./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:26:33,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:26:33,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:26:33,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:26:33,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:26:33,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:26:33,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:26:33,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:26:33,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:26:33,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:26:33,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:26:33,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:26:33,111 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:26:33,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:26:33,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:26:33,113 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:26:33,114 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:33,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:26:33,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:26:33,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:26:33,115 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 -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2025-02-06 09:26:33,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:26:33,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:26:33,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:26:33,417 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:26:33,418 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:26:33,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2025-02-06 09:26:34,790 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eeb7a3769/7111e8725bdf4fffb932060931b660fc/FLAG03f1c62a6 [2025-02-06 09:26:35,138 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:26:35,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2025-02-06 09:26:35,157 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eeb7a3769/7111e8725bdf4fffb932060931b660fc/FLAG03f1c62a6 [2025-02-06 09:26:35,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eeb7a3769/7111e8725bdf4fffb932060931b660fc [2025-02-06 09:26:35,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:26:35,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:26:35,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:35,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:26:35,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:26:35,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e36435f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35, skipping insertion in model container [2025-02-06 09:26:35,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:26:35,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:35,607 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:26:35,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:26:35,741 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:26:35,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35 WrapperNode [2025-02-06 09:26:35,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:26:35,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:35,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:26:35,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:26:35,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,792 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 329 [2025-02-06 09:26:35,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:26:35,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:26:35,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:26:35,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:26:35,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:26:35,834 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:26:35,835 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:26:35,835 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:26:35,836 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (1/1) ... [2025-02-06 09:26:35,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:26:35,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:35,876 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 09:26:35,880 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 09:26:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:26:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:26:35,903 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:26:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:26:35,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:26:35,905 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 09:26:36,052 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:26:36,056 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:26:36,543 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 09:26:36,543 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 09:26:36,730 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:26:36,730 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:26:36,773 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:26:36,773 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:26:36,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:36 BoogieIcfgContainer [2025-02-06 09:26:36,774 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:26:36,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:26:36,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:26:36,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:26:36,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:26:35" (1/3) ... [2025-02-06 09:26:36,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d27802d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:36, skipping insertion in model container [2025-02-06 09:26:36,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:26:35" (2/3) ... [2025-02-06 09:26:36,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d27802d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:26:36, skipping insertion in model container [2025-02-06 09:26:36,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:26:36" (3/3) ... [2025-02-06 09:26:36,782 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2025-02-06 09:26:36,798 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:26:36,800 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_77-tricky_address4_racing.i that has 2 procedures, 327 locations, 1 initial locations, 13 loop locations, and 12 error locations. [2025-02-06 09:26:36,800 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:26:36,893 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:26:36,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:37,144 INFO L124 PetriNetUnfolderBase]: 43/487 cut-off events. [2025-02-06 09:26:37,146 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:26:37,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 487 events. 43/487 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1703 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 252. Up to 8 conditions per place. [2025-02-06 09:26:37,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:37,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 357 transitions, 721 flow [2025-02-06 09:26:37,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:37,194 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;@e70707c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:37,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-02-06 09:26:37,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:37,215 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2025-02-06 09:26:37,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:37,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:37,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:37,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:37,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:37,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1390720099, now seen corresponding path program 1 times [2025-02-06 09:26:37,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:37,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124934362] [2025-02-06 09:26:37,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:37,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 09:26:37,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:26:37,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:37,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:37,746 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 09:26:37,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:37,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124934362] [2025-02-06 09:26:37,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124934362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:37,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:37,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:37,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918194671] [2025-02-06 09:26:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:37,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:37,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:37,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:37,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:37,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 357 [2025-02-06 09:26:37,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 357 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:37,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:37,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 357 [2025-02-06 09:26:37,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:38,159 INFO L124 PetriNetUnfolderBase]: 85/1343 cut-off events. [2025-02-06 09:26:38,160 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:26:38,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 1343 events. 85/1343 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8601 event pairs, 72 based on Foata normal form. 245/1473 useless extension candidates. Maximal degree in co-relation 1280. Up to 178 conditions per place. [2025-02-06 09:26:38,175 INFO L140 encePairwiseOnDemand]: 328/357 looper letters, 23 selfloop transitions, 2 changer transitions 1/328 dead transitions. [2025-02-06 09:26:38,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 328 transitions, 713 flow [2025-02-06 09:26:38,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 967 transitions. [2025-02-06 09:26:38,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9028944911297853 [2025-02-06 09:26:38,203 INFO L175 Difference]: Start difference. First operand has 330 places, 357 transitions, 721 flow. Second operand 3 states and 967 transitions. [2025-02-06 09:26:38,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 328 transitions, 713 flow [2025-02-06 09:26:38,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 328 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:38,222 INFO L231 Difference]: Finished difference. Result has 329 places, 327 transitions, 671 flow [2025-02-06 09:26:38,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=329, PETRI_TRANSITIONS=327} [2025-02-06 09:26:38,230 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, -1 predicate places. [2025-02-06 09:26:38,231 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 327 transitions, 671 flow [2025-02-06 09:26:38,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:38,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:38,233 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:38,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:26:38,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:38,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1286066485, now seen corresponding path program 1 times [2025-02-06 09:26:38,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:38,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641401618] [2025-02-06 09:26:38,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:38,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:38,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:38,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:38,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:38,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:38,528 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 09:26:38,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641401618] [2025-02-06 09:26:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641401618] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217791402] [2025-02-06 09:26:38,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:38,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:38,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:38,533 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 09:26:38,535 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 09:26:38,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:38,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:38,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:38,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:38,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:38,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:38,742 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 09:26:38,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:38,794 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 09:26:38,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217791402] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:38,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:38,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413272571] [2025-02-06 09:26:38,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:38,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:38,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:38,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:38,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:38,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 327 transitions, 671 flow. Second operand has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:38,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:38,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:38,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:39,281 INFO L124 PetriNetUnfolderBase]: 85/1349 cut-off events. [2025-02-06 09:26:39,281 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 09:26:39,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 1349 events. 85/1349 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8572 event pairs, 72 based on Foata normal form. 2/1237 useless extension candidates. Maximal degree in co-relation 1457. Up to 178 conditions per place. [2025-02-06 09:26:39,294 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 27 selfloop transitions, 9 changer transitions 0/335 dead transitions. [2025-02-06 09:26:39,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 335 transitions, 761 flow [2025-02-06 09:26:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2756 transitions. [2025-02-06 09:26:39,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8577653283535637 [2025-02-06 09:26:39,309 INFO L175 Difference]: Start difference. First operand has 329 places, 327 transitions, 671 flow. Second operand 9 states and 2756 transitions. [2025-02-06 09:26:39,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 335 transitions, 761 flow [2025-02-06 09:26:39,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 335 transitions, 759 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:39,321 INFO L231 Difference]: Finished difference. Result has 338 places, 333 transitions, 719 flow [2025-02-06 09:26:39,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=719, PETRI_PLACES=338, PETRI_TRANSITIONS=333} [2025-02-06 09:26:39,322 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 8 predicate places. [2025-02-06 09:26:39,322 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 333 transitions, 719 flow [2025-02-06 09:26:39,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:39,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:39,325 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 09:26:39,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:26:39,526 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 09:26:39,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:39,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:39,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1438347829, now seen corresponding path program 2 times [2025-02-06 09:26:39,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:39,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145091471] [2025-02-06 09:26:39,528 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:39,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:39,550 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-02-06 09:26:39,576 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 117 statements. [2025-02-06 09:26:39,576 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:39,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:40,296 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 09:26:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:40,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145091471] [2025-02-06 09:26:40,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145091471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:40,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:40,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:40,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530340816] [2025-02-06 09:26:40,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:40,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:40,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:40,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:40,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:40,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 357 [2025-02-06 09:26:40,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 333 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:40,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:40,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 357 [2025-02-06 09:26:40,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:41,862 INFO L124 PetriNetUnfolderBase]: 1365/5339 cut-off events. [2025-02-06 09:26:41,863 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 09:26:41,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8137 conditions, 5339 events. 1365/5339 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 47261 event pairs, 929 based on Foata normal form. 0/4929 useless extension candidates. Maximal degree in co-relation 8013. Up to 2545 conditions per place. [2025-02-06 09:26:41,898 INFO L140 encePairwiseOnDemand]: 330/357 looper letters, 107 selfloop transitions, 86 changer transitions 0/450 dead transitions. [2025-02-06 09:26:41,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 450 transitions, 1339 flow [2025-02-06 09:26:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:26:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:26:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1712 transitions. [2025-02-06 09:26:41,904 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7992530345471522 [2025-02-06 09:26:41,904 INFO L175 Difference]: Start difference. First operand has 338 places, 333 transitions, 719 flow. Second operand 6 states and 1712 transitions. [2025-02-06 09:26:41,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 450 transitions, 1339 flow [2025-02-06 09:26:41,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 450 transitions, 1333 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:41,916 INFO L231 Difference]: Finished difference. Result has 347 places, 418 transitions, 1279 flow [2025-02-06 09:26:41,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1279, PETRI_PLACES=347, PETRI_TRANSITIONS=418} [2025-02-06 09:26:41,917 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 17 predicate places. [2025-02-06 09:26:41,918 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 418 transitions, 1279 flow [2025-02-06 09:26:41,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:41,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:41,919 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:41,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:26:41,919 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:41,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1762348666, now seen corresponding path program 1 times [2025-02-06 09:26:41,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:41,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947754140] [2025-02-06 09:26:41,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:41,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:41,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-06 09:26:41,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-06 09:26:41,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:41,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:42,017 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 09:26:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947754140] [2025-02-06 09:26:42,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947754140] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:42,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:42,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800075246] [2025-02-06 09:26:42,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:42,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:42,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:42,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:42,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 357 [2025-02-06 09:26:42,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 418 transitions, 1279 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:42,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:42,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 357 [2025-02-06 09:26:42,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:42,448 INFO L124 PetriNetUnfolderBase]: 285/2072 cut-off events. [2025-02-06 09:26:42,448 INFO L125 PetriNetUnfolderBase]: For 138/143 co-relation queries the response was YES. [2025-02-06 09:26:42,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 2072 events. 285/2072 cut-off events. For 138/143 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15396 event pairs, 55 based on Foata normal form. 1/1911 useless extension candidates. Maximal degree in co-relation 2916. Up to 235 conditions per place. [2025-02-06 09:26:42,463 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 30 selfloop transitions, 3 changer transitions 0/426 dead transitions. [2025-02-06 09:26:42,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 426 transitions, 1361 flow [2025-02-06 09:26:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 948 transitions. [2025-02-06 09:26:42,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8851540616246498 [2025-02-06 09:26:42,467 INFO L175 Difference]: Start difference. First operand has 347 places, 418 transitions, 1279 flow. Second operand 3 states and 948 transitions. [2025-02-06 09:26:42,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 426 transitions, 1361 flow [2025-02-06 09:26:42,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 426 transitions, 1361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:42,483 INFO L231 Difference]: Finished difference. Result has 350 places, 418 transitions, 1290 flow [2025-02-06 09:26:42,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1279, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=350, PETRI_TRANSITIONS=418} [2025-02-06 09:26:42,484 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 20 predicate places. [2025-02-06 09:26:42,485 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 418 transitions, 1290 flow [2025-02-06 09:26:42,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:42,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:42,486 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:42,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:26:42,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:42,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:42,488 INFO L85 PathProgramCache]: Analyzing trace with hash -586243548, now seen corresponding path program 1 times [2025-02-06 09:26:42,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:42,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552529357] [2025-02-06 09:26:42,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:42,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:42,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 09:26:42,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 09:26:42,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:42,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:42,704 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 09:26:42,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:42,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552529357] [2025-02-06 09:26:42,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552529357] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:42,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027689262] [2025-02-06 09:26:42,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:42,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:42,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:42,708 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 09:26:42,710 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 09:26:42,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 09:26:42,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 09:26:42,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:42,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:42,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:26:42,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:42,884 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 09:26:42,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:43,000 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 09:26:43,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027689262] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:43,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:43,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:26:43,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104088315] [2025-02-06 09:26:43,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:43,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:26:43,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:43,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:26:43,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:26:43,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:43,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 418 transitions, 1290 flow. Second operand has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:43,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:43,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:43,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:43,730 INFO L124 PetriNetUnfolderBase]: 237/1989 cut-off events. [2025-02-06 09:26:43,730 INFO L125 PetriNetUnfolderBase]: For 143/166 co-relation queries the response was YES. [2025-02-06 09:26:43,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2914 conditions, 1989 events. 237/1989 cut-off events. For 143/166 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14644 event pairs, 72 based on Foata normal form. 4/1849 useless extension candidates. Maximal degree in co-relation 2712. Up to 232 conditions per place. [2025-02-06 09:26:43,751 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 31 selfloop transitions, 21 changer transitions 0/436 dead transitions. [2025-02-06 09:26:43,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 436 transitions, 1482 flow [2025-02-06 09:26:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:26:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:26:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6398 transitions. [2025-02-06 09:26:43,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8534080298786181 [2025-02-06 09:26:43,768 INFO L175 Difference]: Start difference. First operand has 350 places, 418 transitions, 1290 flow. Second operand 21 states and 6398 transitions. [2025-02-06 09:26:43,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 436 transitions, 1482 flow [2025-02-06 09:26:43,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 436 transitions, 1476 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:26:43,781 INFO L231 Difference]: Finished difference. Result has 373 places, 431 transitions, 1414 flow [2025-02-06 09:26:43,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1414, PETRI_PLACES=373, PETRI_TRANSITIONS=431} [2025-02-06 09:26:43,784 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 43 predicate places. [2025-02-06 09:26:43,784 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 431 transitions, 1414 flow [2025-02-06 09:26:43,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:43,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:43,788 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:43,797 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 09:26:43,989 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 09:26:43,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:43,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1527094236, now seen corresponding path program 2 times [2025-02-06 09:26:43,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:43,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213580397] [2025-02-06 09:26:43,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:43,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:44,011 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 152 statements into 2 equivalence classes. [2025-02-06 09:26:44,039 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 152 of 152 statements. [2025-02-06 09:26:44,040 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:44,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:44,451 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 09:26:44,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:44,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213580397] [2025-02-06 09:26:44,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213580397] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:44,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020490039] [2025-02-06 09:26:44,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:44,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:44,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:44,455 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 09:26:44,460 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 09:26:44,535 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 152 statements into 2 equivalence classes. [2025-02-06 09:26:44,594 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 152 of 152 statements. [2025-02-06 09:26:44,594 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:26:44,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:44,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 09:26:44,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:44,726 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 09:26:44,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:44,945 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 09:26:44,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020490039] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:44,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:44,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:26:44,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307775289] [2025-02-06 09:26:44,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:44,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:26:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:44,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:26:44,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:26:45,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2025-02-06 09:26:45,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 431 transitions, 1414 flow. Second operand has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:45,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:45,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2025-02-06 09:26:45,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:45,683 INFO L124 PetriNetUnfolderBase]: 237/2004 cut-off events. [2025-02-06 09:26:45,683 INFO L125 PetriNetUnfolderBase]: For 244/267 co-relation queries the response was YES. [2025-02-06 09:26:45,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3014 conditions, 2004 events. 237/2004 cut-off events. For 244/267 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14668 event pairs, 72 based on Foata normal form. 3/1863 useless extension candidates. Maximal degree in co-relation 2712. Up to 232 conditions per place. [2025-02-06 09:26:45,700 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 34 selfloop transitions, 30 changer transitions 0/448 dead transitions. [2025-02-06 09:26:45,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 448 transitions, 1670 flow [2025-02-06 09:26:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:26:45,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:26:45,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9127 transitions. [2025-02-06 09:26:45,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8521942110177404 [2025-02-06 09:26:45,720 INFO L175 Difference]: Start difference. First operand has 373 places, 431 transitions, 1414 flow. Second operand 30 states and 9127 transitions. [2025-02-06 09:26:45,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 448 transitions, 1670 flow [2025-02-06 09:26:45,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 448 transitions, 1640 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 09:26:45,735 INFO L231 Difference]: Finished difference. Result has 400 places, 441 transitions, 1542 flow [2025-02-06 09:26:45,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1390, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1542, PETRI_PLACES=400, PETRI_TRANSITIONS=441} [2025-02-06 09:26:45,736 INFO L279 CegarLoopForPetriNet]: 330 programPoint places, 70 predicate places. [2025-02-06 09:26:45,736 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 441 transitions, 1542 flow [2025-02-06 09:26:45,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:45,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:45,742 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:45,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:26:45,946 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 09:26:45,946 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:26:45,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1554639988, now seen corresponding path program 3 times [2025-02-06 09:26:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:45,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110340502] [2025-02-06 09:26:45,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:26:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:45,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 167 statements into 11 equivalence classes. [2025-02-06 09:26:46,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 09:26:46,064 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 09:26:46,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:46,064 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:26:46,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-06 09:26:46,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 09:26:46,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:46,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:26:46,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:26:46,137 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:26:46,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-02-06 09:26:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2025-02-06 09:26:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2025-02-06 09:26:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2025-02-06 09:26:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2025-02-06 09:26:46,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:26:46,144 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-02-06 09:26:46,148 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:26:46,148 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:26:46,211 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:26:46,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:46,329 INFO L124 PetriNetUnfolderBase]: 72/765 cut-off events. [2025-02-06 09:26:46,330 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2025-02-06 09:26:46,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 765 events. 72/765 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3490 event pairs, 0 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 489. Up to 12 conditions per place. [2025-02-06 09:26:46,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:46,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 478 transitions, 972 flow [2025-02-06 09:26:46,353 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:26:46,354 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;@e70707c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:26:46,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 09:26:46,362 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:26:46,362 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2025-02-06 09:26:46,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:26:46,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:46,363 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:46,363 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:46,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1941719971, now seen corresponding path program 1 times [2025-02-06 09:26:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333490907] [2025-02-06 09:26:46,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:46,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:46,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 09:26:46,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:26:46,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:46,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:46,451 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 09:26:46,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:46,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333490907] [2025-02-06 09:26:46,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333490907] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:46,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:46,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:26:46,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998282522] [2025-02-06 09:26:46,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:46,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:26:46,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:46,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:26:46,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:26:46,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 478 [2025-02-06 09:26:46,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 478 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:46,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:46,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 478 [2025-02-06 09:26:46,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:48,396 INFO L124 PetriNetUnfolderBase]: 1580/12249 cut-off events. [2025-02-06 09:26:48,397 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2025-02-06 09:26:48,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14710 conditions, 12249 events. 1580/12249 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 147034 event pairs, 1464 based on Foata normal form. 3588/14934 useless extension candidates. Maximal degree in co-relation 13018. Up to 2408 conditions per place. [2025-02-06 09:26:48,609 INFO L140 encePairwiseOnDemand]: 436/478 looper letters, 33 selfloop transitions, 2 changer transitions 1/434 dead transitions. [2025-02-06 09:26:48,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 434 transitions, 954 flow [2025-02-06 09:26:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:26:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:26:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1281 transitions. [2025-02-06 09:26:48,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.893305439330544 [2025-02-06 09:26:48,613 INFO L175 Difference]: Start difference. First operand has 438 places, 478 transitions, 972 flow. Second operand 3 states and 1281 transitions. [2025-02-06 09:26:48,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 434 transitions, 954 flow [2025-02-06 09:26:48,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 434 transitions, 954 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:26:48,622 INFO L231 Difference]: Finished difference. Result has 435 places, 433 transitions, 892 flow [2025-02-06 09:26:48,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=435, PETRI_TRANSITIONS=433} [2025-02-06 09:26:48,623 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, -3 predicate places. [2025-02-06 09:26:48,623 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 433 transitions, 892 flow [2025-02-06 09:26:48,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:48,624 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:48,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:26:48,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:26:48,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:48,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:48,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1257403927, now seen corresponding path program 1 times [2025-02-06 09:26:48,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:48,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838934562] [2025-02-06 09:26:48,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:48,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:48,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:48,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:48,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:48,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:48,725 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 09:26:48,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838934562] [2025-02-06 09:26:48,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838934562] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:26:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430796555] [2025-02-06 09:26:48,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:26:48,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:26:48,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:26:48,728 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 09:26:48,730 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 09:26:48,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-06 09:26:48,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-06 09:26:48,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:26:48,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:48,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:26:48,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:26:48,856 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 09:26:48,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:26:48,892 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 09:26:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430796555] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:26:48,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:26:48,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:26:48,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477529670] [2025-02-06 09:26:48,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:26:48,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:26:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:48,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:26:48,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:26:48,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 478 [2025-02-06 09:26:48,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 433 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 400.8) internal successors, (4008), 10 states have internal predecessors, (4008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:48,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:48,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 478 [2025-02-06 09:26:48,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:26:50,913 INFO L124 PetriNetUnfolderBase]: 1580/12255 cut-off events. [2025-02-06 09:26:50,913 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-02-06 09:26:50,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14735 conditions, 12255 events. 1580/12255 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 146905 event pairs, 1464 based on Foata normal form. 2/11355 useless extension candidates. Maximal degree in co-relation 14639. Up to 2408 conditions per place. [2025-02-06 09:26:50,993 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 37 selfloop transitions, 9 changer transitions 0/441 dead transitions. [2025-02-06 09:26:50,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 441 transitions, 1002 flow [2025-02-06 09:26:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:26:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:26:50,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3639 transitions. [2025-02-06 09:26:51,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8458856345885635 [2025-02-06 09:26:51,001 INFO L175 Difference]: Start difference. First operand has 435 places, 433 transitions, 892 flow. Second operand 9 states and 3639 transitions. [2025-02-06 09:26:51,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 441 transitions, 1002 flow [2025-02-06 09:26:51,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 441 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:26:51,009 INFO L231 Difference]: Finished difference. Result has 444 places, 439 transitions, 940 flow [2025-02-06 09:26:51,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=940, PETRI_PLACES=444, PETRI_TRANSITIONS=439} [2025-02-06 09:26:51,011 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, 6 predicate places. [2025-02-06 09:26:51,011 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 439 transitions, 940 flow [2025-02-06 09:26:51,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 400.8) internal successors, (4008), 10 states have internal predecessors, (4008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:51,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:26:51,013 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 09:26:51,021 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 09:26:51,213 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 09:26:51,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:26:51,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:26:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1943345623, now seen corresponding path program 2 times [2025-02-06 09:26:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:26:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731776514] [2025-02-06 09:26:51,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:26:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:26:51,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-02-06 09:26:51,237 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 117 statements. [2025-02-06 09:26:51,240 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:26:51,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:26:51,544 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 09:26:51,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:26:51,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731776514] [2025-02-06 09:26:51,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731776514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:26:51,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:26:51,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:26:51,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053105252] [2025-02-06 09:26:51,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:26:51,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:26:51,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:26:51,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:26:51,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:26:51,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 478 [2025-02-06 09:26:51,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 439 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:26:51,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:26:51,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 478 [2025-02-06 09:26:51,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:16,274 INFO L124 PetriNetUnfolderBase]: 83051/199105 cut-off events. [2025-02-06 09:27:16,274 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2025-02-06 09:27:16,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324131 conditions, 199105 events. 83051/199105 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 3922. Compared 2657191 event pairs, 58482 based on Foata normal form. 0/185939 useless extension candidates. Maximal degree in co-relation 324006. Up to 116888 conditions per place. [2025-02-06 09:27:17,793 INFO L140 encePairwiseOnDemand]: 431/478 looper letters, 170 selfloop transitions, 166 changer transitions 0/669 dead transitions. [2025-02-06 09:27:17,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 669 transitions, 2077 flow [2025-02-06 09:27:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2025-02-06 09:27:17,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8078800557880056 [2025-02-06 09:27:17,799 INFO L175 Difference]: Start difference. First operand has 444 places, 439 transitions, 940 flow. Second operand 6 states and 2317 transitions. [2025-02-06 09:27:17,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 669 transitions, 2077 flow [2025-02-06 09:27:17,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 669 transitions, 2071 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:27:17,822 INFO L231 Difference]: Finished difference. Result has 453 places, 604 transitions, 2020 flow [2025-02-06 09:27:17,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2020, PETRI_PLACES=453, PETRI_TRANSITIONS=604} [2025-02-06 09:27:17,824 INFO L279 CegarLoopForPetriNet]: 438 programPoint places, 15 predicate places. [2025-02-06 09:27:17,825 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 604 transitions, 2020 flow [2025-02-06 09:27:17,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:17,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:17,826 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:17,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:27:17,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-06 09:27:17,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2094441978, now seen corresponding path program 1 times [2025-02-06 09:27:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549323094] [2025-02-06 09:27:17,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:17,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-06 09:27:17,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-06 09:27:17,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:17,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 09:27:17,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:17,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549323094] [2025-02-06 09:27:17,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549323094] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:17,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:17,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:27:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528135868] [2025-02-06 09:27:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:17,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:17,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:17,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:17,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 478 [2025-02-06 09:27:17,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 604 transitions, 2020 flow. Second operand has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:17,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:17,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 478 [2025-02-06 09:27:17,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand