./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/35_double_lock_p3_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d 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/35_double_lock_p3_vs.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 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:32:46,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:32:46,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:32:46,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:32:46,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:32:46,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:32:46,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:32:46,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:32:46,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:32:46,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:32:46,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:32:46,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:32:46,937 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:32:46,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:32:46,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:32:46,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:32:46,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:32:46,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:32:46,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:32:46,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:32:46,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:32:46,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:32:46,941 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:32:46,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:32:46,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:32:46,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:32:46,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:32:46,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:32:46,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:32:46,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:32:46,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:32:46,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:32:46,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:32:46,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:32:46,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:32:46,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:32:46,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:32:46,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:32:46,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:32:46,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:32:46,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:32:46,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd [2024-10-13 09:32:47,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:32:47,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:32:47,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:32:47,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:32:47,244 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:32:47,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2024-10-13 09:32:48,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:32:49,069 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:32:49,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2024-10-13 09:32:49,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a515716/4780600ca12f4ac1b1e51bf781267a73/FLAGd87fb1086 [2024-10-13 09:32:49,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a515716/4780600ca12f4ac1b1e51bf781267a73 [2024-10-13 09:32:49,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:32:49,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:32:49,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:32:49,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:32:49,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:32:49,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec1e551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49, skipping insertion in model container [2024-10-13 09:32:49,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:32:49,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:32:49,572 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:32:49,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:32:49,677 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:32:49,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49 WrapperNode [2024-10-13 09:32:49,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:32:49,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:32:49,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:32:49,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:32:49,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,762 INFO L138 Inliner]: procedures = 171, calls = 24, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 223 [2024-10-13 09:32:49,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:32:49,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:32:49,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:32:49,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:32:49,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:32:49,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:32:49,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:32:49,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:32:49,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (1/1) ... [2024-10-13 09:32:49,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:32:49,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:32:49,862 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) [2024-10-13 09:32:49,865 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 [2024-10-13 09:32:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:32:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-10-13 09:32:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-10-13 09:32:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-13 09:32:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-13 09:32:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:32:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:32:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:32:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:32:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:32:49,920 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:32:50,087 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:32:50,089 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:32:50,482 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:32:50,482 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:32:50,792 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:32:50,793 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:32:50,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:50 BoogieIcfgContainer [2024-10-13 09:32:50,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:32:50,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:32:50,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:32:50,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:32:50,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:32:49" (1/3) ... [2024-10-13 09:32:50,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:50, skipping insertion in model container [2024-10-13 09:32:50,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:49" (2/3) ... [2024-10-13 09:32:50,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:50, skipping insertion in model container [2024-10-13 09:32:50,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:50" (3/3) ... [2024-10-13 09:32:50,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 35_double_lock_p3_vs.i [2024-10-13 09:32:50,823 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:32:50,823 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-10-13 09:32:50,824 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:32:50,945 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:32:51,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 124 transitions, 256 flow [2024-10-13 09:32:51,067 INFO L124 PetriNetUnfolderBase]: 7/132 cut-off events. [2024-10-13 09:32:51,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:51,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 132 events. 7/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 181 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2024-10-13 09:32:51,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 124 transitions, 256 flow [2024-10-13 09:32:51,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 123 transitions, 253 flow [2024-10-13 09:32:51,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:32:51,103 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;@50d560d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:32:51,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-13 09:32:51,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:32:51,116 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:32:51,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:51,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:51,118 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] [2024-10-13 09:32:51,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-13 09:32:51,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1967403384, now seen corresponding path program 1 times [2024-10-13 09:32:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:51,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566052109] [2024-10-13 09:32:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:51,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566052109] [2024-10-13 09:32:51,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566052109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:51,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:51,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:32:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466867778] [2024-10-13 09:32:51,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:51,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:32:51,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:51,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:32:51,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:32:51,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2024-10-13 09:32:51,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 123 transitions, 253 flow. Second operand has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2024-10-13 09:32:51,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:51,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2024-10-13 09:32:51,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:32:51,780 INFO L124 PetriNetUnfolderBase]: 16/200 cut-off events. [2024-10-13 09:32:51,780 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 09:32:51,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 200 events. 16/200 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 445 event pairs, 9 based on Foata normal form. 38/208 useless extension candidates. Maximal degree in co-relation 217. Up to 33 conditions per place. [2024-10-13 09:32:51,784 INFO L140 encePairwiseOnDemand]: 106/124 looper letters, 8 selfloop transitions, 0 changer transitions 0/98 dead transitions. [2024-10-13 09:32:51,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 219 flow [2024-10-13 09:32:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:32:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:32:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2024-10-13 09:32:51,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2024-10-13 09:32:51,801 INFO L175 Difference]: Start difference. First operand has 123 places, 123 transitions, 253 flow. Second operand 2 states and 220 transitions. [2024-10-13 09:32:51,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 219 flow [2024-10-13 09:32:51,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:32:51,807 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 202 flow [2024-10-13 09:32:51,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=202, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2024-10-13 09:32:51,813 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -21 predicate places. [2024-10-13 09:32:51,813 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 202 flow [2024-10-13 09:32:51,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2024-10-13 09:32:51,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:51,813 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] [2024-10-13 09:32:51,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:32:51,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-13 09:32:51,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -889016692, now seen corresponding path program 1 times [2024-10-13 09:32:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191923918] [2024-10-13 09:32:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:51,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:51,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191923918] [2024-10-13 09:32:51,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191923918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:51,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:51,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:32:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198900853] [2024-10-13 09:32:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:51,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:32:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:32:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:32:51,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 124 [2024-10-13 09:32:51,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-10-13 09:32:51,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:51,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 124 [2024-10-13 09:32:51,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:32:52,083 INFO L124 PetriNetUnfolderBase]: 120/535 cut-off events. [2024-10-13 09:32:52,083 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 09:32:52,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 535 events. 120/535 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2347 event pairs, 37 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 802. Up to 176 conditions per place. [2024-10-13 09:32:52,089 INFO L140 encePairwiseOnDemand]: 109/124 looper letters, 26 selfloop transitions, 10 changer transitions 0/107 dead transitions. [2024-10-13 09:32:52,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 295 flow [2024-10-13 09:32:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:32:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:32:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-10-13 09:32:52,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.739247311827957 [2024-10-13 09:32:52,096 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 202 flow. Second operand 3 states and 275 transitions. [2024-10-13 09:32:52,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 295 flow [2024-10-13 09:32:52,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 107 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:32:52,100 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 260 flow [2024-10-13 09:32:52,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2024-10-13 09:32:52,102 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -21 predicate places. [2024-10-13 09:32:52,104 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 260 flow [2024-10-13 09:32:52,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-10-13 09:32:52,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:52,105 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] [2024-10-13 09:32:52,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:32:52,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-13 09:32:52,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash -210831037, now seen corresponding path program 1 times [2024-10-13 09:32:52,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:52,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271555921] [2024-10-13 09:32:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:52,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:52,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:32:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:52,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:32:52,170 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:32:52,171 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-10-13 09:32:52,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-10-13 09:32:52,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-10-13 09:32:52,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-10-13 09:32:52,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-10-13 09:32:52,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-10-13 09:32:52,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-10-13 09:32:52,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-10-13 09:32:52,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-10-13 09:32:52,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-10-13 09:32:52,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-10-13 09:32:52,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-10-13 09:32:52,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-10-13 09:32:52,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-10-13 09:32:52,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-10-13 09:32:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-10-13 09:32:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-10-13 09:32:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-10-13 09:32:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-10-13 09:32:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-10-13 09:32:52,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-10-13 09:32:52,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-10-13 09:32:52,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 44 remaining) [2024-10-13 09:32:52,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-10-13 09:32:52,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-10-13 09:32:52,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-10-13 09:32:52,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-10-13 09:32:52,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-10-13 09:32:52,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-10-13 09:32:52,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-10-13 09:32:52,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-10-13 09:32:52,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-10-13 09:32:52,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-10-13 09:32:52,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-10-13 09:32:52,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-10-13 09:32:52,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-10-13 09:32:52,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-10-13 09:32:52,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-10-13 09:32:52,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-10-13 09:32:52,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-10-13 09:32:52,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-10-13 09:32:52,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-10-13 09:32:52,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-10-13 09:32:52,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-10-13 09:32:52,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:32:52,189 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:32:52,194 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:32:52,194 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:32:52,283 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:32:52,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 216 transitions, 452 flow [2024-10-13 09:32:52,337 INFO L124 PetriNetUnfolderBase]: 9/211 cut-off events. [2024-10-13 09:32:52,337 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:32:52,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 211 events. 9/211 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 431 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 218. Up to 6 conditions per place. [2024-10-13 09:32:52,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 216 transitions, 452 flow [2024-10-13 09:32:52,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 191 transitions, 395 flow [2024-10-13 09:32:52,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:32:52,353 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;@50d560d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:32:52,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-13 09:32:52,356 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:32:52,358 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:32:52,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:52,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:52,358 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] [2024-10-13 09:32:52,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:32:52,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash 541238024, now seen corresponding path program 1 times [2024-10-13 09:32:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711940796] [2024-10-13 09:32:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:52,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:52,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711940796] [2024-10-13 09:32:52,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711940796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:52,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:52,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:32:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924384527] [2024-10-13 09:32:52,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:52,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:32:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:52,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:32:52,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:32:52,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 216 [2024-10-13 09:32:52,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 191 transitions, 395 flow. Second operand has 2 states, 2 states have (on average 165.0) internal successors, (330), 2 states have internal predecessors, (330), 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) [2024-10-13 09:32:52,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:52,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 216 [2024-10-13 09:32:52,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:32:52,836 INFO L124 PetriNetUnfolderBase]: 152/1268 cut-off events. [2024-10-13 09:32:52,837 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-10-13 09:32:52,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1268 events. 152/1268 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8360 event pairs, 119 based on Foata normal form. 211/1292 useless extension candidates. Maximal degree in co-relation 1540. Up to 243 conditions per place. [2024-10-13 09:32:52,855 INFO L140 encePairwiseOnDemand]: 190/216 looper letters, 13 selfloop transitions, 0 changer transitions 0/158 dead transitions. [2024-10-13 09:32:52,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 355 flow [2024-10-13 09:32:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:32:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:32:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 367 transitions. [2024-10-13 09:32:52,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8495370370370371 [2024-10-13 09:32:52,859 INFO L175 Difference]: Start difference. First operand has 192 places, 191 transitions, 395 flow. Second operand 2 states and 367 transitions. [2024-10-13 09:32:52,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 355 flow [2024-10-13 09:32:52,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 158 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:32:52,863 INFO L231 Difference]: Finished difference. Result has 163 places, 158 transitions, 328 flow [2024-10-13 09:32:52,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=328, PETRI_PLACES=163, PETRI_TRANSITIONS=158} [2024-10-13 09:32:52,864 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -29 predicate places. [2024-10-13 09:32:52,864 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 158 transitions, 328 flow [2024-10-13 09:32:52,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 165.0) internal successors, (330), 2 states have internal predecessors, (330), 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) [2024-10-13 09:32:52,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:52,865 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] [2024-10-13 09:32:52,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:32:52,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:32:52,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash 438732396, now seen corresponding path program 1 times [2024-10-13 09:32:52,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:52,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455625072] [2024-10-13 09:32:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:52,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:52,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:52,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455625072] [2024-10-13 09:32:52,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455625072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:52,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:52,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:32:52,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619942421] [2024-10-13 09:32:52,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:52,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:32:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:32:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:32:52,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 216 [2024-10-13 09:32:52,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 158 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-10-13 09:32:52,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:52,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 216 [2024-10-13 09:32:52,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:32:55,443 INFO L124 PetriNetUnfolderBase]: 6141/16066 cut-off events. [2024-10-13 09:32:55,443 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2024-10-13 09:32:55,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26292 conditions, 16066 events. 6141/16066 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 156218 event pairs, 2047 based on Foata normal form. 0/14085 useless extension candidates. Maximal degree in co-relation 26287. Up to 6244 conditions per place. [2024-10-13 09:32:55,621 INFO L140 encePairwiseOnDemand]: 181/216 looper letters, 60 selfloop transitions, 26 changer transitions 0/196 dead transitions. [2024-10-13 09:32:55,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 196 transitions, 584 flow [2024-10-13 09:32:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:32:55,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:32:55,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-10-13 09:32:55,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7299382716049383 [2024-10-13 09:32:55,624 INFO L175 Difference]: Start difference. First operand has 163 places, 158 transitions, 328 flow. Second operand 3 states and 473 transitions. [2024-10-13 09:32:55,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 196 transitions, 584 flow [2024-10-13 09:32:55,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 196 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:32:55,628 INFO L231 Difference]: Finished difference. Result has 167 places, 184 transitions, 554 flow [2024-10-13 09:32:55,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=167, PETRI_TRANSITIONS=184} [2024-10-13 09:32:55,630 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -25 predicate places. [2024-10-13 09:32:55,630 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 184 transitions, 554 flow [2024-10-13 09:32:55,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-10-13 09:32:55,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:55,631 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] [2024-10-13 09:32:55,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:32:55,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:32:55,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:55,634 INFO L85 PathProgramCache]: Analyzing trace with hash 570557385, now seen corresponding path program 1 times [2024-10-13 09:32:55,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:55,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697487618] [2024-10-13 09:32:55,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:55,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:55,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:32:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:55,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:32:55,674 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:32:55,674 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-10-13 09:32:55,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-10-13 09:32:55,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-10-13 09:32:55,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-10-13 09:32:55,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-10-13 09:32:55,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-10-13 09:32:55,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-10-13 09:32:55,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 65 remaining) [2024-10-13 09:32:55,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-10-13 09:32:55,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-10-13 09:32:55,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-10-13 09:32:55,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-10-13 09:32:55,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-10-13 09:32:55,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-10-13 09:32:55,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-10-13 09:32:55,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-10-13 09:32:55,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-10-13 09:32:55,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-10-13 09:32:55,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-10-13 09:32:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-10-13 09:32:55,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-10-13 09:32:55,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-10-13 09:32:55,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-10-13 09:32:55,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:32:55,687 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:32:55,688 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:32:55,688 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 09:32:55,799 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:32:55,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 308 transitions, 652 flow [2024-10-13 09:32:55,946 INFO L124 PetriNetUnfolderBase]: 11/290 cut-off events. [2024-10-13 09:32:55,947 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 09:32:55,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 290 events. 11/290 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 791 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 301. Up to 8 conditions per place. [2024-10-13 09:32:55,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 308 transitions, 652 flow [2024-10-13 09:32:55,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 259 transitions, 539 flow [2024-10-13 09:32:55,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:32:55,963 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;@50d560d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:32:55,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2024-10-13 09:32:55,967 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:32:55,968 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:32:55,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:55,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:55,969 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] [2024-10-13 09:32:55,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2024-10-13 09:32:55,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1768481253, now seen corresponding path program 1 times [2024-10-13 09:32:55,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:55,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382286855] [2024-10-13 09:32:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:55,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:56,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382286855] [2024-10-13 09:32:56,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382286855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:56,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:56,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:32:56,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304991435] [2024-10-13 09:32:56,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:56,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:32:56,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:32:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:32:56,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 308 [2024-10-13 09:32:56,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 259 transitions, 539 flow. Second operand has 2 states, 2 states have (on average 232.0) internal successors, (464), 2 states have internal predecessors, (464), 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) [2024-10-13 09:32:56,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:56,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 308 [2024-10-13 09:32:56,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:32:57,633 INFO L124 PetriNetUnfolderBase]: 1128/7145 cut-off events. [2024-10-13 09:32:57,634 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2024-10-13 09:32:57,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9094 conditions, 7145 events. 1128/7145 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 74469 event pairs, 969 based on Foata normal form. 1084/7214 useless extension candidates. Maximal degree in co-relation 9067. Up to 1593 conditions per place. [2024-10-13 09:32:57,709 INFO L140 encePairwiseOnDemand]: 274/308 looper letters, 18 selfloop transitions, 0 changer transitions 0/218 dead transitions. [2024-10-13 09:32:57,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 218 transitions, 493 flow [2024-10-13 09:32:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:32:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:32:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 514 transitions. [2024-10-13 09:32:57,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8344155844155844 [2024-10-13 09:32:57,712 INFO L175 Difference]: Start difference. First operand has 261 places, 259 transitions, 539 flow. Second operand 2 states and 514 transitions. [2024-10-13 09:32:57,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 218 transitions, 493 flow [2024-10-13 09:32:57,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 490 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-13 09:32:57,721 INFO L231 Difference]: Finished difference. Result has 224 places, 218 transitions, 454 flow [2024-10-13 09:32:57,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=224, PETRI_TRANSITIONS=218} [2024-10-13 09:32:57,723 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -37 predicate places. [2024-10-13 09:32:57,723 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 218 transitions, 454 flow [2024-10-13 09:32:57,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 232.0) internal successors, (464), 2 states have internal predecessors, (464), 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) [2024-10-13 09:32:57,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:57,724 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] [2024-10-13 09:32:57,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:32:57,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2024-10-13 09:32:57,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1296611967, now seen corresponding path program 1 times [2024-10-13 09:32:57,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:57,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804381333] [2024-10-13 09:32:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:32:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:32:57,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:32:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804381333] [2024-10-13 09:32:57,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804381333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:32:57,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:32:57,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:32:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320166405] [2024-10-13 09:32:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:32:57,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:32:57,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:32:57,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:32:57,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:32:57,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 308 [2024-10-13 09:32:57,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 218 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2024-10-13 09:32:57,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:32:57,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 308 [2024-10-13 09:32:57,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand