./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:56:51,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:56:51,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:56:51,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:56:51,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:56:51,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:56:51,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:56:51,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:56:51,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:56:51,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:56:51,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:56:51,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:56:51,204 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:56:51,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:56:51,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:56:51,205 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 [2025-03-04 06:56:51,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:56:51,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:56:51,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:56:51,436 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:56:51,436 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:56:51,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2025-03-04 06:56:52,579 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b99d1cb8/3de009c2b79a4e6a9ca0fa1e7b2521b9/FLAGe53c67f87 [2025-03-04 06:56:52,873 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:56:52,874 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2025-03-04 06:56:52,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b99d1cb8/3de009c2b79a4e6a9ca0fa1e7b2521b9/FLAGe53c67f87 [2025-03-04 06:56:52,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b99d1cb8/3de009c2b79a4e6a9ca0fa1e7b2521b9 [2025-03-04 06:56:52,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:56:52,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:56:52,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:56:52,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:56:52,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:56:52,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:56:52" (1/1) ... [2025-03-04 06:56:52,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571d993d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:52, skipping insertion in model container [2025-03-04 06:56:52,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:56:52" (1/1) ... [2025-03-04 06:56:52,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:56:53,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:56:53,228 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:56:53,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:56:53,309 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:56:53,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53 WrapperNode [2025-03-04 06:56:53,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:56:53,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:56:53,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:56:53,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:56:53,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,351 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2025-03-04 06:56:53,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:56:53,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:56:53,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:56:53,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:56:53,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,375 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:56:53,379 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:56:53,379 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:56:53,380 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:56:53,380 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (1/1) ... [2025-03-04 06:56:53,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:56:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:56:53,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:56:53,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2025-03-04 06:56:53,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:56:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:56:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2025-03-04 06:56:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2025-03-04 06:56:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:56:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 06:56:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:56:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:56:53,430 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:56:53,528 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:56:53,530 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:56:53,794 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:56:53,794 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:56:53,815 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:56:53,816 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:56:53,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:56:53 BoogieIcfgContainer [2025-03-04 06:56:53,816 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:56:53,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:56:53,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:56:53,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:56:53,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:56:52" (1/3) ... [2025-03-04 06:56:53,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b159ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:56:53, skipping insertion in model container [2025-03-04 06:56:53,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:53" (2/3) ... [2025-03-04 06:56:53,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b159ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:56:53, skipping insertion in model container [2025-03-04 06:56:53,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:56:53" (3/3) ... [2025-03-04 06:56:53,827 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-20.i [2025-03-04 06:56:53,837 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:56:53,839 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_c11_bad-20.i that has 3 procedures, 204 locations, 1 initial locations, 4 loop locations, and 30 error locations. [2025-03-04 06:56:53,839 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:56:53,897 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-04 06:56:53,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 456 flow [2025-03-04 06:56:54,076 INFO L124 PetriNetUnfolderBase]: 32/558 cut-off events. [2025-03-04 06:56:54,081 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-04 06:56:54,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 558 events. 32/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2282 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 267. Up to 8 conditions per place. [2025-03-04 06:56:54,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 456 flow [2025-03-04 06:56:54,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 456 flow [2025-03-04 06:56:54,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:56:54,120 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;@6fc95fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:56:54,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2025-03-04 06:56:54,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:56:54,126 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-03-04 06:56:54,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:56:54,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:54,127 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] [2025-03-04 06:56:54,127 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:54,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash -767883091, now seen corresponding path program 1 times [2025-03-04 06:56:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:54,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971797151] [2025-03-04 06:56:54,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:54,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 06:56:54,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 06:56:54,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:54,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:54,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971797151] [2025-03-04 06:56:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971797151] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:54,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273693532] [2025-03-04 06:56:54,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:54,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:54,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:54,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:54,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2025-03-04 06:56:54,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:54,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:54,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2025-03-04 06:56:54,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:54,619 INFO L124 PetriNetUnfolderBase]: 85/994 cut-off events. [2025-03-04 06:56:54,619 INFO L125 PetriNetUnfolderBase]: For 41/43 co-relation queries the response was YES. [2025-03-04 06:56:54,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 994 events. 85/994 cut-off events. For 41/43 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5550 event pairs, 64 based on Foata normal form. 82/893 useless extension candidates. Maximal degree in co-relation 886. Up to 207 conditions per place. [2025-03-04 06:56:54,628 INFO L140 encePairwiseOnDemand]: 207/218 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2025-03-04 06:56:54,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 500 flow [2025-03-04 06:56:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2025-03-04 06:56:54,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8669724770642202 [2025-03-04 06:56:54,644 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 456 flow. Second operand 3 states and 567 transitions. [2025-03-04 06:56:54,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 500 flow [2025-03-04 06:56:54,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:54,654 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 438 flow [2025-03-04 06:56:54,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2025-03-04 06:56:54,660 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2025-03-04 06:56:54,662 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 438 flow [2025-03-04 06:56:54,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:54,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:54,662 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] [2025-03-04 06:56:54,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:56:54,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:54,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1009009236, now seen corresponding path program 1 times [2025-03-04 06:56:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:54,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941807928] [2025-03-04 06:56:54,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:54,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 06:56:54,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 06:56:54,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:54,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:54,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:54,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941807928] [2025-03-04 06:56:54,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941807928] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:54,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:54,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:54,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735763520] [2025-03-04 06:56:54,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:54,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:54,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:54,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:54,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:54,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 218 [2025-03-04 06:56:54,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:54,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:54,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 218 [2025-03-04 06:56:54,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:54,910 INFO L124 PetriNetUnfolderBase]: 117/1003 cut-off events. [2025-03-04 06:56:54,911 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2025-03-04 06:56:54,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1003 events. 117/1003 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5467 event pairs, 78 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 1302. Up to 243 conditions per place. [2025-03-04 06:56:54,918 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 31 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2025-03-04 06:56:54,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 502 flow [2025-03-04 06:56:54,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2025-03-04 06:56:54,921 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8027522935779816 [2025-03-04 06:56:54,922 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 3 states and 525 transitions. [2025-03-04 06:56:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 502 flow [2025-03-04 06:56:54,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 197 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:54,927 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 432 flow [2025-03-04 06:56:54,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2025-03-04 06:56:54,930 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -15 predicate places. [2025-03-04 06:56:54,930 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 432 flow [2025-03-04 06:56:54,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:54,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:54,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:54,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:56:54,931 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:54,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:54,932 INFO L85 PathProgramCache]: Analyzing trace with hash 675767110, now seen corresponding path program 1 times [2025-03-04 06:56:54,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180060836] [2025-03-04 06:56:54,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:54,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:56:54,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:56:54,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:54,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180060836] [2025-03-04 06:56:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180060836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:55,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:55,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:56:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376500344] [2025-03-04 06:56:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:55,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:55,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:55,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:55,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:55,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 218 [2025-03-04 06:56:55,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:55,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:55,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 218 [2025-03-04 06:56:55,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:55,149 INFO L124 PetriNetUnfolderBase]: 27/511 cut-off events. [2025-03-04 06:56:55,150 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2025-03-04 06:56:55,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 511 events. 27/511 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1607 event pairs, 10 based on Foata normal form. 6/464 useless extension candidates. Maximal degree in co-relation 443. Up to 39 conditions per place. [2025-03-04 06:56:55,153 INFO L140 encePairwiseOnDemand]: 206/218 looper letters, 17 selfloop transitions, 8 changer transitions 9/200 dead transitions. [2025-03-04 06:56:55,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 200 transitions, 500 flow [2025-03-04 06:56:55,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:55,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2025-03-04 06:56:55,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2025-03-04 06:56:55,154 INFO L175 Difference]: Start difference. First operand has 195 places, 195 transitions, 432 flow. Second operand 3 states and 594 transitions. [2025-03-04 06:56:55,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 200 transitions, 500 flow [2025-03-04 06:56:55,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 200 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:55,158 INFO L231 Difference]: Finished difference. Result has 196 places, 187 transitions, 426 flow [2025-03-04 06:56:55,158 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2025-03-04 06:56:55,159 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -14 predicate places. [2025-03-04 06:56:55,159 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 426 flow [2025-03-04 06:56:55,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:55,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:55,160 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:55,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:56:55,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:55,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -993650655, now seen corresponding path program 1 times [2025-03-04 06:56:55,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:55,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986794718] [2025-03-04 06:56:55,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:55,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:55,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 06:56:55,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 06:56:55,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:55,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986794718] [2025-03-04 06:56:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986794718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:55,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997320555] [2025-03-04 06:56:55,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:55,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:56:55,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:55,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:56:55,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:56:55,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 218 [2025-03-04 06:56:55,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:55,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:55,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 218 [2025-03-04 06:56:55,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:55,821 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2025-03-04 06:56:55,822 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-04 06:56:55,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 734 events. 83/734 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2907 event pairs, 5 based on Foata normal form. 0/673 useless extension candidates. Maximal degree in co-relation 815. Up to 193 conditions per place. [2025-03-04 06:56:55,826 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 42 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2025-03-04 06:56:55,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 194 transitions, 534 flow [2025-03-04 06:56:55,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2025-03-04 06:56:55,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8065749235474006 [2025-03-04 06:56:55,828 INFO L175 Difference]: Start difference. First operand has 196 places, 187 transitions, 426 flow. Second operand 6 states and 1055 transitions. [2025-03-04 06:56:55,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 194 transitions, 534 flow [2025-03-04 06:56:55,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:56:55,832 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 426 flow [2025-03-04 06:56:55,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2025-03-04 06:56:55,832 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2025-03-04 06:56:55,832 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 426 flow [2025-03-04 06:56:55,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:55,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:55,833 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:55,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:56:55,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:55,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1988903624, now seen corresponding path program 1 times [2025-03-04 06:56:55,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:55,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943163898] [2025-03-04 06:56:55,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:55,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:56:55,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:56:55,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:55,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:55,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:55,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943163898] [2025-03-04 06:56:55,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943163898] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:55,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:55,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989247106] [2025-03-04 06:56:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:55,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:55,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:55,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:55,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:55,928 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2025-03-04 06:56:55,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:55,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:55,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2025-03-04 06:56:55,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:56,008 INFO L124 PetriNetUnfolderBase]: 63/716 cut-off events. [2025-03-04 06:56:56,008 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-03-04 06:56:56,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 716 events. 63/716 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2863 event pairs, 49 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 749. Up to 151 conditions per place. [2025-03-04 06:56:56,011 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-04 06:56:56,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 496 flow [2025-03-04 06:56:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2025-03-04 06:56:56,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2025-03-04 06:56:56,012 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 426 flow. Second operand 3 states and 560 transitions. [2025-03-04 06:56:56,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 496 flow [2025-03-04 06:56:56,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 187 transitions, 486 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:56:56,015 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 418 flow [2025-03-04 06:56:56,015 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2025-03-04 06:56:56,016 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -24 predicate places. [2025-03-04 06:56:56,016 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 418 flow [2025-03-04 06:56:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:56,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:56,016 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:56,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:56:56,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:56,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash -171881314, now seen corresponding path program 1 times [2025-03-04 06:56:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:56,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313291526] [2025-03-04 06:56:56,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:56,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 06:56:56,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 06:56:56,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:56,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:56,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:56,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313291526] [2025-03-04 06:56:56,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313291526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:56,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:56,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:56,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095395121] [2025-03-04 06:56:56,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:56,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:56:56,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:56,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:56:56,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:56:56,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 218 [2025-03-04 06:56:56,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 418 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:56,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:56,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 218 [2025-03-04 06:56:56,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:56,259 INFO L124 PetriNetUnfolderBase]: 6/115 cut-off events. [2025-03-04 06:56:56,259 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 06:56:56,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 115 events. 6/115 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2025-03-04 06:56:56,259 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 11 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-03-04 06:56:56,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 57 transitions, 156 flow [2025-03-04 06:56:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1108 transitions. [2025-03-04 06:56:56,262 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8470948012232415 [2025-03-04 06:56:56,262 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 418 flow. Second operand 6 states and 1108 transitions. [2025-03-04 06:56:56,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 57 transitions, 156 flow [2025-03-04 06:56:56,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 148 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 06:56:56,263 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 114 flow [2025-03-04 06:56:56,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2025-03-04 06:56:56,263 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -150 predicate places. [2025-03-04 06:56:56,263 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 114 flow [2025-03-04 06:56:56,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:56,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:56,264 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:56,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:56:56,264 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-04 06:56:56,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1493434156, now seen corresponding path program 1 times [2025-03-04 06:56:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864951028] [2025-03-04 06:56:56,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:56,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 06:56:56,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 06:56:56,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:56,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:56,289 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:56:56,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 06:56:56,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 06:56:56,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:56,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:56,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:56:56,327 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:56:56,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2025-03-04 06:56:56,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2025-03-04 06:56:56,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2025-03-04 06:56:56,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:56:56,331 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:56,333 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:56:56,333 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 06:56:56,362 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-03-04 06:56:56,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 272 transitions, 588 flow [2025-03-04 06:56:56,522 INFO L124 PetriNetUnfolderBase]: 131/1812 cut-off events. [2025-03-04 06:56:56,523 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-03-04 06:56:56,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1812 events. 131/1812 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 10578 event pairs, 2 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1028. Up to 32 conditions per place. [2025-03-04 06:56:56,531 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 272 transitions, 588 flow [2025-03-04 06:56:56,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 272 transitions, 588 flow [2025-03-04 06:56:56,543 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:56:56,543 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;@6fc95fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:56:56,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-04 06:56:56,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:56:56,545 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-03-04 06:56:56,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:56:56,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:56,545 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] [2025-03-04 06:56:56,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:56:56,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:56,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1134275117, now seen corresponding path program 1 times [2025-03-04 06:56:56,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:56,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991669240] [2025-03-04 06:56:56,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:56,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:56,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 06:56:56,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 06:56:56,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:56,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:56,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991669240] [2025-03-04 06:56:56,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991669240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:56,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:56,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452665936] [2025-03-04 06:56:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:56,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:56,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:56,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:56,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:56,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2025-03-04 06:56:56,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 272 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:56,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:56,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2025-03-04 06:56:56,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:57,460 INFO L124 PetriNetUnfolderBase]: 1200/7025 cut-off events. [2025-03-04 06:56:57,460 INFO L125 PetriNetUnfolderBase]: For 652/686 co-relation queries the response was YES. [2025-03-04 06:56:57,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 7025 events. 1200/7025 cut-off events. For 652/686 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 62168 event pairs, 985 based on Foata normal form. 1614/7417 useless extension candidates. Maximal degree in co-relation 4757. Up to 2070 conditions per place. [2025-03-04 06:56:57,548 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 39 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2025-03-04 06:56:57,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 255 transitions, 636 flow [2025-03-04 06:56:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2025-03-04 06:56:57,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8602941176470589 [2025-03-04 06:56:57,550 INFO L175 Difference]: Start difference. First operand has 259 places, 272 transitions, 588 flow. Second operand 3 states and 702 transitions. [2025-03-04 06:56:57,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 255 transitions, 636 flow [2025-03-04 06:56:57,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 255 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:57,555 INFO L231 Difference]: Finished difference. Result has 252 places, 255 transitions, 558 flow [2025-03-04 06:56:57,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=252, PETRI_TRANSITIONS=255} [2025-03-04 06:56:57,556 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -7 predicate places. [2025-03-04 06:56:57,556 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 255 transitions, 558 flow [2025-03-04 06:56:57,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:57,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:57,557 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, 1, 1] [2025-03-04 06:56:57,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:56:57,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:56:57,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1612070022, now seen corresponding path program 1 times [2025-03-04 06:56:57,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:57,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231117733] [2025-03-04 06:56:57,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:57,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:57,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 06:56:57,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 06:56:57,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:57,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:57,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231117733] [2025-03-04 06:56:57,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231117733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:57,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:57,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062397234] [2025-03-04 06:56:57,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:57,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:57,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:57,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:57,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2025-03-04 06:56:57,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 255 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:57,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:57,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2025-03-04 06:56:57,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:58,507 INFO L124 PetriNetUnfolderBase]: 1650/7393 cut-off events. [2025-03-04 06:56:58,507 INFO L125 PetriNetUnfolderBase]: For 653/671 co-relation queries the response was YES. [2025-03-04 06:56:58,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10613 conditions, 7393 events. 1650/7393 cut-off events. For 653/671 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 62282 event pairs, 1169 based on Foata normal form. 0/6610 useless extension candidates. Maximal degree in co-relation 10582. Up to 2412 conditions per place. [2025-03-04 06:56:58,572 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 41 selfloop transitions, 11 changer transitions 0/247 dead transitions. [2025-03-04 06:56:58,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 247 transitions, 646 flow [2025-03-04 06:56:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2025-03-04 06:56:58,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8063725490196079 [2025-03-04 06:56:58,574 INFO L175 Difference]: Start difference. First operand has 252 places, 255 transitions, 558 flow. Second operand 3 states and 658 transitions. [2025-03-04 06:56:58,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 247 transitions, 646 flow [2025-03-04 06:56:58,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 247 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:58,579 INFO L231 Difference]: Finished difference. Result has 240 places, 243 transitions, 552 flow [2025-03-04 06:56:58,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=240, PETRI_TRANSITIONS=243} [2025-03-04 06:56:58,580 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2025-03-04 06:56:58,581 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 243 transitions, 552 flow [2025-03-04 06:56:58,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:58,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:58,581 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:56:58,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:56:58,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1676252218, now seen corresponding path program 1 times [2025-03-04 06:56:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309233103] [2025-03-04 06:56:58,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:58,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:56:58,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:56:58,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:58,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:58,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309233103] [2025-03-04 06:56:58,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309233103] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:58,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:58,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:56:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719541973] [2025-03-04 06:56:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:58,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:58,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:58,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:58,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:58,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2025-03-04 06:56:58,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 243 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:58,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:58,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2025-03-04 06:56:58,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:59,267 INFO L124 PetriNetUnfolderBase]: 630/4819 cut-off events. [2025-03-04 06:56:59,268 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2025-03-04 06:56:59,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6501 conditions, 4819 events. 630/4819 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 40399 event pairs, 228 based on Foata normal form. 42/4348 useless extension candidates. Maximal degree in co-relation 4159. Up to 682 conditions per place. [2025-03-04 06:56:59,313 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 37 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2025-03-04 06:56:59,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 698 flow [2025-03-04 06:56:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2025-03-04 06:56:59,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2025-03-04 06:56:59,315 INFO L175 Difference]: Start difference. First operand has 240 places, 243 transitions, 552 flow. Second operand 3 states and 736 transitions. [2025-03-04 06:56:59,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 698 flow [2025-03-04 06:56:59,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:59,321 INFO L231 Difference]: Finished difference. Result has 241 places, 247 transitions, 578 flow [2025-03-04 06:56:59,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=247} [2025-03-04 06:56:59,322 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -18 predicate places. [2025-03-04 06:56:59,322 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 247 transitions, 578 flow [2025-03-04 06:56:59,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:59,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:59,322 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:59,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:56:59,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:56:59,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash -620817553, now seen corresponding path program 1 times [2025-03-04 06:56:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913962864] [2025-03-04 06:56:59,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:59,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 06:56:59,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 06:56:59,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:59,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:59,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:59,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913962864] [2025-03-04 06:56:59,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913962864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:59,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400229220] [2025-03-04 06:56:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:59,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:56:59,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:59,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:56:59,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:56:59,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 272 [2025-03-04 06:56:59,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 247 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:56:59,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:59,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 272 [2025-03-04 06:56:59,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:00,532 INFO L124 PetriNetUnfolderBase]: 1558/7502 cut-off events. [2025-03-04 06:57:00,532 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2025-03-04 06:57:00,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11144 conditions, 7502 events. 1558/7502 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 63429 event pairs, 74 based on Foata normal form. 0/6971 useless extension candidates. Maximal degree in co-relation 5065. Up to 2728 conditions per place. [2025-03-04 06:57:00,574 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 62 selfloop transitions, 6 changer transitions 0/262 dead transitions. [2025-03-04 06:57:00,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 262 transitions, 744 flow [2025-03-04 06:57:00,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:57:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:57:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2025-03-04 06:57:00,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8082107843137255 [2025-03-04 06:57:00,577 INFO L175 Difference]: Start difference. First operand has 241 places, 247 transitions, 578 flow. Second operand 6 states and 1319 transitions. [2025-03-04 06:57:00,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 262 transitions, 744 flow [2025-03-04 06:57:00,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 262 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:57:00,582 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 580 flow [2025-03-04 06:57:00,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2025-03-04 06:57:00,583 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -15 predicate places. [2025-03-04 06:57:00,583 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 580 flow [2025-03-04 06:57:00,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:00,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:00,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:00,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:57:00,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:57:00,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:00,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1172113461, now seen corresponding path program 1 times [2025-03-04 06:57:00,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:00,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945810438] [2025-03-04 06:57:00,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:00,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:00,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:57:00,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:57:00,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:00,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:00,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945810438] [2025-03-04 06:57:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945810438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:00,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:00,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:57:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811163666] [2025-03-04 06:57:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:00,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:00,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:00,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:00,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:00,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2025-03-04 06:57:00,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:00,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:00,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2025-03-04 06:57:00,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:01,333 INFO L124 PetriNetUnfolderBase]: 1177/6971 cut-off events. [2025-03-04 06:57:01,334 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2025-03-04 06:57:01,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9778 conditions, 6971 events. 1177/6971 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 60536 event pairs, 990 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 4376. Up to 2049 conditions per place. [2025-03-04 06:57:01,369 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2025-03-04 06:57:01,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 249 transitions, 676 flow [2025-03-04 06:57:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:57:01,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:57:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2025-03-04 06:57:01,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2025-03-04 06:57:01,371 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 580 flow. Second operand 3 states and 694 transitions. [2025-03-04 06:57:01,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 249 transitions, 676 flow [2025-03-04 06:57:01,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:57:01,375 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 570 flow [2025-03-04 06:57:01,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2025-03-04 06:57:01,375 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2025-03-04 06:57:01,376 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 570 flow [2025-03-04 06:57:01,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:01,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:01,376 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:01,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:57:01,376 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:57:01,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1565853775, now seen corresponding path program 1 times [2025-03-04 06:57:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:01,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629990800] [2025-03-04 06:57:01,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:01,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:01,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 06:57:01,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 06:57:01,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:01,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:01,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:01,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629990800] [2025-03-04 06:57:01,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629990800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:01,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:01,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:57:01,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344134009] [2025-03-04 06:57:01,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:01,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:57:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:01,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:57:01,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:57:01,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 272 [2025-03-04 06:57:01,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 570 flow. Second operand has 5 states, 5 states have (on average 224.8) internal successors, (1124), 5 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:01,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:01,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 272 [2025-03-04 06:57:01,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:02,069 INFO L124 PetriNetUnfolderBase]: 765/5184 cut-off events. [2025-03-04 06:57:02,069 INFO L125 PetriNetUnfolderBase]: For 986/1024 co-relation queries the response was YES. [2025-03-04 06:57:02,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7170 conditions, 5184 events. 765/5184 cut-off events. For 986/1024 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 43246 event pairs, 156 based on Foata normal form. 3/4681 useless extension candidates. Maximal degree in co-relation 5120. Up to 647 conditions per place. [2025-03-04 06:57:02,097 INFO L140 encePairwiseOnDemand]: 259/272 looper letters, 48 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2025-03-04 06:57:02,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 269 transitions, 768 flow [2025-03-04 06:57:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:57:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:57:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1402 transitions. [2025-03-04 06:57:02,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8590686274509803 [2025-03-04 06:57:02,100 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 570 flow. Second operand 6 states and 1402 transitions. [2025-03-04 06:57:02,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 269 transitions, 768 flow [2025-03-04 06:57:02,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 269 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:57:02,105 INFO L231 Difference]: Finished difference. Result has 247 places, 249 transitions, 642 flow [2025-03-04 06:57:02,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=642, PETRI_PLACES=247, PETRI_TRANSITIONS=249} [2025-03-04 06:57:02,105 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -12 predicate places. [2025-03-04 06:57:02,105 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 249 transitions, 642 flow [2025-03-04 06:57:02,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 224.8) internal successors, (1124), 5 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:02,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:02,106 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:02,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:57:02,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:57:02,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1107474393, now seen corresponding path program 1 times [2025-03-04 06:57:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:02,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215628814] [2025-03-04 06:57:02,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:02,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 06:57:02,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 06:57:02,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:02,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 06:57:02,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:02,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215628814] [2025-03-04 06:57:02,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215628814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:02,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:02,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:57:02,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948760775] [2025-03-04 06:57:02,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:02,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:02,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:02,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:02,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:02,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2025-03-04 06:57:02,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 249 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 219.66666666666666) internal successors, (659), 3 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:02,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:02,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2025-03-04 06:57:02,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:02,998 INFO L124 PetriNetUnfolderBase]: 1105/6399 cut-off events. [2025-03-04 06:57:02,999 INFO L125 PetriNetUnfolderBase]: For 1132/1132 co-relation queries the response was YES. [2025-03-04 06:57:03,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9502 conditions, 6399 events. 1105/6399 cut-off events. For 1132/1132 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 54397 event pairs, 944 based on Foata normal form. 0/5864 useless extension candidates. Maximal degree in co-relation 5254. Up to 1922 conditions per place. [2025-03-04 06:57:03,060 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2025-03-04 06:57:03,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 252 transitions, 738 flow [2025-03-04 06:57:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:57:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:57:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2025-03-04 06:57:03,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2025-03-04 06:57:03,062 INFO L175 Difference]: Start difference. First operand has 247 places, 249 transitions, 642 flow. Second operand 3 states and 694 transitions. [2025-03-04 06:57:03,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 252 transitions, 738 flow [2025-03-04 06:57:03,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 252 transitions, 724 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-03-04 06:57:03,069 INFO L231 Difference]: Finished difference. Result has 247 places, 248 transitions, 630 flow [2025-03-04 06:57:03,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=247, PETRI_TRANSITIONS=248} [2025-03-04 06:57:03,069 INFO L279 CegarLoopForPetriNet]: 259 programPoint places, -12 predicate places. [2025-03-04 06:57:03,069 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 248 transitions, 630 flow [2025-03-04 06:57:03,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.66666666666666) internal successors, (659), 3 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:03,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:03,070 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:03,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 06:57:03,070 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 06:57:03,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:03,071 INFO L85 PathProgramCache]: Analyzing trace with hash -791157096, now seen corresponding path program 1 times [2025-03-04 06:57:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554250710] [2025-03-04 06:57:03,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:03,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 06:57:03,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 06:57:03,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:03,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:57:03,088 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:57:03,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 06:57:03,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 06:57:03,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:03,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:57:03,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:57:03,107 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:57:03,107 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2025-03-04 06:57:03,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2025-03-04 06:57:03,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2025-03-04 06:57:03,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2025-03-04 06:57:03,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2025-03-04 06:57:03,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2025-03-04 06:57:03,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2025-03-04 06:57:03,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2025-03-04 06:57:03,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:57:03,110 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:03,111 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:57:03,111 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-04 06:57:03,137 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2025-03-04 06:57:03,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 724 flow [2025-03-04 06:57:03,830 INFO L124 PetriNetUnfolderBase]: 544/5934 cut-off events. [2025-03-04 06:57:03,830 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2025-03-04 06:57:03,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 5934 events. 544/5934 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 46756 event pairs, 64 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 3413. Up to 192 conditions per place. [2025-03-04 06:57:03,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 724 flow [2025-03-04 06:57:03,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 326 transitions, 724 flow [2025-03-04 06:57:03,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:57:03,980 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;@6fc95fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:57:03,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-03-04 06:57:03,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:57:03,981 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-03-04 06:57:03,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:57:03,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:03,981 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] [2025-03-04 06:57:03,982 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-04 06:57:03,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:03,982 INFO L85 PathProgramCache]: Analyzing trace with hash 839884589, now seen corresponding path program 1 times [2025-03-04 06:57:03,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:03,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357174126] [2025-03-04 06:57:03,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:03,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:03,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 06:57:03,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 06:57:03,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:03,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:03,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:03,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357174126] [2025-03-04 06:57:03,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357174126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:03,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:03,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:57:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108753194] [2025-03-04 06:57:03,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:03,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:03,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:03,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:03,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:04,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2025-03-04 06:57:04,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 326 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:04,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:04,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2025-03-04 06:57:04,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:10,824 INFO L124 PetriNetUnfolderBase]: 12815/49237 cut-off events. [2025-03-04 06:57:10,824 INFO L125 PetriNetUnfolderBase]: For 7796/8342 co-relation queries the response was YES. [2025-03-04 06:57:11,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71260 conditions, 49237 events. 12815/49237 cut-off events. For 7796/8342 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 571481 event pairs, 10886 based on Foata normal form. 19499/60611 useless extension candidates. Maximal degree in co-relation 36872. Up to 19303 conditions per place. [2025-03-04 06:57:11,683 INFO L140 encePairwiseOnDemand]: 307/326 looper letters, 47 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2025-03-04 06:57:11,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 303 transitions, 776 flow [2025-03-04 06:57:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:57:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:57:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2025-03-04 06:57:11,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2025-03-04 06:57:11,685 INFO L175 Difference]: Start difference. First operand has 308 places, 326 transitions, 724 flow. Second operand 3 states and 837 transitions. [2025-03-04 06:57:11,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 303 transitions, 776 flow [2025-03-04 06:57:11,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 303 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:57:11,694 INFO L231 Difference]: Finished difference. Result has 297 places, 303 transitions, 682 flow [2025-03-04 06:57:11,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=297, PETRI_TRANSITIONS=303} [2025-03-04 06:57:11,695 INFO L279 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2025-03-04 06:57:11,695 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 303 transitions, 682 flow [2025-03-04 06:57:11,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:11,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:11,695 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] [2025-03-04 06:57:11,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 06:57:11,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-04 06:57:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1476749506, now seen corresponding path program 1 times [2025-03-04 06:57:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3974482] [2025-03-04 06:57:11,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:11,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:11,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 06:57:11,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 06:57:11,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:11,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:11,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:11,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3974482] [2025-03-04 06:57:11,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3974482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:11,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:11,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:57:11,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154858843] [2025-03-04 06:57:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:11,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:11,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:11,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:11,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:11,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 326 [2025-03-04 06:57:11,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 303 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:11,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:11,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 326 [2025-03-04 06:57:11,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:19,697 INFO L124 PetriNetUnfolderBase]: 17515/54756 cut-off events. [2025-03-04 06:57:19,697 INFO L125 PetriNetUnfolderBase]: For 7563/8011 co-relation queries the response was YES. [2025-03-04 06:57:20,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84323 conditions, 54756 events. 17515/54756 cut-off events. For 7563/8011 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 594802 event pairs, 12762 based on Foata normal form. 0/49547 useless extension candidates. Maximal degree in co-relation 84290. Up to 22195 conditions per place. [2025-03-04 06:57:20,734 INFO L140 encePairwiseOnDemand]: 303/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/297 dead transitions. [2025-03-04 06:57:20,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 297 transitions, 794 flow [2025-03-04 06:57:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:57:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:57:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2025-03-04 06:57:20,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8087934560327198 [2025-03-04 06:57:20,735 INFO L175 Difference]: Start difference. First operand has 297 places, 303 transitions, 682 flow. Second operand 3 states and 791 transitions. [2025-03-04 06:57:20,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 297 transitions, 794 flow [2025-03-04 06:57:20,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 297 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:57:20,748 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 676 flow [2025-03-04 06:57:20,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2025-03-04 06:57:20,749 INFO L279 CegarLoopForPetriNet]: 308 programPoint places, -23 predicate places. [2025-03-04 06:57:20,749 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 676 flow [2025-03-04 06:57:20,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:20,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:20,749 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:20,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 06:57:20,749 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-04 06:57:20,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1921695034, now seen corresponding path program 1 times [2025-03-04 06:57:20,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:20,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658020502] [2025-03-04 06:57:20,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:20,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:20,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:57:20,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:57:20,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:20,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:20,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:20,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658020502] [2025-03-04 06:57:20,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658020502] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:20,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:20,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:57:20,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597552046] [2025-03-04 06:57:20,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:20,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:20,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:20,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:20,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:20,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 326 [2025-03-04 06:57:20,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:20,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:20,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 326 [2025-03-04 06:57:20,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:25,899 INFO L124 PetriNetUnfolderBase]: 8365/37765 cut-off events. [2025-03-04 06:57:25,899 INFO L125 PetriNetUnfolderBase]: For 10184/10738 co-relation queries the response was YES. [2025-03-04 06:57:26,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55596 conditions, 37765 events. 8365/37765 cut-off events. For 10184/10738 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 458703 event pairs, 3344 based on Foata normal form. 300/33765 useless extension candidates. Maximal degree in co-relation 37121. Up to 8245 conditions per place. [2025-03-04 06:57:26,346 INFO L140 encePairwiseOnDemand]: 314/326 looper letters, 51 selfloop transitions, 8 changer transitions 0/313 dead transitions. [2025-03-04 06:57:26,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 874 flow [2025-03-04 06:57:26,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:57:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:57:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2025-03-04 06:57:26,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8926380368098159 [2025-03-04 06:57:26,347 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 676 flow. Second operand 3 states and 873 transitions. [2025-03-04 06:57:26,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 874 flow [2025-03-04 06:57:26,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:57:26,361 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 702 flow [2025-03-04 06:57:26,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2025-03-04 06:57:26,362 INFO L279 CegarLoopForPetriNet]: 308 programPoint places, -22 predicate places. [2025-03-04 06:57:26,362 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 702 flow [2025-03-04 06:57:26,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:26,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:26,363 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:26,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 06:57:26,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-04 06:57:26,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:26,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1891404749, now seen corresponding path program 1 times [2025-03-04 06:57:26,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894518687] [2025-03-04 06:57:26,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:26,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:26,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 06:57:26,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 06:57:26,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:26,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:26,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:26,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894518687] [2025-03-04 06:57:26,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894518687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:26,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:26,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:57:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195796589] [2025-03-04 06:57:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:26,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:57:26,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:26,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:57:26,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:57:26,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 326 [2025-03-04 06:57:26,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:26,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:26,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 326 [2025-03-04 06:57:26,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:57:36,476 INFO L124 PetriNetUnfolderBase]: 19159/64405 cut-off events. [2025-03-04 06:57:36,476 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2025-03-04 06:57:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101733 conditions, 64405 events. 19159/64405 cut-off events. For 9276/9276 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 749467 event pairs, 801 based on Foata normal form. 0/60778 useless extension candidates. Maximal degree in co-relation 49665. Up to 29355 conditions per place. [2025-03-04 06:57:37,459 INFO L140 encePairwiseOnDemand]: 320/326 looper letters, 78 selfloop transitions, 6 changer transitions 0/318 dead transitions. [2025-03-04 06:57:37,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 318 transitions, 916 flow [2025-03-04 06:57:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:57:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:57:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1581 transitions. [2025-03-04 06:57:37,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.808282208588957 [2025-03-04 06:57:37,461 INFO L175 Difference]: Start difference. First operand has 286 places, 295 transitions, 702 flow. Second operand 6 states and 1581 transitions. [2025-03-04 06:57:37,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 318 transitions, 916 flow [2025-03-04 06:57:37,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 318 transitions, 908 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:57:37,469 INFO L231 Difference]: Finished difference. Result has 289 places, 294 transitions, 704 flow [2025-03-04 06:57:37,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=704, PETRI_PLACES=289, PETRI_TRANSITIONS=294} [2025-03-04 06:57:37,470 INFO L279 CegarLoopForPetriNet]: 308 programPoint places, -19 predicate places. [2025-03-04 06:57:37,470 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 294 transitions, 704 flow [2025-03-04 06:57:37,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:37,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:57:37,471 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:57:37,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 06:57:37,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-04 06:57:37,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:57:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 770694568, now seen corresponding path program 1 times [2025-03-04 06:57:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:57:37,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478771343] [2025-03-04 06:57:37,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:57:37,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:57:37,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:57:37,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:57:37,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:57:37,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:57:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:57:37,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:57:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478771343] [2025-03-04 06:57:37,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478771343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:57:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:57:37,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:57:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80829675] [2025-03-04 06:57:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:57:37,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:57:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:57:37,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:57:37,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:57:37,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2025-03-04 06:57:37,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 294 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:57:37,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:57:37,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2025-03-04 06:57:37,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand