./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:44:55,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:44:55,581 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:44:55,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:44:55,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:44:55,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:44:55,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:44:55,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:44:55,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:44:55,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:44:55,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:44:55,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:44:55,621 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:44:55,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:44:55,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:44:55,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:44:55,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:44:55,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:44:55,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:44:55,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:44:55,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:44:55,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:44:55,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:44:55,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:44:55,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:44:55,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:44:55,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:44:55,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:44:55,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:44:55,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:44:55,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2024-10-14 16:44:55,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:44:55,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:44:55,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:44:55,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:44:55,844 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:44:55,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2024-10-14 16:44:57,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:44:57,217 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:44:57,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2024-10-14 16:44:57,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019705edb/5833ed18b5f443acbd43c6fa44d39e96/FLAGaab31b152 [2024-10-14 16:44:57,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019705edb/5833ed18b5f443acbd43c6fa44d39e96 [2024-10-14 16:44:57,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:44:57,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:44:57,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:44:57,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:44:57,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:44:57,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:44:57" (1/1) ... [2024-10-14 16:44:57,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0811e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:57, skipping insertion in model container [2024-10-14 16:44:57,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:44:57" (1/1) ... [2024-10-14 16:44:57,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:44:57,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:44:57,935 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:44:57,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:44:58,020 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:44:58,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58 WrapperNode [2024-10-14 16:44:58,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:44:58,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:44:58,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:44:58,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:44:58,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,086 INFO L138 Inliner]: procedures = 176, calls = 34, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 219 [2024-10-14 16:44:58,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:44:58,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:44:58,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:44:58,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:44:58,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:44:58,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:44:58,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:44:58,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:44:58,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (1/1) ... [2024-10-14 16:44:58,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:44:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:44:58,172 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) [2024-10-14 16:44:58,173 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 [2024-10-14 16:44:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-14 16:44:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:44:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:44:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:44:58,204 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:44:58,292 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:44:58,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:44:58,575 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:44:58,575 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:44:58,692 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:44:58,692 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-14 16:44:58,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:58 BoogieIcfgContainer [2024-10-14 16:44:58,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:44:58,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:44:58,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:44:58,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:44:58,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:44:57" (1/3) ... [2024-10-14 16:44:58,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3009de68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:44:58, skipping insertion in model container [2024-10-14 16:44:58,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:58" (2/3) ... [2024-10-14 16:44:58,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3009de68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:44:58, skipping insertion in model container [2024-10-14 16:44:58,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:58" (3/3) ... [2024-10-14 16:44:58,701 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2024-10-14 16:44:58,715 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:44:58,715 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-14 16:44:58,715 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:44:58,780 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:58,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 177 transitions, 358 flow [2024-10-14 16:44:58,874 INFO L124 PetriNetUnfolderBase]: 17/186 cut-off events. [2024-10-14 16:44:58,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:58,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 186 events. 17/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 161. Up to 4 conditions per place. [2024-10-14 16:44:58,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 177 transitions, 358 flow [2024-10-14 16:44:58,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 177 transitions, 358 flow [2024-10-14 16:44:58,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:58,899 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;@19d7fcf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:58,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-14 16:44:58,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:58,905 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-14 16:44:58,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:58,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:58,905 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] [2024-10-14 16:44:58,906 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-14 16:44:58,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:58,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1827644567, now seen corresponding path program 1 times [2024-10-14 16:44:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116944301] [2024-10-14 16:44:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:58,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116944301] [2024-10-14 16:44:59,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116944301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:59,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:59,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:59,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104277476] [2024-10-14 16:44:59,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:59,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:59,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:59,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:59,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:59,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 177 [2024-10-14 16:44:59,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 177 transitions, 358 flow. Second operand has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:59,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 177 [2024-10-14 16:44:59,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:59,235 INFO L124 PetriNetUnfolderBase]: 4/148 cut-off events. [2024-10-14 16:44:59,235 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:44:59,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 148 events. 4/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 139 event pairs, 0 based on Foata normal form. 14/149 useless extension candidates. Maximal degree in co-relation 132. Up to 6 conditions per place. [2024-10-14 16:44:59,238 INFO L140 encePairwiseOnDemand]: 154/177 looper letters, 5 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2024-10-14 16:44:59,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 144 transitions, 302 flow [2024-10-14 16:44:59,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 320 transitions. [2024-10-14 16:44:59,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.903954802259887 [2024-10-14 16:44:59,252 INFO L175 Difference]: Start difference. First operand has 164 places, 177 transitions, 358 flow. Second operand 2 states and 320 transitions. [2024-10-14 16:44:59,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 144 transitions, 302 flow [2024-10-14 16:44:59,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:59,258 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 292 flow [2024-10-14 16:44:59,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2024-10-14 16:44:59,263 INFO L277 CegarLoopForPetriNet]: 164 programPoint places, -20 predicate places. [2024-10-14 16:44:59,264 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 292 flow [2024-10-14 16:44:59,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:59,264 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] [2024-10-14 16:44:59,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:44:59,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-14 16:44:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash -275172454, now seen corresponding path program 1 times [2024-10-14 16:44:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798381063] [2024-10-14 16:44:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:59,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798381063] [2024-10-14 16:44:59,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798381063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:59,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:59,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:59,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518621515] [2024-10-14 16:44:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:59,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:59,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:59,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:59,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2024-10-14 16:44:59,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:59,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2024-10-14 16:44:59,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:59,393 INFO L124 PetriNetUnfolderBase]: 4/147 cut-off events. [2024-10-14 16:44:59,395 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:44:59,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 147 events. 4/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 135 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 157. Up to 5 conditions per place. [2024-10-14 16:44:59,396 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 6 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2024-10-14 16:44:59,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 143 transitions, 306 flow [2024-10-14 16:44:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2024-10-14 16:44:59,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8192090395480226 [2024-10-14 16:44:59,399 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 292 flow. Second operand 3 states and 435 transitions. [2024-10-14 16:44:59,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 143 transitions, 306 flow [2024-10-14 16:44:59,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 143 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:59,406 INFO L231 Difference]: Finished difference. Result has 145 places, 143 transitions, 294 flow [2024-10-14 16:44:59,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2024-10-14 16:44:59,407 INFO L277 CegarLoopForPetriNet]: 164 programPoint places, -19 predicate places. [2024-10-14 16:44:59,407 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 294 flow [2024-10-14 16:44:59,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:59,408 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] [2024-10-14 16:44:59,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:44:59,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-14 16:44:59,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash 681716075, now seen corresponding path program 1 times [2024-10-14 16:44:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:59,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143275405] [2024-10-14 16:44:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:59,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:59,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:44:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:59,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:44:59,449 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:44:59,450 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-14 16:44:59,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-14 16:44:59,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-14 16:44:59,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-14 16:44:59,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-14 16:44:59,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-14 16:44:59,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-14 16:44:59,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-14 16:44:59,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:44:59,457 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:44:59,458 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:44:59,459 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 16:44:59,509 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:59,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 328 transitions, 666 flow [2024-10-14 16:44:59,560 INFO L124 PetriNetUnfolderBase]: 33/348 cut-off events. [2024-10-14 16:44:59,560 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:44:59,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 348 events. 33/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1217 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 311. Up to 6 conditions per place. [2024-10-14 16:44:59,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 328 transitions, 666 flow [2024-10-14 16:44:59,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 328 transitions, 666 flow [2024-10-14 16:44:59,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:59,574 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;@19d7fcf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:59,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-10-14 16:44:59,593 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:59,593 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-14 16:44:59,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:59,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:59,593 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] [2024-10-14 16:44:59,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-14 16:44:59,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:59,594 INFO L85 PathProgramCache]: Analyzing trace with hash -411774539, now seen corresponding path program 1 times [2024-10-14 16:44:59,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:59,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764861569] [2024-10-14 16:44:59,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:59,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:59,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:59,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764861569] [2024-10-14 16:44:59,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764861569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:59,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:59,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:59,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162073203] [2024-10-14 16:44:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:59,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:59,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:59,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 328 [2024-10-14 16:44:59,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 328 transitions, 666 flow. Second operand has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:59,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 328 [2024-10-14 16:44:59,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:59,781 INFO L124 PetriNetUnfolderBase]: 48/902 cut-off events. [2024-10-14 16:44:59,781 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-14 16:44:59,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 902 events. 48/902 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4980 event pairs, 20 based on Foata normal form. 109/913 useless extension candidates. Maximal degree in co-relation 790. Up to 51 conditions per place. [2024-10-14 16:44:59,788 INFO L140 encePairwiseOnDemand]: 284/328 looper letters, 10 selfloop transitions, 0 changer transitions 0/267 dead transitions. [2024-10-14 16:44:59,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 267 transitions, 564 flow [2024-10-14 16:44:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 590 transitions. [2024-10-14 16:44:59,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899390243902439 [2024-10-14 16:44:59,793 INFO L175 Difference]: Start difference. First operand has 302 places, 328 transitions, 666 flow. Second operand 2 states and 590 transitions. [2024-10-14 16:44:59,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 267 transitions, 564 flow [2024-10-14 16:44:59,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 267 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:59,798 INFO L231 Difference]: Finished difference. Result has 265 places, 267 transitions, 544 flow [2024-10-14 16:44:59,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=544, PETRI_PLACES=265, PETRI_TRANSITIONS=267} [2024-10-14 16:44:59,800 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, -37 predicate places. [2024-10-14 16:44:59,800 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 267 transitions, 544 flow [2024-10-14 16:44:59,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:59,802 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] [2024-10-14 16:44:59,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:44:59,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-14 16:44:59,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:59,803 INFO L85 PathProgramCache]: Analyzing trace with hash -578302728, now seen corresponding path program 1 times [2024-10-14 16:44:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:59,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022395678] [2024-10-14 16:44:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:59,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:59,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022395678] [2024-10-14 16:44:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022395678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:59,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:59,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249857208] [2024-10-14 16:44:59,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:59,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:59,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:59,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 328 [2024-10-14 16:44:59,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 267 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:59,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:59,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 328 [2024-10-14 16:44:59,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:00,144 INFO L124 PetriNetUnfolderBase]: 119/1685 cut-off events. [2024-10-14 16:45:00,144 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-14 16:45:00,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1685 events. 119/1685 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12150 event pairs, 27 based on Foata normal form. 0/1509 useless extension candidates. Maximal degree in co-relation 1869. Up to 92 conditions per place. [2024-10-14 16:45:00,154 INFO L140 encePairwiseOnDemand]: 320/328 looper letters, 27 selfloop transitions, 6 changer transitions 0/282 dead transitions. [2024-10-14 16:45:00,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 282 transitions, 645 flow [2024-10-14 16:45:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 815 transitions. [2024-10-14 16:45:00,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282520325203252 [2024-10-14 16:45:00,158 INFO L175 Difference]: Start difference. First operand has 265 places, 267 transitions, 544 flow. Second operand 3 states and 815 transitions. [2024-10-14 16:45:00,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 282 transitions, 645 flow [2024-10-14 16:45:00,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 282 transitions, 645 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:00,165 INFO L231 Difference]: Finished difference. Result has 269 places, 273 transitions, 596 flow [2024-10-14 16:45:00,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=269, PETRI_TRANSITIONS=273} [2024-10-14 16:45:00,167 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, -33 predicate places. [2024-10-14 16:45:00,167 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 273 transitions, 596 flow [2024-10-14 16:45:00,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:00,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:00,168 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] [2024-10-14 16:45:00,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:45:00,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-14 16:45:00,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1527490542, now seen corresponding path program 1 times [2024-10-14 16:45:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:00,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899775501] [2024-10-14 16:45:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:00,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:45:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:00,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:45:00,205 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:45:00,205 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-10-14 16:45:00,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-10-14 16:45:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-10-14 16:45:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-10-14 16:45:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-10-14 16:45:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-10-14 16:45:00,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-10-14 16:45:00,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-10-14 16:45:00,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-10-14 16:45:00,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-10-14 16:45:00,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:45:00,214 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:45:00,214 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:45:00,214 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-14 16:45:00,290 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:00,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 479 transitions, 976 flow [2024-10-14 16:45:00,369 INFO L124 PetriNetUnfolderBase]: 49/510 cut-off events. [2024-10-14 16:45:00,370 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 16:45:00,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 510 events. 49/510 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2224 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 461. Up to 8 conditions per place. [2024-10-14 16:45:00,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 479 transitions, 976 flow [2024-10-14 16:45:00,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 479 transitions, 976 flow [2024-10-14 16:45:00,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:00,384 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;@19d7fcf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:00,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-14 16:45:00,386 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:00,386 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-14 16:45:00,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:00,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:00,386 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] [2024-10-14 16:45:00,386 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-14 16:45:00,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1456168982, now seen corresponding path program 1 times [2024-10-14 16:45:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828596388] [2024-10-14 16:45:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:00,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:00,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828596388] [2024-10-14 16:45:00,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828596388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:00,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:00,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:45:00,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272921256] [2024-10-14 16:45:00,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:00,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:45:00,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:45:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:45:00,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 479 [2024-10-14 16:45:00,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 479 transitions, 976 flow. Second operand has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:00,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:00,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 479 [2024-10-14 16:45:00,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:01,034 INFO L124 PetriNetUnfolderBase]: 372/4861 cut-off events. [2024-10-14 16:45:01,035 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-10-14 16:45:01,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5358 conditions, 4861 events. 372/4861 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 47213 event pairs, 220 based on Foata normal form. 743/5045 useless extension candidates. Maximal degree in co-relation 4236. Up to 376 conditions per place. [2024-10-14 16:45:01,078 INFO L140 encePairwiseOnDemand]: 414/479 looper letters, 15 selfloop transitions, 0 changer transitions 0/390 dead transitions. [2024-10-14 16:45:01,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 390 transitions, 828 flow [2024-10-14 16:45:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:45:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:45:01,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 860 transitions. [2024-10-14 16:45:01,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977035490605428 [2024-10-14 16:45:01,081 INFO L175 Difference]: Start difference. First operand has 440 places, 479 transitions, 976 flow. Second operand 2 states and 860 transitions. [2024-10-14 16:45:01,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 390 transitions, 828 flow [2024-10-14 16:45:01,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 390 transitions, 826 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:01,087 INFO L231 Difference]: Finished difference. Result has 386 places, 390 transitions, 796 flow [2024-10-14 16:45:01,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=796, PETRI_PLACES=386, PETRI_TRANSITIONS=390} [2024-10-14 16:45:01,090 INFO L277 CegarLoopForPetriNet]: 440 programPoint places, -54 predicate places. [2024-10-14 16:45:01,090 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 390 transitions, 796 flow [2024-10-14 16:45:01,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:01,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:01,090 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] [2024-10-14 16:45:01,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:45:01,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-14 16:45:01,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash 781000141, now seen corresponding path program 1 times [2024-10-14 16:45:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:01,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491082953] [2024-10-14 16:45:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:01,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:01,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491082953] [2024-10-14 16:45:01,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491082953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:01,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:01,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:45:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275216954] [2024-10-14 16:45:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:01,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:01,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:01,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:45:01,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 479 [2024-10-14 16:45:01,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 390 transitions, 796 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:01,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:01,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 479 [2024-10-14 16:45:01,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:03,285 INFO L124 PetriNetUnfolderBase]: 2035/18246 cut-off events. [2024-10-14 16:45:03,285 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2024-10-14 16:45:03,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 18246 events. 2035/18246 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 237658 event pairs, 595 based on Foata normal form. 0/16218 useless extension candidates. Maximal degree in co-relation 20977. Up to 1412 conditions per place. [2024-10-14 16:45:03,393 INFO L140 encePairwiseOnDemand]: 467/479 looper letters, 41 selfloop transitions, 9 changer transitions 0/413 dead transitions. [2024-10-14 16:45:03,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 413 transitions, 952 flow [2024-10-14 16:45:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2024-10-14 16:45:03,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.826026443980515 [2024-10-14 16:45:03,397 INFO L175 Difference]: Start difference. First operand has 386 places, 390 transitions, 796 flow. Second operand 3 states and 1187 transitions. [2024-10-14 16:45:03,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 413 transitions, 952 flow [2024-10-14 16:45:03,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 413 transitions, 952 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:03,402 INFO L231 Difference]: Finished difference. Result has 390 places, 399 transitions, 874 flow [2024-10-14 16:45:03,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=390, PETRI_TRANSITIONS=399} [2024-10-14 16:45:03,403 INFO L277 CegarLoopForPetriNet]: 440 programPoint places, -50 predicate places. [2024-10-14 16:45:03,403 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 399 transitions, 874 flow [2024-10-14 16:45:03,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:03,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:03,404 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] [2024-10-14 16:45:03,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 16:45:03,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-14 16:45:03,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1791286082, now seen corresponding path program 1 times [2024-10-14 16:45:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564795160] [2024-10-14 16:45:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:03,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564795160] [2024-10-14 16:45:03,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564795160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:03,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:03,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130128853] [2024-10-14 16:45:03,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:03,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:03,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:03,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:03,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:03,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 479 [2024-10-14 16:45:03,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 399 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 328.6666666666667) internal successors, (1972), 6 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:45:03,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:03,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 479 [2024-10-14 16:45:03,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:34,394 INFO L124 PetriNetUnfolderBase]: 88596/302249 cut-off events. [2024-10-14 16:45:34,395 INFO L125 PetriNetUnfolderBase]: For 4664/4669 co-relation queries the response was YES. [2024-10-14 16:45:35,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437654 conditions, 302249 events. 88596/302249 cut-off events. For 4664/4669 co-relation queries the response was YES. Maximal size of possible extension queue 4524. Compared 4845988 event pairs, 52011 based on Foata normal form. 0/277048 useless extension candidates. Maximal degree in co-relation 437646. Up to 102787 conditions per place.