./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_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_73-funloop_hard_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 c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:26:20,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:26:20,359 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:26:20,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:26:20,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:26:20,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:26:20,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:26:20,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:26:20,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:26:20,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:26:20,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:26:20,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:26:20,378 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:26:20,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:26:20,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:26:20,378 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:26:20,379 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:26:20,379 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:20,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:26:20,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:26:20,381 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 -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2025-02-06 09:26:20,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:26:20,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:26:20,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:26:20,657 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:26:20,657 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:26:20,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2025-02-06 09:26:21,899 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9d1c112c7/915e2b9d98cb467290653cb816adaff4/FLAG99a02f762 [2025-02-06 09:26:22,221 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:26:22,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2025-02-06 09:26:22,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9d1c112c7/915e2b9d98cb467290653cb816adaff4/FLAG99a02f762 [2025-02-06 09:26:22,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9d1c112c7/915e2b9d98cb467290653cb816adaff4 [2025-02-06 09:26:22,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:26:22,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:26:22,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:22,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:26:22,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:26:22,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:22,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31eadf07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22, skipping insertion in model container [2025-02-06 09:26:22,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:22,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:26:22,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:22,881 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:26:22,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:22,995 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:26:22,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22 WrapperNode [2025-02-06 09:26:22,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:22,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:22,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:26:22,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:26:23,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,054 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 418 [2025-02-06 09:26:23,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:23,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:26:23,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:26:23,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:26:23,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:26:23,102 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:26:23,102 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:26:23,102 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:26:23,102 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (1/1) ... [2025-02-06 09:26:23,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:23,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:23,146 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 09:26:23,151 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 09:26:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:26:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:26:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:26:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:26:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:26:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:26:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:26:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:26:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:26:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:26:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:26:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:26:23,170 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 09:26:23,296 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:26:23,299 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:26:23,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 09:26:23,680 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 09:26:23,752 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:26:23,753 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:26:23,821 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:26:23,825 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:26:23,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:23 BoogieIcfgContainer [2025-02-06 09:26:23,825 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:26:23,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:26:23,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:26:23,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:26:23,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:26:22" (1/3) ... [2025-02-06 09:26:23,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653d02c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:23, skipping insertion in model container [2025-02-06 09:26:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:22" (2/3) ... [2025-02-06 09:26:23,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653d02c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:23, skipping insertion in model container [2025-02-06 09:26:23,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:23" (3/3) ... [2025-02-06 09:26:23,834 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2025-02-06 09:26:23,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:26:23,848 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_73-funloop_hard_racefree.i that has 2 procedures, 410 locations, 1 initial locations, 20 loop locations, and 17 error locations. [2025-02-06 09:26:23,848 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:26:23,932 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:26:23,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 453 transitions, 913 flow [2025-02-06 09:26:24,174 INFO L124 PetriNetUnfolderBase]: 70/694 cut-off events. [2025-02-06 09:26:24,177 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:26:24,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 694 events. 70/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3512 event pairs, 0 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 359. Up to 8 conditions per place. [2025-02-06 09:26:24,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 413 places, 453 transitions, 913 flow [2025-02-06 09:26:24,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 453 transitions, 913 flow [2025-02-06 09:26:24,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:24,217 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;@5878db11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:24,217 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 09:26:24,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:24,233 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-02-06 09:26:24,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:24,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:24,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:24,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:24,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 169507832, now seen corresponding path program 1 times [2025-02-06 09:26:24,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:24,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481362057] [2025-02-06 09:26:24,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:24,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:26:24,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:26:24,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:24,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:24,584 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 09:26:24,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:24,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481362057] [2025-02-06 09:26:24,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481362057] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:24,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:24,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037106476] [2025-02-06 09:26:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:24,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:24,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:24,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:24,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:24,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 453 [2025-02-06 09:26:24,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 453 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:24,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:24,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 453 [2025-02-06 09:26:24,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:25,048 INFO L124 PetriNetUnfolderBase]: 181/2448 cut-off events. [2025-02-06 09:26:25,048 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2025-02-06 09:26:25,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 2448 events. 181/2448 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 20392 event pairs, 136 based on Foata normal form. 453/2703 useless extension candidates. Maximal degree in co-relation 2450. Up to 340 conditions per place. [2025-02-06 09:26:25,069 INFO L140 encePairwiseOnDemand]: 414/453 looper letters, 31 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2025-02-06 09:26:25,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 897 flow [2025-02-06 09:26:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1216 transitions. [2025-02-06 09:26:25,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8947755702722591 [2025-02-06 09:26:25,092 INFO L175 Difference]: Start difference. First operand has 413 places, 453 transitions, 913 flow. Second operand 3 states and 1216 transitions. [2025-02-06 09:26:25,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 897 flow [2025-02-06 09:26:25,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 412 transitions, 897 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:25,108 INFO L231 Difference]: Finished difference. Result has 410 places, 412 transitions, 841 flow [2025-02-06 09:26:25,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=410, PETRI_TRANSITIONS=412} [2025-02-06 09:26:25,115 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, -3 predicate places. [2025-02-06 09:26:25,116 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 412 transitions, 841 flow [2025-02-06 09:26:25,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:25,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:25,118 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:25,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:26:25,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:25,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1527609582, now seen corresponding path program 1 times [2025-02-06 09:26:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394728602] [2025-02-06 09:26:25,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:25,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:25,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:25,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:25,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:25,347 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 09:26:25,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:25,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394728602] [2025-02-06 09:26:25,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394728602] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:25,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507474156] [2025-02-06 09:26:25,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:25,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:25,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:25,353 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 09:26:25,356 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 09:26:25,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:25,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:25,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:25,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:25,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:25,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:25,512 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 09:26:25,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:25,544 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 09:26:25,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507474156] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:25,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:25,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:25,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207702356] [2025-02-06 09:26:25,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:25,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:25,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:25,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:25,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:25,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-06 09:26:25,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 412 transitions, 841 flow. Second operand has 10 states, 10 states have (on average 380.8) internal successors, (3808), 10 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:25,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:25,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-06 09:26:25,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:26,012 INFO L124 PetriNetUnfolderBase]: 181/2455 cut-off events. [2025-02-06 09:26:26,012 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2025-02-06 09:26:26,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2821 conditions, 2455 events. 181/2455 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 20396 event pairs, 136 based on Foata normal form. 2/2259 useless extension candidates. Maximal degree in co-relation 2726. Up to 340 conditions per place. [2025-02-06 09:26:26,022 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 35 selfloop transitions, 9 changer transitions 0/420 dead transitions. [2025-02-06 09:26:26,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 420 transitions, 947 flow [2025-02-06 09:26:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3457 transitions. [2025-02-06 09:26:26,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8479273975962718 [2025-02-06 09:26:26,032 INFO L175 Difference]: Start difference. First operand has 410 places, 412 transitions, 841 flow. Second operand 9 states and 3457 transitions. [2025-02-06 09:26:26,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 420 transitions, 947 flow [2025-02-06 09:26:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:26,040 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 889 flow [2025-02-06 09:26:26,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=889, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2025-02-06 09:26:26,041 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 7 predicate places. [2025-02-06 09:26:26,042 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 889 flow [2025-02-06 09:26:26,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 380.8) internal successors, (3808), 10 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:26,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:26,044 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:26,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:26:26,244 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 09:26:26,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:26,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -494416174, now seen corresponding path program 2 times [2025-02-06 09:26:26,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:26,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330043079] [2025-02-06 09:26:26,247 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:26,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:26,263 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-06 09:26:26,271 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-06 09:26:26,271 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:26,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:26,677 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 09:26:26,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330043079] [2025-02-06 09:26:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330043079] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:26,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:26,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358340793] [2025-02-06 09:26:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:26,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:26,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:26,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:26,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:26,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 453 [2025-02-06 09:26:26,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 889 flow. Second operand has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:26,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:26,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 453 [2025-02-06 09:26:26,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:28,240 INFO L124 PetriNetUnfolderBase]: 2315/9255 cut-off events. [2025-02-06 09:26:28,241 INFO L125 PetriNetUnfolderBase]: For 11/14 co-relation queries the response was YES. [2025-02-06 09:26:28,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13840 conditions, 9255 events. 2315/9255 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 94553 event pairs, 1632 based on Foata normal form. 0/8469 useless extension candidates. Maximal degree in co-relation 13716. Up to 4323 conditions per place. [2025-02-06 09:26:28,275 INFO L140 encePairwiseOnDemand]: 426/453 looper letters, 135 selfloop transitions, 86 changer transitions 0/535 dead transitions. [2025-02-06 09:26:28,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 535 transitions, 1565 flow [2025-02-06 09:26:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:26:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:26:28,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2082 transitions. [2025-02-06 09:26:28,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7660044150110376 [2025-02-06 09:26:28,279 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 889 flow. Second operand 6 states and 2082 transitions. [2025-02-06 09:26:28,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 535 transitions, 1565 flow [2025-02-06 09:26:28,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 535 transitions, 1559 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:28,288 INFO L231 Difference]: Finished difference. Result has 429 places, 503 transitions, 1449 flow [2025-02-06 09:26:28,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1449, PETRI_PLACES=429, PETRI_TRANSITIONS=503} [2025-02-06 09:26:28,289 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 16 predicate places. [2025-02-06 09:26:28,289 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 503 transitions, 1449 flow [2025-02-06 09:26:28,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 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 09:26:28,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:28,290 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 09:26:28,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:26:28,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:28,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1258061004, now seen corresponding path program 1 times [2025-02-06 09:26:28,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:28,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995017745] [2025-02-06 09:26:28,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:28,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:28,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-06 09:26:28,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-06 09:26:28,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:28,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:28,349 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 09:26:28,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:28,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995017745] [2025-02-06 09:26:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995017745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:28,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:28,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:28,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373367908] [2025-02-06 09:26:28,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:28,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:28,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:28,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:28,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:28,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 453 [2025-02-06 09:26:28,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 503 transitions, 1449 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 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 09:26:28,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:28,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 453 [2025-02-06 09:26:28,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:28,686 INFO L124 PetriNetUnfolderBase]: 369/3131 cut-off events. [2025-02-06 09:26:28,687 INFO L125 PetriNetUnfolderBase]: For 158/183 co-relation queries the response was YES. [2025-02-06 09:26:28,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4219 conditions, 3131 events. 369/3131 cut-off events. For 158/183 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 28173 event pairs, 152 based on Foata normal form. 1/2878 useless extension candidates. Maximal degree in co-relation 4093. Up to 410 conditions per place. [2025-02-06 09:26:28,699 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 38 selfloop transitions, 3 changer transitions 0/511 dead transitions. [2025-02-06 09:26:28,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 511 transitions, 1547 flow [2025-02-06 09:26:28,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2025-02-06 09:26:28,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8734363502575423 [2025-02-06 09:26:28,702 INFO L175 Difference]: Start difference. First operand has 429 places, 503 transitions, 1449 flow. Second operand 3 states and 1187 transitions. [2025-02-06 09:26:28,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 511 transitions, 1547 flow [2025-02-06 09:26:28,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 511 transitions, 1547 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:28,709 INFO L231 Difference]: Finished difference. Result has 432 places, 503 transitions, 1460 flow [2025-02-06 09:26:28,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1460, PETRI_PLACES=432, PETRI_TRANSITIONS=503} [2025-02-06 09:26:28,710 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 19 predicate places. [2025-02-06 09:26:28,710 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 503 transitions, 1460 flow [2025-02-06 09:26:28,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 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 09:26:28,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:28,711 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:28,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:26:28,712 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:28,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash 983535438, now seen corresponding path program 1 times [2025-02-06 09:26:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:28,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816056378] [2025-02-06 09:26:28,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:28,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 09:26:28,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 09:26:28,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:28,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:28,850 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 09:26:28,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:28,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816056378] [2025-02-06 09:26:28,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816056378] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:28,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650880342] [2025-02-06 09:26:28,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:28,853 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 09:26:28,861 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 09:26:28,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 09:26:28,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 09:26:28,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:28,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:28,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:26:28,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:28,995 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 09:26:28,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:29,101 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 09:26:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650880342] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:29,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:29,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:26:29,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913418528] [2025-02-06 09:26:29,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:29,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:26:29,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:29,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:26:29,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:26:29,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-06 09:26:29,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 503 transitions, 1460 flow. Second operand has 18 states, 18 states have (on average 380.94444444444446) internal successors, (6857), 18 states have internal predecessors, (6857), 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 09:26:29,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:29,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-06 09:26:29,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:29,647 INFO L124 PetriNetUnfolderBase]: 354/3196 cut-off events. [2025-02-06 09:26:29,647 INFO L125 PetriNetUnfolderBase]: For 168/210 co-relation queries the response was YES. [2025-02-06 09:26:29,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4659 conditions, 3196 events. 354/3196 cut-off events. For 168/210 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 28763 event pairs, 136 based on Foata normal form. 4/2964 useless extension candidates. Maximal degree in co-relation 4457. Up to 596 conditions per place. [2025-02-06 09:26:29,661 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 39 selfloop transitions, 21 changer transitions 0/521 dead transitions. [2025-02-06 09:26:29,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 521 transitions, 1668 flow [2025-02-06 09:26:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:26:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:26:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8023 transitions. [2025-02-06 09:26:29,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8433722274781877 [2025-02-06 09:26:29,675 INFO L175 Difference]: Start difference. First operand has 432 places, 503 transitions, 1460 flow. Second operand 21 states and 8023 transitions. [2025-02-06 09:26:29,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 521 transitions, 1668 flow [2025-02-06 09:26:29,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 521 transitions, 1662 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:26:29,684 INFO L231 Difference]: Finished difference. Result has 455 places, 516 transitions, 1584 flow [2025-02-06 09:26:29,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1584, PETRI_PLACES=455, PETRI_TRANSITIONS=516} [2025-02-06 09:26:29,685 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 42 predicate places. [2025-02-06 09:26:29,686 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 516 transitions, 1584 flow [2025-02-06 09:26:29,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 380.94444444444446) internal successors, (6857), 18 states have internal predecessors, (6857), 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 09:26:29,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:29,689 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:29,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:26:29,890 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 09:26:29,890 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:29,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash -770826290, now seen corresponding path program 2 times [2025-02-06 09:26:29,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:29,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309817462] [2025-02-06 09:26:29,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:29,908 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-06 09:26:29,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:26:29,925 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:29,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:30,228 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 09:26:30,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309817462] [2025-02-06 09:26:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309817462] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587033151] [2025-02-06 09:26:30,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:30,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:30,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:30,231 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 09:26:30,232 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 09:26:30,291 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-06 09:26:30,330 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:26:30,330 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:30,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:30,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 09:26:30,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:30,400 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 09:26:30,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:30,571 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 09:26:30,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587033151] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:30,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:30,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:26:30,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103425390] [2025-02-06 09:26:30,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:30,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:26:30,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:30,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:26:30,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:26:30,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-06 09:26:30,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 516 transitions, 1584 flow. Second operand has 23 states, 23 states have (on average 381.04347826086956) internal successors, (8764), 23 states have internal predecessors, (8764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:30,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:30,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-06 09:26:30,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:31,331 INFO L124 PetriNetUnfolderBase]: 354/3211 cut-off events. [2025-02-06 09:26:31,331 INFO L125 PetriNetUnfolderBase]: For 269/311 co-relation queries the response was YES. [2025-02-06 09:26:31,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 3211 events. 354/3211 cut-off events. For 269/311 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 28768 event pairs, 136 based on Foata normal form. 3/2978 useless extension candidates. Maximal degree in co-relation 4457. Up to 596 conditions per place. [2025-02-06 09:26:31,347 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 42 selfloop transitions, 30 changer transitions 0/533 dead transitions. [2025-02-06 09:26:31,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 533 transitions, 1856 flow [2025-02-06 09:26:31,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:26:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:26:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11445 transitions. [2025-02-06 09:26:31,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421633554083885 [2025-02-06 09:26:31,362 INFO L175 Difference]: Start difference. First operand has 455 places, 516 transitions, 1584 flow. Second operand 30 states and 11445 transitions. [2025-02-06 09:26:31,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 533 transitions, 1856 flow [2025-02-06 09:26:31,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 533 transitions, 1826 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 09:26:31,372 INFO L231 Difference]: Finished difference. Result has 482 places, 526 transitions, 1712 flow [2025-02-06 09:26:31,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1712, PETRI_PLACES=482, PETRI_TRANSITIONS=526} [2025-02-06 09:26:31,374 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 69 predicate places. [2025-02-06 09:26:31,374 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 526 transitions, 1712 flow [2025-02-06 09:26:31,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 381.04347826086956) internal successors, (8764), 23 states have internal predecessors, (8764), 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 09:26:31,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:31,377 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:31,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:26:31,579 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 09:26:31,579 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:31,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:31,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1765427240, now seen corresponding path program 3 times [2025-02-06 09:26:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:31,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692217471] [2025-02-06 09:26:31,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:26:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:31,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 11 equivalence classes. [2025-02-06 09:26:31,650 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 09:26:31,650 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 09:26:31,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:31,650 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:26:31,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-06 09:26:31,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 09:26:31,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:31,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:31,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:26:31,701 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:26:31,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-02-06 09:26:31,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2025-02-06 09:26:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2025-02-06 09:26:31,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:26:31,706 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-02-06 09:26:31,707 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:26:31,707 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:26:31,749 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:26:31,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 570 transitions, 1156 flow [2025-02-06 09:26:31,843 INFO L124 PetriNetUnfolderBase]: 113/1079 cut-off events. [2025-02-06 09:26:31,843 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 09:26:31,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1079 events. 113/1079 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6389 event pairs, 0 based on Foata normal form. 0/915 useless extension candidates. Maximal degree in co-relation 696. Up to 12 conditions per place. [2025-02-06 09:26:31,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 570 transitions, 1156 flow [2025-02-06 09:26:31,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 517 places, 570 transitions, 1156 flow [2025-02-06 09:26:31,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:31,862 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;@5878db11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:31,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-02-06 09:26:31,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:31,871 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-02-06 09:26:31,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:31,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:31,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:31,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:31,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:31,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1969115314, now seen corresponding path program 1 times [2025-02-06 09:26:31,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:31,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482680607] [2025-02-06 09:26:31,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:31,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:31,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 09:26:31,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 09:26:31,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:31,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:31,911 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 09:26:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482680607] [2025-02-06 09:26:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482680607] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:31,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:31,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988618420] [2025-02-06 09:26:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:31,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:31,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:31,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:31,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:31,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 570 [2025-02-06 09:26:31,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 570 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 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 09:26:31,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:31,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 570 [2025-02-06 09:26:31,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:34,536 INFO L124 PetriNetUnfolderBase]: 3251/23508 cut-off events. [2025-02-06 09:26:34,536 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2025-02-06 09:26:34,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28288 conditions, 23508 events. 3251/23508 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 319924 event pairs, 2680 based on Foata normal form. 6277/27918 useless extension candidates. Maximal degree in co-relation 25286. Up to 4707 conditions per place. [2025-02-06 09:26:34,677 INFO L140 encePairwiseOnDemand]: 519/570 looper letters, 41 selfloop transitions, 2 changer transitions 0/515 dead transitions. [2025-02-06 09:26:34,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 515 transitions, 1132 flow [2025-02-06 09:26:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:34,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2025-02-06 09:26:34,680 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2025-02-06 09:26:34,680 INFO L175 Difference]: Start difference. First operand has 517 places, 570 transitions, 1156 flow. Second operand 3 states and 1520 transitions. [2025-02-06 09:26:34,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 515 transitions, 1132 flow [2025-02-06 09:26:34,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 515 transitions, 1132 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:34,685 INFO L231 Difference]: Finished difference. Result has 512 places, 515 transitions, 1056 flow [2025-02-06 09:26:34,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=512, PETRI_TRANSITIONS=515} [2025-02-06 09:26:34,686 INFO L279 CegarLoopForPetriNet]: 517 programPoint places, -5 predicate places. [2025-02-06 09:26:34,686 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 515 transitions, 1056 flow [2025-02-06 09:26:34,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 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 09:26:34,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:34,686 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:34,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:26:34,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:34,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash -322655662, now seen corresponding path program 1 times [2025-02-06 09:26:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418194932] [2025-02-06 09:26:34,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:34,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:34,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:34,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:34,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:34,736 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 09:26:34,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418194932] [2025-02-06 09:26:34,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418194932] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866231944] [2025-02-06 09:26:34,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:34,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:34,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:34,741 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 09:26:34,744 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 09:26:34,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:26:34,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:26:34,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:34,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:34,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:34,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:34,835 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 09:26:34,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:34,858 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 09:26:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866231944] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:34,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:34,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:34,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456894652] [2025-02-06 09:26:34,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:34,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:34,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:34,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:34,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 570 [2025-02-06 09:26:34,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 515 transitions, 1056 flow. Second operand has 10 states, 10 states have (on average 474.8) internal successors, (4748), 10 states have internal predecessors, (4748), 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 09:26:34,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:34,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 570 [2025-02-06 09:26:34,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:37,411 INFO L124 PetriNetUnfolderBase]: 3251/23515 cut-off events. [2025-02-06 09:26:37,412 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2025-02-06 09:26:37,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28314 conditions, 23515 events. 3251/23515 cut-off events. For 152/156 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 320098 event pairs, 2680 based on Foata normal form. 2/21650 useless extension candidates. Maximal degree in co-relation 28218. Up to 4707 conditions per place. [2025-02-06 09:26:37,556 INFO L140 encePairwiseOnDemand]: 564/570 looper letters, 45 selfloop transitions, 9 changer transitions 0/523 dead transitions. [2025-02-06 09:26:37,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 523 transitions, 1182 flow [2025-02-06 09:26:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4313 transitions. [2025-02-06 09:26:37,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407407407407408 [2025-02-06 09:26:37,562 INFO L175 Difference]: Start difference. First operand has 512 places, 515 transitions, 1056 flow. Second operand 9 states and 4313 transitions. [2025-02-06 09:26:37,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 523 transitions, 1182 flow [2025-02-06 09:26:37,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 523 transitions, 1180 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:37,568 INFO L231 Difference]: Finished difference. Result has 522 places, 521 transitions, 1104 flow [2025-02-06 09:26:37,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1104, PETRI_PLACES=522, PETRI_TRANSITIONS=521} [2025-02-06 09:26:37,569 INFO L279 CegarLoopForPetriNet]: 517 programPoint places, 5 predicate places. [2025-02-06 09:26:37,569 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 521 transitions, 1104 flow [2025-02-06 09:26:37,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 474.8) internal successors, (4748), 10 states have internal predecessors, (4748), 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 09:26:37,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:37,570 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:37,580 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 09:26:37,775 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 09:26:37,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-06 09:26:37,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:37,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1771035054, now seen corresponding path program 2 times [2025-02-06 09:26:37,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:37,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682536147] [2025-02-06 09:26:37,776 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:37,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:37,787 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-06 09:26:37,794 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-06 09:26:37,794 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:37,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:38,112 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 09:26:38,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682536147] [2025-02-06 09:26:38,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682536147] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:38,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:38,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:38,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598975704] [2025-02-06 09:26:38,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:38,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:38,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:38,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:38,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:38,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 570 [2025-02-06 09:26:38,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 521 transitions, 1104 flow. Second operand has 6 states, 6 states have (on average 385.5) internal successors, (2313), 6 states have internal predecessors, (2313), 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 09:26:38,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:38,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 570 [2025-02-06 09:26:38,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand