31:57,302 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:31:57,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:31:57,710 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:31:57,710 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:31:57,909 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:31:57,912 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 05:31:57,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:31:57 BoogieIcfgContainer [2024-11-19 05:31:57,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:31:57,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:31:57,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:31:57,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:31:57,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:31:56" (1/3) ... [2024-11-19 05:31:57,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e9ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:31:57, skipping insertion in model container [2024-11-19 05:31:57,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:31:56" (2/3) ... [2024-11-19 05:31:57,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e9ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:31:57, skipping insertion in model container [2024-11-19 05:31:57,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:31:57" (3/3) ... [2024-11-19 05:31:57,921 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2024-11-19 05:31:57,937 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:31:57,938 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-11-19 05:31:57,938 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:31:58,027 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:31:58,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 198 transitions, 400 flow [2024-11-19 05:31:58,139 INFO L124 PetriNetUnfolderBase]: 9/207 cut-off events. [2024-11-19 05:31:58,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:31:58,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 207 events. 9/207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 140 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 118. Up to 4 conditions per place. [2024-11-19 05:31:58,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 198 transitions, 400 flow [2024-11-19 05:31:58,154 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 198 transitions, 400 flow [2024-11-19 05:31:58,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:31:58,169 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;@450759d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:31:58,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 05:31:58,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:31:58,195 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-19 05:31:58,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:31:58,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:31:58,197 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:31:58,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 05:31:58,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:31:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1537184884, now seen corresponding path program 1 times [2024-11-19 05:31:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:31:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731345443] [2024-11-19 05:31:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:31:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:31:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:31:58,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:31:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:31:58,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:31:58,481 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:31:58,483 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-19 05:31:58,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-19 05:31:58,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-19 05:31:58,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-19 05:31:58,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-19 05:31:58,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-19 05:31:58,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-11-19 05:31:58,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-19 05:31:58,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-19 05:31:58,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-19 05:31:58,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-19 05:31:58,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-19 05:31:58,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-19 05:31:58,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-19 05:31:58,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-19 05:31:58,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-19 05:31:58,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-19 05:31:58,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-19 05:31:58,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-19 05:31:58,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-19 05:31:58,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-19 05:31:58,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-19 05:31:58,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-19 05:31:58,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-19 05:31:58,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-19 05:31:58,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-19 05:31:58,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-19 05:31:58,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-19 05:31:58,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-19 05:31:58,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-19 05:31:58,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-19 05:31:58,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-19 05:31:58,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:31:58,495 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 05:31:58,499 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:31:58,499 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:31:58,649 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:31:58,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 296 places, 306 transitions, 622 flow [2024-11-19 05:31:58,746 INFO L124 PetriNetUnfolderBase]: 17/326 cut-off events. [2024-11-19 05:31:58,746 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 05:31:58,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 326 events. 17/326 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 566 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. [2024-11-19 05:31:58,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 296 places, 306 transitions, 622 flow [2024-11-19 05:31:58,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 306 transitions, 622 flow [2024-11-19 05:31:58,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:31:58,763 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;@450759d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:31:58,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-19 05:31:58,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:31:58,777 INFO L124 PetriNetUnfolderBase]: 5/119 cut-off events. [2024-11-19 05:31:58,778 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:31:58,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:31:58,778 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:31:58,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-19 05:31:58,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:31:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2024241367, now seen corresponding path program 1 times [2024-11-19 05:31:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:31:58,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831042144] [2024-11-19 05:31:58,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:31:58,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:31:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:31:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:31:58,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:31:58,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831042144] [2024-11-19 05:31:58,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831042144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:31:58,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:31:58,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:31:58,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022666175] [2024-11-19 05:31:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:31:58,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:31:58,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:31:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:31:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:31:58,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 306 [2024-11-19 05:31:58,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 306 transitions, 622 flow. Second operand has 2 states, 2 states have (on average 261.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:31:58,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:31:58,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 306 [2024-11-19 05:31:59,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:31:59,229 INFO L124 PetriNetUnfolderBase]: 38/653 cut-off events. [2024-11-19 05:31:59,229 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 05:31:59,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 653 events. 38/653 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2250 event pairs, 15 based on Foata normal form. 59/646 useless extension candidates. Maximal degree in co-relation 226. Up to 52 conditions per place. [2024-11-19 05:31:59,237 INFO L140 encePairwiseOnDemand]: 270/306 looper letters, 10 selfloop transitions, 0 changer transitions 0/255 dead transitions. [2024-11-19 05:31:59,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 255 transitions, 540 flow [2024-11-19 05:31:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:31:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:31:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2024-11-19 05:31:59,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9248366013071896 [2024-11-19 05:31:59,256 INFO L175 Difference]: Start difference. First operand has 296 places, 306 transitions, 622 flow. Second operand 2 states and 566 transitions. [2024-11-19 05:31:59,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 255 transitions, 540 flow [2024-11-19 05:31:59,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 255 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:31:59,266 INFO L231 Difference]: Finished difference. Result has 255 places, 255 transitions, 520 flow [2024-11-19 05:31:59,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=520, PETRI_PLACES=255, PETRI_TRANSITIONS=255} [2024-11-19 05:31:59,271 INFO L277 CegarLoopForPetriNet]: 296 programPoint places, -41 predicate places. [2024-11-19 05:31:59,272 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 255 transitions, 520 flow [2024-11-19 05:31:59,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 261.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:31:59,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:31:59,273 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:31:59,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:31:59,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-19 05:31:59,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:31:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1477391057, now seen corresponding path program 1 times [2024-11-19 05:31:59,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:31:59,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719004818] [2024-11-19 05:31:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:31:59,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:31:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:31:59,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:31:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:31:59,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:31:59,386 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:31:59,386 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-19 05:31:59,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-19 05:31:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-19 05:31:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-19 05:31:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-19 05:31:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-19 05:31:59,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-19 05:31:59,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-19 05:31:59,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-19 05:31:59,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-19 05:31:59,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-19 05:31:59,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-19 05:31:59,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-19 05:31:59,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-19 05:31:59,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-19 05:31:59,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-19 05:31:59,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-19 05:31:59,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-19 05:31:59,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-19 05:31:59,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:31:59,399 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 05:31:59,399 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:31:59,399 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:31:59,491 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:31:59,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 399 places, 414 transitions, 846 flow [2024-11-19 05:31:59,566 INFO L124 PetriNetUnfolderBase]: 25/445 cut-off events. [2024-11-19 05:31:59,567 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 05:31:59,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 445 events. 25/445 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1200 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 332. Up to 8 conditions per place. [2024-11-19 05:31:59,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 399 places, 414 transitions, 846 flow [2024-11-19 05:31:59,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 414 transitions, 846 flow [2024-11-19 05:31:59,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:31:59,586 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;@450759d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:31:59,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-19 05:31:59,598 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:31:59,599 INFO L124 PetriNetUnfolderBase]: 5/119 cut-off events. [2024-11-19 05:31:59,599 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:31:59,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:31:59,599 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:31:59,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-19 05:31:59,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:31:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash -188105396, now seen corresponding path program 1 times [2024-11-19 05:31:59,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:31:59,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753591819] [2024-11-19 05:31:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:31:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:31:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:31:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:31:59,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:31:59,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753591819] [2024-11-19 05:31:59,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753591819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:31:59,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:31:59,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:31:59,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190154120] [2024-11-19 05:31:59,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:31:59,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:31:59,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:31:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:31:59,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:31:59,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 414 [2024-11-19 05:31:59,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 414 transitions, 846 flow. Second operand has 2 states, 2 states have (on average 347.0) internal successors, (694), 2 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:31:59,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:31:59,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 414 [2024-11-19 05:31:59,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:32:00,585 INFO L124 PetriNetUnfolderBase]: 325/3161 cut-off events. [2024-11-19 05:32:00,586 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-11-19 05:32:00,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3660 conditions, 3161 events. 325/3161 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 24478 event pairs, 178 based on Foata normal form. 408/3220 useless extension candidates. Maximal degree in co-relation 714. Up to 397 conditions per place. [2024-11-19 05:32:00,615 INFO L140 encePairwiseOnDemand]: 361/414 looper letters, 15 selfloop transitions, 0 changer transitions 0/340 dead transitions. [2024-11-19 05:32:00,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 340 transitions, 728 flow [2024-11-19 05:32:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:32:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:32:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 760 transitions. [2024-11-19 05:32:00,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9178743961352657 [2024-11-19 05:32:00,622 INFO L175 Difference]: Start difference. First operand has 399 places, 414 transitions, 846 flow. Second operand 2 states and 760 transitions. [2024-11-19 05:32:00,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 340 transitions, 728 flow [2024-11-19 05:32:00,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 340 transitions, 726 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-19 05:32:00,632 INFO L231 Difference]: Finished difference. Result has 339 places, 340 transitions, 696 flow [2024-11-19 05:32:00,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=696, PETRI_PLACES=339, PETRI_TRANSITIONS=340} [2024-11-19 05:32:00,633 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -60 predicate places. [2024-11-19 05:32:00,635 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 340 transitions, 696 flow [2024-11-19 05:32:00,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 347.0) internal successors, (694), 2 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:00,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:32:00,636 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:32:00,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:32:00,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-19 05:32:00,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:32:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash -455123115, now seen corresponding path program 1 times [2024-11-19 05:32:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:32:00,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878335646] [2024-11-19 05:32:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:32:00,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:32:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:32:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:32:01,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:32:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878335646] [2024-11-19 05:32:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878335646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:32:01,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:32:01,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:32:01,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18158998] [2024-11-19 05:32:01,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:32:01,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:32:01,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:32:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:32:01,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:32:01,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 414 [2024-11-19 05:32:01,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 340 transitions, 696 flow. Second operand has 6 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:01,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:32:01,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 414 [2024-11-19 05:32:01,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:32:06,250 INFO L124 PetriNetUnfolderBase]: 4013/22326 cut-off events. [2024-11-19 05:32:06,250 INFO L125 PetriNetUnfolderBase]: For 1147/1147 co-relation queries the response was YES. [2024-11-19 05:32:06,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28776 conditions, 22326 events. 4013/22326 cut-off events. For 1147/1147 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 281629 event pairs, 615 based on Foata normal form. 0/19941 useless extension candidates. Maximal degree in co-relation 28770. Up to 3545 conditions per place. [2024-11-19 05:32:06,457 INFO L140 encePairwiseOnDemand]: 385/414 looper letters, 76 selfloop transitions, 37 changer transitions 0/410 dead transitions. [2024-11-19 05:32:06,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 410 transitions, 1102 flow [2024-11-19 05:32:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:32:06,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:32:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2019 transitions. [2024-11-19 05:32:06,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8128019323671497 [2024-11-19 05:32:06,461 INFO L175 Difference]: Start difference. First operand has 339 places, 340 transitions, 696 flow. Second operand 6 states and 2019 transitions. [2024-11-19 05:32:06,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 410 transitions, 1102 flow [2024-11-19 05:32:06,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 410 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:32:06,473 INFO L231 Difference]: Finished difference. Result has 349 places, 376 transitions, 972 flow [2024-11-19 05:32:06,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=972, PETRI_PLACES=349, PETRI_TRANSITIONS=376} [2024-11-19 05:32:06,475 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -50 predicate places. [2024-11-19 05:32:06,476 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 376 transitions, 972 flow [2024-11-19 05:32:06,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:06,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:32:06,478 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:32:06,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:32:06,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-19 05:32:06,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:32:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1587546645, now seen corresponding path program 1 times [2024-11-19 05:32:06,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:32:06,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271644212] [2024-11-19 05:32:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:32:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:32:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:32:06,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:32:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:32:06,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:32:06,538 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:32:06,538 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2024-11-19 05:32:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2024-11-19 05:32:06,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2024-11-19 05:32:06,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2024-11-19 05:32:06,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2024-11-19 05:32:06,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2024-11-19 05:32:06,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2024-11-19 05:32:06,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2024-11-19 05:32:06,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2024-11-19 05:32:06,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2024-11-19 05:32:06,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:32:06,550 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 05:32:06,550 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:32:06,551 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-19 05:32:06,656 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:32:06,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 502 places, 522 transitions, 1072 flow [2024-11-19 05:32:06,839 INFO L124 PetriNetUnfolderBase]: 33/564 cut-off events. [2024-11-19 05:32:06,839 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-19 05:32:06,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 564 events. 33/564 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1868 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 453. Up to 10 conditions per place. [2024-11-19 05:32:06,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 502 places, 522 transitions, 1072 flow [2024-11-19 05:32:06,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 502 places, 522 transitions, 1072 flow [2024-11-19 05:32:06,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:32:06,852 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;@450759d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:32:06,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2024-11-19 05:32:06,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:32:06,857 INFO L124 PetriNetUnfolderBase]: 5/119 cut-off events. [2024-11-19 05:32:06,857 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:32:06,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:32:06,857 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:32:06,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-19 05:32:06,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:32:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -396699220, now seen corresponding path program 1 times [2024-11-19 05:32:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:32:06,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266136992] [2024-11-19 05:32:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:32:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:32:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:32:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:32:06,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:32:06,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266136992] [2024-11-19 05:32:06,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266136992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:32:06,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:32:06,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:32:06,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386003835] [2024-11-19 05:32:06,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:32:06,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:32:06,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:32:06,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:32:06,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:32:06,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 522 [2024-11-19 05:32:06,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 522 transitions, 1072 flow. Second operand has 2 states, 2 states have (on average 433.0) internal successors, (866), 2 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:06,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:32:06,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 522 [2024-11-19 05:32:06,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:32:10,328 INFO L124 PetriNetUnfolderBase]: 2297/16094 cut-off events. [2024-11-19 05:32:10,328 INFO L125 PetriNetUnfolderBase]: For 1729/1729 co-relation queries the response was YES. [2024-11-19 05:32:10,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19402 conditions, 16094 events. 2297/16094 cut-off events. For 1729/1729 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 183425 event pairs, 1422 based on Foata normal form. 2581/16935 useless extension candidates. Maximal degree in co-relation 3638. Up to 2665 conditions per place. [2024-11-19 05:32:10,539 INFO L140 encePairwiseOnDemand]: 452/522 looper letters, 20 selfloop transitions, 0 changer transitions 0/425 dead transitions. [2024-11-19 05:32:10,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 425 transitions, 918 flow [2024-11-19 05:32:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:32:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:32:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 954 transitions. [2024-11-19 05:32:10,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137931034482759 [2024-11-19 05:32:10,542 INFO L175 Difference]: Start difference. First operand has 502 places, 522 transitions, 1072 flow. Second operand 2 states and 954 transitions. [2024-11-19 05:32:10,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 425 transitions, 918 flow [2024-11-19 05:32:10,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 912 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-19 05:32:10,552 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 872 flow [2024-11-19 05:32:10,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=522, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=872, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2024-11-19 05:32:10,553 INFO L277 CegarLoopForPetriNet]: 502 programPoint places, -79 predicate places. [2024-11-19 05:32:10,553 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 872 flow [2024-11-19 05:32:10,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 433.0) internal successors, (866), 2 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:10,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:32:10,554 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:32:10,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:32:10,555 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-19 05:32:10,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:32:10,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2120145003, now seen corresponding path program 1 times [2024-11-19 05:32:10,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:32:10,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013481625] [2024-11-19 05:32:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:32:10,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:32:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:32:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:32:11,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:32:11,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013481625] [2024-11-19 05:32:11,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013481625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:32:11,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:32:11,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:32:11,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963999728] [2024-11-19 05:32:11,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:32:11,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:32:11,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:32:11,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:32:11,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:32:11,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 522 [2024-11-19 05:32:11,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:11,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:32:11,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 522 [2024-11-19 05:32:11,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:32:39,194 INFO L124 PetriNetUnfolderBase]: 30476/123955 cut-off events. [2024-11-19 05:32:39,194 INFO L125 PetriNetUnfolderBase]: For 7576/7576 co-relation queries the response was YES. [2024-11-19 05:32:40,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167645 conditions, 123955 events. 30476/123955 cut-off events. For 7576/7576 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 1868182 event pairs, 5576 based on Foata normal form. 0/111841 useless extension candidates. Maximal degree in co-relation 167638. Up to 26238 conditions per place. [2024-11-19 05:32:41,674 INFO L140 encePairwiseOnDemand]: 491/522 looper letters, 93 selfloop transitions, 45 changer transitions 0/515 dead transitions. [2024-11-19 05:32:41,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 515 transitions, 1388 flow [2024-11-19 05:32:41,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:32:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:32:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2560 transitions. [2024-11-19 05:32:41,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8173690932311622 [2024-11-19 05:32:41,679 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 872 flow. Second operand 6 states and 2560 transitions. [2024-11-19 05:32:41,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 515 transitions, 1388 flow [2024-11-19 05:32:41,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 515 transitions, 1388 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:32:41,726 INFO L231 Difference]: Finished difference. Result has 433 places, 469 transitions, 1200 flow [2024-11-19 05:32:41,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=522, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1200, PETRI_PLACES=433, PETRI_TRANSITIONS=469} [2024-11-19 05:32:41,727 INFO L277 CegarLoopForPetriNet]: 502 programPoint places, -69 predicate places. [2024-11-19 05:32:41,727 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 469 transitions, 1200 flow [2024-11-19 05:32:41,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:41,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:32:41,729 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:32:41,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:32:41,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-19 05:32:41,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:32:41,729 INFO L85 PathProgramCache]: Analyzing trace with hash -434035517, now seen corresponding path program 1 times [2024-11-19 05:32:41,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:32:41,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995903941] [2024-11-19 05:32:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:32:41,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:32:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:32:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 05:32:42,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:32:42,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995903941] [2024-11-19 05:32:42,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995903941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:32:42,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:32:42,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:32:42,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193965363] [2024-11-19 05:32:42,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:32:42,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:32:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:32:42,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:32:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:32:43,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 522 [2024-11-19 05:32:43,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 469 transitions, 1200 flow. Second operand has 6 states, 6 states have (on average 404.6666666666667) internal successors, (2428), 6 states have internal predecessors, (2428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:32:43,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:32:43,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 522 [2024-11-19 05:32:43,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand