./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:00:42,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:00:42,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:00:42,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:00:42,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:00:42,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:00:42,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:00:42,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:00:42,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:00:42,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:00:42,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:00:42,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:00:42,892 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:00:42,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:00:42,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:00:42,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:00:42,894 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:00:42,894 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:00:42,894 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:00:42,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:00:42,896 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:00:42,896 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:00:42,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:00:42,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:00:42,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:42,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:00:42,897 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30 [2025-02-06 09:00:43,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:00:43,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:00:43,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:00:43,111 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:00:43,111 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:00:43,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2025-02-06 09:00:44,351 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b5302773/e88819456bb04977afd21e7365a00b38/FLAGe06c7e708 [2025-02-06 09:00:44,675 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:00:44,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2025-02-06 09:00:44,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b5302773/e88819456bb04977afd21e7365a00b38/FLAGe06c7e708 [2025-02-06 09:00:44,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b5302773/e88819456bb04977afd21e7365a00b38 [2025-02-06 09:00:44,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:00:44,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:00:44,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:44,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:00:44,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:00:44,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:44" (1/1) ... [2025-02-06 09:00:44,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f809624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:44, skipping insertion in model container [2025-02-06 09:00:44,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:44" (1/1) ... [2025-02-06 09:00:44,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:00:45,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:45,224 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:00:45,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:45,303 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:00:45,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45 WrapperNode [2025-02-06 09:00:45,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:45,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:45,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:00:45,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:00:45,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,356 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 201 [2025-02-06 09:00:45,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:45,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:00:45,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:00:45,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:00:45,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,384 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:00:45,389 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:00:45,389 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:00:45,390 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:00:45,390 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (1/1) ... [2025-02-06 09:00:45,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:45,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:00:45,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:00:45,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 09:00:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:00:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:00:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:00:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:00:45,447 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:00:45,527 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:00:45,529 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:00:45,817 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:00:45,817 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:00:45,903 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:00:45,904 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:00:45,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:45 BoogieIcfgContainer [2025-02-06 09:00:45,905 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:00:45,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:00:45,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:00:45,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:00:45,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:00:44" (1/3) ... [2025-02-06 09:00:45,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f516568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:45, skipping insertion in model container [2025-02-06 09:00:45,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:45" (2/3) ... [2025-02-06 09:00:45,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f516568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:45, skipping insertion in model container [2025-02-06 09:00:45,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:45" (3/3) ... [2025-02-06 09:00:45,913 INFO L128 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2025-02-06 09:00:45,923 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:00:45,925 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 37_stack_lock_p0_vs_concur.i that has 2 procedures, 194 locations, 1 initial locations, 2 loop locations, and 15 error locations. [2025-02-06 09:00:45,925 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:00:45,979 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:46,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 199 transitions, 402 flow [2025-02-06 09:00:46,087 INFO L124 PetriNetUnfolderBase]: 5/206 cut-off events. [2025-02-06 09:00:46,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:46,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 206 events. 5/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 162 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2025-02-06 09:00:46,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 199 transitions, 402 flow [2025-02-06 09:00:46,101 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 199 transitions, 402 flow [2025-02-06 09:00:46,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:46,116 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;@3deed576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:46,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-02-06 09:00:46,137 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:46,137 INFO L124 PetriNetUnfolderBase]: 0/107 cut-off events. [2025-02-06 09:00:46,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:46,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:46,138 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:46,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:00:46,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1111552891, now seen corresponding path program 1 times [2025-02-06 09:00:46,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:46,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321886817] [2025-02-06 09:00:46,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:46,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:46,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:00:46,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:00:46,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:46,296 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:46,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:00:46,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:00:46,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:46,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:46,383 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:46,384 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-02-06 09:00:46,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-02-06 09:00:46,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-02-06 09:00:46,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-02-06 09:00:46,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-02-06 09:00:46,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-02-06 09:00:46,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-02-06 09:00:46,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-02-06 09:00:46,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-02-06 09:00:46,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-02-06 09:00:46,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:00:46,391 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 09:00:46,393 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:46,397 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:00:46,448 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:46,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 305 transitions, 620 flow [2025-02-06 09:00:46,558 INFO L124 PetriNetUnfolderBase]: 10/321 cut-off events. [2025-02-06 09:00:46,558 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 09:00:46,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 321 events. 10/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 640 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. [2025-02-06 09:00:46,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 305 transitions, 620 flow [2025-02-06 09:00:46,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 305 transitions, 620 flow [2025-02-06 09:00:46,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:46,573 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;@3deed576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:46,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-02-06 09:00:46,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:46,590 INFO L124 PetriNetUnfolderBase]: 0/116 cut-off events. [2025-02-06 09:00:46,590 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:46,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:46,590 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:46,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:00:46,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash -425568880, now seen corresponding path program 1 times [2025-02-06 09:00:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91323863] [2025-02-06 09:00:46,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:46,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:46,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-06 09:00:46,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:00:46,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:46,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:46,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91323863] [2025-02-06 09:00:46,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91323863] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:46,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:46,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:46,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063668488] [2025-02-06 09:00:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:46,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:46,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:46,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:46,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 305 [2025-02-06 09:00:46,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 305 transitions, 620 flow. Second operand has 2 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 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) [2025-02-06 09:00:46,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:46,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 305 [2025-02-06 09:00:46,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:46,961 INFO L124 PetriNetUnfolderBase]: 44/801 cut-off events. [2025-02-06 09:00:46,962 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-06 09:00:46,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 801 events. 44/801 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4046 event pairs, 30 based on Foata normal form. 93/803 useless extension candidates. Maximal degree in co-relation 191. Up to 73 conditions per place. [2025-02-06 09:00:46,971 INFO L140 encePairwiseOnDemand]: 284/305 looper letters, 12 selfloop transitions, 0 changer transitions 0/273 dead transitions. [2025-02-06 09:00:46,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 273 transitions, 580 flow [2025-02-06 09:00:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:46,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 573 transitions. [2025-02-06 09:00:46,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9393442622950819 [2025-02-06 09:00:46,985 INFO L175 Difference]: Start difference. First operand has 300 places, 305 transitions, 620 flow. Second operand 2 states and 573 transitions. [2025-02-06 09:00:46,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 273 transitions, 580 flow [2025-02-06 09:00:46,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 273 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:46,995 INFO L231 Difference]: Finished difference. Result has 275 places, 273 transitions, 556 flow [2025-02-06 09:00:46,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=556, PETRI_PLACES=275, PETRI_TRANSITIONS=273} [2025-02-06 09:00:47,000 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, -25 predicate places. [2025-02-06 09:00:47,000 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 273 transitions, 556 flow [2025-02-06 09:00:47,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 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) [2025-02-06 09:00:47,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:47,003 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:47,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:00:47,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:00:47,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash 775333927, now seen corresponding path program 1 times [2025-02-06 09:00:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:47,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549871659] [2025-02-06 09:00:47,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:47,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-06 09:00:47,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 09:00:47,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:47,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:47,059 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:47,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-06 09:00:47,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 09:00:47,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:47,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:47,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:47,109 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-02-06 09:00:47,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-02-06 09:00:47,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-02-06 09:00:47,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-02-06 09:00:47,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-02-06 09:00:47,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:00:47,112 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 09:00:47,115 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:47,115 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 09:00:47,185 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:47,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 411 transitions, 840 flow [2025-02-06 09:00:47,260 INFO L124 PetriNetUnfolderBase]: 15/436 cut-off events. [2025-02-06 09:00:47,260 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 09:00:47,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 436 events. 15/436 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1280 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 325. Up to 4 conditions per place. [2025-02-06 09:00:47,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 411 transitions, 840 flow [2025-02-06 09:00:47,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 411 transitions, 840 flow [2025-02-06 09:00:47,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:47,274 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;@3deed576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:47,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-02-06 09:00:47,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:47,295 INFO L124 PetriNetUnfolderBase]: 0/116 cut-off events. [2025-02-06 09:00:47,295 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:47,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:47,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:47,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:00:47,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1839586292, now seen corresponding path program 1 times [2025-02-06 09:00:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:47,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197662874] [2025-02-06 09:00:47,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:47,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:47,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-06 09:00:47,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:00:47,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:47,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:47,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:47,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197662874] [2025-02-06 09:00:47,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197662874] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:47,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:47,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:47,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013179073] [2025-02-06 09:00:47,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:47,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:47,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:47,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:47,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:47,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 411 [2025-02-06 09:00:47,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 411 transitions, 840 flow. Second operand has 2 states, 2 states have (on average 360.0) internal successors, (720), 2 states have internal predecessors, (720), 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) [2025-02-06 09:00:47,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:47,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 411 [2025-02-06 09:00:47,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:48,047 INFO L124 PetriNetUnfolderBase]: 476/4683 cut-off events. [2025-02-06 09:00:48,048 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2025-02-06 09:00:48,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5500 conditions, 4683 events. 476/4683 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 46216 event pairs, 390 based on Foata normal form. 728/4838 useless extension candidates. Maximal degree in co-relation 887. Up to 649 conditions per place. [2025-02-06 09:00:48,090 INFO L140 encePairwiseOnDemand]: 380/411 looper letters, 18 selfloop transitions, 0 changer transitions 0/365 dead transitions. [2025-02-06 09:00:48,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 365 transitions, 784 flow [2025-02-06 09:00:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 767 transitions. [2025-02-06 09:00:48,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9330900243309003 [2025-02-06 09:00:48,095 INFO L175 Difference]: Start difference. First operand has 403 places, 411 transitions, 840 flow. Second operand 2 states and 767 transitions. [2025-02-06 09:00:48,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 365 transitions, 784 flow [2025-02-06 09:00:48,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 365 transitions, 782 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:48,104 INFO L231 Difference]: Finished difference. Result has 367 places, 365 transitions, 746 flow [2025-02-06 09:00:48,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=746, PETRI_PLACES=367, PETRI_TRANSITIONS=365} [2025-02-06 09:00:48,105 INFO L279 CegarLoopForPetriNet]: 403 programPoint places, -36 predicate places. [2025-02-06 09:00:48,105 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 365 transitions, 746 flow [2025-02-06 09:00:48,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 360.0) internal successors, (720), 2 states have internal predecessors, (720), 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) [2025-02-06 09:00:48,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:48,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:48,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:00:48,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:00:48,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1739133794, now seen corresponding path program 1 times [2025-02-06 09:00:48,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018783340] [2025-02-06 09:00:48,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:48,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-06 09:00:48,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-06 09:00:48,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:48,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:48,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:48,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018783340] [2025-02-06 09:00:48,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018783340] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:48,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:48,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:48,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101173952] [2025-02-06 09:00:48,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:48,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:48,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:48,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:48,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:49,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 411 [2025-02-06 09:00:49,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 365 transitions, 746 flow. Second operand has 6 states, 6 states have (on average 332.5) internal successors, (1995), 6 states have internal predecessors, (1995), 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) [2025-02-06 09:00:49,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:49,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 411 [2025-02-06 09:00:49,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:52,703 INFO L124 PetriNetUnfolderBase]: 5059/27341 cut-off events. [2025-02-06 09:00:52,703 INFO L125 PetriNetUnfolderBase]: For 1234/1234 co-relation queries the response was YES. [2025-02-06 09:00:52,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35979 conditions, 27341 events. 5059/27341 cut-off events. For 1234/1234 co-relation queries the response was YES. Maximal size of possible extension queue 776. Compared 383144 event pairs, 1447 based on Foata normal form. 0/23958 useless extension candidates. Maximal degree in co-relation 35973. Up to 4079 conditions per place. [2025-02-06 09:00:52,906 INFO L140 encePairwiseOnDemand]: 384/411 looper letters, 96 selfloop transitions, 29 changer transitions 0/444 dead transitions. [2025-02-06 09:00:52,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 444 transitions, 1194 flow [2025-02-06 09:00:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:00:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:00:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2115 transitions. [2025-02-06 09:00:52,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8576642335766423 [2025-02-06 09:00:52,909 INFO L175 Difference]: Start difference. First operand has 367 places, 365 transitions, 746 flow. Second operand 6 states and 2115 transitions. [2025-02-06 09:00:52,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 444 transitions, 1194 flow [2025-02-06 09:00:52,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 444 transitions, 1194 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:52,930 INFO L231 Difference]: Finished difference. Result has 377 places, 393 transitions, 970 flow [2025-02-06 09:00:52,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=970, PETRI_PLACES=377, PETRI_TRANSITIONS=393} [2025-02-06 09:00:52,931 INFO L279 CegarLoopForPetriNet]: 403 programPoint places, -26 predicate places. [2025-02-06 09:00:52,931 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 393 transitions, 970 flow [2025-02-06 09:00:52,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 332.5) internal successors, (1995), 6 states have internal predecessors, (1995), 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) [2025-02-06 09:00:52,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:52,934 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:52,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:00:52,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:00:52,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:52,934 INFO L85 PathProgramCache]: Analyzing trace with hash 820742534, now seen corresponding path program 1 times [2025-02-06 09:00:52,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:52,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87483218] [2025-02-06 09:00:52,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:52,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:52,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 09:00:52,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 09:00:52,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:52,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:52,971 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:52,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 09:00:52,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 09:00:52,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:52,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:53,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:53,014 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-02-06 09:00:53,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-02-06 09:00:53,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-02-06 09:00:53,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-02-06 09:00:53,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-02-06 09:00:53,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-02-06 09:00:53,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:00:53,019 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:00:53,019 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:53,019 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 09:00:53,089 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:53,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 506 places, 517 transitions, 1062 flow [2025-02-06 09:00:53,148 INFO L124 PetriNetUnfolderBase]: 20/551 cut-off events. [2025-02-06 09:00:53,148 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 09:00:53,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 551 events. 20/551 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1989 event pairs, 0 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 444. Up to 5 conditions per place. [2025-02-06 09:00:53,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 506 places, 517 transitions, 1062 flow [2025-02-06 09:00:53,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 506 places, 517 transitions, 1062 flow [2025-02-06 09:00:53,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:53,171 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;@3deed576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:53,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-02-06 09:00:53,177 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:53,181 INFO L124 PetriNetUnfolderBase]: 0/113 cut-off events. [2025-02-06 09:00:53,181 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:53,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:53,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:53,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-02-06 09:00:53,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1208885378, now seen corresponding path program 1 times [2025-02-06 09:00:53,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:53,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331682321] [2025-02-06 09:00:53,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:53,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:53,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-06 09:00:53,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:00:53,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:53,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:53,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331682321] [2025-02-06 09:00:53,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331682321] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:53,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:53,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:53,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007021220] [2025-02-06 09:00:53,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:53,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:53,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:53,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:53,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 517 [2025-02-06 09:00:53,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 517 transitions, 1062 flow. Second operand has 2 states, 2 states have (on average 449.0) internal successors, (898), 2 states have internal predecessors, (898), 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) [2025-02-06 09:00:53,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:53,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 517 [2025-02-06 09:00:53,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:57,438 INFO L124 PetriNetUnfolderBase]: 4148/29055 cut-off events. [2025-02-06 09:00:57,438 INFO L125 PetriNetUnfolderBase]: For 3691/3691 co-relation queries the response was YES. [2025-02-06 09:00:57,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35489 conditions, 29055 events. 4148/29055 cut-off events. For 3691/3691 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 405730 event pairs, 3630 based on Foata normal form. 5402/30986 useless extension candidates. Maximal degree in co-relation 5459. Up to 5185 conditions per place. [2025-02-06 09:00:57,738 INFO L140 encePairwiseOnDemand]: 476/517 looper letters, 24 selfloop transitions, 0 changer transitions 0/457 dead transitions. [2025-02-06 09:00:57,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 457 transitions, 990 flow [2025-02-06 09:00:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 961 transitions. [2025-02-06 09:00:57,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9294003868471954 [2025-02-06 09:00:57,740 INFO L175 Difference]: Start difference. First operand has 506 places, 517 transitions, 1062 flow. Second operand 2 states and 961 transitions. [2025-02-06 09:00:57,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 457 transitions, 990 flow [2025-02-06 09:00:57,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 457 transitions, 984 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:57,747 INFO L231 Difference]: Finished difference. Result has 459 places, 457 transitions, 936 flow [2025-02-06 09:00:57,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=936, PETRI_PLACES=459, PETRI_TRANSITIONS=457} [2025-02-06 09:00:57,748 INFO L279 CegarLoopForPetriNet]: 506 programPoint places, -47 predicate places. [2025-02-06 09:00:57,748 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 457 transitions, 936 flow [2025-02-06 09:00:57,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 449.0) internal successors, (898), 2 states have internal predecessors, (898), 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) [2025-02-06 09:00:57,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:57,749 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:00:57,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-02-06 09:00:57,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash -856119316, now seen corresponding path program 1 times [2025-02-06 09:00:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280206811] [2025-02-06 09:00:57,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:57,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-06 09:00:57,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-06 09:00:57,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:57,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:58,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280206811] [2025-02-06 09:00:58,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280206811] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:58,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:58,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:58,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623108958] [2025-02-06 09:00:58,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:58,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:58,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:58,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:58,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:58,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 517 [2025-02-06 09:00:58,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 457 transitions, 936 flow. Second operand has 6 states, 6 states have (on average 421.5) internal successors, (2529), 6 states have internal predecessors, (2529), 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) [2025-02-06 09:00:58,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:58,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 517 [2025-02-06 09:00:58,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand