./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-counter-outer-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-counter-outer-race-2.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 d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:31:26,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:31:27,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:31:27,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:31:27,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:31:27,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:31:27,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:31:27,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:31:27,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:31:27,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:31:27,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:31:27,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:31:27,030 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:31:27,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:31:27,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:31:27,030 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:31:27,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:31:27,031 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:31:27,032 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:31:27,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:31:27,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:31:27,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:31:27,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:31:27,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:31:27,034 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 -> d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 [2025-04-30 10:31:27,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:31:27,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:31:27,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:31:27,267 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:31:27,268 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:31:27,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-counter-outer-race-2.i [2025-04-30 10:31:28,606 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a863469af/5840d792aef444e186d3cda1878cbdc7/FLAG66bcb61f7 [2025-04-30 10:31:28,823 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:31:28,824 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/thread-join-counter-outer-race-2.i [2025-04-30 10:31:28,838 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a863469af/5840d792aef444e186d3cda1878cbdc7/FLAG66bcb61f7 [2025-04-30 10:31:29,607 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a863469af/5840d792aef444e186d3cda1878cbdc7 [2025-04-30 10:31:29,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:31:29,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:31:29,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:31:29,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:31:29,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:31:29,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:29,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db72b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29, skipping insertion in model container [2025-04-30 10:31:29,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:29,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:31:29,877 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:31:29,896 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:31:29,958 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:31:29,986 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:31:29,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29 WrapperNode [2025-04-30 10:31:29,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:31:29,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:31:29,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:31:29,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:31:29,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,028 INFO L138 Inliner]: procedures = 159, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 194 [2025-04-30 10:31:30,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:31:30,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:31:30,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:31:30,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:31:30,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,053 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:31:30,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:31:30,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:31:30,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:31:30,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (1/1) ... [2025-04-30 10:31:30,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:31:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:31:30,088 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) [2025-04-30 10:31:30,093 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 [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-30 10:31:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:31:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:31:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:31:30,108 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:31:30,205 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:31:30,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:31:30,476 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:31:30,476 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:31:30,510 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:31:30,510 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:31:30,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:31:30 BoogieIcfgContainer [2025-04-30 10:31:30,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:31:30,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:31:30,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:31:30,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:31:30,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:31:29" (1/3) ... [2025-04-30 10:31:30,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd18d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:31:30, skipping insertion in model container [2025-04-30 10:31:30,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:31:29" (2/3) ... [2025-04-30 10:31:30,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd18d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:31:30, skipping insertion in model container [2025-04-30 10:31:30,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:31:30" (3/3) ... [2025-04-30 10:31:30,517 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race-2.i [2025-04-30 10:31:30,528 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:31:30,530 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-counter-outer-race-2.i that has 2 procedures, 230 locations, 232 edges, 1 initial locations, 2 loop locations, and 7 error locations. [2025-04-30 10:31:30,530 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:31:30,599 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:31:30,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 233 transitions, 470 flow [2025-04-30 10:31:30,746 INFO L116 PetriNetUnfolderBase]: 5/274 cut-off events. [2025-04-30 10:31:30,748 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:31:30,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 274 events. 5/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 192. Up to 4 conditions per place. [2025-04-30 10:31:30,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 233 transitions, 470 flow [2025-04-30 10:31:30,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 233 transitions, 470 flow [2025-04-30 10:31:30,765 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:31:30,776 INFO L340 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;@48f2db44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:31:30,776 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-04-30 10:31:30,812 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:31:30,812 INFO L116 PetriNetUnfolderBase]: 1/161 cut-off events. [2025-04-30 10:31:30,812 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:31:30,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:30,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:30,814 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:30,818 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:30,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1599183121, now seen corresponding path program 1 times [2025-04-30 10:31:30,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:30,824 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819764629] [2025-04-30 10:31:30,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:30,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:30,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-04-30 10:31:30,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-04-30 10:31:30,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:30,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:31,157 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819764629] [2025-04-30 10:31:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819764629] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435775405] [2025-04-30 10:31:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:31,165 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:31,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:31,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:31,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:31,213 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 233 [2025-04-30 10:31:31,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 233 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2025-04-30 10:31:31,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:31,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 233 [2025-04-30 10:31:31,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:31,368 INFO L116 PetriNetUnfolderBase]: 116/821 cut-off events. [2025-04-30 10:31:31,369 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:31:31,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 821 events. 116/821 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4276 event pairs, 37 based on Foata normal form. 1/748 useless extension candidates. Maximal degree in co-relation 880. Up to 144 conditions per place. [2025-04-30 10:31:31,376 INFO L140 encePairwiseOnDemand]: 220/233 looper letters, 32 selfloop transitions, 8 changer transitions 1/249 dead transitions. [2025-04-30 10:31:31,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 249 transitions, 582 flow [2025-04-30 10:31:31,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:31,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2025-04-30 10:31:31,389 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9628040057224606 [2025-04-30 10:31:31,391 INFO L175 Difference]: Start difference. First operand has 233 places, 233 transitions, 470 flow. Second operand 3 states and 673 transitions. [2025-04-30 10:31:31,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 249 transitions, 582 flow [2025-04-30 10:31:31,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 249 transitions, 582 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:31:31,402 INFO L231 Difference]: Finished difference. Result has 237 places, 238 transitions, 534 flow [2025-04-30 10:31:31,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=237, PETRI_TRANSITIONS=238} [2025-04-30 10:31:31,406 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 4 predicate places. [2025-04-30 10:31:31,408 INFO L485 AbstractCegarLoop]: Abstraction has has 237 places, 238 transitions, 534 flow [2025-04-30 10:31:31,408 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2025-04-30 10:31:31,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:31,409 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:31,409 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:31:31,409 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:31,410 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:31,411 INFO L85 PathProgramCache]: Analyzing trace with hash -700777846, now seen corresponding path program 1 times [2025-04-30 10:31:31,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:31,411 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853154773] [2025-04-30 10:31:31,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:31,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:31,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-04-30 10:31:31,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-04-30 10:31:31,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:31,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:31,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:31,576 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853154773] [2025-04-30 10:31:31,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853154773] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:31,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:31,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:31,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130941537] [2025-04-30 10:31:31,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:31,578 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:31,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:31,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:31,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:31,616 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 233 [2025-04-30 10:31:31,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 238 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2025-04-30 10:31:31,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:31,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 233 [2025-04-30 10:31:31,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:31,739 INFO L116 PetriNetUnfolderBase]: 134/959 cut-off events. [2025-04-30 10:31:31,743 INFO L117 PetriNetUnfolderBase]: For 166/171 co-relation queries the response was YES. [2025-04-30 10:31:31,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 959 events. 134/959 cut-off events. For 166/171 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5590 event pairs, 84 based on Foata normal form. 4/886 useless extension candidates. Maximal degree in co-relation 1226. Up to 266 conditions per place. [2025-04-30 10:31:31,749 INFO L140 encePairwiseOnDemand]: 227/233 looper letters, 29 selfloop transitions, 7 changer transitions 0/247 dead transitions. [2025-04-30 10:31:31,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 247 transitions, 634 flow [2025-04-30 10:31:31,750 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2025-04-30 10:31:31,751 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9413447782546495 [2025-04-30 10:31:31,751 INFO L175 Difference]: Start difference. First operand has 237 places, 238 transitions, 534 flow. Second operand 3 states and 658 transitions. [2025-04-30 10:31:31,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 247 transitions, 634 flow [2025-04-30 10:31:31,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 247 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:31,756 INFO L231 Difference]: Finished difference. Result has 238 places, 243 transitions, 574 flow [2025-04-30 10:31:31,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=238, PETRI_TRANSITIONS=243} [2025-04-30 10:31:31,757 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 5 predicate places. [2025-04-30 10:31:31,757 INFO L485 AbstractCegarLoop]: Abstraction has has 238 places, 243 transitions, 574 flow [2025-04-30 10:31:31,758 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2025-04-30 10:31:31,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:31,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:31,758 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:31:31,758 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:31,759 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1411166537, now seen corresponding path program 1 times [2025-04-30 10:31:31,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:31,759 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955058389] [2025-04-30 10:31:31,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:31,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:31,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-04-30 10:31:31,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-04-30 10:31:31,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:31,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:31,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:31,871 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955058389] [2025-04-30 10:31:31,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955058389] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:31,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:31,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129524938] [2025-04-30 10:31:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:31,872 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:31,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:31,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:31,880 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 233 [2025-04-30 10:31:31,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 243 transitions, 574 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) [2025-04-30 10:31:31,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:31,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 233 [2025-04-30 10:31:31,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:32,030 INFO L116 PetriNetUnfolderBase]: 93/896 cut-off events. [2025-04-30 10:31:32,031 INFO L117 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-04-30 10:31:32,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 896 events. 93/896 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5219 event pairs, 51 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 1035. Up to 147 conditions per place. [2025-04-30 10:31:32,036 INFO L140 encePairwiseOnDemand]: 229/233 looper letters, 17 selfloop transitions, 3 changer transitions 1/249 dead transitions. [2025-04-30 10:31:32,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 249 transitions, 628 flow [2025-04-30 10:31:32,036 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2025-04-30 10:31:32,039 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9585121602288984 [2025-04-30 10:31:32,040 INFO L175 Difference]: Start difference. First operand has 238 places, 243 transitions, 574 flow. Second operand 3 states and 670 transitions. [2025-04-30 10:31:32,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 249 transitions, 628 flow [2025-04-30 10:31:32,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 249 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:32,045 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 582 flow [2025-04-30 10:31:32,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2025-04-30 10:31:32,046 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 7 predicate places. [2025-04-30 10:31:32,046 INFO L485 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 582 flow [2025-04-30 10:31:32,046 INFO L486 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) [2025-04-30 10:31:32,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:32,046 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:32,047 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:31:32,047 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:32,047 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:32,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1470200308, now seen corresponding path program 1 times [2025-04-30 10:31:32,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:32,048 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085616304] [2025-04-30 10:31:32,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:32,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:32,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-04-30 10:31:32,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-04-30 10:31:32,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:32,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:32,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:32,154 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085616304] [2025-04-30 10:31:32,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085616304] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:32,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:32,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:32,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63364406] [2025-04-30 10:31:32,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:32,155 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:32,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:32,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:32,181 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 233 [2025-04-30 10:31:32,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 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) [2025-04-30 10:31:32,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:32,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 233 [2025-04-30 10:31:32,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:32,326 INFO L116 PetriNetUnfolderBase]: 175/1102 cut-off events. [2025-04-30 10:31:32,326 INFO L117 PetriNetUnfolderBase]: For 181/188 co-relation queries the response was YES. [2025-04-30 10:31:32,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1102 events. 175/1102 cut-off events. For 181/188 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6767 event pairs, 79 based on Foata normal form. 3/1032 useless extension candidates. Maximal degree in co-relation 1622. Up to 303 conditions per place. [2025-04-30 10:31:32,331 INFO L140 encePairwiseOnDemand]: 226/233 looper letters, 30 selfloop transitions, 11 changer transitions 0/258 dead transitions. [2025-04-30 10:31:32,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 258 transitions, 704 flow [2025-04-30 10:31:32,331 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 665 transitions. [2025-04-30 10:31:32,333 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9513590844062947 [2025-04-30 10:31:32,333 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 582 flow. Second operand 3 states and 665 transitions. [2025-04-30 10:31:32,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 258 transitions, 704 flow [2025-04-30 10:31:32,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 258 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:32,338 INFO L231 Difference]: Finished difference. Result has 242 places, 252 transitions, 664 flow [2025-04-30 10:31:32,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=242, PETRI_TRANSITIONS=252} [2025-04-30 10:31:32,338 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 9 predicate places. [2025-04-30 10:31:32,339 INFO L485 AbstractCegarLoop]: Abstraction has has 242 places, 252 transitions, 664 flow [2025-04-30 10:31:32,339 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 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) [2025-04-30 10:31:32,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:32,339 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:32,339 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:31:32,340 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:32,340 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1357704317, now seen corresponding path program 1 times [2025-04-30 10:31:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:32,341 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303773288] [2025-04-30 10:31:32,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:32,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-04-30 10:31:32,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-04-30 10:31:32,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:32,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:32,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:32,547 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303773288] [2025-04-30 10:31:32,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303773288] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:32,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:32,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:31:32,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557757698] [2025-04-30 10:31:32,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:32,548 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:32,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:32,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:32,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:32,560 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 233 [2025-04-30 10:31:32,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 252 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2025-04-30 10:31:32,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:32,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 233 [2025-04-30 10:31:32,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:32,640 INFO L116 PetriNetUnfolderBase]: 23/510 cut-off events. [2025-04-30 10:31:32,640 INFO L117 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-04-30 10:31:32,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 510 events. 23/510 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1830 event pairs, 7 based on Foata normal form. 6/497 useless extension candidates. Maximal degree in co-relation 496. Up to 44 conditions per place. [2025-04-30 10:31:32,642 INFO L140 encePairwiseOnDemand]: 224/233 looper letters, 6 selfloop transitions, 9 changer transitions 2/234 dead transitions. [2025-04-30 10:31:32,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 234 transitions, 566 flow [2025-04-30 10:31:32,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2025-04-30 10:31:32,644 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9699570815450643 [2025-04-30 10:31:32,644 INFO L175 Difference]: Start difference. First operand has 242 places, 252 transitions, 664 flow. Second operand 3 states and 678 transitions. [2025-04-30 10:31:32,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 234 transitions, 566 flow [2025-04-30 10:31:32,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 234 transitions, 532 flow, removed 11 selfloop flow, removed 6 redundant places. [2025-04-30 10:31:32,651 INFO L231 Difference]: Finished difference. Result has 234 places, 231 transitions, 523 flow [2025-04-30 10:31:32,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=234, PETRI_TRANSITIONS=231} [2025-04-30 10:31:32,653 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 1 predicate places. [2025-04-30 10:31:32,654 INFO L485 AbstractCegarLoop]: Abstraction has has 234 places, 231 transitions, 523 flow [2025-04-30 10:31:32,654 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2025-04-30 10:31:32,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:32,654 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:32,654 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:31:32,655 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:32,655 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:32,655 INFO L85 PathProgramCache]: Analyzing trace with hash -11487301, now seen corresponding path program 1 times [2025-04-30 10:31:32,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:32,655 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114704938] [2025-04-30 10:31:32,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:32,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-04-30 10:31:32,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-04-30 10:31:32,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:32,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:32,740 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114704938] [2025-04-30 10:31:32,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114704938] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:32,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:32,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91723528] [2025-04-30 10:31:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:32,740 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:32,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:32,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:32,752 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 233 [2025-04-30 10:31:32,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 231 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2025-04-30 10:31:32,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:32,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 233 [2025-04-30 10:31:32,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:32,838 INFO L116 PetriNetUnfolderBase]: 65/676 cut-off events. [2025-04-30 10:31:32,838 INFO L117 PetriNetUnfolderBase]: For 139/148 co-relation queries the response was YES. [2025-04-30 10:31:32,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 676 events. 65/676 cut-off events. For 139/148 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3249 event pairs, 31 based on Foata normal form. 1/657 useless extension candidates. Maximal degree in co-relation 866. Up to 137 conditions per place. [2025-04-30 10:31:32,842 INFO L140 encePairwiseOnDemand]: 228/233 looper letters, 23 selfloop transitions, 4 changer transitions 3/240 dead transitions. [2025-04-30 10:31:32,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 619 flow [2025-04-30 10:31:32,842 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2025-04-30 10:31:32,843 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9570815450643777 [2025-04-30 10:31:32,843 INFO L175 Difference]: Start difference. First operand has 234 places, 231 transitions, 523 flow. Second operand 3 states and 669 transitions. [2025-04-30 10:31:32,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 619 flow [2025-04-30 10:31:32,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 240 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:31:32,848 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 536 flow [2025-04-30 10:31:32,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2025-04-30 10:31:32,849 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 4 predicate places. [2025-04-30 10:31:32,850 INFO L485 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 536 flow [2025-04-30 10:31:32,850 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2025-04-30 10:31:32,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:32,850 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:32,850 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:31:32,851 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:31:32,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1888354217, now seen corresponding path program 1 times [2025-04-30 10:31:32,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:32,852 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868735360] [2025-04-30 10:31:32,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:32,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:32,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-04-30 10:31:32,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-04-30 10:31:32,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:32,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:31:32,901 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:31:32,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-04-30 10:31:32,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-04-30 10:31:32,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:32,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:31:33,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:31:33,004 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:31:33,005 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-04-30 10:31:33,006 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2025-04-30 10:31:33,007 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2025-04-30 10:31:33,007 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-04-30 10:31:33,007 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-04-30 10:31:33,007 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:31:33,007 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:33,012 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-04-30 10:31:33,012 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-04-30 10:31:33,037 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:31:33,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 265 transitions, 540 flow [2025-04-30 10:31:33,073 INFO L116 PetriNetUnfolderBase]: 7/355 cut-off events. [2025-04-30 10:31:33,073 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-30 10:31:33,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 355 events. 7/355 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 404 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 275. Up to 6 conditions per place. [2025-04-30 10:31:33,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 265 transitions, 540 flow [2025-04-30 10:31:33,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 265 transitions, 540 flow [2025-04-30 10:31:33,078 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:31:33,078 INFO L340 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;@48f2db44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:31:33,078 INFO L341 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-04-30 10:31:33,087 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:31:33,087 INFO L116 PetriNetUnfolderBase]: 1/161 cut-off events. [2025-04-30 10:31:33,087 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:31:33,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:33,087 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:33,087 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:33,088 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 226467761, now seen corresponding path program 1 times [2025-04-30 10:31:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:33,088 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678503805] [2025-04-30 10:31:33,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:33,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-04-30 10:31:33,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-04-30 10:31:33,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:33,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:33,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:33,150 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678503805] [2025-04-30 10:31:33,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678503805] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:33,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:33,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:33,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738896704] [2025-04-30 10:31:33,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:33,151 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:33,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:33,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:33,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:33,174 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 265 [2025-04-30 10:31:33,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 265 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 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) [2025-04-30 10:31:33,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:33,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 265 [2025-04-30 10:31:33,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:34,047 INFO L116 PetriNetUnfolderBase]: 2700/8735 cut-off events. [2025-04-30 10:31:34,047 INFO L117 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-04-30 10:31:34,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13188 conditions, 8735 events. 2700/8735 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 88744 event pairs, 968 based on Foata normal form. 1/7747 useless extension candidates. Maximal degree in co-relation 5927. Up to 2282 conditions per place. [2025-04-30 10:31:34,098 INFO L140 encePairwiseOnDemand]: 248/265 looper letters, 46 selfloop transitions, 11 changer transitions 1/289 dead transitions. [2025-04-30 10:31:34,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 289 transitions, 707 flow [2025-04-30 10:31:34,100 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 760 transitions. [2025-04-30 10:31:34,102 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2025-04-30 10:31:34,102 INFO L175 Difference]: Start difference. First operand has 267 places, 265 transitions, 540 flow. Second operand 3 states and 760 transitions. [2025-04-30 10:31:34,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 289 transitions, 707 flow [2025-04-30 10:31:34,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 289 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:31:34,106 INFO L231 Difference]: Finished difference. Result has 271 places, 273 transitions, 630 flow [2025-04-30 10:31:34,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=271, PETRI_TRANSITIONS=273} [2025-04-30 10:31:34,107 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 4 predicate places. [2025-04-30 10:31:34,107 INFO L485 AbstractCegarLoop]: Abstraction has has 271 places, 273 transitions, 630 flow [2025-04-30 10:31:34,107 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 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) [2025-04-30 10:31:34,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:34,107 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:34,107 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:31:34,108 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:34,108 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 838526643, now seen corresponding path program 1 times [2025-04-30 10:31:34,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:34,108 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729633644] [2025-04-30 10:31:34,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:34,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:34,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-04-30 10:31:34,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-04-30 10:31:34,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:34,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:34,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:34,170 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729633644] [2025-04-30 10:31:34,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729633644] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:34,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:34,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:34,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693162900] [2025-04-30 10:31:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:34,171 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:34,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:34,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:34,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:34,199 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 265 [2025-04-30 10:31:34,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 273 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2025-04-30 10:31:34,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:34,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 265 [2025-04-30 10:31:34,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:35,431 INFO L116 PetriNetUnfolderBase]: 2944/10783 cut-off events. [2025-04-30 10:31:35,431 INFO L117 PetriNetUnfolderBase]: For 3040/3144 co-relation queries the response was YES. [2025-04-30 10:31:35,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18652 conditions, 10783 events. 2944/10783 cut-off events. For 3040/3144 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 119292 event pairs, 1867 based on Foata normal form. 56/9768 useless extension candidates. Maximal degree in co-relation 16666. Up to 4168 conditions per place. [2025-04-30 10:31:35,485 INFO L140 encePairwiseOnDemand]: 257/265 looper letters, 42 selfloop transitions, 12 changer transitions 0/291 dead transitions. [2025-04-30 10:31:35,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 291 transitions, 798 flow [2025-04-30 10:31:35,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2025-04-30 10:31:35,487 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9383647798742139 [2025-04-30 10:31:35,488 INFO L175 Difference]: Start difference. First operand has 271 places, 273 transitions, 630 flow. Second operand 3 states and 746 transitions. [2025-04-30 10:31:35,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 291 transitions, 798 flow [2025-04-30 10:31:35,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 291 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:35,497 INFO L231 Difference]: Finished difference. Result has 272 places, 283 transitions, 714 flow [2025-04-30 10:31:35,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=272, PETRI_TRANSITIONS=283} [2025-04-30 10:31:35,498 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 5 predicate places. [2025-04-30 10:31:35,498 INFO L485 AbstractCegarLoop]: Abstraction has has 272 places, 283 transitions, 714 flow [2025-04-30 10:31:35,498 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2025-04-30 10:31:35,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:35,498 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:35,498 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:31:35,499 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:35,499 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash -937367369, now seen corresponding path program 1 times [2025-04-30 10:31:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:35,499 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901703728] [2025-04-30 10:31:35,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:35,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:35,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-04-30 10:31:35,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-04-30 10:31:35,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:35,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:35,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:35,549 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901703728] [2025-04-30 10:31:35,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901703728] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:35,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:35,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:35,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565903422] [2025-04-30 10:31:35,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:35,549 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:35,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:35,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:35,559 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 265 [2025-04-30 10:31:35,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 283 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 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) [2025-04-30 10:31:35,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:35,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 265 [2025-04-30 10:31:35,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:36,581 INFO L116 PetriNetUnfolderBase]: 2291/10371 cut-off events. [2025-04-30 10:31:36,582 INFO L117 PetriNetUnfolderBase]: For 1035/1099 co-relation queries the response was YES. [2025-04-30 10:31:36,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16119 conditions, 10371 events. 2291/10371 cut-off events. For 1035/1099 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 119723 event pairs, 1380 based on Foata normal form. 4/9363 useless extension candidates. Maximal degree in co-relation 14502. Up to 2487 conditions per place. [2025-04-30 10:31:36,623 INFO L140 encePairwiseOnDemand]: 260/265 looper letters, 28 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2025-04-30 10:31:36,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 294 transitions, 800 flow [2025-04-30 10:31:36,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:36,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2025-04-30 10:31:36,626 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9547169811320755 [2025-04-30 10:31:36,626 INFO L175 Difference]: Start difference. First operand has 272 places, 283 transitions, 714 flow. Second operand 3 states and 759 transitions. [2025-04-30 10:31:36,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 294 transitions, 800 flow [2025-04-30 10:31:36,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 294 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:36,635 INFO L231 Difference]: Finished difference. Result has 274 places, 286 transitions, 720 flow [2025-04-30 10:31:36,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=274, PETRI_TRANSITIONS=286} [2025-04-30 10:31:36,636 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 7 predicate places. [2025-04-30 10:31:36,636 INFO L485 AbstractCegarLoop]: Abstraction has has 274 places, 286 transitions, 720 flow [2025-04-30 10:31:36,637 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 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) [2025-04-30 10:31:36,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:36,637 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:36,637 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-30 10:31:36,637 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:36,638 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:36,640 INFO L85 PathProgramCache]: Analyzing trace with hash 142558067, now seen corresponding path program 1 times [2025-04-30 10:31:36,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:36,640 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000135247] [2025-04-30 10:31:36,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:36,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:36,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-04-30 10:31:36,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-04-30 10:31:36,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:36,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:36,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:36,692 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000135247] [2025-04-30 10:31:36,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000135247] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:36,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:36,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890591619] [2025-04-30 10:31:36,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:36,692 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:36,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:36,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:36,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:36,719 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 265 [2025-04-30 10:31:36,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 286 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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) [2025-04-30 10:31:36,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:36,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 265 [2025-04-30 10:31:36,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:37,293 INFO L284 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([773] L713-5-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][250], [Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 200#L712-1true, 268#true, Black: 282#(= |#race~data~0| 0), Black: 270#true, 242#L692-2true, 280#true, 266#true, 68#L692-7true, 285#true]) [2025-04-30 10:31:37,293 INFO L286 olderBase$Statistics]: this new event has 228 ancestors and is cut-off event [2025-04-30 10:31:37,293 INFO L289 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-04-30 10:31:37,293 INFO L289 olderBase$Statistics]: existing Event has 223 ancestors and is cut-off event [2025-04-30 10:31:37,293 INFO L289 olderBase$Statistics]: existing Event has 223 ancestors and is cut-off event [2025-04-30 10:31:37,434 INFO L284 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([773] L713-5-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][170], [Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 200#L712-1true, 268#true, Black: 282#(= |#race~data~0| 0), Black: 270#true, 242#L692-2true, 280#true, 266#true, 285#true, 209#L694true]) [2025-04-30 10:31:37,434 INFO L286 olderBase$Statistics]: this new event has 230 ancestors and is cut-off event [2025-04-30 10:31:37,434 INFO L289 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2025-04-30 10:31:37,434 INFO L289 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2025-04-30 10:31:37,434 INFO L289 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2025-04-30 10:31:37,484 INFO L284 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([773] L713-5-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][170], [Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 112#L694-3true, 200#L712-1true, 268#true, Black: 282#(= |#race~data~0| 0), 242#L692-2true, Black: 270#true, 280#true, 266#true, 285#true]) [2025-04-30 10:31:37,484 INFO L286 olderBase$Statistics]: this new event has 231 ancestors and is cut-off event [2025-04-30 10:31:37,484 INFO L289 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2025-04-30 10:31:37,485 INFO L289 olderBase$Statistics]: existing Event has 231 ancestors and is cut-off event [2025-04-30 10:31:37,485 INFO L289 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2025-04-30 10:31:37,576 INFO L284 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([773] L713-5-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][170], [Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 268#true, 200#L712-1true, Black: 282#(= |#race~data~0| 0), Black: 270#true, 242#L692-2true, 280#true, 266#true, 222#L695-3true, 285#true]) [2025-04-30 10:31:37,576 INFO L286 olderBase$Statistics]: this new event has 233 ancestors and is cut-off event [2025-04-30 10:31:37,576 INFO L289 olderBase$Statistics]: existing Event has 233 ancestors and is cut-off event [2025-04-30 10:31:37,576 INFO L289 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-04-30 10:31:37,576 INFO L289 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-04-30 10:31:37,999 INFO L284 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([773] L713-5-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][170], [Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 268#true, 200#L712-1true, Black: 282#(= |#race~data~0| 0), 242#L692-2true, Black: 270#true, 280#true, 266#true, 264#L697-3true, 285#true]) [2025-04-30 10:31:38,000 INFO L286 olderBase$Statistics]: this new event has 243 ancestors and is cut-off event [2025-04-30 10:31:38,000 INFO L289 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2025-04-30 10:31:38,000 INFO L289 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2025-04-30 10:31:38,000 INFO L289 olderBase$Statistics]: existing Event has 243 ancestors and is cut-off event [2025-04-30 10:31:38,345 INFO L116 PetriNetUnfolderBase]: 4357/14868 cut-off events. [2025-04-30 10:31:38,345 INFO L117 PetriNetUnfolderBase]: For 5060/5427 co-relation queries the response was YES. [2025-04-30 10:31:38,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27211 conditions, 14868 events. 4357/14868 cut-off events. For 5060/5427 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 169285 event pairs, 2217 based on Foata normal form. 111/13359 useless extension candidates. Maximal degree in co-relation 25085. Up to 5572 conditions per place. [2025-04-30 10:31:38,420 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 49 selfloop transitions, 19 changer transitions 0/312 dead transitions. [2025-04-30 10:31:38,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 312 transitions, 957 flow [2025-04-30 10:31:38,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2025-04-30 10:31:38,422 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9484276729559749 [2025-04-30 10:31:38,422 INFO L175 Difference]: Start difference. First operand has 274 places, 286 transitions, 720 flow. Second operand 3 states and 754 transitions. [2025-04-30 10:31:38,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 312 transitions, 957 flow [2025-04-30 10:31:38,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 312 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:38,431 INFO L231 Difference]: Finished difference. Result has 276 places, 301 transitions, 894 flow [2025-04-30 10:31:38,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=276, PETRI_TRANSITIONS=301} [2025-04-30 10:31:38,432 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 9 predicate places. [2025-04-30 10:31:38,432 INFO L485 AbstractCegarLoop]: Abstraction has has 276 places, 301 transitions, 894 flow [2025-04-30 10:31:38,432 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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) [2025-04-30 10:31:38,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:38,432 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:38,433 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-30 10:31:38,433 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:38,434 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:38,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1637187132, now seen corresponding path program 1 times [2025-04-30 10:31:38,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:38,434 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156763066] [2025-04-30 10:31:38,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:38,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:38,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-04-30 10:31:38,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-04-30 10:31:38,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:38,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:38,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:38,562 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156763066] [2025-04-30 10:31:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156763066] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:38,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:31:38,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835939026] [2025-04-30 10:31:38,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:38,562 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:38,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:38,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:38,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:38,571 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 265 [2025-04-30 10:31:38,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 301 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2025-04-30 10:31:38,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:38,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 265 [2025-04-30 10:31:38,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:38,970 INFO L116 PetriNetUnfolderBase]: 455/3435 cut-off events. [2025-04-30 10:31:38,970 INFO L117 PetriNetUnfolderBase]: For 764/806 co-relation queries the response was YES. [2025-04-30 10:31:38,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5476 conditions, 3435 events. 455/3435 cut-off events. For 764/806 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 32052 event pairs, 150 based on Foata normal form. 71/3267 useless extension candidates. Maximal degree in co-relation 2748. Up to 485 conditions per place. [2025-04-30 10:31:38,979 INFO L140 encePairwiseOnDemand]: 253/265 looper letters, 15 selfloop transitions, 12 changer transitions 0/301 dead transitions. [2025-04-30 10:31:38,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 301 transitions, 883 flow [2025-04-30 10:31:38,980 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2025-04-30 10:31:38,981 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9685534591194969 [2025-04-30 10:31:38,981 INFO L175 Difference]: Start difference. First operand has 276 places, 301 transitions, 894 flow. Second operand 3 states and 770 transitions. [2025-04-30 10:31:38,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 301 transitions, 883 flow [2025-04-30 10:31:38,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 301 transitions, 861 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:38,986 INFO L231 Difference]: Finished difference. Result has 277 places, 298 transitions, 846 flow [2025-04-30 10:31:38,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=277, PETRI_TRANSITIONS=298} [2025-04-30 10:31:38,988 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 10 predicate places. [2025-04-30 10:31:38,988 INFO L485 AbstractCegarLoop]: Abstraction has has 277 places, 298 transitions, 846 flow [2025-04-30 10:31:38,989 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2025-04-30 10:31:38,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:38,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:38,989 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-30 10:31:38,989 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:38,989 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 267995514, now seen corresponding path program 1 times [2025-04-30 10:31:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:38,990 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901816362] [2025-04-30 10:31:38,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:38,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:39,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-04-30 10:31:39,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-04-30 10:31:39,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:39,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:39,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:39,045 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901816362] [2025-04-30 10:31:39,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901816362] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:39,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842595010] [2025-04-30 10:31:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:39,046 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:39,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:39,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:39,058 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 265 [2025-04-30 10:31:39,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 298 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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) [2025-04-30 10:31:39,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:39,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 265 [2025-04-30 10:31:39,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:39,546 INFO L116 PetriNetUnfolderBase]: 1326/5995 cut-off events. [2025-04-30 10:31:39,547 INFO L117 PetriNetUnfolderBase]: For 2511/2696 co-relation queries the response was YES. [2025-04-30 10:31:39,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11965 conditions, 5995 events. 1326/5995 cut-off events. For 2511/2696 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 60889 event pairs, 634 based on Foata normal form. 8/5612 useless extension candidates. Maximal degree in co-relation 10722. Up to 1800 conditions per place. [2025-04-30 10:31:39,569 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 45 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2025-04-30 10:31:39,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 318 transitions, 1036 flow [2025-04-30 10:31:39,569 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2025-04-30 10:31:39,570 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9547169811320755 [2025-04-30 10:31:39,571 INFO L175 Difference]: Start difference. First operand has 277 places, 298 transitions, 846 flow. Second operand 3 states and 759 transitions. [2025-04-30 10:31:39,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 318 transitions, 1036 flow [2025-04-30 10:31:39,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 318 transitions, 1015 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:31:39,577 INFO L231 Difference]: Finished difference. Result has 280 places, 303 transitions, 890 flow [2025-04-30 10:31:39,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=280, PETRI_TRANSITIONS=303} [2025-04-30 10:31:39,578 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 13 predicate places. [2025-04-30 10:31:39,578 INFO L485 AbstractCegarLoop]: Abstraction has has 280 places, 303 transitions, 890 flow [2025-04-30 10:31:39,578 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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) [2025-04-30 10:31:39,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:39,578 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:39,578 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-30 10:31:39,578 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:39,579 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1735529817, now seen corresponding path program 1 times [2025-04-30 10:31:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:39,579 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17909251] [2025-04-30 10:31:39,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:39,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-04-30 10:31:39,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-04-30 10:31:39,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:39,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:31:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:31:39,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:31:39,623 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17909251] [2025-04-30 10:31:39,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17909251] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:31:39,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:31:39,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:31:39,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58101698] [2025-04-30 10:31:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:31:39,624 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:31:39,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:31:39,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:31:39,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:31:39,650 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 265 [2025-04-30 10:31:39,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 303 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2025-04-30 10:31:39,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:31:39,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 265 [2025-04-30 10:31:39,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:31:40,068 INFO L116 PetriNetUnfolderBase]: 820/4565 cut-off events. [2025-04-30 10:31:40,069 INFO L117 PetriNetUnfolderBase]: For 2661/3018 co-relation queries the response was YES. [2025-04-30 10:31:40,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9256 conditions, 4565 events. 820/4565 cut-off events. For 2661/3018 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 45922 event pairs, 395 based on Foata normal form. 8/4297 useless extension candidates. Maximal degree in co-relation 8261. Up to 1381 conditions per place. [2025-04-30 10:31:40,083 INFO L140 encePairwiseOnDemand]: 258/265 looper letters, 56 selfloop transitions, 11 changer transitions 0/318 dead transitions. [2025-04-30 10:31:40,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 318 transitions, 1092 flow [2025-04-30 10:31:40,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:31:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:31:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2025-04-30 10:31:40,085 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9421383647798742 [2025-04-30 10:31:40,085 INFO L175 Difference]: Start difference. First operand has 280 places, 303 transitions, 890 flow. Second operand 3 states and 749 transitions. [2025-04-30 10:31:40,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 318 transitions, 1092 flow [2025-04-30 10:31:40,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 318 transitions, 1078 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:31:40,091 INFO L231 Difference]: Finished difference. Result has 282 places, 310 transitions, 974 flow [2025-04-30 10:31:40,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=282, PETRI_TRANSITIONS=310} [2025-04-30 10:31:40,092 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 15 predicate places. [2025-04-30 10:31:40,092 INFO L485 AbstractCegarLoop]: Abstraction has has 282 places, 310 transitions, 974 flow [2025-04-30 10:31:40,092 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2025-04-30 10:31:40,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:31:40,092 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:40,092 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-30 10:31:40,092 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:31:40,093 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:31:40,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1067766159, now seen corresponding path program 1 times [2025-04-30 10:31:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:31:40,093 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253330030] [2025-04-30 10:31:40,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:31:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:31:40,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-04-30 10:31:40,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-04-30 10:31:40,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:40,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:31:40,120 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:31:40,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-04-30 10:31:40,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-04-30 10:31:40,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:31:40,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:31:40,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:31:40,159 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:31:40,159 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2025-04-30 10:31:40,159 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2025-04-30 10:31:40,160 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2025-04-30 10:31:40,160 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-04-30 10:31:40,160 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:31:40,263 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-04-30 10:31:40,264 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-04-30 10:31:40,267 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-04-30 10:31:40,279 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-04-30 10:31:40,279 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:31:40,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:31:40 BasicIcfg [2025-04-30 10:31:40,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:31:40,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:31:40,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:31:40,283 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:31:40,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:31:30" (3/4) ... [2025-04-30 10:31:40,284 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:31:40,333 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-04-30 10:31:40,333 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-04-30 10:31:40,334 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-04-30 10:31:40,362 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-04-30 10:31:40,396 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:31:40,397 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:31:40,397 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:31:40,397 INFO L158 Benchmark]: Toolchain (without parser) took 10787.25ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 131.7MB in the beginning and 395.1MB in the end (delta: -263.4MB). Peak memory consumption was 878.0MB. Max. memory is 16.1GB. [2025-04-30 10:31:40,398 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 125.4MB in the beginning and 125.1MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:31:40,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.66ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 107.7MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:31:40,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.20ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 105.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:31:40,399 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 167.8MB. Free memory was 105.5MB in the beginning and 103.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:31:40,399 INFO L158 Benchmark]: RCFGBuilder took 447.15ms. Allocated memory is still 167.8MB. Free memory was 103.2MB in the beginning and 81.2MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:31:40,399 INFO L158 Benchmark]: TraceAbstraction took 9770.74ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 80.3MB in the beginning and 462.2MB in the end (delta: -381.9MB). Peak memory consumption was 760.6MB. Max. memory is 16.1GB. [2025-04-30 10:31:40,400 INFO L158 Benchmark]: Witness Printer took 113.80ms. Allocated memory is still 1.3GB. Free memory was 462.2MB in the beginning and 395.1MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-04-30 10:31:40,401 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 125.4MB in the beginning and 125.1MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.66ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 107.7MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.20ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 105.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.23ms. Allocated memory is still 167.8MB. Free memory was 105.5MB in the beginning and 103.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.15ms. Allocated memory is still 167.8MB. Free memory was 103.2MB in the beginning and 81.2MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9770.74ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 80.3MB in the beginning and 462.2MB in the end (delta: -381.9MB). Peak memory consumption was 760.6MB. Max. memory is 16.1GB. * Witness Printer took 113.80ms. Allocated memory is still 1.3GB. Free memory was 462.2MB in the beginning and 395.1MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 715]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 pthread_mutex_t threads_alive_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [threads_alive=0, threads_alive_mutex={1:0}] [L687] 0 pthread_cond_t threads_alive_cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [threads_alive=0, threads_alive_mutex={1:0}] [L688] 0 int data = 0; VAL [data=0, threads_alive=0, threads_alive_mutex={1:0}] [L689] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L701] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L702] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\at(cond, Pre)=1, cond=1, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L702] RET 0 assume_abort_if_not(threads_total >= 0) [L703] 0 int i = 0; VAL [data=0, data_mutex={2:0}, i=0, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L703] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={2:0}, i=0, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L705] 0 threads_alive++ VAL [data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L707] 0 pthread_t tid; VAL [data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L708] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [\at(arg, Pre)={0:0}, data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1, tid=-1] [L703] 0 i++ VAL [\at(arg, Pre)={0:0}, data=0, data_mutex={2:0}, i=1, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L703] COND FALSE 0 !(i < threads_total) VAL [\at(arg, Pre)={0:0}, data=0, data_mutex={2:0}, i=1, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L692] 1 threads_alive-- VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L712] COND FALSE 0 !(\read(threads_alive)) VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L715] 0 return data; VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L696] 1 data = __VERIFIER_nondet_int() VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L715] 0 return data; VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] Now there is a data race on ~data~0 between C: data = __VERIFIER_nondet_int() [696] and C: return data; [715] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 263 locations, 265 edges, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 266 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=664occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1226 NumberOfCodeBlocks, 1226 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1025 ConstructedInterpolants, 0 QuantifiedInterpolants, 1059 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 295 locations, 297 edges, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.1s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 36 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=974occurred in iteration=7, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 1444 NumberOfCodeBlocks, 1444 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 1265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-30 10:31:40,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)