./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:18:52,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:18:52,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:18:52,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:18:52,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:18:52,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:18:52,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:18:52,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:18:52,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:18:52,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:18:52,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:18:52,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:18:52,346 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:18:52,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:18:52,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:18:52,346 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:18:52,347 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:18:52,348 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:52,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:18:52,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:18:52,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:18:52,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:18:52,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:18:52,349 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2025-02-06 09:18:52,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:18:52,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:18:52,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:18:52,600 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:18:52,600 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:18:52,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2025-02-06 09:18:53,770 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b49bed267/479d2ae7e67d45c6b7a9d41c285f3a1d/FLAGffe5ec31b [2025-02-06 09:18:54,036 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:18:54,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2025-02-06 09:18:54,049 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b49bed267/479d2ae7e67d45c6b7a9d41c285f3a1d/FLAGffe5ec31b [2025-02-06 09:18:54,340 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b49bed267/479d2ae7e67d45c6b7a9d41c285f3a1d [2025-02-06 09:18:54,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:18:54,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:18:54,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:54,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:18:54,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:18:54,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f59f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54, skipping insertion in model container [2025-02-06 09:18:54,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:18:54,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:54,623 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:18:54,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:54,705 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:18:54,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54 WrapperNode [2025-02-06 09:18:54,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:54,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:54,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:18:54,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:18:54,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,775 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 872 [2025-02-06 09:18:54,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:54,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:18:54,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:18:54,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:18:54,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,833 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:18:54,862 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:18:54,862 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:18:54,862 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:18:54,863 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (1/1) ... [2025-02-06 09:18:54,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:18:54,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:18:54,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:18:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-06 09:18:54,910 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:18:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:18:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:18:54,912 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:18:55,026 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:18:55,028 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:18:55,993 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:18:55,993 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:18:56,041 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:18:56,043 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:18:56,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:56 BoogieIcfgContainer [2025-02-06 09:18:56,043 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:18:56,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:18:56,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:18:56,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:18:56,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:18:54" (1/3) ... [2025-02-06 09:18:56,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a5a343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:56, skipping insertion in model container [2025-02-06 09:18:56,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:54" (2/3) ... [2025-02-06 09:18:56,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a5a343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:56, skipping insertion in model container [2025-02-06 09:18:56,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:56" (3/3) ... [2025-02-06 09:18:56,052 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2025-02-06 09:18:56,062 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:18:56,063 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_3t.i that has 2 procedures, 982 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2025-02-06 09:18:56,063 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:18:56,211 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:18:56,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 985 places, 1061 transitions, 2129 flow [2025-02-06 09:18:56,754 INFO L124 PetriNetUnfolderBase]: 118/1556 cut-off events. [2025-02-06 09:18:56,757 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:18:56,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1556 events. 118/1556 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5754 event pairs, 0 based on Foata normal form. 0/1318 useless extension candidates. Maximal degree in co-relation 919. Up to 4 conditions per place. [2025-02-06 09:18:56,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 985 places, 1061 transitions, 2129 flow [2025-02-06 09:18:56,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 985 places, 1061 transitions, 2129 flow [2025-02-06 09:18:56,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:18:56,822 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;@6980f296, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:18:56,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2025-02-06 09:18:56,828 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:18:56,829 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-02-06 09:18:56,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:18:56,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:18:56,829 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] [2025-02-06 09:18:56,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:18:56,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:18:56,834 INFO L85 PathProgramCache]: Analyzing trace with hash 712998071, now seen corresponding path program 1 times [2025-02-06 09:18:56,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:18:56,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038632217] [2025-02-06 09:18:56,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:18:56,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:18:56,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 09:18:56,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 09:18:56,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:18:56,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:18:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:18:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:18:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038632217] [2025-02-06 09:18:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038632217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:18:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:18:57,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:18:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735934182] [2025-02-06 09:18:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:18:57,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:18:57,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:18:57,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:18:57,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:18:59,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-06 09:18:59,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 985 places, 1061 transitions, 2129 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:18:59,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:18:59,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-06 09:18:59,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:08,175 INFO L124 PetriNetUnfolderBase]: 12711/59975 cut-off events. [2025-02-06 09:19:08,175 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-02-06 09:19:08,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83384 conditions, 59975 events. 12711/59975 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 700857 event pairs, 11413 based on Foata normal form. 5891/58697 useless extension candidates. Maximal degree in co-relation 82649. Up to 23399 conditions per place. [2025-02-06 09:19:08,559 INFO L140 encePairwiseOnDemand]: 995/1061 looper letters, 239 selfloop transitions, 5 changer transitions 6/972 dead transitions. [2025-02-06 09:19:08,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 972 transitions, 2439 flow [2025-02-06 09:19:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4841 transitions. [2025-02-06 09:19:08,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604461200125667 [2025-02-06 09:19:08,586 INFO L175 Difference]: Start difference. First operand has 985 places, 1061 transitions, 2129 flow. Second operand 6 states and 4841 transitions. [2025-02-06 09:19:08,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 972 transitions, 2439 flow [2025-02-06 09:19:08,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 961 places, 972 transitions, 2439 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:19:08,613 INFO L231 Difference]: Finished difference. Result has 961 places, 966 transitions, 1949 flow [2025-02-06 09:19:08,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1949, PETRI_PLACES=961, PETRI_TRANSITIONS=966} [2025-02-06 09:19:08,621 INFO L279 CegarLoopForPetriNet]: 985 programPoint places, -24 predicate places. [2025-02-06 09:19:08,622 INFO L471 AbstractCegarLoop]: Abstraction has has 961 places, 966 transitions, 1949 flow [2025-02-06 09:19:08,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:08,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:08,626 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] [2025-02-06 09:19:08,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:19:08,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:19:08,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1177789215, now seen corresponding path program 1 times [2025-02-06 09:19:08,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:08,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338371282] [2025-02-06 09:19:08,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:08,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:08,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 09:19:08,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 09:19:08,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:08,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:19:08,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:08,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338371282] [2025-02-06 09:19:08,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338371282] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:08,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:08,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:19:08,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841633607] [2025-02-06 09:19:08,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:08,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:19:08,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:08,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:19:08,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:19:08,734 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 973 out of 1061 [2025-02-06 09:19:08,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 966 transitions, 1949 flow. Second operand has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:08,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:08,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 973 of 1061 [2025-02-06 09:19:08,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:09,465 INFO L124 PetriNetUnfolderBase]: 247/4872 cut-off events. [2025-02-06 09:19:09,465 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:19:09,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5195 conditions, 4872 events. 247/4872 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 37067 event pairs, 110 based on Foata normal form. 1/4211 useless extension candidates. Maximal degree in co-relation 5106. Up to 306 conditions per place. [2025-02-06 09:19:09,500 INFO L140 encePairwiseOnDemand]: 1058/1061 looper letters, 27 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2025-02-06 09:19:09,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 967 transitions, 2009 flow [2025-02-06 09:19:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:19:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:19:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2949 transitions. [2025-02-06 09:19:09,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9264844486333648 [2025-02-06 09:19:09,505 INFO L175 Difference]: Start difference. First operand has 961 places, 966 transitions, 1949 flow. Second operand 3 states and 2949 transitions. [2025-02-06 09:19:09,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 967 transitions, 2009 flow [2025-02-06 09:19:09,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 967 transitions, 1999 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:09,519 INFO L231 Difference]: Finished difference. Result has 953 places, 967 transitions, 1951 flow [2025-02-06 09:19:09,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=953, PETRI_TRANSITIONS=967} [2025-02-06 09:19:09,521 INFO L279 CegarLoopForPetriNet]: 985 programPoint places, -32 predicate places. [2025-02-06 09:19:09,521 INFO L471 AbstractCegarLoop]: Abstraction has has 953 places, 967 transitions, 1951 flow [2025-02-06 09:19:09,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:09,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:09,522 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] [2025-02-06 09:19:09,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:19:09,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:19:09,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash 322254445, now seen corresponding path program 1 times [2025-02-06 09:19:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:09,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974560185] [2025-02-06 09:19:09,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:09,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:09,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 09:19:09,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 09:19:09,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:09,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:19:09,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:09,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974560185] [2025-02-06 09:19:09,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974560185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:09,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:09,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:09,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850912529] [2025-02-06 09:19:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:09,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:09,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:09,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:09,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:10,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-06 09:19:10,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 967 transitions, 1951 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:10,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:10,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-06 09:19:10,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:19,221 INFO L124 PetriNetUnfolderBase]: 12711/59996 cut-off events. [2025-02-06 09:19:19,222 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-06 09:19:19,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83420 conditions, 59996 events. 12711/59996 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 700755 event pairs, 11413 based on Foata normal form. 0/52830 useless extension candidates. Maximal degree in co-relation 83336. Up to 23402 conditions per place. [2025-02-06 09:19:19,436 INFO L140 encePairwiseOnDemand]: 1055/1061 looper letters, 240 selfloop transitions, 5 changer transitions 0/966 dead transitions. [2025-02-06 09:19:19,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 966 transitions, 2439 flow [2025-02-06 09:19:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4781 transitions. [2025-02-06 09:19:19,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510210493245366 [2025-02-06 09:19:19,447 INFO L175 Difference]: Start difference. First operand has 953 places, 967 transitions, 1951 flow. Second operand 6 states and 4781 transitions. [2025-02-06 09:19:19,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 966 transitions, 2439 flow [2025-02-06 09:19:19,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 966 transitions, 2437 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:19:19,460 INFO L231 Difference]: Finished difference. Result has 956 places, 966 transitions, 1957 flow [2025-02-06 09:19:19,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=951, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1957, PETRI_PLACES=956, PETRI_TRANSITIONS=966} [2025-02-06 09:19:19,462 INFO L279 CegarLoopForPetriNet]: 985 programPoint places, -29 predicate places. [2025-02-06 09:19:19,462 INFO L471 AbstractCegarLoop]: Abstraction has has 956 places, 966 transitions, 1957 flow [2025-02-06 09:19:19,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:19,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:19,464 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] [2025-02-06 09:19:19,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:19:19,464 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:19:19,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1551610235, now seen corresponding path program 1 times [2025-02-06 09:19:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:19,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212884965] [2025-02-06 09:19:19,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:19,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:19,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-06 09:19:19,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 09:19:19,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:19,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:19,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:19,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:19,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212884965] [2025-02-06 09:19:19,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212884965] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:19,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:19,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793793996] [2025-02-06 09:19:19,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:19,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:19,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:19,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:19,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:20,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-06 09:19:20,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 966 transitions, 1957 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:20,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:20,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-06 09:19:20,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:29,452 INFO L124 PetriNetUnfolderBase]: 12711/59994 cut-off events. [2025-02-06 09:19:29,452 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-02-06 09:19:29,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83427 conditions, 59994 events. 12711/59994 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 700642 event pairs, 11413 based on Foata normal form. 0/52830 useless extension candidates. Maximal degree in co-relation 83329. Up to 23402 conditions per place. [2025-02-06 09:19:29,693 INFO L140 encePairwiseOnDemand]: 1055/1061 looper letters, 240 selfloop transitions, 5 changer transitions 0/965 dead transitions. [2025-02-06 09:19:29,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 965 transitions, 2445 flow [2025-02-06 09:19:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4781 transitions. [2025-02-06 09:19:29,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510210493245366 [2025-02-06 09:19:29,704 INFO L175 Difference]: Start difference. First operand has 956 places, 966 transitions, 1957 flow. Second operand 6 states and 4781 transitions. [2025-02-06 09:19:29,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 965 transitions, 2445 flow [2025-02-06 09:19:29,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 965 transitions, 2435 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:29,716 INFO L231 Difference]: Finished difference. Result has 955 places, 965 transitions, 1955 flow [2025-02-06 09:19:29,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1955, PETRI_PLACES=955, PETRI_TRANSITIONS=965} [2025-02-06 09:19:29,718 INFO L279 CegarLoopForPetriNet]: 985 programPoint places, -30 predicate places. [2025-02-06 09:19:29,718 INFO L471 AbstractCegarLoop]: Abstraction has has 955 places, 965 transitions, 1955 flow [2025-02-06 09:19:29,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:29,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:29,721 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] [2025-02-06 09:19:29,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:19:29,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:19:29,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -930488164, now seen corresponding path program 1 times [2025-02-06 09:19:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376414672] [2025-02-06 09:19:29,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:29,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:19:29,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:19:29,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:29,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:29,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376414672] [2025-02-06 09:19:29,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376414672] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:19:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94705501] [2025-02-06 09:19:29,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:29,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:29,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:19:29,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:19:29,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:19:29,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:19:29,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:19:29,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:29,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:29,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:19:29,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:19:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:30,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:19:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:19:30,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94705501] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:19:30,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:19:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-02-06 09:19:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86635664] [2025-02-06 09:19:30,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:19:30,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:30,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:30,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:30,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 972 out of 1061 [2025-02-06 09:19:30,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 965 transitions, 1955 flow. Second operand has 6 states, 6 states have (on average 974.1666666666666) internal successors, (5845), 6 states have internal predecessors, (5845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:30,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:30,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 972 of 1061 [2025-02-06 09:19:30,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:31,094 INFO L124 PetriNetUnfolderBase]: 247/4898 cut-off events. [2025-02-06 09:19:31,094 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 09:19:31,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 4898 events. 247/4898 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 36883 event pairs, 110 based on Foata normal form. 2/4242 useless extension candidates. Maximal degree in co-relation 5089. Up to 305 conditions per place. [2025-02-06 09:19:31,143 INFO L140 encePairwiseOnDemand]: 1057/1061 looper letters, 29 selfloop transitions, 5 changer transitions 0/969 dead transitions. [2025-02-06 09:19:31,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 969 transitions, 2033 flow [2025-02-06 09:19:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:19:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 09:19:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4896 transitions. [2025-02-06 09:19:31,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9229029217719132 [2025-02-06 09:19:31,151 INFO L175 Difference]: Start difference. First operand has 955 places, 965 transitions, 1955 flow. Second operand 5 states and 4896 transitions. [2025-02-06 09:19:31,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 969 transitions, 2033 flow [2025-02-06 09:19:31,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 969 transitions, 2023 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:31,164 INFO L231 Difference]: Finished difference. Result has 957 places, 967 transitions, 1975 flow [2025-02-06 09:19:31,165 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1975, PETRI_PLACES=957, PETRI_TRANSITIONS=967} [2025-02-06 09:19:31,165 INFO L279 CegarLoopForPetriNet]: 985 programPoint places, -28 predicate places. [2025-02-06 09:19:31,165 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 967 transitions, 1975 flow [2025-02-06 09:19:31,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 974.1666666666666) internal successors, (5845), 6 states have internal predecessors, (5845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:31,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:31,168 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 09:19:31,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:19:31,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:31,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-06 09:19:31,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1796789014, now seen corresponding path program 2 times [2025-02-06 09:19:31,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:31,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719348833] [2025-02-06 09:19:31,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:19:31,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:31,402 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-02-06 09:19:31,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-02-06 09:19:31,407 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:19:31,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-06 09:19:31,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:31,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719348833] [2025-02-06 09:19:31,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719348833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:31,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:31,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831781353] [2025-02-06 09:19:31,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:31,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:31,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:31,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:32,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 1061 [2025-02-06 09:19:32,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 967 transitions, 1975 flow. Second operand has 6 states, 6 states have (on average 756.3333333333334) internal successors, (4538), 6 states have internal predecessors, (4538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:19:32,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:32,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 1061 [2025-02-06 09:19:32,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand