./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:02:43,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:02:43,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:02:43,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:02:43,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:02:43,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:02:43,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:02:43,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:02:43,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:02:43,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:02:43,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:02:43,795 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:02:43,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:02:43,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:02:43,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2025-03-08 22:02:44,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:02:44,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:02:44,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:02:44,037 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:02:44,037 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:02:44,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-03-08 22:02:45,132 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f17472e/35a28296e98e490388b8c12c1a8e674e/FLAGa9c74f869 [2025-03-08 22:02:45,384 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:02:45,384 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-03-08 22:02:45,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f17472e/35a28296e98e490388b8c12c1a8e674e/FLAGa9c74f869 [2025-03-08 22:02:45,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f17472e/35a28296e98e490388b8c12c1a8e674e [2025-03-08 22:02:45,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:02:45,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:02:45,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:02:45,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:02:45,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:02:45,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e78939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45, skipping insertion in model container [2025-03-08 22:02:45,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:02:45,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:02:45,744 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:02:45,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:02:45,817 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:02:45,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45 WrapperNode [2025-03-08 22:02:45,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:02:45,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:02:45,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:02:45,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:02:45,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,860 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 412 [2025-03-08 22:02:45,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:02:45,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:02:45,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:02:45,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:02:45,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,884 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:02:45,892 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:02:45,892 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:02:45,892 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:02:45,892 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (1/1) ... [2025-03-08 22:02:45,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:02:45,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:45,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:02:45,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:02:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 22:02:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:02:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:02:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:02:45,939 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:02:46,034 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:02:46,036 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:02:46,450 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-08 22:02:46,452 INFO L1307 $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 [2025-03-08 22:02:46,551 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:02:46,551 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:02:46,579 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:02:46,580 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:02:46,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:02:46 BoogieIcfgContainer [2025-03-08 22:02:46,580 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:02:46,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:02:46,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:02:46,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:02:46,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:02:45" (1/3) ... [2025-03-08 22:02:46,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c5e8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:02:46, skipping insertion in model container [2025-03-08 22:02:46,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:45" (2/3) ... [2025-03-08 22:02:46,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c5e8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:02:46, skipping insertion in model container [2025-03-08 22:02:46,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:02:46" (3/3) ... [2025-03-08 22:02:46,591 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2025-03-08 22:02:46,602 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:02:46,604 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_71-funloop_racing.i that has 2 procedures, 394 locations, 1 initial locations, 17 loop locations, and 17 error locations. [2025-03-08 22:02:46,604 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:02:46,677 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:02:46,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 437 transitions, 881 flow [2025-03-08 22:02:46,878 INFO L124 PetriNetUnfolderBase]: 70/666 cut-off events. [2025-03-08 22:02:46,880 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:02:46,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 666 events. 70/666 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3325 event pairs, 0 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 343. Up to 8 conditions per place. [2025-03-08 22:02:46,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 397 places, 437 transitions, 881 flow [2025-03-08 22:02:46,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 397 places, 437 transitions, 881 flow [2025-03-08 22:02:46,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:02:46,915 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a63f2e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:02:46,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-03-08 22:02:46,930 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:02:46,930 INFO L124 PetriNetUnfolderBase]: 4/129 cut-off events. [2025-03-08 22:02:46,930 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:02:46,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:46,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:46,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:46,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1255724097, now seen corresponding path program 1 times [2025-03-08 22:02:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:46,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912904863] [2025-03-08 22:02:46,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:46,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:47,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 22:02:47,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 22:02:47,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:47,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:47,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912904863] [2025-03-08 22:02:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912904863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:47,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:02:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086220026] [2025-03-08 22:02:47,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:47,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:47,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:47,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:47,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 437 [2025-03-08 22:02:47,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 437 transitions, 881 flow. Second operand has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 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) [2025-03-08 22:02:47,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:47,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 437 [2025-03-08 22:02:47,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:47,692 INFO L124 PetriNetUnfolderBase]: 161/2146 cut-off events. [2025-03-08 22:02:47,692 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2025-03-08 22:02:47,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2455 conditions, 2146 events. 161/2146 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17550 event pairs, 120 based on Foata normal form. 285/2245 useless extension candidates. Maximal degree in co-relation 2124. Up to 302 conditions per place. [2025-03-08 22:02:47,706 INFO L140 encePairwiseOnDemand]: 398/437 looper letters, 29 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2025-03-08 22:02:47,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 396 transitions, 861 flow [2025-03-08 22:02:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:47,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1172 transitions. [2025-03-08 22:02:47,722 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8939740655987796 [2025-03-08 22:02:47,725 INFO L175 Difference]: Start difference. First operand has 397 places, 437 transitions, 881 flow. Second operand 3 states and 1172 transitions. [2025-03-08 22:02:47,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 396 transitions, 861 flow [2025-03-08 22:02:47,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 396 transitions, 861 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:47,739 INFO L231 Difference]: Finished difference. Result has 394 places, 396 transitions, 809 flow [2025-03-08 22:02:47,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=809, PETRI_PLACES=394, PETRI_TRANSITIONS=396} [2025-03-08 22:02:47,746 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, -3 predicate places. [2025-03-08 22:02:47,747 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 396 transitions, 809 flow [2025-03-08 22:02:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 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) [2025-03-08 22:02:47,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:47,747 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:47,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:02:47,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:47,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1696817222, now seen corresponding path program 1 times [2025-03-08 22:02:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158748120] [2025-03-08 22:02:47,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:47,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:02:47,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:02:47,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:47,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:47,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158748120] [2025-03-08 22:02:47,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158748120] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:02:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226088259] [2025-03-08 22:02:47,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:47,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:47,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:47,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:02:47,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:02:47,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:02:47,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:02:47,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:47,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:48,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:02:48,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:02:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:48,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:02:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:48,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226088259] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:02:48,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:02:48,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-08 22:02:48,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037656196] [2025-03-08 22:02:48,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:02:48,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:02:48,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:48,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:02:48,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:02:48,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 437 [2025-03-08 22:02:48,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 396 transitions, 809 flow. Second operand has 10 states, 10 states have (on average 366.8) internal successors, (3668), 10 states have internal predecessors, (3668), 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) [2025-03-08 22:02:48,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:48,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 437 [2025-03-08 22:02:48,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:48,501 INFO L124 PetriNetUnfolderBase]: 161/2153 cut-off events. [2025-03-08 22:02:48,501 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2025-03-08 22:02:48,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 2153 events. 161/2153 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17372 event pairs, 120 based on Foata normal form. 2/1969 useless extension candidates. Maximal degree in co-relation 2386. Up to 302 conditions per place. [2025-03-08 22:02:48,512 INFO L140 encePairwiseOnDemand]: 431/437 looper letters, 33 selfloop transitions, 9 changer transitions 0/404 dead transitions. [2025-03-08 22:02:48,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 404 transitions, 911 flow [2025-03-08 22:02:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:02:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 22:02:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3329 transitions. [2025-03-08 22:02:48,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8464276633613018 [2025-03-08 22:02:48,519 INFO L175 Difference]: Start difference. First operand has 394 places, 396 transitions, 809 flow. Second operand 9 states and 3329 transitions. [2025-03-08 22:02:48,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 404 transitions, 911 flow [2025-03-08 22:02:48,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 404 transitions, 909 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:02:48,529 INFO L231 Difference]: Finished difference. Result has 404 places, 402 transitions, 857 flow [2025-03-08 22:02:48,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=857, PETRI_PLACES=404, PETRI_TRANSITIONS=402} [2025-03-08 22:02:48,530 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, 7 predicate places. [2025-03-08 22:02:48,531 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 402 transitions, 857 flow [2025-03-08 22:02:48,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 366.8) internal successors, (3668), 10 states have internal predecessors, (3668), 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) [2025-03-08 22:02:48,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:48,533 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:48,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:02:48,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:48,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1478203686, now seen corresponding path program 2 times [2025-03-08 22:02:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466951203] [2025-03-08 22:02:48,737 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:02:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:48,762 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-08 22:02:48,778 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-03-08 22:02:48,779 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:02:48,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 22:02:49,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:49,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466951203] [2025-03-08 22:02:49,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466951203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:49,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:49,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:49,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432204669] [2025-03-08 22:02:49,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:49,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:49,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:49,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:49,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:02:49,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 437 [2025-03-08 22:02:49,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 402 transitions, 857 flow. Second operand has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 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) [2025-03-08 22:02:49,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:49,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 437 [2025-03-08 22:02:49,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:50,574 INFO L124 PetriNetUnfolderBase]: 2280/9205 cut-off events. [2025-03-08 22:02:50,575 INFO L125 PetriNetUnfolderBase]: For 11/14 co-relation queries the response was YES. [2025-03-08 22:02:50,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13691 conditions, 9205 events. 2280/9205 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 94452 event pairs, 1764 based on Foata normal form. 0/8367 useless extension candidates. Maximal degree in co-relation 13567. Up to 4224 conditions per place. [2025-03-08 22:02:50,609 INFO L140 encePairwiseOnDemand]: 410/437 looper letters, 133 selfloop transitions, 86 changer transitions 0/519 dead transitions. [2025-03-08 22:02:50,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 519 transitions, 1529 flow [2025-03-08 22:02:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:02:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:02:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1996 transitions. [2025-03-08 22:02:50,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7612509534706331 [2025-03-08 22:02:50,615 INFO L175 Difference]: Start difference. First operand has 404 places, 402 transitions, 857 flow. Second operand 6 states and 1996 transitions. [2025-03-08 22:02:50,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 519 transitions, 1529 flow [2025-03-08 22:02:50,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 519 transitions, 1523 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-08 22:02:50,626 INFO L231 Difference]: Finished difference. Result has 413 places, 487 transitions, 1417 flow [2025-03-08 22:02:50,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1417, PETRI_PLACES=413, PETRI_TRANSITIONS=487} [2025-03-08 22:02:50,628 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, 16 predicate places. [2025-03-08 22:02:50,628 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 487 transitions, 1417 flow [2025-03-08 22:02:50,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 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) [2025-03-08 22:02:50,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:50,629 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] [2025-03-08 22:02:50,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:02:50,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:50,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1059436389, now seen corresponding path program 1 times [2025-03-08 22:02:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:50,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567196763] [2025-03-08 22:02:50,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:50,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-08 22:02:50,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-08 22:02:50,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:50,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 22:02:50,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:50,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567196763] [2025-03-08 22:02:50,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567196763] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:50,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:50,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:02:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826168602] [2025-03-08 22:02:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:50,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:50,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:50,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:50,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:50,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 437 [2025-03-08 22:02:50,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 487 transitions, 1417 flow. Second operand has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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) [2025-03-08 22:02:50,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:50,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 437 [2025-03-08 22:02:50,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:51,044 INFO L124 PetriNetUnfolderBase]: 375/2998 cut-off events. [2025-03-08 22:02:51,045 INFO L125 PetriNetUnfolderBase]: For 158/180 co-relation queries the response was YES. [2025-03-08 22:02:51,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 2998 events. 375/2998 cut-off events. For 158/180 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 26524 event pairs, 136 based on Foata normal form. 1/2751 useless extension candidates. Maximal degree in co-relation 3948. Up to 374 conditions per place. [2025-03-08 22:02:51,056 INFO L140 encePairwiseOnDemand]: 434/437 looper letters, 36 selfloop transitions, 3 changer transitions 0/495 dead transitions. [2025-03-08 22:02:51,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 495 transitions, 1511 flow [2025-03-08 22:02:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2025-03-08 22:02:51,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8718535469107551 [2025-03-08 22:02:51,059 INFO L175 Difference]: Start difference. First operand has 413 places, 487 transitions, 1417 flow. Second operand 3 states and 1143 transitions. [2025-03-08 22:02:51,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 495 transitions, 1511 flow [2025-03-08 22:02:51,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 495 transitions, 1511 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:51,069 INFO L231 Difference]: Finished difference. Result has 416 places, 487 transitions, 1428 flow [2025-03-08 22:02:51,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1428, PETRI_PLACES=416, PETRI_TRANSITIONS=487} [2025-03-08 22:02:51,070 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, 19 predicate places. [2025-03-08 22:02:51,071 INFO L471 AbstractCegarLoop]: Abstraction has has 416 places, 487 transitions, 1428 flow [2025-03-08 22:02:51,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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) [2025-03-08 22:02:51,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:51,071 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:51,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:02:51,072 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:51,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1283528591, now seen corresponding path program 1 times [2025-03-08 22:02:51,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:51,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718711549] [2025-03-08 22:02:51,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:51,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-08 22:02:51,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-08 22:02:51,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:51,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:51,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:51,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718711549] [2025-03-08 22:02:51,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718711549] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:02:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270859912] [2025-03-08 22:02:51,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:51,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:51,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:51,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:02:51,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:02:51,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-08 22:02:51,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-08 22:02:51,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:51,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:51,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:02:51,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:02:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:51,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:02:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:51,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270859912] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:02:51,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:02:51,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-08 22:02:51,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181006510] [2025-03-08 22:02:51,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:02:51,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 22:02:51,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:51,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 22:02:51,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-08 22:02:51,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 437 [2025-03-08 22:02:51,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 487 transitions, 1428 flow. Second operand has 18 states, 18 states have (on average 366.94444444444446) internal successors, (6605), 18 states have internal predecessors, (6605), 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) [2025-03-08 22:02:51,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:51,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 437 [2025-03-08 22:02:51,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:52,061 INFO L124 PetriNetUnfolderBase]: 361/2918 cut-off events. [2025-03-08 22:02:52,061 INFO L125 PetriNetUnfolderBase]: For 156/183 co-relation queries the response was YES. [2025-03-08 22:02:52,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4344 conditions, 2918 events. 361/2918 cut-off events. For 156/183 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 25557 event pairs, 120 based on Foata normal form. 4/2697 useless extension candidates. Maximal degree in co-relation 4142. Up to 556 conditions per place. [2025-03-08 22:02:52,084 INFO L140 encePairwiseOnDemand]: 431/437 looper letters, 37 selfloop transitions, 21 changer transitions 0/505 dead transitions. [2025-03-08 22:02:52,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 505 transitions, 1632 flow [2025-03-08 22:02:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-08 22:02:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-08 22:02:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7727 transitions. [2025-03-08 22:02:52,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.84199629508554 [2025-03-08 22:02:52,099 INFO L175 Difference]: Start difference. First operand has 416 places, 487 transitions, 1428 flow. Second operand 21 states and 7727 transitions. [2025-03-08 22:02:52,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 505 transitions, 1632 flow [2025-03-08 22:02:52,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 505 transitions, 1626 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:02:52,110 INFO L231 Difference]: Finished difference. Result has 439 places, 500 transitions, 1552 flow [2025-03-08 22:02:52,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1552, PETRI_PLACES=439, PETRI_TRANSITIONS=500} [2025-03-08 22:02:52,113 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, 42 predicate places. [2025-03-08 22:02:52,113 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 500 transitions, 1552 flow [2025-03-08 22:02:52,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 366.94444444444446) internal successors, (6605), 18 states have internal predecessors, (6605), 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) [2025-03-08 22:02:52,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:52,116 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:52,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:02:52,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:52,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:52,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1517517135, now seen corresponding path program 2 times [2025-03-08 22:02:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826369428] [2025-03-08 22:02:52,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:02:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:52,335 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-08 22:02:52,354 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-08 22:02:52,355 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:02:52,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:52,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:52,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826369428] [2025-03-08 22:02:52,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826369428] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:02:52,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192252460] [2025-03-08 22:02:52,638 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:02:52,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:52,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:52,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:02:52,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:02:52,699 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-08 22:02:52,741 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-08 22:02:52,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:02:52,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:52,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 22:02:52,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:02:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:52,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:02:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:53,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192252460] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:02:53,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:02:53,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-08 22:02:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534440576] [2025-03-08 22:02:53,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:02:53,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-08 22:02:53,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:53,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-08 22:02:53,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-08 22:02:53,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 437 [2025-03-08 22:02:53,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 500 transitions, 1552 flow. Second operand has 23 states, 23 states have (on average 367.04347826086956) internal successors, (8442), 23 states have internal predecessors, (8442), 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) [2025-03-08 22:02:53,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:53,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 437 [2025-03-08 22:02:53,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:53,632 INFO L124 PetriNetUnfolderBase]: 361/2933 cut-off events. [2025-03-08 22:02:53,632 INFO L125 PetriNetUnfolderBase]: For 257/284 co-relation queries the response was YES. [2025-03-08 22:02:53,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4444 conditions, 2933 events. 361/2933 cut-off events. For 257/284 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 25584 event pairs, 120 based on Foata normal form. 3/2711 useless extension candidates. Maximal degree in co-relation 4142. Up to 556 conditions per place. [2025-03-08 22:02:53,651 INFO L140 encePairwiseOnDemand]: 431/437 looper letters, 40 selfloop transitions, 30 changer transitions 0/517 dead transitions. [2025-03-08 22:02:53,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 517 transitions, 1820 flow [2025-03-08 22:02:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-08 22:02:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-08 22:02:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11023 transitions. [2025-03-08 22:02:53,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8408085430968726 [2025-03-08 22:02:53,668 INFO L175 Difference]: Start difference. First operand has 439 places, 500 transitions, 1552 flow. Second operand 30 states and 11023 transitions. [2025-03-08 22:02:53,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 517 transitions, 1820 flow [2025-03-08 22:02:53,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 517 transitions, 1790 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-03-08 22:02:53,682 INFO L231 Difference]: Finished difference. Result has 466 places, 510 transitions, 1680 flow [2025-03-08 22:02:53,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=1528, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1680, PETRI_PLACES=466, PETRI_TRANSITIONS=510} [2025-03-08 22:02:53,683 INFO L279 CegarLoopForPetriNet]: 397 programPoint places, 69 predicate places. [2025-03-08 22:02:53,684 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 510 transitions, 1680 flow [2025-03-08 22:02:53,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 367.04347826086956) internal successors, (8442), 23 states have internal predecessors, (8442), 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) [2025-03-08 22:02:53,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:53,687 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:53,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 22:02:53,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:53,892 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-03-08 22:02:53,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash 210233430, now seen corresponding path program 3 times [2025-03-08 22:02:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:53,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477748493] [2025-03-08 22:02:53,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 22:02:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:53,909 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 11 equivalence classes. [2025-03-08 22:02:53,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 22:02:53,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-08 22:02:53,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:02:53,974 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:02:53,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 22:02:53,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 22:02:53,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:53,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:02:54,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:02:54,021 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:02:54,021 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-03-08 22:02:54,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2025-03-08 22:02:54,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2025-03-08 22:02:54,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2025-03-08 22:02:54,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2025-03-08 22:02:54,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2025-03-08 22:02:54,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2025-03-08 22:02:54,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2025-03-08 22:02:54,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:02:54,027 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-03-08 22:02:54,029 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:02:54,029 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:02:54,073 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:02:54,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 497 places, 550 transitions, 1116 flow [2025-03-08 22:02:54,193 INFO L124 PetriNetUnfolderBase]: 113/1035 cut-off events. [2025-03-08 22:02:54,193 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-08 22:02:54,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 1035 events. 113/1035 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6065 event pairs, 0 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 668. Up to 12 conditions per place. [2025-03-08 22:02:54,203 INFO L82 GeneralOperation]: Start removeDead. Operand has 497 places, 550 transitions, 1116 flow [2025-03-08 22:02:54,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 497 places, 550 transitions, 1116 flow [2025-03-08 22:02:54,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:02:54,208 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;@3a63f2e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:02:54,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-08 22:02:54,213 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:02:54,213 INFO L124 PetriNetUnfolderBase]: 4/129 cut-off events. [2025-03-08 22:02:54,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:02:54,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:54,214 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:54,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-03-08 22:02:54,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:54,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2131633177, now seen corresponding path program 1 times [2025-03-08 22:02:54,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:54,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900484887] [2025-03-08 22:02:54,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:54,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:54,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 22:02:54,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 22:02:54,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:54,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:54,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:54,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900484887] [2025-03-08 22:02:54,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900484887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:54,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:54,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:02:54,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826443154] [2025-03-08 22:02:54,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:54,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:54,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:54,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:54,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:54,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 550 [2025-03-08 22:02:54,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 550 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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) [2025-03-08 22:02:54,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:54,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 550 [2025-03-08 22:02:54,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:56,442 INFO L124 PetriNetUnfolderBase]: 2887/20258 cut-off events. [2025-03-08 22:02:56,443 INFO L125 PetriNetUnfolderBase]: For 153/157 co-relation queries the response was YES. [2025-03-08 22:02:56,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24514 conditions, 20258 events. 2887/20258 cut-off events. For 153/157 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 271352 event pairs, 2376 based on Foata normal form. 3869/22410 useless extension candidates. Maximal degree in co-relation 21856. Up to 4183 conditions per place. [2025-03-08 22:02:56,559 INFO L140 encePairwiseOnDemand]: 499/550 looper letters, 39 selfloop transitions, 2 changer transitions 0/495 dead transitions. [2025-03-08 22:02:56,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 495 transitions, 1088 flow [2025-03-08 22:02:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:56,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:56,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1464 transitions. [2025-03-08 22:02:56,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8872727272727273 [2025-03-08 22:02:56,563 INFO L175 Difference]: Start difference. First operand has 497 places, 550 transitions, 1116 flow. Second operand 3 states and 1464 transitions. [2025-03-08 22:02:56,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 495 transitions, 1088 flow [2025-03-08 22:02:56,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 495 transitions, 1088 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:56,568 INFO L231 Difference]: Finished difference. Result has 492 places, 495 transitions, 1016 flow [2025-03-08 22:02:56,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1016, PETRI_PLACES=492, PETRI_TRANSITIONS=495} [2025-03-08 22:02:56,569 INFO L279 CegarLoopForPetriNet]: 497 programPoint places, -5 predicate places. [2025-03-08 22:02:56,569 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 495 transitions, 1016 flow [2025-03-08 22:02:56,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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) [2025-03-08 22:02:56,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:56,570 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:56,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:02:56,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-03-08 22:02:56,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1126435078, now seen corresponding path program 1 times [2025-03-08 22:02:56,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:56,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207905883] [2025-03-08 22:02:56,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:56,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:56,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:02:56,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:02:56,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:56,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:56,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207905883] [2025-03-08 22:02:56,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207905883] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:02:56,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620526203] [2025-03-08 22:02:56,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:56,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:56,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:56,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:02:56,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:02:56,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:02:56,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:02:56,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:56,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:56,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:02:56,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:02:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:56,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:02:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620526203] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:02:56,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:02:56,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-08 22:02:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849947574] [2025-03-08 22:02:56,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:02:56,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:02:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:56,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:02:56,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:02:56,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 550 [2025-03-08 22:02:56,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 495 transitions, 1016 flow. Second operand has 10 states, 10 states have (on average 456.8) internal successors, (4568), 10 states have internal predecessors, (4568), 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) [2025-03-08 22:02:56,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:56,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 550 [2025-03-08 22:02:56,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:59,190 INFO L124 PetriNetUnfolderBase]: 2887/20265 cut-off events. [2025-03-08 22:02:59,190 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2025-03-08 22:02:59,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24540 conditions, 20265 events. 2887/20265 cut-off events. For 152/156 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 271522 event pairs, 2376 based on Foata normal form. 2/18550 useless extension candidates. Maximal degree in co-relation 24444. Up to 4183 conditions per place. [2025-03-08 22:02:59,341 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 43 selfloop transitions, 9 changer transitions 0/503 dead transitions. [2025-03-08 22:02:59,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 503 transitions, 1138 flow [2025-03-08 22:02:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:02:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 22:02:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4149 transitions. [2025-03-08 22:02:59,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8381818181818181 [2025-03-08 22:02:59,349 INFO L175 Difference]: Start difference. First operand has 492 places, 495 transitions, 1016 flow. Second operand 9 states and 4149 transitions. [2025-03-08 22:02:59,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 503 transitions, 1138 flow [2025-03-08 22:02:59,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 503 transitions, 1136 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:02:59,357 INFO L231 Difference]: Finished difference. Result has 502 places, 501 transitions, 1064 flow [2025-03-08 22:02:59,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1064, PETRI_PLACES=502, PETRI_TRANSITIONS=501} [2025-03-08 22:02:59,358 INFO L279 CegarLoopForPetriNet]: 497 programPoint places, 5 predicate places. [2025-03-08 22:02:59,358 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 501 transitions, 1064 flow [2025-03-08 22:02:59,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 456.8) internal successors, (4568), 10 states have internal predecessors, (4568), 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) [2025-03-08 22:02:59,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:59,360 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:59,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 22:02:59,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:02:59,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-03-08 22:02:59,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1979435430, now seen corresponding path program 2 times [2025-03-08 22:02:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:59,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239379678] [2025-03-08 22:02:59,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:02:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:59,576 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-08 22:02:59,581 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-03-08 22:02:59,582 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:02:59,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 22:02:59,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:59,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239379678] [2025-03-08 22:02:59,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239379678] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:59,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:59,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:59,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813073837] [2025-03-08 22:02:59,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:59,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:59,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:59,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:59,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:00,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 550 [2025-03-08 22:03:00,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 501 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 367.5) internal successors, (2205), 6 states have internal predecessors, (2205), 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) [2025-03-08 22:03:00,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:00,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 550 [2025-03-08 22:03:00,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand