./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:43:47,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:43:47,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:43:47,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:43:47,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:43:47,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:43:47,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:43:47,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:43:47,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:43:47,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:43:47,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:43:47,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:43:47,738 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:43:47,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:43:47,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:43:47,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:43:47,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:47,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:43:47,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:43:47,740 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/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 -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2025-03-04 06:43:47,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:43:47,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:43:47,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:43:47,968 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:43:47,968 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:43:47,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2025-03-04 06:43:49,088 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072c68741/793c225b33fd4ba790167a279937ac00/FLAG6324d93de [2025-03-04 06:43:49,335 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:43:49,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2025-03-04 06:43:49,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072c68741/793c225b33fd4ba790167a279937ac00/FLAG6324d93de [2025-03-04 06:43:49,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/072c68741/793c225b33fd4ba790167a279937ac00 [2025-03-04 06:43:49,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:43:49,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:43:49,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:49,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:43:49,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:43:49,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f54a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49, skipping insertion in model container [2025-03-04 06:43:49,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:43:49,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:49,614 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:43:49,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:49,686 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:43:49,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49 WrapperNode [2025-03-04 06:43:49,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:49,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:49,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:43:49,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:43:49,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,728 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 190 [2025-03-04 06:43:49,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:49,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:43:49,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:43:49,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:43:49,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:43:49,759 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:43:49,759 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:43:49,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:43:49,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (1/1) ... [2025-03-04 06:43:49,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:49,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:43:49,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:43:49,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:43:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:43:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2025-03-04 06:43:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2025-03-04 06:43:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:43:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:43:49,819 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:43:49,917 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:43:49,918 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:43:50,075 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L820: havoc ring_empty_#t~mem15#1; [2025-03-04 06:43:50,075 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L820-1: havoc ring_empty_#t~mem14#1; [2025-03-04 06:43:50,207 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:43:50,207 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:43:50,219 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:43:50,221 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:43:50,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:50 BoogieIcfgContainer [2025-03-04 06:43:50,222 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:43:50,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:43:50,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:43:50,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:43:50,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:43:49" (1/3) ... [2025-03-04 06:43:50,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea55b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:50, skipping insertion in model container [2025-03-04 06:43:50,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:49" (2/3) ... [2025-03-04 06:43:50,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea55b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:50, skipping insertion in model container [2025-03-04 06:43:50,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:50" (3/3) ... [2025-03-04 06:43:50,230 INFO L128 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2025-03-04 06:43:50,241 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:43:50,243 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ring_1w1r-1.i that has 2 procedures, 226 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2025-03-04 06:43:50,244 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:43:50,342 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 06:43:50,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 235 transitions, 477 flow [2025-03-04 06:43:50,459 INFO L124 PetriNetUnfolderBase]: 10/234 cut-off events. [2025-03-04 06:43:50,461 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:50,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 234 events. 10/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 537 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 184. Up to 2 conditions per place. [2025-03-04 06:43:50,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 235 transitions, 477 flow [2025-03-04 06:43:50,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 228 transitions, 459 flow [2025-03-04 06:43:50,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:43:50,492 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;@7185766b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:43:50,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-04 06:43:50,499 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:43:50,499 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2025-03-04 06:43:50,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:43:50,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:50,500 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] [2025-03-04 06:43:50,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:50,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:50,505 INFO L85 PathProgramCache]: Analyzing trace with hash 901856057, now seen corresponding path program 1 times [2025-03-04 06:43:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:50,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980523805] [2025-03-04 06:43:50,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:50,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 06:43:50,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 06:43:50,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:50,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:51,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980523805] [2025-03-04 06:43:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980523805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:51,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:51,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901594698] [2025-03-04 06:43:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:51,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:51,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:51,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:51,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 235 [2025-03-04 06:43:51,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 228 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2025-03-04 06:43:51,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:51,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 235 [2025-03-04 06:43:51,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:51,857 INFO L124 PetriNetUnfolderBase]: 675/3079 cut-off events. [2025-03-04 06:43:51,858 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:51,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4374 conditions, 3079 events. 675/3079 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24220 event pairs, 576 based on Foata normal form. 206/2979 useless extension candidates. Maximal degree in co-relation 4315. Up to 1286 conditions per place. [2025-03-04 06:43:51,876 INFO L140 encePairwiseOnDemand]: 222/235 looper letters, 54 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2025-03-04 06:43:51,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 217 transitions, 555 flow [2025-03-04 06:43:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:51,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1069 transitions. [2025-03-04 06:43:51,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7581560283687944 [2025-03-04 06:43:51,897 INFO L175 Difference]: Start difference. First operand has 222 places, 228 transitions, 459 flow. Second operand 6 states and 1069 transitions. [2025-03-04 06:43:51,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 217 transitions, 555 flow [2025-03-04 06:43:51,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 217 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:43:51,907 INFO L231 Difference]: Finished difference. Result has 222 places, 217 transitions, 446 flow [2025-03-04 06:43:51,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=222, PETRI_TRANSITIONS=217} [2025-03-04 06:43:51,912 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 0 predicate places. [2025-03-04 06:43:51,913 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 217 transitions, 446 flow [2025-03-04 06:43:51,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2025-03-04 06:43:51,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:51,915 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] [2025-03-04 06:43:51,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:43:51,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:51,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1141984178, now seen corresponding path program 1 times [2025-03-04 06:43:51,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:51,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430556386] [2025-03-04 06:43:51,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:51,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:51,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:43:51,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:43:51,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:51,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:52,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:52,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430556386] [2025-03-04 06:43:52,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430556386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:52,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:52,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64769841] [2025-03-04 06:43:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:52,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:52,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:52,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:52,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 235 [2025-03-04 06:43:52,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 217 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2025-03-04 06:43:52,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:52,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 235 [2025-03-04 06:43:52,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:52,782 INFO L124 PetriNetUnfolderBase]: 675/3078 cut-off events. [2025-03-04 06:43:52,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:43:52,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 3078 events. 675/3078 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24315 event pairs, 576 based on Foata normal form. 0/2773 useless extension candidates. Maximal degree in co-relation 4327. Up to 1286 conditions per place. [2025-03-04 06:43:52,794 INFO L140 encePairwiseOnDemand]: 229/235 looper letters, 54 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2025-03-04 06:43:52,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 216 transitions, 562 flow [2025-03-04 06:43:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1062 transitions. [2025-03-04 06:43:52,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7531914893617021 [2025-03-04 06:43:52,797 INFO L175 Difference]: Start difference. First operand has 222 places, 217 transitions, 446 flow. Second operand 6 states and 1062 transitions. [2025-03-04 06:43:52,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 216 transitions, 562 flow [2025-03-04 06:43:52,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 216 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:43:52,803 INFO L231 Difference]: Finished difference. Result has 221 places, 216 transitions, 444 flow [2025-03-04 06:43:52,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=221, PETRI_TRANSITIONS=216} [2025-03-04 06:43:52,805 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2025-03-04 06:43:52,805 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 216 transitions, 444 flow [2025-03-04 06:43:52,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2025-03-04 06:43:52,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:52,806 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] [2025-03-04 06:43:52,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:43:52,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:52,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1467489712, now seen corresponding path program 1 times [2025-03-04 06:43:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:52,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319402529] [2025-03-04 06:43:52,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:52,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:52,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:43:52,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:43:52,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:52,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:53,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:53,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319402529] [2025-03-04 06:43:53,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319402529] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:53,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:53,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972239482] [2025-03-04 06:43:53,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:53,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:53,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:53,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:53,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 235 [2025-03-04 06:43:53,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 216 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2025-03-04 06:43:53,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:53,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 235 [2025-03-04 06:43:53,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:53,703 INFO L124 PetriNetUnfolderBase]: 311/2118 cut-off events. [2025-03-04 06:43:53,704 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:53,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 2118 events. 311/2118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14685 event pairs, 64 based on Foata normal form. 0/1898 useless extension candidates. Maximal degree in co-relation 2665. Up to 452 conditions per place. [2025-03-04 06:43:53,715 INFO L140 encePairwiseOnDemand]: 214/235 looper letters, 39 selfloop transitions, 43 changer transitions 0/261 dead transitions. [2025-03-04 06:43:53,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 261 transitions, 698 flow [2025-03-04 06:43:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2025-03-04 06:43:53,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8680851063829788 [2025-03-04 06:43:53,718 INFO L175 Difference]: Start difference. First operand has 221 places, 216 transitions, 444 flow. Second operand 6 states and 1224 transitions. [2025-03-04 06:43:53,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 261 transitions, 698 flow [2025-03-04 06:43:53,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 261 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:43:53,728 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 730 flow [2025-03-04 06:43:53,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2025-03-04 06:43:53,730 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2025-03-04 06:43:53,730 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 730 flow [2025-03-04 06:43:53,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2025-03-04 06:43:53,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:53,731 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] [2025-03-04 06:43:53,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:43:53,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:53,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:53,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1382232564, now seen corresponding path program 1 times [2025-03-04 06:43:53,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:53,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444677377] [2025-03-04 06:43:53,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:53,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:53,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 06:43:53,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 06:43:53,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:53,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:53,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:53,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444677377] [2025-03-04 06:43:53,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444677377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:53,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:53,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:43:53,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885429548] [2025-03-04 06:43:53,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:53,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:53,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:53,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:53,801 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 235 [2025-03-04 06:43:53,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2025-03-04 06:43:53,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:53,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 235 [2025-03-04 06:43:53,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:53,983 INFO L124 PetriNetUnfolderBase]: 297/2369 cut-off events. [2025-03-04 06:43:53,983 INFO L125 PetriNetUnfolderBase]: For 238/272 co-relation queries the response was YES. [2025-03-04 06:43:53,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2369 events. 297/2369 cut-off events. For 238/272 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 16879 event pairs, 16 based on Foata normal form. 1/2172 useless extension candidates. Maximal degree in co-relation 3412. Up to 342 conditions per place. [2025-03-04 06:43:53,995 INFO L140 encePairwiseOnDemand]: 232/235 looper letters, 3 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2025-03-04 06:43:53,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 259 transitions, 742 flow [2025-03-04 06:43:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2025-03-04 06:43:53,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9574468085106383 [2025-03-04 06:43:53,998 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 730 flow. Second operand 3 states and 675 transitions. [2025-03-04 06:43:53,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 259 transitions, 742 flow [2025-03-04 06:43:54,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 259 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:43:54,005 INFO L231 Difference]: Finished difference. Result has 229 places, 259 transitions, 742 flow [2025-03-04 06:43:54,006 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=229, PETRI_TRANSITIONS=259} [2025-03-04 06:43:54,007 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2025-03-04 06:43:54,007 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 259 transitions, 742 flow [2025-03-04 06:43:54,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2025-03-04 06:43:54,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:54,008 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] [2025-03-04 06:43:54,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:43:54,008 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:54,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:54,009 INFO L85 PathProgramCache]: Analyzing trace with hash -375678616, now seen corresponding path program 1 times [2025-03-04 06:43:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:54,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969641108] [2025-03-04 06:43:54,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:54,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:54,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 06:43:54,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 06:43:54,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:54,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:43:54,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969641108] [2025-03-04 06:43:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969641108] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:54,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:54,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:54,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801489751] [2025-03-04 06:43:54,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:54,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:54,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:54,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:54,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 235 [2025-03-04 06:43:54,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2025-03-04 06:43:54,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:54,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 235 [2025-03-04 06:43:54,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:55,080 INFO L124 PetriNetUnfolderBase]: 780/4989 cut-off events. [2025-03-04 06:43:55,081 INFO L125 PetriNetUnfolderBase]: For 952/1119 co-relation queries the response was YES. [2025-03-04 06:43:55,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8236 conditions, 4989 events. 780/4989 cut-off events. For 952/1119 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 43668 event pairs, 132 based on Foata normal form. 68/4724 useless extension candidates. Maximal degree in co-relation 8174. Up to 1061 conditions per place. [2025-03-04 06:43:55,111 INFO L140 encePairwiseOnDemand]: 211/235 looper letters, 81 selfloop transitions, 45 changer transitions 0/309 dead transitions. [2025-03-04 06:43:55,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 309 transitions, 1154 flow [2025-03-04 06:43:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:55,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2025-03-04 06:43:55,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8425531914893617 [2025-03-04 06:43:55,114 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 742 flow. Second operand 6 states and 1188 transitions. [2025-03-04 06:43:55,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 309 transitions, 1154 flow [2025-03-04 06:43:55,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 309 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:43:55,125 INFO L231 Difference]: Finished difference. Result has 238 places, 303 transitions, 1132 flow [2025-03-04 06:43:55,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=238, PETRI_TRANSITIONS=303} [2025-03-04 06:43:55,130 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 16 predicate places. [2025-03-04 06:43:55,130 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 303 transitions, 1132 flow [2025-03-04 06:43:55,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2025-03-04 06:43:55,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:55,131 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] [2025-03-04 06:43:55,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:43:55,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:55,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:55,131 INFO L85 PathProgramCache]: Analyzing trace with hash -120649481, now seen corresponding path program 1 times [2025-03-04 06:43:55,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:55,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073631321] [2025-03-04 06:43:55,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:55,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:55,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 06:43:55,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 06:43:55,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:55,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:43:55,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073631321] [2025-03-04 06:43:55,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073631321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:55,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:55,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:55,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207012944] [2025-03-04 06:43:55,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:55,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:55,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:55,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:55,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:55,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 235 [2025-03-04 06:43:55,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 303 transitions, 1132 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 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) [2025-03-04 06:43:55,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:55,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 235 [2025-03-04 06:43:55,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:56,514 INFO L124 PetriNetUnfolderBase]: 1088/6751 cut-off events. [2025-03-04 06:43:56,515 INFO L125 PetriNetUnfolderBase]: For 5263/6169 co-relation queries the response was YES. [2025-03-04 06:43:56,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13076 conditions, 6751 events. 1088/6751 cut-off events. For 5263/6169 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 63332 event pairs, 142 based on Foata normal form. 185/6494 useless extension candidates. Maximal degree in co-relation 13010. Up to 1440 conditions per place. [2025-03-04 06:43:56,565 INFO L140 encePairwiseOnDemand]: 220/235 looper letters, 94 selfloop transitions, 78 changer transitions 0/380 dead transitions. [2025-03-04 06:43:56,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 380 transitions, 1934 flow [2025-03-04 06:43:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2025-03-04 06:43:56,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8794326241134752 [2025-03-04 06:43:56,568 INFO L175 Difference]: Start difference. First operand has 238 places, 303 transitions, 1132 flow. Second operand 6 states and 1240 transitions. [2025-03-04 06:43:56,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 380 transitions, 1934 flow [2025-03-04 06:43:56,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 380 transitions, 1934 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:43:56,587 INFO L231 Difference]: Finished difference. Result has 248 places, 380 transitions, 1950 flow [2025-03-04 06:43:56,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1950, PETRI_PLACES=248, PETRI_TRANSITIONS=380} [2025-03-04 06:43:56,590 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 26 predicate places. [2025-03-04 06:43:56,590 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 380 transitions, 1950 flow [2025-03-04 06:43:56,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 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) [2025-03-04 06:43:56,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:56,591 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] [2025-03-04 06:43:56,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:43:56,591 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:56,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1833409638, now seen corresponding path program 1 times [2025-03-04 06:43:56,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:56,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122306552] [2025-03-04 06:43:56,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:56,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:56,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 06:43:56,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 06:43:56,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:56,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:43:56,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:56,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122306552] [2025-03-04 06:43:56,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122306552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:56,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:56,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:56,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864513743] [2025-03-04 06:43:56,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:56,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:56,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:56,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:56,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:57,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 235 [2025-03-04 06:43:57,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 380 transitions, 1950 flow. Second operand has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 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) [2025-03-04 06:43:57,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:57,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 235 [2025-03-04 06:43:57,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:57,942 INFO L124 PetriNetUnfolderBase]: 1203/7402 cut-off events. [2025-03-04 06:43:57,942 INFO L125 PetriNetUnfolderBase]: For 5984/6524 co-relation queries the response was YES. [2025-03-04 06:43:57,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15220 conditions, 7402 events. 1203/7402 cut-off events. For 5984/6524 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 70763 event pairs, 87 based on Foata normal form. 186/7174 useless extension candidates. Maximal degree in co-relation 15149. Up to 1093 conditions per place. [2025-03-04 06:43:57,974 INFO L140 encePairwiseOnDemand]: 224/235 looper letters, 103 selfloop transitions, 66 changer transitions 0/445 dead transitions. [2025-03-04 06:43:57,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 445 transitions, 2720 flow [2025-03-04 06:43:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2025-03-04 06:43:57,977 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8921985815602836 [2025-03-04 06:43:57,977 INFO L175 Difference]: Start difference. First operand has 248 places, 380 transitions, 1950 flow. Second operand 6 states and 1258 transitions. [2025-03-04 06:43:57,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 445 transitions, 2720 flow [2025-03-04 06:43:57,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 445 transitions, 2720 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:43:57,992 INFO L231 Difference]: Finished difference. Result has 258 places, 442 transitions, 2712 flow [2025-03-04 06:43:57,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2712, PETRI_PLACES=258, PETRI_TRANSITIONS=442} [2025-03-04 06:43:57,993 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 36 predicate places. [2025-03-04 06:43:57,993 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 442 transitions, 2712 flow [2025-03-04 06:43:57,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 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) [2025-03-04 06:43:57,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:57,994 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] [2025-03-04 06:43:57,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:43:57,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:43:57,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:57,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1503671530, now seen corresponding path program 1 times [2025-03-04 06:43:57,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:57,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419986728] [2025-03-04 06:43:57,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:57,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:58,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-04 06:43:58,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-04 06:43:58,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:58,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:43:58,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419986728] [2025-03-04 06:43:58,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419986728] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:58,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:58,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:58,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429861622] [2025-03-04 06:43:58,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:58,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:58,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:58,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:58,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:58,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 235 [2025-03-04 06:43:58,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 442 transitions, 2712 flow. Second operand has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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) [2025-03-04 06:43:58,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:58,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 235 [2025-03-04 06:43:58,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:00,469 INFO L124 PetriNetUnfolderBase]: 5261/16665 cut-off events. [2025-03-04 06:44:00,469 INFO L125 PetriNetUnfolderBase]: For 19061/19361 co-relation queries the response was YES. [2025-03-04 06:44:00,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44613 conditions, 16665 events. 5261/16665 cut-off events. For 19061/19361 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 158437 event pairs, 2287 based on Foata normal form. 50/15799 useless extension candidates. Maximal degree in co-relation 44537. Up to 9666 conditions per place. [2025-03-04 06:44:00,544 INFO L140 encePairwiseOnDemand]: 204/235 looper letters, 260 selfloop transitions, 156 changer transitions 0/573 dead transitions. [2025-03-04 06:44:00,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 573 transitions, 4280 flow [2025-03-04 06:44:00,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2025-03-04 06:44:00,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8042553191489362 [2025-03-04 06:44:00,546 INFO L175 Difference]: Start difference. First operand has 258 places, 442 transitions, 2712 flow. Second operand 6 states and 1134 transitions. [2025-03-04 06:44:00,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 573 transitions, 4280 flow [2025-03-04 06:44:00,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 573 transitions, 4280 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:44:00,603 INFO L231 Difference]: Finished difference. Result has 268 places, 573 transitions, 4180 flow [2025-03-04 06:44:00,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=2712, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4180, PETRI_PLACES=268, PETRI_TRANSITIONS=573} [2025-03-04 06:44:00,605 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 46 predicate places. [2025-03-04 06:44:00,605 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 573 transitions, 4180 flow [2025-03-04 06:44:00,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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) [2025-03-04 06:44:00,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:00,605 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] [2025-03-04 06:44:00,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:44:00,606 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:44:00,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -661893215, now seen corresponding path program 1 times [2025-03-04 06:44:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405799965] [2025-03-04 06:44:00,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:00,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:00,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-04 06:44:00,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-04 06:44:00,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:00,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:44:00,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:00,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405799965] [2025-03-04 06:44:00,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405799965] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:00,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:00,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:00,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215099864] [2025-03-04 06:44:00,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:00,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:00,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:00,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:00,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:01,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 235 [2025-03-04 06:44:01,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 573 transitions, 4180 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2025-03-04 06:44:01,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:01,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 235 [2025-03-04 06:44:01,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:03,604 INFO L124 PetriNetUnfolderBase]: 5567/17507 cut-off events. [2025-03-04 06:44:03,604 INFO L125 PetriNetUnfolderBase]: For 29098/29352 co-relation queries the response was YES. [2025-03-04 06:44:03,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52930 conditions, 17507 events. 5567/17507 cut-off events. For 29098/29352 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 167720 event pairs, 2232 based on Foata normal form. 12/16658 useless extension candidates. Maximal degree in co-relation 52849. Up to 9984 conditions per place. [2025-03-04 06:44:03,708 INFO L140 encePairwiseOnDemand]: 204/235 looper letters, 372 selfloop transitions, 167 changer transitions 0/700 dead transitions. [2025-03-04 06:44:03,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 700 transitions, 5924 flow [2025-03-04 06:44:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2025-03-04 06:44:03,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8042553191489362 [2025-03-04 06:44:03,711 INFO L175 Difference]: Start difference. First operand has 268 places, 573 transitions, 4180 flow. Second operand 6 states and 1134 transitions. [2025-03-04 06:44:03,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 700 transitions, 5924 flow [2025-03-04 06:44:03,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 700 transitions, 5692 flow, removed 116 selfloop flow, removed 0 redundant places. [2025-03-04 06:44:03,985 INFO L231 Difference]: Finished difference. Result has 278 places, 700 transitions, 5388 flow [2025-03-04 06:44:03,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=3960, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5388, PETRI_PLACES=278, PETRI_TRANSITIONS=700} [2025-03-04 06:44:03,987 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 56 predicate places. [2025-03-04 06:44:03,987 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 700 transitions, 5388 flow [2025-03-04 06:44:03,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2025-03-04 06:44:03,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:03,987 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] [2025-03-04 06:44:03,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:44:03,987 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:44:03,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:03,988 INFO L85 PathProgramCache]: Analyzing trace with hash 858337806, now seen corresponding path program 1 times [2025-03-04 06:44:03,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:03,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361998659] [2025-03-04 06:44:03,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:03,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:03,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:44:04,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:44:04,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:04,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:44:06,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:06,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361998659] [2025-03-04 06:44:06,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361998659] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:06,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:06,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-03-04 06:44:06,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865430407] [2025-03-04 06:44:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:06,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 06:44:06,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:06,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 06:44:06,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2025-03-04 06:44:09,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 235 [2025-03-04 06:44:09,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 700 transitions, 5388 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2025-03-04 06:44:09,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:09,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 235 [2025-03-04 06:44:09,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:15,033 INFO L124 PetriNetUnfolderBase]: 6286/25441 cut-off events. [2025-03-04 06:44:15,033 INFO L125 PetriNetUnfolderBase]: For 52755/54255 co-relation queries the response was YES. [2025-03-04 06:44:15,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75290 conditions, 25441 events. 6286/25441 cut-off events. For 52755/54255 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 289034 event pairs, 825 based on Foata normal form. 329/24733 useless extension candidates. Maximal degree in co-relation 75196. Up to 7429 conditions per place. [2025-03-04 06:44:15,223 INFO L140 encePairwiseOnDemand]: 196/235 looper letters, 976 selfloop transitions, 193 changer transitions 0/1447 dead transitions. [2025-03-04 06:44:15,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1447 transitions, 13948 flow [2025-03-04 06:44:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-04 06:44:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-03-04 06:44:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5762 transitions. [2025-03-04 06:44:15,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7005471124620061 [2025-03-04 06:44:15,233 INFO L175 Difference]: Start difference. First operand has 278 places, 700 transitions, 5388 flow. Second operand 35 states and 5762 transitions. [2025-03-04 06:44:15,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 1447 transitions, 13948 flow [2025-03-04 06:44:15,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1447 transitions, 13792 flow, removed 78 selfloop flow, removed 0 redundant places. [2025-03-04 06:44:15,455 INFO L231 Difference]: Finished difference. Result has 337 places, 901 transitions, 8389 flow [2025-03-04 06:44:15,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=5232, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8389, PETRI_PLACES=337, PETRI_TRANSITIONS=901} [2025-03-04 06:44:15,456 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 115 predicate places. [2025-03-04 06:44:15,456 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 901 transitions, 8389 flow [2025-03-04 06:44:15,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2025-03-04 06:44:15,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:15,458 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] [2025-03-04 06:44:15,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:44:15,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:44:15,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:15,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1479586550, now seen corresponding path program 2 times [2025-03-04 06:44:15,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618062994] [2025-03-04 06:44:15,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:44:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:15,470 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-03-04 06:44:15,482 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 86 of 95 statements. [2025-03-04 06:44:15,482 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:44:15,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:44:17,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618062994] [2025-03-04 06:44:17,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618062994] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:17,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-03-04 06:44:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941110220] [2025-03-04 06:44:17,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:17,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-04 06:44:17,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:17,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-04 06:44:17,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2025-03-04 06:44:20,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 235 [2025-03-04 06:44:20,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 901 transitions, 8389 flow. Second operand has 20 states, 20 states have (on average 162.65) internal successors, (3253), 20 states have internal predecessors, (3253), 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) [2025-03-04 06:44:20,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:20,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 235 [2025-03-04 06:44:20,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:36,408 INFO L124 PetriNetUnfolderBase]: 23454/86484 cut-off events. [2025-03-04 06:44:36,408 INFO L125 PetriNetUnfolderBase]: For 254872/262579 co-relation queries the response was YES. [2025-03-04 06:44:37,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287999 conditions, 86484 events. 23454/86484 cut-off events. For 254872/262579 co-relation queries the response was YES. Maximal size of possible extension queue 1262. Compared 1169615 event pairs, 4115 based on Foata normal form. 1154/84557 useless extension candidates. Maximal degree in co-relation 287878. Up to 12635 conditions per place. [2025-03-04 06:44:37,524 INFO L140 encePairwiseOnDemand]: 194/235 looper letters, 2082 selfloop transitions, 244 changer transitions 0/2618 dead transitions. [2025-03-04 06:44:37,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 2618 transitions, 30225 flow [2025-03-04 06:44:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 06:44:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-04 06:44:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3144 transitions. [2025-03-04 06:44:37,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7869837296620776 [2025-03-04 06:44:37,529 INFO L175 Difference]: Start difference. First operand has 337 places, 901 transitions, 8389 flow. Second operand 17 states and 3144 transitions. [2025-03-04 06:44:37,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 2618 transitions, 30225 flow [2025-03-04 06:44:39,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 2618 transitions, 30184 flow, removed 15 selfloop flow, removed 6 redundant places. [2025-03-04 06:44:39,168 INFO L231 Difference]: Finished difference. Result has 360 places, 1138 transitions, 13118 flow [2025-03-04 06:44:39,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=8348, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13118, PETRI_PLACES=360, PETRI_TRANSITIONS=1138} [2025-03-04 06:44:39,169 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 138 predicate places. [2025-03-04 06:44:39,169 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 1138 transitions, 13118 flow [2025-03-04 06:44:39,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 162.65) internal successors, (3253), 20 states have internal predecessors, (3253), 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) [2025-03-04 06:44:39,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:39,170 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] [2025-03-04 06:44:39,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:44:39,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-04 06:44:39,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1526421472, now seen corresponding path program 3 times [2025-03-04 06:44:39,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:39,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662885048] [2025-03-04 06:44:39,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:44:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:39,182 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 2 equivalence classes. [2025-03-04 06:44:39,189 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 86 of 95 statements. [2025-03-04 06:44:39,189 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:44:39,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 06:44:40,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:40,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662885048] [2025-03-04 06:44:40,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662885048] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:40,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:40,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-04 06:44:40,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578774953] [2025-03-04 06:44:40,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:40,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 06:44:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:40,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 06:44:40,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:44:42,015 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 235 [2025-03-04 06:44:42,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 1138 transitions, 13118 flow. Second operand has 18 states, 18 states have (on average 166.61111111111111) internal successors, (2999), 18 states have internal predecessors, (2999), 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) [2025-03-04 06:44:42,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:42,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 235 [2025-03-04 06:44:42,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:03,181 INFO L124 PetriNetUnfolderBase]: 22451/94896 cut-off events. [2025-03-04 06:45:03,181 INFO L125 PetriNetUnfolderBase]: For 398771/407936 co-relation queries the response was YES. [2025-03-04 06:45:04,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333134 conditions, 94896 events. 22451/94896 cut-off events. For 398771/407936 co-relation queries the response was YES. Maximal size of possible extension queue 1332. Compared 1349232 event pairs, 1204 based on Foata normal form. 992/92631 useless extension candidates. Maximal degree in co-relation 333003. Up to 21349 conditions per place. [2025-03-04 06:45:04,597 INFO L140 encePairwiseOnDemand]: 205/235 looper letters, 1421 selfloop transitions, 359 changer transitions 0/2114 dead transitions. [2025-03-04 06:45:04,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 2114 transitions, 27672 flow [2025-03-04 06:45:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 06:45:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-04 06:45:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3649 transitions. [2025-03-04 06:45:04,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7763829787234042 [2025-03-04 06:45:04,602 INFO L175 Difference]: Start difference. First operand has 360 places, 1138 transitions, 13118 flow. Second operand 20 states and 3649 transitions. [2025-03-04 06:45:04,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 2114 transitions, 27672 flow