./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:18:26,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:18:26,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:18:26,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:18:26,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:18:26,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:18:26,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:18:26,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:18:26,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:18:26,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:18:26,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:18:26,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:18:26,600 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:18:26,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:18:26,601 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:18:26,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:26,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:18:26,602 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2025-02-06 09:18:26,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:18:26,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:18:26,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:18:26,811 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:18:26,812 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:18:26,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/barrier_2t.i [2025-02-06 09:18:27,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f92fb732/e68568fdfa294c94a77a77b49bf2321f/FLAG7022189f2 [2025-02-06 09:18:28,221 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:18:28,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_2t.i [2025-02-06 09:18:28,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f92fb732/e68568fdfa294c94a77a77b49bf2321f/FLAG7022189f2 [2025-02-06 09:18:28,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f92fb732/e68568fdfa294c94a77a77b49bf2321f [2025-02-06 09:18:28,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:18:28,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:18:28,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:28,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:18:28,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:18:28,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db11b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28, skipping insertion in model container [2025-02-06 09:18:28,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:18:28,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:28,612 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:18:28,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:28,720 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:18:28,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28 WrapperNode [2025-02-06 09:18:28,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:28,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:28,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:18:28,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:18:28,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,782 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1010 [2025-02-06 09:18:28,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:28,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:18:28,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:18:28,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:18:28,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,838 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:18:28,863 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:18:28,863 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:18:28,863 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:18:28,864 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (1/1) ... [2025-02-06 09:18:28,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:18:28,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:18:28,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-06 09:18:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:18:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:18:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:18:28,921 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:18:29,061 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:18:29,063 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:18:30,299 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:18:30,299 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:18:30,365 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:18:30,365 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:18:30,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:30 BoogieIcfgContainer [2025-02-06 09:18:30,365 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:18:30,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:18:30,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:18:30,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:18:30,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:18:28" (1/3) ... [2025-02-06 09:18:30,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c033b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:30, skipping insertion in model container [2025-02-06 09:18:30,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:28" (2/3) ... [2025-02-06 09:18:30,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c033b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:30, skipping insertion in model container [2025-02-06 09:18:30,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:30" (3/3) ... [2025-02-06 09:18:30,376 INFO L128 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2025-02-06 09:18:30,390 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:18:30,391 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG barrier_2t.i that has 2 procedures, 1120 locations, 1 initial locations, 20 loop locations, and 99 error locations. [2025-02-06 09:18:30,391 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:18:30,562 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:18:30,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1123 places, 1201 transitions, 2409 flow [2025-02-06 09:18:31,134 INFO L124 PetriNetUnfolderBase]: 122/1776 cut-off events. [2025-02-06 09:18:31,136 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:18:31,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 1776 events. 122/1776 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7222 event pairs, 0 based on Foata normal form. 0/1504 useless extension candidates. Maximal degree in co-relation 1081. Up to 4 conditions per place. [2025-02-06 09:18:31,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 1123 places, 1201 transitions, 2409 flow [2025-02-06 09:18:31,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1123 places, 1201 transitions, 2409 flow [2025-02-06 09:18:31,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:18:31,228 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;@4c93b947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:18:31,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2025-02-06 09:18:31,235 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:18:31,235 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-02-06 09:18:31,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:18:31,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:18:31,237 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] [2025-02-06 09:18:31,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:18:31,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:18:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1986934161, now seen corresponding path program 1 times [2025-02-06 09:18:31,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:18:31,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118849480] [2025-02-06 09:18:31,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:18:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:18:31,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 09:18:31,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 09:18:31,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:18:31,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:18:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:18:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:18:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118849480] [2025-02-06 09:18:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118849480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:18:31,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:18:31,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:18:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041953380] [2025-02-06 09:18:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:18:31,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:18:31,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:18:31,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:18:31,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:18:33,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 1201 [2025-02-06 09:18:33,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1123 places, 1201 transitions, 2409 flow. Second operand has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:33,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:18:33,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 1201 [2025-02-06 09:18:33,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:18:46,861 INFO L124 PetriNetUnfolderBase]: 18622/87176 cut-off events. [2025-02-06 09:18:46,861 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-02-06 09:18:46,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120472 conditions, 87176 events. 18622/87176 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 1066952 event pairs, 16093 based on Foata normal form. 6985/83553 useless extension candidates. Maximal degree in co-relation 119655. Up to 33286 conditions per place. [2025-02-06 09:18:47,151 INFO L140 encePairwiseOnDemand]: 1141/1201 looper letters, 276 selfloop transitions, 5 changer transitions 3/1123 dead transitions. [2025-02-06 09:18:47,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1104 places, 1123 transitions, 2815 flow [2025-02-06 09:18:47,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:18:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:18:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5526 transitions. [2025-02-06 09:18:47,183 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7668609492089925 [2025-02-06 09:18:47,184 INFO L175 Difference]: Start difference. First operand has 1123 places, 1201 transitions, 2409 flow. Second operand 6 states and 5526 transitions. [2025-02-06 09:18:47,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1104 places, 1123 transitions, 2815 flow [2025-02-06 09:18:47,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1104 places, 1123 transitions, 2815 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:18:47,211 INFO L231 Difference]: Finished difference. Result has 1104 places, 1120 transitions, 2257 flow [2025-02-06 09:18:47,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1201, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=1099, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=1104, PETRI_TRANSITIONS=1120} [2025-02-06 09:18:47,218 INFO L279 CegarLoopForPetriNet]: 1123 programPoint places, -19 predicate places. [2025-02-06 09:18:47,219 INFO L471 AbstractCegarLoop]: Abstraction has has 1104 places, 1120 transitions, 2257 flow [2025-02-06 09:18:47,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:47,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:18:47,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:18:47,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:18:47,222 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:18:47,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:18:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2131578745, now seen corresponding path program 1 times [2025-02-06 09:18:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:18:47,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948927978] [2025-02-06 09:18:47,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:18:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:18:47,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 09:18:47,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 09:18:47,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:18:47,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:18:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:18:47,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:18:47,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948927978] [2025-02-06 09:18:47,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948927978] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:18:47,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:18:47,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:18:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251639994] [2025-02-06 09:18:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:18:47,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:18:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:18:47,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:18:47,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:18:47,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1111 out of 1201 [2025-02-06 09:18:47,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1104 places, 1120 transitions, 2257 flow. Second operand has 3 states, 3 states have (on average 1112.3333333333333) internal successors, (3337), 3 states have internal predecessors, (3337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:47,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:18:47,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1111 of 1201 [2025-02-06 09:18:47,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:18:48,743 INFO L124 PetriNetUnfolderBase]: 563/10024 cut-off events. [2025-02-06 09:18:48,743 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:18:48,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10649 conditions, 10024 events. 563/10024 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 91957 event pairs, 210 based on Foata normal form. 1/8613 useless extension candidates. Maximal degree in co-relation 10565. Up to 608 conditions per place. [2025-02-06 09:18:48,815 INFO L140 encePairwiseOnDemand]: 1198/1201 looper letters, 35 selfloop transitions, 2 changer transitions 0/1121 dead transitions. [2025-02-06 09:18:48,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1103 places, 1121 transitions, 2333 flow [2025-02-06 09:18:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:18:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:18:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3371 transitions. [2025-02-06 09:18:48,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.935609214543436 [2025-02-06 09:18:48,821 INFO L175 Difference]: Start difference. First operand has 1104 places, 1120 transitions, 2257 flow. Second operand 3 states and 3371 transitions. [2025-02-06 09:18:48,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1103 places, 1121 transitions, 2333 flow [2025-02-06 09:18:48,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1098 places, 1121 transitions, 2323 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:18:48,835 INFO L231 Difference]: Finished difference. Result has 1099 places, 1121 transitions, 2259 flow [2025-02-06 09:18:48,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1201, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=1096, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2259, PETRI_PLACES=1099, PETRI_TRANSITIONS=1121} [2025-02-06 09:18:48,837 INFO L279 CegarLoopForPetriNet]: 1123 programPoint places, -24 predicate places. [2025-02-06 09:18:48,837 INFO L471 AbstractCegarLoop]: Abstraction has has 1099 places, 1121 transitions, 2259 flow [2025-02-06 09:18:48,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1112.3333333333333) internal successors, (3337), 3 states have internal predecessors, (3337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:48,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:18:48,839 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:18:48,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:18:48,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:18:48,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:18:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash 941546390, now seen corresponding path program 1 times [2025-02-06 09:18:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:18:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783494905] [2025-02-06 09:18:48,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:18:48,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:18:48,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 09:18:48,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 09:18:48,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:18:48,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:18:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:18:49,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:18:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783494905] [2025-02-06 09:18:49,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783494905] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:18:49,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:18:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:18:49,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271732040] [2025-02-06 09:18:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:18:49,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:18:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:18:49,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:18:49,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:18:50,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 1201 [2025-02-06 09:18:50,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1099 places, 1121 transitions, 2259 flow. Second operand has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:50,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:18:50,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 1201 [2025-02-06 09:18:50,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:03,614 INFO L124 PetriNetUnfolderBase]: 18622/87200 cut-off events. [2025-02-06 09:19:03,615 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-06 09:19:03,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120511 conditions, 87200 events. 18622/87200 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 1066966 event pairs, 16093 based on Foata normal form. 0/76594 useless extension candidates. Maximal degree in co-relation 120432. Up to 33289 conditions per place. [2025-02-06 09:19:03,908 INFO L140 encePairwiseOnDemand]: 1195/1201 looper letters, 277 selfloop transitions, 5 changer transitions 0/1120 dead transitions. [2025-02-06 09:19:03,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1103 places, 1120 transitions, 2821 flow [2025-02-06 09:19:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:03,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5472 transitions. [2025-02-06 09:19:03,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7593671940049959 [2025-02-06 09:19:03,917 INFO L175 Difference]: Start difference. First operand has 1099 places, 1121 transitions, 2259 flow. Second operand 6 states and 5472 transitions. [2025-02-06 09:19:03,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1103 places, 1120 transitions, 2821 flow [2025-02-06 09:19:03,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1102 places, 1120 transitions, 2819 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:19:03,929 INFO L231 Difference]: Finished difference. Result has 1102 places, 1120 transitions, 2265 flow [2025-02-06 09:19:03,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1201, PETRI_DIFFERENCE_MINUEND_FLOW=2255, PETRI_DIFFERENCE_MINUEND_PLACES=1097, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2265, PETRI_PLACES=1102, PETRI_TRANSITIONS=1120} [2025-02-06 09:19:03,931 INFO L279 CegarLoopForPetriNet]: 1123 programPoint places, -21 predicate places. [2025-02-06 09:19:03,931 INFO L471 AbstractCegarLoop]: Abstraction has has 1102 places, 1120 transitions, 2265 flow [2025-02-06 09:19:03,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:03,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:03,933 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:19:03,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:19:03,933 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:19:03,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1931968675, now seen corresponding path program 1 times [2025-02-06 09:19:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711801469] [2025-02-06 09:19:03,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:04,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-06 09:19:04,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 09:19:04,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:04,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:04,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:04,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711801469] [2025-02-06 09:19:04,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711801469] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:04,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:04,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:04,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604183316] [2025-02-06 09:19:04,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:04,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:04,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:04,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:04,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:05,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 1201 [2025-02-06 09:19:05,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1102 places, 1120 transitions, 2265 flow. Second operand has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:05,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:05,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 1201 [2025-02-06 09:19:05,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:18,199 INFO L124 PetriNetUnfolderBase]: 18622/87198 cut-off events. [2025-02-06 09:19:18,199 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-02-06 09:19:18,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120518 conditions, 87198 events. 18622/87198 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 1067002 event pairs, 16093 based on Foata normal form. 0/76594 useless extension candidates. Maximal degree in co-relation 120425. Up to 33289 conditions per place. [2025-02-06 09:19:18,461 INFO L140 encePairwiseOnDemand]: 1195/1201 looper letters, 277 selfloop transitions, 5 changer transitions 0/1119 dead transitions. [2025-02-06 09:19:18,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1106 places, 1119 transitions, 2827 flow [2025-02-06 09:19:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:18,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5472 transitions. [2025-02-06 09:19:18,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7593671940049959 [2025-02-06 09:19:18,468 INFO L175 Difference]: Start difference. First operand has 1102 places, 1120 transitions, 2265 flow. Second operand 6 states and 5472 transitions. [2025-02-06 09:19:18,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1106 places, 1119 transitions, 2827 flow [2025-02-06 09:19:18,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1101 places, 1119 transitions, 2817 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:18,481 INFO L231 Difference]: Finished difference. Result has 1101 places, 1119 transitions, 2263 flow [2025-02-06 09:19:18,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1201, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=1096, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2263, PETRI_PLACES=1101, PETRI_TRANSITIONS=1119} [2025-02-06 09:19:18,484 INFO L279 CegarLoopForPetriNet]: 1123 programPoint places, -22 predicate places. [2025-02-06 09:19:18,484 INFO L471 AbstractCegarLoop]: Abstraction has has 1101 places, 1119 transitions, 2263 flow [2025-02-06 09:19:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 866.5) internal successors, (5199), 6 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:18,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:18,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:19:18,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:19:18,487 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:19:18,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1104904711, now seen corresponding path program 1 times [2025-02-06 09:19:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:18,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054089896] [2025-02-06 09:19:18,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:18,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 09:19:18,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 09:19:18,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:18,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:18,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:18,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054089896] [2025-02-06 09:19:18,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054089896] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:19:18,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600497812] [2025-02-06 09:19:18,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:18,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:19:18,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:19:18,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:19:18,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 09:19:18,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 09:19:18,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:18,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:18,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:19:18,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:19:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:18,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:19:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600497812] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:19:18,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:19:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-02-06 09:19:18,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835384734] [2025-02-06 09:19:18,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:19:18,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:19:18,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:18,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:19:18,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:19:18,859 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1110 out of 1201 [2025-02-06 09:19:18,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1101 places, 1119 transitions, 2263 flow. Second operand has 5 states, 5 states have (on average 1111.8) internal successors, (5559), 5 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:18,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:18,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1110 of 1201 [2025-02-06 09:19:18,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:20,409 INFO L124 PetriNetUnfolderBase]: 563/10022 cut-off events. [2025-02-06 09:19:20,409 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-06 09:19:20,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10655 conditions, 10022 events. 563/10022 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 91850 event pairs, 210 based on Foata normal form. 1/8615 useless extension candidates. Maximal degree in co-relation 10548. Up to 607 conditions per place. [2025-02-06 09:19:20,469 INFO L140 encePairwiseOnDemand]: 1197/1201 looper letters, 36 selfloop transitions, 4 changer transitions 0/1121 dead transitions. [2025-02-06 09:19:20,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1104 places, 1121 transitions, 2347 flow [2025-02-06 09:19:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:19:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 09:19:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4481 transitions. [2025-02-06 09:19:20,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9327643630308077 [2025-02-06 09:19:20,476 INFO L175 Difference]: Start difference. First operand has 1101 places, 1119 transitions, 2263 flow. Second operand 4 states and 4481 transitions. [2025-02-06 09:19:20,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1104 places, 1121 transitions, 2347 flow [2025-02-06 09:19:20,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1099 places, 1121 transitions, 2337 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:20,486 INFO L231 Difference]: Finished difference. Result has 1101 places, 1120 transitions, 2273 flow [2025-02-06 09:19:20,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1201, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=1096, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2273, PETRI_PLACES=1101, PETRI_TRANSITIONS=1120} [2025-02-06 09:19:20,487 INFO L279 CegarLoopForPetriNet]: 1123 programPoint places, -22 predicate places. [2025-02-06 09:19:20,487 INFO L471 AbstractCegarLoop]: Abstraction has has 1101 places, 1120 transitions, 2273 flow [2025-02-06 09:19:20,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1111.8) internal successors, (5559), 5 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:20,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:20,490 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:19:20,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:19:20,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:20,691 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-02-06 09:19:20,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:20,691 INFO L85 PathProgramCache]: Analyzing trace with hash 129821817, now seen corresponding path program 2 times [2025-02-06 09:19:20,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:20,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156951991] [2025-02-06 09:19:20,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:19:20,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:20,714 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-02-06 09:19:20,719 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-02-06 09:19:20,719 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:19:20,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-02-06 09:19:20,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:20,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156951991] [2025-02-06 09:19:20,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156951991] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:20,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:20,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:20,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565685516] [2025-02-06 09:19:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:20,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:20,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:20,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:20,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:21,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 870 out of 1201 [2025-02-06 09:19:21,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1101 places, 1120 transitions, 2273 flow. Second operand has 6 states, 6 states have (on average 873.3333333333334) internal successors, (5240), 6 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:21,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:21,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 870 of 1201 [2025-02-06 09:19:21,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand