./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:06:54,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:06:54,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:06:54,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:06:54,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:06:54,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:06:54,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:06:54,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:06:54,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:06:54,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:06:54,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:06:54,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:06:54,467 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:06:54,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:06:54,468 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:06:54,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:54,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:54,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:06:54,469 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2025-01-09 21:06:54,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:06:54,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:06:54,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:06:54,666 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:06:54,666 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:06:54,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-01-09 21:06:55,811 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72b634d9b/18d25a0223fe47fa9ddef9541a7b042c/FLAG3ee1821b7 [2025-01-09 21:06:56,141 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:06:56,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-01-09 21:06:56,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72b634d9b/18d25a0223fe47fa9ddef9541a7b042c/FLAG3ee1821b7 [2025-01-09 21:06:56,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72b634d9b/18d25a0223fe47fa9ddef9541a7b042c [2025-01-09 21:06:56,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:06:56,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:06:56,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:06:56,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:06:56,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:06:56,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1581076a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56, skipping insertion in model container [2025-01-09 21:06:56,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:06:56,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:06:56,665 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:06:56,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:06:56,711 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:06:56,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56 WrapperNode [2025-01-09 21:06:56,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:06:56,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:06:56,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:06:56,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:06:56,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,755 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 114 [2025-01-09 21:06:56,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:06:56,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:06:56,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:06:56,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:06:56,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:06:56,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:06:56,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:06:56,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:06:56,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (1/1) ... [2025-01-09 21:06:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:06:56,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:06:56,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:06:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:06:56,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:06:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:06:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:06:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:06:56,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:06:56,826 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:06:56,900 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:06:56,902 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:06:57,108 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:06:57,108 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:06:57,177 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:06:57,178 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 21:06:57,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:06:57 BoogieIcfgContainer [2025-01-09 21:06:57,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:06:57,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:06:57,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:06:57,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:06:57,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:06:56" (1/3) ... [2025-01-09 21:06:57,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ba126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:06:57, skipping insertion in model container [2025-01-09 21:06:57,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:56" (2/3) ... [2025-01-09 21:06:57,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ba126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:06:57, skipping insertion in model container [2025-01-09 21:06:57,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:06:57" (3/3) ... [2025-01-09 21:06:57,185 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2025-01-09 21:06:57,195 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:06:57,196 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf-b.i that has 2 procedures, 88 locations, 1 initial locations, 1 loop locations, and 15 error locations. [2025-01-09 21:06:57,197 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:06:57,230 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:57,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 92 transitions, 188 flow [2025-01-09 21:06:57,306 INFO L124 PetriNetUnfolderBase]: 4/99 cut-off events. [2025-01-09 21:06:57,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:57,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 4/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2025-01-09 21:06:57,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 92 transitions, 188 flow [2025-01-09 21:06:57,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 92 transitions, 188 flow [2025-01-09 21:06:57,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:57,337 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;@4ddc4bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:57,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-01-09 21:06:57,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:57,343 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-01-09 21:06:57,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:57,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:57,344 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:57,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-01-09 21:06:57,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:57,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1061181204, now seen corresponding path program 1 times [2025-01-09 21:06:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:57,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360175208] [2025-01-09 21:06:57,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:57,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:06:57,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:06:57,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:57,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:57,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360175208] [2025-01-09 21:06:57,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360175208] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:57,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:57,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043968437] [2025-01-09 21:06:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:57,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:57,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:57,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:57,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:57,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2025-01-09 21:06:57,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 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) [2025-01-09 21:06:57,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:57,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2025-01-09 21:06:57,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:57,536 INFO L124 PetriNetUnfolderBase]: 1/75 cut-off events. [2025-01-09 21:06:57,537 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:06:57,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 1/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2025-01-09 21:06:57,538 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 5 selfloop transitions, 0 changer transitions 0/72 dead transitions. [2025-01-09 21:06:57,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 158 flow [2025-01-09 21:06:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 164 transitions. [2025-01-09 21:06:57,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8913043478260869 [2025-01-09 21:06:57,548 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 188 flow. Second operand 2 states and 164 transitions. [2025-01-09 21:06:57,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 158 flow [2025-01-09 21:06:57,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 158 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:57,553 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 148 flow [2025-01-09 21:06:57,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2025-01-09 21:06:57,557 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -16 predicate places. [2025-01-09 21:06:57,557 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 148 flow [2025-01-09 21:06:57,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 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) [2025-01-09 21:06:57,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:57,557 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] [2025-01-09 21:06:57,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:06:57,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-01-09 21:06:57,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1887874097, now seen corresponding path program 1 times [2025-01-09 21:06:57,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:57,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611751700] [2025-01-09 21:06:57,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:57,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:57,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:06:57,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:06:57,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:57,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611751700] [2025-01-09 21:06:57,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611751700] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:57,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:57,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:06:57,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413223875] [2025-01-09 21:06:57,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:57,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:06:57,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:57,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:06:57,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:06:57,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 92 [2025-01-09 21:06:57,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2025-01-09 21:06:57,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:57,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 92 [2025-01-09 21:06:57,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:57,712 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2025-01-09 21:06:57,713 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:06:57,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 77 events. 0/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2025-01-09 21:06:57,713 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 8 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2025-01-09 21:06:57,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 170 flow [2025-01-09 21:06:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:06:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:06:57,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-01-09 21:06:57,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7572463768115942 [2025-01-09 21:06:57,715 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 148 flow. Second operand 3 states and 209 transitions. [2025-01-09 21:06:57,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 170 flow [2025-01-09 21:06:57,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:57,717 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 152 flow [2025-01-09 21:06:57,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2025-01-09 21:06:57,718 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -16 predicate places. [2025-01-09 21:06:57,718 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 152 flow [2025-01-09 21:06:57,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2025-01-09 21:06:57,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:57,718 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:57,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:06:57,718 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-01-09 21:06:57,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:57,719 INFO L85 PathProgramCache]: Analyzing trace with hash -886861738, now seen corresponding path program 1 times [2025-01-09 21:06:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:57,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105957253] [2025-01-09 21:06:57,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:57,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:57,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 21:06:57,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 21:06:57,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:57,732 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:06:57,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 21:06:57,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 21:06:57,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:57,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:06:57,761 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:06:57,762 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-01-09 21:06:57,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-01-09 21:06:57,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-01-09 21:06:57,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:06:57,769 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:06:57,774 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:06:57,774 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:06:57,825 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:57,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 162 transitions, 334 flow [2025-01-09 21:06:57,849 INFO L124 PetriNetUnfolderBase]: 8/178 cut-off events. [2025-01-09 21:06:57,849 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:06:57,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 178 events. 8/178 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 470 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 147. Up to 3 conditions per place. [2025-01-09 21:06:57,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 162 transitions, 334 flow [2025-01-09 21:06:57,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 162 transitions, 334 flow [2025-01-09 21:06:57,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:57,855 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;@4ddc4bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:57,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-01-09 21:06:57,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:57,858 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-01-09 21:06:57,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:57,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:57,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:57,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-01-09 21:06:57,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:57,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1548721010, now seen corresponding path program 1 times [2025-01-09 21:06:57,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:57,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712936837] [2025-01-09 21:06:57,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:57,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:57,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:06:57,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:06:57,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:57,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712936837] [2025-01-09 21:06:57,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712936837] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:57,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:57,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:57,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132095161] [2025-01-09 21:06:57,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:57,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:57,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:57,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:57,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:57,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2025-01-09 21:06:57,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 162 transitions, 334 flow. Second operand has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2025-01-09 21:06:57,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:57,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2025-01-09 21:06:57,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:57,932 INFO L124 PetriNetUnfolderBase]: 25/361 cut-off events. [2025-01-09 21:06:57,933 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-01-09 21:06:57,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 361 events. 25/361 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1697 event pairs, 14 based on Foata normal form. 63/364 useless extension candidates. Maximal degree in co-relation 324. Up to 50 conditions per place. [2025-01-09 21:06:57,935 INFO L140 encePairwiseOnDemand]: 137/162 looper letters, 10 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2025-01-09 21:06:57,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 126 transitions, 282 flow [2025-01-09 21:06:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 285 transitions. [2025-01-09 21:06:57,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2025-01-09 21:06:57,937 INFO L175 Difference]: Start difference. First operand has 159 places, 162 transitions, 334 flow. Second operand 2 states and 285 transitions. [2025-01-09 21:06:57,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 126 transitions, 282 flow [2025-01-09 21:06:57,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 126 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:57,939 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 262 flow [2025-01-09 21:06:57,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2025-01-09 21:06:57,940 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -29 predicate places. [2025-01-09 21:06:57,940 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 262 flow [2025-01-09 21:06:57,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2025-01-09 21:06:57,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:57,940 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] [2025-01-09 21:06:57,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:06:57,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-01-09 21:06:57,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2032782289, now seen corresponding path program 1 times [2025-01-09 21:06:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559515771] [2025-01-09 21:06:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:57,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:57,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:06:57,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:06:57,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:57,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:57,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:57,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559515771] [2025-01-09 21:06:57,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559515771] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:57,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:57,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:06:57,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124054108] [2025-01-09 21:06:57,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:57,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:06:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:57,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:06:57,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:06:57,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2025-01-09 21:06:57,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2025-01-09 21:06:57,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:57,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2025-01-09 21:06:57,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:58,143 INFO L124 PetriNetUnfolderBase]: 168/1306 cut-off events. [2025-01-09 21:06:58,143 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2025-01-09 21:06:58,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 1306 events. 168/1306 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10207 event pairs, 50 based on Foata normal form. 0/1114 useless extension candidates. Maximal degree in co-relation 1719. Up to 243 conditions per place. [2025-01-09 21:06:58,148 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 35 selfloop transitions, 12 changer transitions 0/147 dead transitions. [2025-01-09 21:06:58,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 147 transitions, 403 flow [2025-01-09 21:06:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:06:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:06:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2025-01-09 21:06:58,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2025-01-09 21:06:58,150 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 262 flow. Second operand 3 states and 378 transitions. [2025-01-09 21:06:58,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 147 transitions, 403 flow [2025-01-09 21:06:58,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 147 transitions, 403 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:58,153 INFO L231 Difference]: Finished difference. Result has 134 places, 138 transitions, 366 flow [2025-01-09 21:06:58,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=134, PETRI_TRANSITIONS=138} [2025-01-09 21:06:58,154 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -25 predicate places. [2025-01-09 21:06:58,154 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 138 transitions, 366 flow [2025-01-09 21:06:58,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2025-01-09 21:06:58,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:58,154 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] [2025-01-09 21:06:58,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:06:58,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-01-09 21:06:58,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:58,155 INFO L85 PathProgramCache]: Analyzing trace with hash -922681651, now seen corresponding path program 1 times [2025-01-09 21:06:58,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:58,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839077650] [2025-01-09 21:06:58,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:58,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:58,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:06:58,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:06:58,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:58,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:58,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:58,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839077650] [2025-01-09 21:06:58,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839077650] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:58,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:58,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:06:58,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314894080] [2025-01-09 21:06:58,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:58,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:06:58,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:58,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:06:58,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:06:58,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 162 [2025-01-09 21:06:58,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 138 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2025-01-09 21:06:58,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:58,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 162 [2025-01-09 21:06:58,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:58,359 INFO L124 PetriNetUnfolderBase]: 239/1685 cut-off events. [2025-01-09 21:06:58,359 INFO L125 PetriNetUnfolderBase]: For 374/395 co-relation queries the response was YES. [2025-01-09 21:06:58,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 1685 events. 239/1685 cut-off events. For 374/395 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14032 event pairs, 111 based on Foata normal form. 3/1448 useless extension candidates. Maximal degree in co-relation 2583. Up to 431 conditions per place. [2025-01-09 21:06:58,368 INFO L140 encePairwiseOnDemand]: 154/162 looper letters, 35 selfloop transitions, 10 changer transitions 0/151 dead transitions. [2025-01-09 21:06:58,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 151 transitions, 507 flow [2025-01-09 21:06:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:06:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:06:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2025-01-09 21:06:58,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2025-01-09 21:06:58,369 INFO L175 Difference]: Start difference. First operand has 134 places, 138 transitions, 366 flow. Second operand 3 states and 369 transitions. [2025-01-09 21:06:58,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 151 transitions, 507 flow [2025-01-09 21:06:58,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 151 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:06:58,373 INFO L231 Difference]: Finished difference. Result has 136 places, 146 transitions, 428 flow [2025-01-09 21:06:58,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=136, PETRI_TRANSITIONS=146} [2025-01-09 21:06:58,376 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -23 predicate places. [2025-01-09 21:06:58,377 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 146 transitions, 428 flow [2025-01-09 21:06:58,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2025-01-09 21:06:58,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:58,377 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:58,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:06:58,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-01-09 21:06:58,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:58,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1246474746, now seen corresponding path program 1 times [2025-01-09 21:06:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222834422] [2025-01-09 21:06:58,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:58,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 21:06:58,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 21:06:58,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:58,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:58,385 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:06:58,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 21:06:58,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 21:06:58,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:58,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:58,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:06:58,392 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-01-09 21:06:58,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-01-09 21:06:58,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-01-09 21:06:58,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-01-09 21:06:58,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:06:58,394 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-09 21:06:58,394 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:06:58,394 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-09 21:06:58,446 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:58,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 482 flow [2025-01-09 21:06:58,465 INFO L124 PetriNetUnfolderBase]: 12/257 cut-off events. [2025-01-09 21:06:58,465 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:06:58,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 257 events. 12/257 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 905 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 216. Up to 4 conditions per place. [2025-01-09 21:06:58,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 232 transitions, 482 flow [2025-01-09 21:06:58,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 232 transitions, 482 flow [2025-01-09 21:06:58,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:58,470 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;@4ddc4bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:58,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-01-09 21:06:58,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:58,472 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-01-09 21:06:58,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:58,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:58,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:58,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-01-09 21:06:58,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:58,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1304714769, now seen corresponding path program 1 times [2025-01-09 21:06:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:58,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444442991] [2025-01-09 21:06:58,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:58,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:58,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:06:58,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:06:58,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:58,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444442991] [2025-01-09 21:06:58,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444442991] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:58,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:58,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:58,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943676926] [2025-01-09 21:06:58,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:58,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:58,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:58,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:58,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:58,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 232 [2025-01-09 21:06:58,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 232 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 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) [2025-01-09 21:06:58,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:58,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 232 [2025-01-09 21:06:58,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:58,660 INFO L124 PetriNetUnfolderBase]: 250/1730 cut-off events. [2025-01-09 21:06:58,660 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-01-09 21:06:58,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1730 events. 250/1730 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14138 event pairs, 161 based on Foata normal form. 417/1849 useless extension candidates. Maximal degree in co-relation 1661. Up to 378 conditions per place. [2025-01-09 21:06:58,670 INFO L140 encePairwiseOnDemand]: 195/232 looper letters, 15 selfloop transitions, 0 changer transitions 0/180 dead transitions. [2025-01-09 21:06:58,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 180 transitions, 408 flow [2025-01-09 21:06:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 406 transitions. [2025-01-09 21:06:58,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.875 [2025-01-09 21:06:58,671 INFO L175 Difference]: Start difference. First operand has 227 places, 232 transitions, 482 flow. Second operand 2 states and 406 transitions. [2025-01-09 21:06:58,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 180 transitions, 408 flow [2025-01-09 21:06:58,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 180 transitions, 406 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:58,674 INFO L231 Difference]: Finished difference. Result has 185 places, 180 transitions, 376 flow [2025-01-09 21:06:58,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=180} [2025-01-09 21:06:58,674 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -42 predicate places. [2025-01-09 21:06:58,674 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 180 transitions, 376 flow [2025-01-09 21:06:58,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 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) [2025-01-09 21:06:58,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:58,675 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] [2025-01-09 21:06:58,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:06:58,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-01-09 21:06:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -299528812, now seen corresponding path program 1 times [2025-01-09 21:06:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342090567] [2025-01-09 21:06:58,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:58,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:06:58,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:06:58,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:58,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:58,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:58,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342090567] [2025-01-09 21:06:58,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342090567] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:58,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:58,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:06:58,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468301713] [2025-01-09 21:06:58,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:58,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:06:58,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:58,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:06:58,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:06:58,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 232 [2025-01-09 21:06:58,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 180 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2025-01-09 21:06:58,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:58,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 232 [2025-01-09 21:06:58,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:07:00,569 INFO L124 PetriNetUnfolderBase]: 5416/22712 cut-off events. [2025-01-09 21:07:00,569 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-01-09 21:07:00,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31979 conditions, 22712 events. 5416/22712 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 296098 event pairs, 1708 based on Foata normal form. 0/19206 useless extension candidates. Maximal degree in co-relation 31973. Up to 5479 conditions per place. [2025-01-09 21:07:00,709 INFO L140 encePairwiseOnDemand]: 208/232 looper letters, 53 selfloop transitions, 18 changer transitions 0/212 dead transitions. [2025-01-09 21:07:00,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 212 transitions, 592 flow [2025-01-09 21:07:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:07:00,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:07:00,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2025-01-09 21:07:00,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2025-01-09 21:07:00,711 INFO L175 Difference]: Start difference. First operand has 185 places, 180 transitions, 376 flow. Second operand 3 states and 536 transitions. [2025-01-09 21:07:00,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 212 transitions, 592 flow [2025-01-09 21:07:00,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 212 transitions, 592 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:07:00,714 INFO L231 Difference]: Finished difference. Result has 189 places, 198 transitions, 532 flow [2025-01-09 21:07:00,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=189, PETRI_TRANSITIONS=198} [2025-01-09 21:07:00,716 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -38 predicate places. [2025-01-09 21:07:00,716 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 198 transitions, 532 flow [2025-01-09 21:07:00,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2025-01-09 21:07:00,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:00,716 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] [2025-01-09 21:07:00,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:07:00,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-01-09 21:07:00,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:00,717 INFO L85 PathProgramCache]: Analyzing trace with hash -366402094, now seen corresponding path program 1 times [2025-01-09 21:07:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140082909] [2025-01-09 21:07:00,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:00,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:07:00,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:07:00,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:00,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:07:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:07:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:07:00,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140082909] [2025-01-09 21:07:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140082909] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:07:00,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:07:00,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:07:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799704452] [2025-01-09 21:07:00,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:07:00,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:07:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:07:00,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:07:00,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:07:00,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 232 [2025-01-09 21:07:00,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 198 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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) [2025-01-09 21:07:00,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:07:00,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 232 [2025-01-09 21:07:00,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:07:03,010 INFO L124 PetriNetUnfolderBase]: 7453/32783 cut-off events. [2025-01-09 21:07:03,011 INFO L125 PetriNetUnfolderBase]: For 9195/10142 co-relation queries the response was YES. [2025-01-09 21:07:03,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53376 conditions, 32783 events. 7453/32783 cut-off events. For 9195/10142 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 456778 event pairs, 3518 based on Foata normal form. 56/27783 useless extension candidates. Maximal degree in co-relation 53368. Up to 9785 conditions per place. [2025-01-09 21:07:03,234 INFO L140 encePairwiseOnDemand]: 220/232 looper letters, 53 selfloop transitions, 20 changer transitions 0/226 dead transitions. [2025-01-09 21:07:03,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 226 transitions, 792 flow [2025-01-09 21:07:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:07:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:07:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2025-01-09 21:07:03,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7629310344827587 [2025-01-09 21:07:03,238 INFO L175 Difference]: Start difference. First operand has 189 places, 198 transitions, 532 flow. Second operand 3 states and 531 transitions. [2025-01-09 21:07:03,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 226 transitions, 792 flow [2025-01-09 21:07:03,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 226 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:07:03,255 INFO L231 Difference]: Finished difference. Result has 191 places, 216 transitions, 682 flow [2025-01-09 21:07:03,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=191, PETRI_TRANSITIONS=216} [2025-01-09 21:07:03,258 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -36 predicate places. [2025-01-09 21:07:03,258 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 216 transitions, 682 flow [2025-01-09 21:07:03,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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) [2025-01-09 21:07:03,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:03,258 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:07:03,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 21:07:03,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-01-09 21:07:03,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1560775505, now seen corresponding path program 1 times [2025-01-09 21:07:03,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:03,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957645198] [2025-01-09 21:07:03,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:03,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:03,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-09 21:07:03,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-09 21:07:03,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:03,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:07:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:07:03,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:07:03,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957645198] [2025-01-09 21:07:03,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957645198] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:07:03,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:07:03,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:07:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255529325] [2025-01-09 21:07:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:07:03,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:07:03,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:07:03,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:07:03,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:07:03,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 232 [2025-01-09 21:07:03,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 216 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2025-01-09 21:07:03,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:07:03,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 232 [2025-01-09 21:07:03,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:07:05,904 INFO L124 PetriNetUnfolderBase]: 9179/37562 cut-off events. [2025-01-09 21:07:05,904 INFO L125 PetriNetUnfolderBase]: For 15290/16767 co-relation queries the response was YES. [2025-01-09 21:07:06,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65335 conditions, 37562 events. 9179/37562 cut-off events. For 15290/16767 co-relation queries the response was YES. Maximal size of possible extension queue 1111. Compared 527728 event pairs, 3917 based on Foata normal form. 64/31570 useless extension candidates. Maximal degree in co-relation 65326. Up to 11809 conditions per place. [2025-01-09 21:07:06,477 INFO L140 encePairwiseOnDemand]: 220/232 looper letters, 66 selfloop transitions, 28 changer transitions 0/249 dead transitions. [2025-01-09 21:07:06,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 249 transitions, 1033 flow [2025-01-09 21:07:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:07:06,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:07:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2025-01-09 21:07:06,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7614942528735632 [2025-01-09 21:07:06,478 INFO L175 Difference]: Start difference. First operand has 191 places, 216 transitions, 682 flow. Second operand 3 states and 530 transitions. [2025-01-09 21:07:06,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 249 transitions, 1033 flow [2025-01-09 21:07:06,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 249 transitions, 977 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:07:06,537 INFO L231 Difference]: Finished difference. Result has 193 places, 240 transitions, 928 flow [2025-01-09 21:07:06,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=928, PETRI_PLACES=193, PETRI_TRANSITIONS=240} [2025-01-09 21:07:06,538 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -34 predicate places. [2025-01-09 21:07:06,538 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 240 transitions, 928 flow [2025-01-09 21:07:06,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2025-01-09 21:07:06,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:06,538 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:07:06,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 21:07:06,539 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-01-09 21:07:06,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1347933335, now seen corresponding path program 1 times [2025-01-09 21:07:06,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:06,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013683989] [2025-01-09 21:07:06,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:06,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:06,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-09 21:07:06,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-09 21:07:06,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:06,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:07:06,548 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:07:06,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-09 21:07:06,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-09 21:07:06,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:06,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:07:06,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:07:06,556 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:07:06,556 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-01-09 21:07:06,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-01-09 21:07:06,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-01-09 21:07:06,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-01-09 21:07:06,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-01-09 21:07:06,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-01-09 21:07:06,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 21:07:06,559 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 21:07:06,559 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:07:06,559 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-01-09 21:07:06,593 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:07:06,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 302 transitions, 632 flow [2025-01-09 21:07:06,617 INFO L124 PetriNetUnfolderBase]: 16/336 cut-off events. [2025-01-09 21:07:06,617 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:07:06,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 336 events. 16/336 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1368 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 285. Up to 5 conditions per place. [2025-01-09 21:07:06,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 302 transitions, 632 flow [2025-01-09 21:07:06,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 302 transitions, 632 flow [2025-01-09 21:07:06,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:07:06,625 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;@4ddc4bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:07:06,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-01-09 21:07:06,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:07:06,626 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-01-09 21:07:06,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:07:06,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:06,627 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:07:06,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-01-09 21:07:06,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:06,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1090671425, now seen corresponding path program 1 times [2025-01-09 21:07:06,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:06,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556070592] [2025-01-09 21:07:06,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:06,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:06,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:07:06,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:07:06,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:06,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:07:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:07:06,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:07:06,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556070592] [2025-01-09 21:07:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556070592] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:07:06,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:07:06,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:07:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118588659] [2025-01-09 21:07:06,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:07:06,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:07:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:07:06,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:07:06,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:07:06,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 302 [2025-01-09 21:07:06,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 302 transitions, 632 flow. Second operand has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2025-01-09 21:07:06,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:07:06,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 302 [2025-01-09 21:07:06,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:07:07,445 INFO L124 PetriNetUnfolderBase]: 1933/8415 cut-off events. [2025-01-09 21:07:07,446 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-01-09 21:07:07,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11620 conditions, 8415 events. 1933/8415 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 92049 event pairs, 1329 based on Foata normal form. 2648/9695 useless extension candidates. Maximal degree in co-relation 8698. Up to 2591 conditions per place. [2025-01-09 21:07:07,519 INFO L140 encePairwiseOnDemand]: 253/302 looper letters, 20 selfloop transitions, 0 changer transitions 0/234 dead transitions. [2025-01-09 21:07:07,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 234 transitions, 536 flow [2025-01-09 21:07:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:07:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:07:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 527 transitions. [2025-01-09 21:07:07,525 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8725165562913907 [2025-01-09 21:07:07,525 INFO L175 Difference]: Start difference. First operand has 295 places, 302 transitions, 632 flow. Second operand 2 states and 527 transitions. [2025-01-09 21:07:07,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 234 transitions, 536 flow [2025-01-09 21:07:07,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 234 transitions, 530 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-01-09 21:07:07,528 INFO L231 Difference]: Finished difference. Result has 240 places, 234 transitions, 490 flow [2025-01-09 21:07:07,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=234} [2025-01-09 21:07:07,530 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -55 predicate places. [2025-01-09 21:07:07,530 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 234 transitions, 490 flow [2025-01-09 21:07:07,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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) [2025-01-09 21:07:07,530 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:07,531 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] [2025-01-09 21:07:07,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 21:07:07,531 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-01-09 21:07:07,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash -163178718, now seen corresponding path program 1 times [2025-01-09 21:07:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557954107] [2025-01-09 21:07:07,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:07,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:07,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:07:07,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:07:07,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:07,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:07:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:07:07,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:07:07,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557954107] [2025-01-09 21:07:07,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557954107] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:07:07,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:07:07,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:07:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606227592] [2025-01-09 21:07:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:07:07,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:07:07,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:07:07,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:07:07,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:07:07,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 302 [2025-01-09 21:07:07,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 234 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2025-01-09 21:07:07,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:07:07,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 302 [2025-01-09 21:07:07,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:07:35,083 INFO L124 PetriNetUnfolderBase]: 120581/364047 cut-off events. [2025-01-09 21:07:35,084 INFO L125 PetriNetUnfolderBase]: For 9823/9823 co-relation queries the response was YES. [2025-01-09 21:07:36,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541232 conditions, 364047 events. 120581/364047 cut-off events. For 9823/9823 co-relation queries the response was YES. Maximal size of possible extension queue 9112. Compared 6093406 event pairs, 41901 based on Foata normal form. 0/306954 useless extension candidates. Maximal degree in co-relation 541225. Up to 103403 conditions per place. [2025-01-09 21:07:38,884 INFO L140 encePairwiseOnDemand]: 270/302 looper letters, 71 selfloop transitions, 24 changer transitions 0/277 dead transitions. [2025-01-09 21:07:38,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 277 transitions, 781 flow [2025-01-09 21:07:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:07:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:07:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2025-01-09 21:07:38,886 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7660044150110376 [2025-01-09 21:07:38,886 INFO L175 Difference]: Start difference. First operand has 240 places, 234 transitions, 490 flow. Second operand 3 states and 694 transitions. [2025-01-09 21:07:38,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 277 transitions, 781 flow [2025-01-09 21:07:38,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 277 transitions, 781 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:07:38,898 INFO L231 Difference]: Finished difference. Result has 244 places, 258 transitions, 698 flow [2025-01-09 21:07:38,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=244, PETRI_TRANSITIONS=258} [2025-01-09 21:07:38,899 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -51 predicate places. [2025-01-09 21:07:38,899 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 258 transitions, 698 flow [2025-01-09 21:07:38,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2025-01-09 21:07:38,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:07:38,900 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] [2025-01-09 21:07:38,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 21:07:38,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-01-09 21:07:38,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:07:38,900 INFO L85 PathProgramCache]: Analyzing trace with hash -983516745, now seen corresponding path program 1 times [2025-01-09 21:07:38,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:07:38,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375095376] [2025-01-09 21:07:38,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:07:38,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:07:38,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:07:38,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:07:38,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:07:38,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:07:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:07:38,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:07:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375095376] [2025-01-09 21:07:38,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375095376] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:07:38,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:07:38,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:07:38,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865527607] [2025-01-09 21:07:38,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:07:38,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:07:38,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:07:38,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:07:38,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:07:39,005 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 302 [2025-01-09 21:07:39,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 258 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2025-01-09 21:07:39,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:07:39,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 302 [2025-01-09 21:07:39,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand