./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.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_76-tricky_address3_racefree.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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:26:28,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:26:28,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:26:28,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:26:28,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:26:28,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:26:28,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:26:28,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:26:28,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:26:28,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:26:28,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:26:28,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:26:28,556 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:26:28,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:26:28,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:26:28,558 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:28,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:26:28,558 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:26:28,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:26:28,559 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 -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2025-02-06 09:26:28,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:26:28,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:26:28,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:26:28,839 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:26:28,840 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:26:28,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2025-02-06 09:26:30,086 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8ded17218/44c7ce9981f74ecd9e8e8ea2c226aa1b/FLAG428877660 [2025-02-06 09:26:30,420 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:26:30,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2025-02-06 09:26:30,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8ded17218/44c7ce9981f74ecd9e8e8ea2c226aa1b/FLAG428877660 [2025-02-06 09:26:30,463 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8ded17218/44c7ce9981f74ecd9e8e8ea2c226aa1b [2025-02-06 09:26:30,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:26:30,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:26:30,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:30,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:26:30,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:26:30,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:30" (1/1) ... [2025-02-06 09:26:30,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a4666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:30, skipping insertion in model container [2025-02-06 09:26:30,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:30" (1/1) ... [2025-02-06 09:26:30,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:26:30,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:30,990 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:26:31,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:31,146 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:26:31,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31 WrapperNode [2025-02-06 09:26:31,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:31,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:31,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:26:31,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:26:31,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,227 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 329 [2025-02-06 09:26:31,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:31,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:26:31,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:26:31,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:26:31,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:26:31,274 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:26:31,274 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:26:31,274 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:26:31,274 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (1/1) ... [2025-02-06 09:26:31,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:31,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:31,324 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 09:26:31,326 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 09:26:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:26:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:26:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:26:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:26:31,347 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:26:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:26:31,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:26:31,349 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 09:26:31,471 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:26:31,472 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:26:31,867 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 09:26:31,867 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 09:26:32,014 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:26:32,015 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:26:32,059 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:26:32,059 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:26:32,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:32 BoogieIcfgContainer [2025-02-06 09:26:32,060 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:26:32,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:26:32,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:26:32,067 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:26:32,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:26:30" (1/3) ... [2025-02-06 09:26:32,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d763e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:32, skipping insertion in model container [2025-02-06 09:26:32,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:31" (2/3) ... [2025-02-06 09:26:32,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d763e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:32, skipping insertion in model container [2025-02-06 09:26:32,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:32" (3/3) ... [2025-02-06 09:26:32,069 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2025-02-06 09:26:32,084 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:26:32,087 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_76-tricky_address3_racefree.i that has 2 procedures, 327 locations, 1 initial locations, 13 loop locations, and 12 error locations. [2025-02-06 09:26:32,087 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:26:32,199 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:26:32,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:32,411 INFO L124 PetriNetUnfolderBase]: 43/487 cut-off events. [2025-02-06 09:26:32,413 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:26:32,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 487 events. 43/487 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1703 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 252. Up to 8 conditions per place. [2025-02-06 09:26:32,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:32,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:32,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:32,464 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;@32d0846a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:32,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-02-06 09:26:32,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:32,497 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2025-02-06 09:26:32,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:32,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:32,498 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:32,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:32,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1390720099, now seen corresponding path program 1 times [2025-02-06 09:26:32,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:32,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161198410] [2025-02-06 09:26:32,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:32,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:32,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 09:26:32,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:26:32,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:32,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:32,963 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 09:26:32,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:32,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161198410] [2025-02-06 09:26:32,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161198410] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:32,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:32,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:32,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760589229] [2025-02-06 09:26:32,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:32,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:32,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:32,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:32,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:33,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 357 [2025-02-06 09:26:33,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 357 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:33,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:33,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 357 [2025-02-06 09:26:33,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:33,349 INFO L124 PetriNetUnfolderBase]: 85/1343 cut-off events. [2025-02-06 09:26:33,350 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:26:33,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 1343 events. 85/1343 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8601 event pairs, 72 based on Foata normal form. 245/1473 useless extension candidates. Maximal degree in co-relation 1280. Up to 178 conditions per place. [2025-02-06 09:26:33,366 INFO L140 encePairwiseOnDemand]: 328/357 looper letters, 23 selfloop transitions, 2 changer transitions 1/328 dead transitions. [2025-02-06 09:26:33,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 328 transitions, 713 flow [2025-02-06 09:26:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:33,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 967 transitions. [2025-02-06 09:26:33,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9028944911297853 [2025-02-06 09:26:33,390 INFO L175 Difference]: Start difference. First operand has 330 places, 357 transitions, 721 flow. Second operand 3 states and 967 transitions. [2025-02-06 09:26:33,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 328 transitions, 713 flow [2025-02-06 09:26:33,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 328 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:33,412 INFO L231 Difference]: Finished difference. Result has 329 places, 327 transitions, 671 flow [2025-02-06 09:26:33,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=329, PETRI_TRANSITIONS=327} [2025-02-06 09:26:33,421 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, -1 predicate places. [2025-02-06 09:26:33,421 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 327 transitions, 671 flow [2025-02-06 09:26:33,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:33,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:33,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:33,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:26:33,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:33,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1286066485, now seen corresponding path program 1 times [2025-02-06 09:26:33,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:33,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36037999] [2025-02-06 09:26:33,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:33,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:33,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:33,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:33,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:33,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:33,645 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 09:26:33,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:33,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36037999] [2025-02-06 09:26:33,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36037999] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:33,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223883006] [2025-02-06 09:26:33,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:33,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:33,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:33,648 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 09:26:33,650 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 09:26:33,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:33,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:33,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:33,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:33,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:33,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:33,814 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 09:26:33,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:33,862 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 09:26:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223883006] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:33,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709746080] [2025-02-06 09:26:33,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:33,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:33,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:33,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:33,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:33,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:33,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 327 transitions, 671 flow. Second operand has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 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 09:26:33,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:33,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:33,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:34,327 INFO L124 PetriNetUnfolderBase]: 85/1349 cut-off events. [2025-02-06 09:26:34,327 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 09:26:34,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 1349 events. 85/1349 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8572 event pairs, 72 based on Foata normal form. 2/1237 useless extension candidates. Maximal degree in co-relation 1457. Up to 178 conditions per place. [2025-02-06 09:26:34,343 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 27 selfloop transitions, 9 changer transitions 0/335 dead transitions. [2025-02-06 09:26:34,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 335 transitions, 761 flow [2025-02-06 09:26:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2756 transitions. [2025-02-06 09:26:34,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8577653283535637 [2025-02-06 09:26:34,356 INFO L175 Difference]: Start difference. First operand has 329 places, 327 transitions, 671 flow. Second operand 9 states and 2756 transitions. [2025-02-06 09:26:34,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 335 transitions, 761 flow [2025-02-06 09:26:34,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 335 transitions, 759 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:34,366 INFO L231 Difference]: Finished difference. Result has 338 places, 333 transitions, 719 flow [2025-02-06 09:26:34,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=719, PETRI_PLACES=338, PETRI_TRANSITIONS=333} [2025-02-06 09:26:34,368 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 8 predicate places. [2025-02-06 09:26:34,368 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 333 transitions, 719 flow [2025-02-06 09:26:34,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 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 09:26:34,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:34,370 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, 1, 1] [2025-02-06 09:26:34,379 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 09:26:34,571 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 09:26:34,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:34,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:34,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1438347829, now seen corresponding path program 2 times [2025-02-06 09:26:34,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:34,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964123387] [2025-02-06 09:26:34,573 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:34,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:34,601 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-02-06 09:26:34,618 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 117 statements. [2025-02-06 09:26:34,618 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:34,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:35,292 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 09:26:35,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:35,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964123387] [2025-02-06 09:26:35,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964123387] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:35,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:35,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681461587] [2025-02-06 09:26:35,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:35,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:35,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:35,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:35,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:35,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 357 [2025-02-06 09:26:35,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 333 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 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 09:26:35,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:35,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 357 [2025-02-06 09:26:35,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:36,688 INFO L124 PetriNetUnfolderBase]: 1365/5339 cut-off events. [2025-02-06 09:26:36,690 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 09:26:36,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8137 conditions, 5339 events. 1365/5339 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 47261 event pairs, 929 based on Foata normal form. 0/4929 useless extension candidates. Maximal degree in co-relation 8013. Up to 2545 conditions per place. [2025-02-06 09:26:36,728 INFO L140 encePairwiseOnDemand]: 330/357 looper letters, 107 selfloop transitions, 86 changer transitions 0/450 dead transitions. [2025-02-06 09:26:36,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 450 transitions, 1339 flow [2025-02-06 09:26:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:26:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:26:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1712 transitions. [2025-02-06 09:26:36,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7992530345471522 [2025-02-06 09:26:36,735 INFO L175 Difference]: Start difference. First operand has 338 places, 333 transitions, 719 flow. Second operand 6 states and 1712 transitions. [2025-02-06 09:26:36,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 450 transitions, 1339 flow [2025-02-06 09:26:36,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 450 transitions, 1333 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:36,746 INFO L231 Difference]: Finished difference. Result has 347 places, 418 transitions, 1279 flow [2025-02-06 09:26:36,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1279, PETRI_PLACES=347, PETRI_TRANSITIONS=418} [2025-02-06 09:26:36,748 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 17 predicate places. [2025-02-06 09:26:36,748 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 418 transitions, 1279 flow [2025-02-06 09:26:36,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 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 09:26:36,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:36,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:36,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:26:36,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:36,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:36,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1762348666, now seen corresponding path program 1 times [2025-02-06 09:26:36,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:36,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364064318] [2025-02-06 09:26:36,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:36,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:36,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-06 09:26:36,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-06 09:26:36,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:36,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:36,834 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 09:26:36,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364064318] [2025-02-06 09:26:36,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364064318] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:36,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:36,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932593260] [2025-02-06 09:26:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:36,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:36,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:36,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:36,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 357 [2025-02-06 09:26:36,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 418 transitions, 1279 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 09:26:36,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:36,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 357 [2025-02-06 09:26:36,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:37,247 INFO L124 PetriNetUnfolderBase]: 285/2072 cut-off events. [2025-02-06 09:26:37,247 INFO L125 PetriNetUnfolderBase]: For 138/143 co-relation queries the response was YES. [2025-02-06 09:26:37,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 2072 events. 285/2072 cut-off events. For 138/143 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15396 event pairs, 55 based on Foata normal form. 1/1911 useless extension candidates. Maximal degree in co-relation 2916. Up to 235 conditions per place. [2025-02-06 09:26:37,263 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 30 selfloop transitions, 3 changer transitions 0/426 dead transitions. [2025-02-06 09:26:37,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 426 transitions, 1361 flow [2025-02-06 09:26:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 948 transitions. [2025-02-06 09:26:37,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8851540616246498 [2025-02-06 09:26:37,266 INFO L175 Difference]: Start difference. First operand has 347 places, 418 transitions, 1279 flow. Second operand 3 states and 948 transitions. [2025-02-06 09:26:37,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 426 transitions, 1361 flow [2025-02-06 09:26:37,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 426 transitions, 1361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:37,276 INFO L231 Difference]: Finished difference. Result has 350 places, 418 transitions, 1290 flow [2025-02-06 09:26:37,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1279, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=350, PETRI_TRANSITIONS=418} [2025-02-06 09:26:37,278 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 20 predicate places. [2025-02-06 09:26:37,278 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 418 transitions, 1290 flow [2025-02-06 09:26:37,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 09:26:37,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:37,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:37,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:26:37,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:37,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash -586243548, now seen corresponding path program 1 times [2025-02-06 09:26:37,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:37,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605606786] [2025-02-06 09:26:37,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:37,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 09:26:37,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 09:26:37,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:37,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:37,501 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 09:26:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605606786] [2025-02-06 09:26:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605606786] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954488527] [2025-02-06 09:26:37,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:37,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:37,505 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 09:26:37,507 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 09:26:37,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 09:26:37,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 09:26:37,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:37,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:37,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:26:37,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:37,679 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 09:26:37,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:37,807 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 09:26:37,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954488527] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:37,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:37,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:26:37,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086338666] [2025-02-06 09:26:37,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:37,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:26:37,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:37,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:26:37,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:26:37,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:37,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 418 transitions, 1290 flow. Second operand has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 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 09:26:37,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:37,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:37,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:38,537 INFO L124 PetriNetUnfolderBase]: 237/1989 cut-off events. [2025-02-06 09:26:38,537 INFO L125 PetriNetUnfolderBase]: For 143/166 co-relation queries the response was YES. [2025-02-06 09:26:38,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2914 conditions, 1989 events. 237/1989 cut-off events. For 143/166 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14644 event pairs, 72 based on Foata normal form. 4/1849 useless extension candidates. Maximal degree in co-relation 2712. Up to 232 conditions per place. [2025-02-06 09:26:38,556 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 31 selfloop transitions, 21 changer transitions 0/436 dead transitions. [2025-02-06 09:26:38,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 436 transitions, 1482 flow [2025-02-06 09:26:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:26:38,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:26:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6398 transitions. [2025-02-06 09:26:38,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8534080298786181 [2025-02-06 09:26:38,571 INFO L175 Difference]: Start difference. First operand has 350 places, 418 transitions, 1290 flow. Second operand 21 states and 6398 transitions. [2025-02-06 09:26:38,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 436 transitions, 1482 flow [2025-02-06 09:26:38,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 436 transitions, 1476 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:26:38,583 INFO L231 Difference]: Finished difference. Result has 373 places, 431 transitions, 1414 flow [2025-02-06 09:26:38,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1414, PETRI_PLACES=373, PETRI_TRANSITIONS=431} [2025-02-06 09:26:38,588 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 43 predicate places. [2025-02-06 09:26:38,588 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 431 transitions, 1414 flow [2025-02-06 09:26:38,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 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 09:26:38,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:38,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:38,598 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 09:26:38,792 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 09:26:38,792 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:38,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:38,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1527094236, now seen corresponding path program 2 times [2025-02-06 09:26:38,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:38,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326329519] [2025-02-06 09:26:38,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:38,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:38,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 152 statements into 2 equivalence classes. [2025-02-06 09:26:38,841 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 152 of 152 statements. [2025-02-06 09:26:38,842 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:38,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:39,235 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 09:26:39,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:39,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326329519] [2025-02-06 09:26:39,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326329519] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:39,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349061648] [2025-02-06 09:26:39,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:39,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:39,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:39,238 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 09:26:39,241 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 09:26:39,317 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 152 statements into 2 equivalence classes. [2025-02-06 09:26:39,381 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 152 of 152 statements. [2025-02-06 09:26:39,381 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:39,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:39,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 09:26:39,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:39,505 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 09:26:39,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:39,735 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 09:26:39,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349061648] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:39,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:39,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:26:39,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323131919] [2025-02-06 09:26:39,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:39,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:26:39,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:39,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:26:39,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:26:39,786 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:39,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 431 transitions, 1414 flow. Second operand has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 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 09:26:39,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:39,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:39,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:40,456 INFO L124 PetriNetUnfolderBase]: 237/2004 cut-off events. [2025-02-06 09:26:40,456 INFO L125 PetriNetUnfolderBase]: For 244/267 co-relation queries the response was YES. [2025-02-06 09:26:40,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3014 conditions, 2004 events. 237/2004 cut-off events. For 244/267 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14668 event pairs, 72 based on Foata normal form. 3/1863 useless extension candidates. Maximal degree in co-relation 2712. Up to 232 conditions per place. [2025-02-06 09:26:40,476 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 34 selfloop transitions, 30 changer transitions 0/448 dead transitions. [2025-02-06 09:26:40,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 448 transitions, 1670 flow [2025-02-06 09:26:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:26:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:26:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9127 transitions. [2025-02-06 09:26:40,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8521942110177404 [2025-02-06 09:26:40,496 INFO L175 Difference]: Start difference. First operand has 373 places, 431 transitions, 1414 flow. Second operand 30 states and 9127 transitions. [2025-02-06 09:26:40,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 448 transitions, 1670 flow [2025-02-06 09:26:40,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 448 transitions, 1640 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 09:26:40,508 INFO L231 Difference]: Finished difference. Result has 400 places, 441 transitions, 1542 flow [2025-02-06 09:26:40,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1390, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1542, PETRI_PLACES=400, PETRI_TRANSITIONS=441} [2025-02-06 09:26:40,510 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 70 predicate places. [2025-02-06 09:26:40,510 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 441 transitions, 1542 flow [2025-02-06 09:26:40,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 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 09:26:40,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:40,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:40,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:26:40,717 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 09:26:40,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:40,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:40,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1554639988, now seen corresponding path program 3 times [2025-02-06 09:26:40,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:40,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643760449] [2025-02-06 09:26:40,719 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:26:40,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:40,737 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 167 statements into 11 equivalence classes. [2025-02-06 09:26:40,829 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 09:26:40,829 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 09:26:40,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:40,829 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:26:40,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-06 09:26:40,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 09:26:40,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:40,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:40,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:26:40,892 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:26:40,892 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2025-02-06 09:26:40,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2025-02-06 09:26:40,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2025-02-06 09:26:40,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2025-02-06 09:26:40,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2025-02-06 09:26:40,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2025-02-06 09:26:40,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:26:40,900 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-02-06 09:26:40,903 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:26:40,903 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:26:40,969 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:26:40,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:41,076 INFO L124 PetriNetUnfolderBase]: 72/765 cut-off events. [2025-02-06 09:26:41,077 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2025-02-06 09:26:41,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 765 events. 72/765 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3490 event pairs, 0 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 489. Up to 12 conditions per place. [2025-02-06 09:26:41,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:41,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:41,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:41,101 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;@32d0846a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:41,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 09:26:41,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:41,111 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2025-02-06 09:26:41,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:41,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:41,111 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:41,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:41,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1941719971, now seen corresponding path program 1 times [2025-02-06 09:26:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975410797] [2025-02-06 09:26:41,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:41,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 09:26:41,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:26:41,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:41,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:41,165 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 09:26:41,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975410797] [2025-02-06 09:26:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975410797] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:41,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:41,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:41,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429487280] [2025-02-06 09:26:41,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:41,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:41,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:41,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:41,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:41,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 478 [2025-02-06 09:26:41,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 478 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 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 09:26:41,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:41,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 478 [2025-02-06 09:26:41,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:43,159 INFO L124 PetriNetUnfolderBase]: 1580/12249 cut-off events. [2025-02-06 09:26:43,159 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2025-02-06 09:26:43,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14710 conditions, 12249 events. 1580/12249 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 147034 event pairs, 1464 based on Foata normal form. 3588/14934 useless extension candidates. Maximal degree in co-relation 13018. Up to 2408 conditions per place. [2025-02-06 09:26:43,273 INFO L140 encePairwiseOnDemand]: 436/478 looper letters, 33 selfloop transitions, 2 changer transitions 1/434 dead transitions. [2025-02-06 09:26:43,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 434 transitions, 954 flow [2025-02-06 09:26:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1281 transitions. [2025-02-06 09:26:43,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.893305439330544 [2025-02-06 09:26:43,278 INFO L175 Difference]: Start difference. First operand has 438 places, 478 transitions, 972 flow. Second operand 3 states and 1281 transitions. [2025-02-06 09:26:43,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 434 transitions, 954 flow [2025-02-06 09:26:43,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 434 transitions, 954 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:43,287 INFO L231 Difference]: Finished difference. Result has 435 places, 433 transitions, 892 flow [2025-02-06 09:26:43,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=435, PETRI_TRANSITIONS=433} [2025-02-06 09:26:43,289 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, -3 predicate places. [2025-02-06 09:26:43,289 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 433 transitions, 892 flow [2025-02-06 09:26:43,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 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 09:26:43,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:43,289 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:43,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:26:43,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:43,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:43,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1257403927, now seen corresponding path program 1 times [2025-02-06 09:26:43,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:43,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802311686] [2025-02-06 09:26:43,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:43,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:43,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:43,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:43,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:43,373 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 09:26:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802311686] [2025-02-06 09:26:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802311686] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845386811] [2025-02-06 09:26:43,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:43,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:43,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:43,376 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 09:26:43,379 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 09:26:43,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:43,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:43,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:43,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:43,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:43,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:43,553 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 09:26:43,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:43,586 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 09:26:43,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845386811] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:43,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:43,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:43,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690988622] [2025-02-06 09:26:43,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:43,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:43,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:43,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:43,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:43,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 478 [2025-02-06 09:26:43,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 433 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 400.8) internal successors, (4008), 10 states have internal predecessors, (4008), 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 09:26:43,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:43,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 478 [2025-02-06 09:26:43,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:45,409 INFO L124 PetriNetUnfolderBase]: 1580/12255 cut-off events. [2025-02-06 09:26:45,409 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-02-06 09:26:45,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14735 conditions, 12255 events. 1580/12255 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 146905 event pairs, 1464 based on Foata normal form. 2/11355 useless extension candidates. Maximal degree in co-relation 14639. Up to 2408 conditions per place. [2025-02-06 09:26:45,505 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 37 selfloop transitions, 9 changer transitions 0/441 dead transitions. [2025-02-06 09:26:45,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 441 transitions, 1002 flow [2025-02-06 09:26:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3639 transitions. [2025-02-06 09:26:45,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8458856345885635 [2025-02-06 09:26:45,512 INFO L175 Difference]: Start difference. First operand has 435 places, 433 transitions, 892 flow. Second operand 9 states and 3639 transitions. [2025-02-06 09:26:45,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 441 transitions, 1002 flow [2025-02-06 09:26:45,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 441 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:45,518 INFO L231 Difference]: Finished difference. Result has 444 places, 439 transitions, 940 flow [2025-02-06 09:26:45,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=940, PETRI_PLACES=444, PETRI_TRANSITIONS=439} [2025-02-06 09:26:45,520 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, 6 predicate places. [2025-02-06 09:26:45,520 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 439 transitions, 940 flow [2025-02-06 09:26:45,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 400.8) internal successors, (4008), 10 states have internal predecessors, (4008), 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 09:26:45,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:45,521 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, 1, 1] [2025-02-06 09:26:45,529 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 09:26:45,722 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 09:26:45,723 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:45,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:45,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1943345623, now seen corresponding path program 2 times [2025-02-06 09:26:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:45,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635262217] [2025-02-06 09:26:45,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:45,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:45,734 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-02-06 09:26:45,742 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 117 statements. [2025-02-06 09:26:45,743 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:45,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:46,166 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 09:26:46,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:46,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635262217] [2025-02-06 09:26:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635262217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:46,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:46,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350084001] [2025-02-06 09:26:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:46,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:46,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:46,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:46,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:46,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 478 [2025-02-06 09:26:46,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 439 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 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 09:26:46,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:46,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 478 [2025-02-06 09:26:46,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:09,818 INFO L124 PetriNetUnfolderBase]: 83051/199105 cut-off events. [2025-02-06 09:27:09,819 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2025-02-06 09:27:10,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324131 conditions, 199105 events. 83051/199105 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 3922. Compared 2657191 event pairs, 58482 based on Foata normal form. 0/185939 useless extension candidates. Maximal degree in co-relation 324006. Up to 116888 conditions per place. [2025-02-06 09:27:11,155 INFO L140 encePairwiseOnDemand]: 431/478 looper letters, 170 selfloop transitions, 166 changer transitions 0/669 dead transitions. [2025-02-06 09:27:11,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 669 transitions, 2077 flow [2025-02-06 09:27:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2025-02-06 09:27:11,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8078800557880056 [2025-02-06 09:27:11,161 INFO L175 Difference]: Start difference. First operand has 444 places, 439 transitions, 940 flow. Second operand 6 states and 2317 transitions. [2025-02-06 09:27:11,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 669 transitions, 2077 flow [2025-02-06 09:27:11,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 669 transitions, 2071 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:27:11,180 INFO L231 Difference]: Finished difference. Result has 453 places, 604 transitions, 2020 flow [2025-02-06 09:27:11,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2020, PETRI_PLACES=453, PETRI_TRANSITIONS=604} [2025-02-06 09:27:11,182 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, 15 predicate places. [2025-02-06 09:27:11,183 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 604 transitions, 2020 flow [2025-02-06 09:27:11,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 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 09:27:11,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:11,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:11,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:27:11,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:27:11,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2094441978, now seen corresponding path program 1 times [2025-02-06 09:27:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:11,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397949258] [2025-02-06 09:27:11,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:11,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:11,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-06 09:27:11,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-06 09:27:11,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:11,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:11,427 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 09:27:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:11,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397949258] [2025-02-06 09:27:11,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397949258] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:11,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:11,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:27:11,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057011821] [2025-02-06 09:27:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:11,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:11,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:11,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:11,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 478 [2025-02-06 09:27:11,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 604 transitions, 2020 flow. Second operand has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 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 09:27:11,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:11,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 478 [2025-02-06 09:27:11,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand