./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:26:16,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:26:16,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:26:16,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:26:16,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:26:16,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:26:16,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:26:16,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:26:16,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:26:16,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:26:16,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:26:16,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:16,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:26:16,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:26:16,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:26:16,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:26:16,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:26:16,261 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2025-02-06 09:26:16,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:26:16,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:26:16,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:26:16,557 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:26:16,557 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:26:16,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-02-06 09:26:17,705 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a083f4/dd71cecb8aec42ab84a4b84ad76def4c/FLAG4ac9caf6e [2025-02-06 09:26:17,981 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:26:17,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-02-06 09:26:17,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a083f4/dd71cecb8aec42ab84a4b84ad76def4c/FLAG4ac9caf6e [2025-02-06 09:26:18,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a083f4/dd71cecb8aec42ab84a4b84ad76def4c [2025-02-06 09:26:18,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:26:18,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:26:18,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:18,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:26:18,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:26:18,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f06443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18, skipping insertion in model container [2025-02-06 09:26:18,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:26:18,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:18,700 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:26:18,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:18,801 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:26:18,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18 WrapperNode [2025-02-06 09:26:18,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:18,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:18,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:26:18,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:26:18,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,857 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 412 [2025-02-06 09:26:18,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:18,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:26:18,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:26:18,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:26:18,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,885 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:26:18,891 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:26:18,891 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:26:18,891 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:26:18,892 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (1/1) ... [2025-02-06 09:26:18,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:18,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:18,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:26:18,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:26:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:26:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:26:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:26:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:26:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:26:18,940 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:26:19,031 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:26:19,032 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:26:19,376 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 09:26:19,377 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 09:26:19,473 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:26:19,474 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:26:19,511 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:26:19,511 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:26:19,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:19 BoogieIcfgContainer [2025-02-06 09:26:19,512 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:26:19,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:26:19,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:26:19,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:26:19,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:26:18" (1/3) ... [2025-02-06 09:26:19,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c00c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:19, skipping insertion in model container [2025-02-06 09:26:19,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:18" (2/3) ... [2025-02-06 09:26:19,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c00c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:19, skipping insertion in model container [2025-02-06 09:26:19,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:19" (3/3) ... [2025-02-06 09:26:19,519 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2025-02-06 09:26:19,531 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:26:19,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_71-funloop_racing.i that has 2 procedures, 406 locations, 1 initial locations, 20 loop locations, and 17 error locations. [2025-02-06 09:26:19,533 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:26:19,625 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:26:19,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 449 transitions, 905 flow [2025-02-06 09:26:19,861 INFO L124 PetriNetUnfolderBase]: 70/686 cut-off events. [2025-02-06 09:26:19,863 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:26:19,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 686 events. 70/686 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3433 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 355. Up to 8 conditions per place. [2025-02-06 09:26:19,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 449 transitions, 905 flow [2025-02-06 09:26:19,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 449 transitions, 905 flow [2025-02-06 09:26:19,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:19,915 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5872ea5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:19,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 09:26:19,933 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:19,936 INFO L124 PetriNetUnfolderBase]: 4/128 cut-off events. [2025-02-06 09:26:19,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:19,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:19,937 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] [2025-02-06 09:26:19,938 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:19,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1619775226, now seen corresponding path program 1 times [2025-02-06 09:26:19,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:19,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816491509] [2025-02-06 09:26:19,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:20,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:26:20,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:26:20,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:20,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816491509] [2025-02-06 09:26:20,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816491509] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:20,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:20,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415350090] [2025-02-06 09:26:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:20,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:20,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:20,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:20,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:20,346 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 449 [2025-02-06 09:26:20,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 449 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:20,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:20,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 449 [2025-02-06 09:26:20,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:20,695 INFO L124 PetriNetUnfolderBase]: 161/2226 cut-off events. [2025-02-06 09:26:20,695 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2025-02-06 09:26:20,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 2226 events. 161/2226 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 18032 event pairs, 120 based on Foata normal form. 426/2468 useless extension candidates. Maximal degree in co-relation 2196. Up to 302 conditions per place. [2025-02-06 09:26:20,711 INFO L140 encePairwiseOnDemand]: 410/449 looper letters, 29 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2025-02-06 09:26:20,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 408 transitions, 885 flow [2025-02-06 09:26:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1208 transitions. [2025-02-06 09:26:20,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.896807720861173 [2025-02-06 09:26:20,730 INFO L175 Difference]: Start difference. First operand has 409 places, 449 transitions, 905 flow. Second operand 3 states and 1208 transitions. [2025-02-06 09:26:20,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 408 transitions, 885 flow [2025-02-06 09:26:20,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 408 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:20,750 INFO L231 Difference]: Finished difference. Result has 406 places, 408 transitions, 833 flow [2025-02-06 09:26:20,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=406, PETRI_TRANSITIONS=408} [2025-02-06 09:26:20,755 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -3 predicate places. [2025-02-06 09:26:20,757 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 408 transitions, 833 flow [2025-02-06 09:26:20,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:20,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:20,759 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] [2025-02-06 09:26:20,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:26:20,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:20,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:20,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2055011697, now seen corresponding path program 1 times [2025-02-06 09:26:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463987894] [2025-02-06 09:26:20,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:20,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:20,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:20,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:20,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:21,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:21,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463987894] [2025-02-06 09:26:21,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463987894] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:21,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471868977] [2025-02-06 09:26:21,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:21,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:21,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:21,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:26:21,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:26:21,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:21,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:21,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:21,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:21,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:21,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:21,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:21,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471868977] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:21,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:21,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:21,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048980937] [2025-02-06 09:26:21,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:21,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:21,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:21,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:21,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:21,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 449 [2025-02-06 09:26:21,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 408 transitions, 833 flow. Second operand has 10 states, 10 states have (on average 378.8) internal successors, (3788), 10 states have internal predecessors, (3788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:21,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:21,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 449 [2025-02-06 09:26:21,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:21,527 INFO L124 PetriNetUnfolderBase]: 161/2233 cut-off events. [2025-02-06 09:26:21,527 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2025-02-06 09:26:21,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 2233 events. 161/2233 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 18089 event pairs, 120 based on Foata normal form. 2/2051 useless extension candidates. Maximal degree in co-relation 2466. Up to 302 conditions per place. [2025-02-06 09:26:21,537 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 33 selfloop transitions, 9 changer transitions 0/416 dead transitions. [2025-02-06 09:26:21,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 416 transitions, 935 flow [2025-02-06 09:26:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3437 transitions. [2025-02-06 09:26:21,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8505320465231379 [2025-02-06 09:26:21,543 INFO L175 Difference]: Start difference. First operand has 406 places, 408 transitions, 833 flow. Second operand 9 states and 3437 transitions. [2025-02-06 09:26:21,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 416 transitions, 935 flow [2025-02-06 09:26:21,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 416 transitions, 933 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:21,548 INFO L231 Difference]: Finished difference. Result has 416 places, 414 transitions, 881 flow [2025-02-06 09:26:21,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=881, PETRI_PLACES=416, PETRI_TRANSITIONS=414} [2025-02-06 09:26:21,549 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, 7 predicate places. [2025-02-06 09:26:21,549 INFO L471 AbstractCegarLoop]: Abstraction has has 416 places, 414 transitions, 881 flow [2025-02-06 09:26:21,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 378.8) internal successors, (3788), 10 states have internal predecessors, (3788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:21,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:21,551 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:21,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:26:21,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:21,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:21,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1471674607, now seen corresponding path program 2 times [2025-02-06 09:26:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068682429] [2025-02-06 09:26:21,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:21,772 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-06 09:26:21,785 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-06 09:26:21,785 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:21,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 09:26:22,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068682429] [2025-02-06 09:26:22,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068682429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:22,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:22,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389645194] [2025-02-06 09:26:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:22,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:22,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:22,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:22,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:22,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 449 [2025-02-06 09:26:22,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 414 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:22,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:22,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 449 [2025-02-06 09:26:22,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:23,595 INFO L124 PetriNetUnfolderBase]: 2280/9159 cut-off events. [2025-02-06 09:26:23,596 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2025-02-06 09:26:23,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13651 conditions, 9159 events. 2280/9159 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 93364 event pairs, 1582 based on Foata normal form. 0/8363 useless extension candidates. Maximal degree in co-relation 13527. Up to 4230 conditions per place. [2025-02-06 09:26:23,630 INFO L140 encePairwiseOnDemand]: 422/449 looper letters, 133 selfloop transitions, 86 changer transitions 0/531 dead transitions. [2025-02-06 09:26:23,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 531 transitions, 1553 flow [2025-02-06 09:26:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:26:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:26:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2068 transitions. [2025-02-06 09:26:23,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7676317743132888 [2025-02-06 09:26:23,635 INFO L175 Difference]: Start difference. First operand has 416 places, 414 transitions, 881 flow. Second operand 6 states and 2068 transitions. [2025-02-06 09:26:23,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 531 transitions, 1553 flow [2025-02-06 09:26:23,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 531 transitions, 1547 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:23,646 INFO L231 Difference]: Finished difference. Result has 425 places, 499 transitions, 1441 flow [2025-02-06 09:26:23,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1441, PETRI_PLACES=425, PETRI_TRANSITIONS=499} [2025-02-06 09:26:23,648 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, 16 predicate places. [2025-02-06 09:26:23,648 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 499 transitions, 1441 flow [2025-02-06 09:26:23,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:23,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:23,650 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:23,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:26:23,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:23,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -289855452, now seen corresponding path program 1 times [2025-02-06 09:26:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137998601] [2025-02-06 09:26:23,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:23,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-02-06 09:26:23,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 09:26:23,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:23,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 09:26:23,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:23,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137998601] [2025-02-06 09:26:23,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137998601] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:23,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:23,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:23,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952981518] [2025-02-06 09:26:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:23,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:23,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:23,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:23,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:23,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 449 [2025-02-06 09:26:23,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 499 transitions, 1441 flow. Second operand has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:23,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:23,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 449 [2025-02-06 09:26:23,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:24,080 INFO L124 PetriNetUnfolderBase]: 361/3087 cut-off events. [2025-02-06 09:26:24,080 INFO L125 PetriNetUnfolderBase]: For 158/183 co-relation queries the response was YES. [2025-02-06 09:26:24,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 3087 events. 361/3087 cut-off events. For 158/183 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 27629 event pairs, 136 based on Foata normal form. 1/2840 useless extension candidates. Maximal degree in co-relation 4023. Up to 374 conditions per place. [2025-02-06 09:26:24,092 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 36 selfloop transitions, 3 changer transitions 0/507 dead transitions. [2025-02-06 09:26:24,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 507 transitions, 1535 flow [2025-02-06 09:26:24,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1179 transitions. [2025-02-06 09:26:24,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8752783964365256 [2025-02-06 09:26:24,095 INFO L175 Difference]: Start difference. First operand has 425 places, 499 transitions, 1441 flow. Second operand 3 states and 1179 transitions. [2025-02-06 09:26:24,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 507 transitions, 1535 flow [2025-02-06 09:26:24,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 507 transitions, 1535 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:24,103 INFO L231 Difference]: Finished difference. Result has 428 places, 499 transitions, 1452 flow [2025-02-06 09:26:24,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1441, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1452, PETRI_PLACES=428, PETRI_TRANSITIONS=499} [2025-02-06 09:26:24,104 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, 19 predicate places. [2025-02-06 09:26:24,104 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 499 transitions, 1452 flow [2025-02-06 09:26:24,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:24,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:24,105 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2025-02-06 09:26:24,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:26:24,105 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:24,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:24,106 INFO L85 PathProgramCache]: Analyzing trace with hash -708112606, now seen corresponding path program 1 times [2025-02-06 09:26:24,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:24,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231345293] [2025-02-06 09:26:24,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:24,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:24,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 09:26:24,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 09:26:24,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:24,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:24,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:24,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231345293] [2025-02-06 09:26:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231345293] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:24,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989349344] [2025-02-06 09:26:24,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:24,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:24,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:24,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:26:24,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:26:24,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 09:26:24,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 09:26:24,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:24,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:24,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:26:24,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:24,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:24,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989349344] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:24,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:24,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:26:24,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293897662] [2025-02-06 09:26:24,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:24,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:26:24,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:24,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:26:24,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:26:24,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 449 [2025-02-06 09:26:24,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 499 transitions, 1452 flow. Second operand has 18 states, 18 states have (on average 378.94444444444446) internal successors, (6821), 18 states have internal predecessors, (6821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:24,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:24,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 449 [2025-02-06 09:26:24,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:25,035 INFO L124 PetriNetUnfolderBase]: 346/3002 cut-off events. [2025-02-06 09:26:25,035 INFO L125 PetriNetUnfolderBase]: For 157/187 co-relation queries the response was YES. [2025-02-06 09:26:25,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4413 conditions, 3002 events. 346/3002 cut-off events. For 157/187 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 26503 event pairs, 120 based on Foata normal form. 4/2784 useless extension candidates. Maximal degree in co-relation 4211. Up to 556 conditions per place. [2025-02-06 09:26:25,052 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 37 selfloop transitions, 21 changer transitions 0/517 dead transitions. [2025-02-06 09:26:25,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 517 transitions, 1656 flow [2025-02-06 09:26:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:26:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:26:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7979 transitions. [2025-02-06 09:26:25,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8462191112525188 [2025-02-06 09:26:25,070 INFO L175 Difference]: Start difference. First operand has 428 places, 499 transitions, 1452 flow. Second operand 21 states and 7979 transitions. [2025-02-06 09:26:25,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 517 transitions, 1656 flow [2025-02-06 09:26:25,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 517 transitions, 1650 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:26:25,081 INFO L231 Difference]: Finished difference. Result has 451 places, 512 transitions, 1576 flow [2025-02-06 09:26:25,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1576, PETRI_PLACES=451, PETRI_TRANSITIONS=512} [2025-02-06 09:26:25,083 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, 42 predicate places. [2025-02-06 09:26:25,083 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 512 transitions, 1576 flow [2025-02-06 09:26:25,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 378.94444444444446) internal successors, (6821), 18 states have internal predecessors, (6821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:25,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:25,086 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2025-02-06 09:26:25,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 09:26:25,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:25,287 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:25,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1721922146, now seen corresponding path program 2 times [2025-02-06 09:26:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:25,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593601278] [2025-02-06 09:26:25,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:25,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:25,303 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-06 09:26:25,316 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:26:25,316 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:25,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:25,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:25,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593601278] [2025-02-06 09:26:25,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593601278] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:25,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405315112] [2025-02-06 09:26:25,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:25,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:25,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:25,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:26:25,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:26:25,748 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-06 09:26:25,789 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:26:25,789 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:25,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:25,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 09:26:25,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:25,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:26,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405315112] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:26,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:26,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:26:26,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708993019] [2025-02-06 09:26:26,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:26,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:26:26,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:26,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:26:26,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:26:26,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 449 [2025-02-06 09:26:26,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 512 transitions, 1576 flow. Second operand has 23 states, 23 states have (on average 379.04347826086956) internal successors, (8718), 23 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:26,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:26,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 449 [2025-02-06 09:26:26,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:26,798 INFO L124 PetriNetUnfolderBase]: 346/3017 cut-off events. [2025-02-06 09:26:26,799 INFO L125 PetriNetUnfolderBase]: For 258/288 co-relation queries the response was YES. [2025-02-06 09:26:26,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4513 conditions, 3017 events. 346/3017 cut-off events. For 258/288 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 26480 event pairs, 120 based on Foata normal form. 3/2798 useless extension candidates. Maximal degree in co-relation 4211. Up to 556 conditions per place. [2025-02-06 09:26:26,815 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 40 selfloop transitions, 30 changer transitions 0/529 dead transitions. [2025-02-06 09:26:26,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 529 transitions, 1844 flow [2025-02-06 09:26:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:26:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:26:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11383 transitions. [2025-02-06 09:26:26,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8450631031922792 [2025-02-06 09:26:26,848 INFO L175 Difference]: Start difference. First operand has 451 places, 512 transitions, 1576 flow. Second operand 30 states and 11383 transitions. [2025-02-06 09:26:26,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 529 transitions, 1844 flow [2025-02-06 09:26:26,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 529 transitions, 1814 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 09:26:26,866 INFO L231 Difference]: Finished difference. Result has 478 places, 522 transitions, 1704 flow [2025-02-06 09:26:26,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1552, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1704, PETRI_PLACES=478, PETRI_TRANSITIONS=522} [2025-02-06 09:26:26,872 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, 69 predicate places. [2025-02-06 09:26:26,872 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 522 transitions, 1704 flow [2025-02-06 09:26:26,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 379.04347826086956) internal successors, (8718), 23 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:26,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:26,875 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2025-02-06 09:26:26,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:26:27,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:27,076 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:27,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2048618997, now seen corresponding path program 3 times [2025-02-06 09:26:27,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:27,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898785388] [2025-02-06 09:26:27,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:26:27,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:27,104 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 11 equivalence classes. [2025-02-06 09:26:27,186 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 09:26:27,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 09:26:27,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:27,187 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:26:27,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-06 09:26:27,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 09:26:27,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:27,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:27,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:26:27,255 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:26:27,256 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2025-02-06 09:26:27,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2025-02-06 09:26:27,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2025-02-06 09:26:27,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:26:27,263 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-02-06 09:26:27,269 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:26:27,269 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:26:27,326 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:26:27,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 566 transitions, 1148 flow [2025-02-06 09:26:27,413 INFO L124 PetriNetUnfolderBase]: 113/1067 cut-off events. [2025-02-06 09:26:27,413 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 09:26:27,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 1067 events. 113/1067 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6298 event pairs, 0 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 688. Up to 12 conditions per place. [2025-02-06 09:26:27,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 513 places, 566 transitions, 1148 flow [2025-02-06 09:26:27,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 566 transitions, 1148 flow [2025-02-06 09:26:27,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:27,430 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5872ea5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:27,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-02-06 09:26:27,435 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:27,435 INFO L124 PetriNetUnfolderBase]: 4/128 cut-off events. [2025-02-06 09:26:27,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:27,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:27,435 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] [2025-02-06 09:26:27,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:27,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1432764, now seen corresponding path program 1 times [2025-02-06 09:26:27,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:27,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046056467] [2025-02-06 09:26:27,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:27,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:26:27,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:26:27,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:27,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:27,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:27,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046056467] [2025-02-06 09:26:27,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046056467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:27,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:27,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:27,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517663371] [2025-02-06 09:26:27,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:27,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:27,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:27,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:27,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 566 [2025-02-06 09:26:27,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 566 transitions, 1148 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:27,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:27,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 566 [2025-02-06 09:26:27,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:29,942 INFO L124 PetriNetUnfolderBase]: 2887/20998 cut-off events. [2025-02-06 09:26:29,942 INFO L125 PetriNetUnfolderBase]: For 153/157 co-relation queries the response was YES. [2025-02-06 09:26:30,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25254 conditions, 20998 events. 2887/20998 cut-off events. For 153/157 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 282365 event pairs, 2376 based on Foata normal form. 5816/25133 useless extension candidates. Maximal degree in co-relation 22512. Up to 4183 conditions per place. [2025-02-06 09:26:30,073 INFO L140 encePairwiseOnDemand]: 515/566 looper letters, 39 selfloop transitions, 2 changer transitions 0/511 dead transitions. [2025-02-06 09:26:30,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 511 transitions, 1120 flow [2025-02-06 09:26:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1512 transitions. [2025-02-06 09:26:30,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8904593639575972 [2025-02-06 09:26:30,077 INFO L175 Difference]: Start difference. First operand has 513 places, 566 transitions, 1148 flow. Second operand 3 states and 1512 transitions. [2025-02-06 09:26:30,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 511 transitions, 1120 flow [2025-02-06 09:26:30,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 511 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:30,083 INFO L231 Difference]: Finished difference. Result has 508 places, 511 transitions, 1048 flow [2025-02-06 09:26:30,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=566, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1048, PETRI_PLACES=508, PETRI_TRANSITIONS=511} [2025-02-06 09:26:30,086 INFO L279 CegarLoopForPetriNet]: 513 programPoint places, -5 predicate places. [2025-02-06 09:26:30,086 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 511 transitions, 1048 flow [2025-02-06 09:26:30,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:30,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:30,088 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] [2025-02-06 09:26:30,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:26:30,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:30,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:30,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2064118449, now seen corresponding path program 1 times [2025-02-06 09:26:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418477345] [2025-02-06 09:26:30,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:30,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:30,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:30,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:30,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:30,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:30,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418477345] [2025-02-06 09:26:30,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418477345] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:30,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783989551] [2025-02-06 09:26:30,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:30,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:30,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:30,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:26:30,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:26:30,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:30,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:30,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:30,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:30,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:30,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:30,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:26:30,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783989551] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:30,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:30,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:30,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970614706] [2025-02-06 09:26:30,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:30,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:30,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:30,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:30,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:30,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 566 [2025-02-06 09:26:30,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 511 transitions, 1048 flow. Second operand has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:30,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:30,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 566 [2025-02-06 09:26:30,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:32,703 INFO L124 PetriNetUnfolderBase]: 2887/21005 cut-off events. [2025-02-06 09:26:32,703 INFO L125 PetriNetUnfolderBase]: For 154/158 co-relation queries the response was YES. [2025-02-06 09:26:32,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25280 conditions, 21005 events. 2887/21005 cut-off events. For 154/158 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 282272 event pairs, 2376 based on Foata normal form. 2/19326 useless extension candidates. Maximal degree in co-relation 25184. Up to 4183 conditions per place. [2025-02-06 09:26:32,815 INFO L140 encePairwiseOnDemand]: 560/566 looper letters, 43 selfloop transitions, 9 changer transitions 0/519 dead transitions. [2025-02-06 09:26:32,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 519 transitions, 1170 flow [2025-02-06 09:26:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4293 transitions. [2025-02-06 09:26:32,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842756183745583 [2025-02-06 09:26:32,821 INFO L175 Difference]: Start difference. First operand has 508 places, 511 transitions, 1048 flow. Second operand 9 states and 4293 transitions. [2025-02-06 09:26:32,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 519 transitions, 1170 flow [2025-02-06 09:26:32,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 519 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:32,827 INFO L231 Difference]: Finished difference. Result has 518 places, 517 transitions, 1096 flow [2025-02-06 09:26:32,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=566, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1096, PETRI_PLACES=518, PETRI_TRANSITIONS=517} [2025-02-06 09:26:32,829 INFO L279 CegarLoopForPetriNet]: 513 programPoint places, 5 predicate places. [2025-02-06 09:26:32,829 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 517 transitions, 1096 flow [2025-02-06 09:26:32,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:32,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:32,831 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:32,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:26:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-06 09:26:33,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1409619311, now seen corresponding path program 2 times [2025-02-06 09:26:33,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:33,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451534636] [2025-02-06 09:26:33,034 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:33,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:33,042 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-06 09:26:33,047 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-06 09:26:33,047 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:33,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 09:26:33,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:33,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451534636] [2025-02-06 09:26:33,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451534636] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:33,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:33,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593568731] [2025-02-06 09:26:33,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:33,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:33,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:33,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:33,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:33,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 566 [2025-02-06 09:26:33,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 517 transitions, 1096 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:33,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:33,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 566 [2025-02-06 09:26:33,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand