./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-lit/fk2012.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 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-lit/fk2012.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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:16:39,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:16:39,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:16:39,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:16:39,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:16:39,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:16:39,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:16:39,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:16:39,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:16:39,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:16:39,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:16:39,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:16:39,111 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:16:39,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:16:39,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:16:39,111 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:16:39,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:16:39,112 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:16:39,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:16:39,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:16:39,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:16:39,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:16:39,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:16:39,114 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 -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2025-01-09 21:16:39,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:16:39,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:16:39,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:16:39,372 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:16:39,373 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:16:39,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fk2012.i [2025-01-09 21:16:40,565 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0fa12bad/48eddf1791b148309273d1bf35027e23/FLAG1e2130a28 [2025-01-09 21:16:40,917 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:16:40,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-lit/fk2012.i [2025-01-09 21:16:40,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0fa12bad/48eddf1791b148309273d1bf35027e23/FLAG1e2130a28 [2025-01-09 21:16:40,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0fa12bad/48eddf1791b148309273d1bf35027e23 [2025-01-09 21:16:40,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:16:40,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:16:40,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:16:40,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:16:40,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:16:40,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:16:40" (1/1) ... [2025-01-09 21:16:40,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b90895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:40, skipping insertion in model container [2025-01-09 21:16:40,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:16:40" (1/1) ... [2025-01-09 21:16:40,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:16:41,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:16:41,294 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:16:41,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:16:41,418 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:16:41,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41 WrapperNode [2025-01-09 21:16:41,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:16:41,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:16:41,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:16:41,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:16:41,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,480 INFO L138 Inliner]: procedures = 276, calls = 31, calls flagged for inlining = 17, calls inlined = 22, statements flattened = 244 [2025-01-09 21:16:41,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:16:41,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:16:41,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:16:41,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:16:41,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:16:41,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:16:41,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:16:41,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:16:41,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (1/1) ... [2025-01-09 21:16:41,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:16:41,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:16:41,531 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) [2025-01-09 21:16:41,534 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 [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2025-01-09 21:16:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2025-01-09 21:16:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:16:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:16:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:16:41,553 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:16:41,665 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:16:41,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:16:41,918 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:16:41,921 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:16:42,019 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:16:42,020 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 21:16:42,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:16:42 BoogieIcfgContainer [2025-01-09 21:16:42,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:16:42,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:16:42,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:16:42,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:16:42,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:16:40" (1/3) ... [2025-01-09 21:16:42,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c6e5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:16:42, skipping insertion in model container [2025-01-09 21:16:42,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:16:41" (2/3) ... [2025-01-09 21:16:42,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c6e5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:16:42, skipping insertion in model container [2025-01-09 21:16:42,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:16:42" (3/3) ... [2025-01-09 21:16:42,051 INFO L128 eAbstractionObserver]: Analyzing ICFG fk2012.i [2025-01-09 21:16:42,061 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:16:42,062 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fk2012.i that has 3 procedures, 180 locations, 1 initial locations, 3 loop locations, and 32 error locations. [2025-01-09 21:16:42,063 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:16:42,142 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:16:42,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 187 transitions, 382 flow [2025-01-09 21:16:42,340 INFO L124 PetriNetUnfolderBase]: 13/377 cut-off events. [2025-01-09 21:16:42,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:16:42,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 377 events. 13/377 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1601 event pairs, 1 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2025-01-09 21:16:42,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 187 transitions, 382 flow [2025-01-09 21:16:42,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 187 transitions, 382 flow [2025-01-09 21:16:42,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:16:42,397 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;@247c4e95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:16:42,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-01-09 21:16:42,405 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:16:42,405 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-01-09 21:16:42,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:16:42,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:42,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:16:42,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:16:42,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:42,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1389006639, now seen corresponding path program 1 times [2025-01-09 21:16:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:42,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219361236] [2025-01-09 21:16:42,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:42,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:42,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 21:16:42,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 21:16:42,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:42,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:16:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:16:42,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:16:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219361236] [2025-01-09 21:16:42,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219361236] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:16:42,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:16:42,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:16:42,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183300403] [2025-01-09 21:16:42,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:16:42,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:16:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:16:42,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:16:42,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:16:42,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 187 [2025-01-09 21:16:42,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 187 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2025-01-09 21:16:42,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:16:42,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 187 [2025-01-09 21:16:42,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:16:42,900 INFO L124 PetriNetUnfolderBase]: 239/1568 cut-off events. [2025-01-09 21:16:42,901 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2025-01-09 21:16:42,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2087 conditions, 1568 events. 239/1568 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12924 event pairs, 203 based on Foata normal form. 235/1596 useless extension candidates. Maximal degree in co-relation 1030. Up to 466 conditions per place. [2025-01-09 21:16:42,914 INFO L140 encePairwiseOnDemand]: 162/187 looper letters, 25 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2025-01-09 21:16:42,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 378 flow [2025-01-09 21:16:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:16:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:16:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2025-01-09 21:16:42,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8110516934046346 [2025-01-09 21:16:42,925 INFO L175 Difference]: Start difference. First operand has 186 places, 187 transitions, 382 flow. Second operand 3 states and 455 transitions. [2025-01-09 21:16:42,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 378 flow [2025-01-09 21:16:42,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 158 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:16:42,934 INFO L231 Difference]: Finished difference. Result has 162 places, 158 transitions, 328 flow [2025-01-09 21:16:42,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=162, PETRI_TRANSITIONS=158} [2025-01-09 21:16:42,938 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, -24 predicate places. [2025-01-09 21:16:42,939 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 158 transitions, 328 flow [2025-01-09 21:16:42,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2025-01-09 21:16:42,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:42,939 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] [2025-01-09 21:16:42,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:16:42,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:16:42,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:42,940 INFO L85 PathProgramCache]: Analyzing trace with hash -172383938, now seen corresponding path program 1 times [2025-01-09 21:16:42,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:42,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053807] [2025-01-09 21:16:42,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:42,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:16:42,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:16:42,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:42,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:16:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:16:42,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:16:42,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053807] [2025-01-09 21:16:42,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053807] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:16:42,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:16:42,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:16:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145860949] [2025-01-09 21:16:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:16:42,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:16:42,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:16:42,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:16:42,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:16:42,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 187 [2025-01-09 21:16:42,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 158 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2025-01-09 21:16:42,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:16:42,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 187 [2025-01-09 21:16:42,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:16:43,101 INFO L124 PetriNetUnfolderBase]: 67/882 cut-off events. [2025-01-09 21:16:43,101 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-01-09 21:16:43,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 882 events. 67/882 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5884 event pairs, 46 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 1014. Up to 123 conditions per place. [2025-01-09 21:16:43,108 INFO L140 encePairwiseOnDemand]: 184/187 looper letters, 14 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2025-01-09 21:16:43,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 157 transitions, 358 flow [2025-01-09 21:16:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:16:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:16:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2025-01-09 21:16:43,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8110516934046346 [2025-01-09 21:16:43,110 INFO L175 Difference]: Start difference. First operand has 162 places, 158 transitions, 328 flow. Second operand 3 states and 455 transitions. [2025-01-09 21:16:43,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 157 transitions, 358 flow [2025-01-09 21:16:43,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 157 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:16:43,113 INFO L231 Difference]: Finished difference. Result has 161 places, 157 transitions, 326 flow [2025-01-09 21:16:43,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=161, PETRI_TRANSITIONS=157} [2025-01-09 21:16:43,114 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, -25 predicate places. [2025-01-09 21:16:43,114 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 157 transitions, 326 flow [2025-01-09 21:16:43,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2025-01-09 21:16:43,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:43,114 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] [2025-01-09 21:16:43,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:16:43,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:16:43,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash -52360742, now seen corresponding path program 1 times [2025-01-09 21:16:43,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:43,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196901589] [2025-01-09 21:16:43,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:43,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:16:43,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:16:43,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:43,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:16:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:16:43,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:16:43,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196901589] [2025-01-09 21:16:43,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196901589] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:16:43,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:16:43,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:16:43,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509048669] [2025-01-09 21:16:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:16:43,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:16:43,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:16:43,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:16:43,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:16:43,192 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 187 [2025-01-09 21:16:43,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 157 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2025-01-09 21:16:43,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:16:43,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 187 [2025-01-09 21:16:43,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:16:43,305 INFO L124 PetriNetUnfolderBase]: 67/881 cut-off events. [2025-01-09 21:16:43,305 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-01-09 21:16:43,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 881 events. 67/881 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5871 event pairs, 46 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 1008. Up to 123 conditions per place. [2025-01-09 21:16:43,312 INFO L140 encePairwiseOnDemand]: 184/187 looper letters, 14 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2025-01-09 21:16:43,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 156 transitions, 356 flow [2025-01-09 21:16:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:16:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:16:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2025-01-09 21:16:43,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8110516934046346 [2025-01-09 21:16:43,315 INFO L175 Difference]: Start difference. First operand has 161 places, 157 transitions, 326 flow. Second operand 3 states and 455 transitions. [2025-01-09 21:16:43,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 156 transitions, 356 flow [2025-01-09 21:16:43,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 156 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:16:43,319 INFO L231 Difference]: Finished difference. Result has 160 places, 156 transitions, 324 flow [2025-01-09 21:16:43,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=160, PETRI_TRANSITIONS=156} [2025-01-09 21:16:43,320 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, -26 predicate places. [2025-01-09 21:16:43,320 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 156 transitions, 324 flow [2025-01-09 21:16:43,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2025-01-09 21:16:43,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:43,321 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] [2025-01-09 21:16:43,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:16:43,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting consumerErr2ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:16:43,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:43,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1303906933, now seen corresponding path program 1 times [2025-01-09 21:16:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:43,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149617614] [2025-01-09 21:16:43,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:43,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 21:16:43,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 21:16:43,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:43,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:16:43,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:16:43,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:16:43,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149617614] [2025-01-09 21:16:43,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149617614] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:16:43,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:16:43,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:16:43,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554377172] [2025-01-09 21:16:43,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:16:43,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:16:43,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:16:43,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:16:43,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:16:43,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 187 [2025-01-09 21:16:43,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2025-01-09 21:16:43,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:16:43,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 187 [2025-01-09 21:16:43,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:16:43,806 INFO L124 PetriNetUnfolderBase]: 543/2910 cut-off events. [2025-01-09 21:16:43,806 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2025-01-09 21:16:43,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4137 conditions, 2910 events. 543/2910 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 27443 event pairs, 184 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 4102. Up to 853 conditions per place. [2025-01-09 21:16:43,821 INFO L140 encePairwiseOnDemand]: 162/187 looper letters, 48 selfloop transitions, 18 changer transitions 0/185 dead transitions. [2025-01-09 21:16:43,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 185 transitions, 520 flow [2025-01-09 21:16:43,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:16:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:16:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2025-01-09 21:16:43,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8092691622103387 [2025-01-09 21:16:43,823 INFO L175 Difference]: Start difference. First operand has 160 places, 156 transitions, 324 flow. Second operand 3 states and 454 transitions. [2025-01-09 21:16:43,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 185 transitions, 520 flow [2025-01-09 21:16:43,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 185 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:16:43,826 INFO L231 Difference]: Finished difference. Result has 162 places, 174 transitions, 478 flow [2025-01-09 21:16:43,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=162, PETRI_TRANSITIONS=174} [2025-01-09 21:16:43,827 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, -24 predicate places. [2025-01-09 21:16:43,827 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 174 transitions, 478 flow [2025-01-09 21:16:43,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2025-01-09 21:16:43,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:43,828 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-01-09 21:16:43,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:16:43,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:16:43,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash -381083559, now seen corresponding path program 1 times [2025-01-09 21:16:43,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:43,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685412826] [2025-01-09 21:16:43,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:43,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:43,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-09 21:16:43,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-09 21:16:43,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:43,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:16:43,839 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:16:43,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-09 21:16:43,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-09 21:16:43,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:43,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:16:43,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:16:43,856 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:16:43,857 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2025-01-09 21:16:43,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2025-01-09 21:16:43,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2025-01-09 21:16:43,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2025-01-09 21:16:43,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2025-01-09 21:16:43,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2025-01-09 21:16:43,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2025-01-09 21:16:43,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2025-01-09 21:16:43,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:16:43,862 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 21:16:43,864 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:16:43,864 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:16:43,895 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:16:43,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 320 transitions, 660 flow [2025-01-09 21:16:44,000 INFO L124 PetriNetUnfolderBase]: 40/1012 cut-off events. [2025-01-09 21:16:44,000 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-01-09 21:16:44,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 1012 events. 40/1012 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6767 event pairs, 4 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 645. Up to 13 conditions per place. [2025-01-09 21:16:44,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 320 transitions, 660 flow [2025-01-09 21:16:44,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 320 transitions, 660 flow [2025-01-09 21:16:44,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:16:44,029 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;@247c4e95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:16:44,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2025-01-09 21:16:44,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:16:44,032 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-01-09 21:16:44,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:16:44,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:16:44,033 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:16:44,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2025-01-09 21:16:44,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:16:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash 161394897, now seen corresponding path program 1 times [2025-01-09 21:16:44,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:16:44,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193443454] [2025-01-09 21:16:44,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:16:44,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:16:44,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 21:16:44,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 21:16:44,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:16:44,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:16:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:16:44,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:16:44,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193443454] [2025-01-09 21:16:44,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193443454] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:16:44,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:16:44,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:16:44,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180581059] [2025-01-09 21:16:44,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:16:44,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:16:44,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:16:44,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:16:44,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:16:44,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 320 [2025-01-09 21:16:44,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 320 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2025-01-09 21:16:44,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:16:44,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 320 [2025-01-09 21:16:44,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:17:07,671 INFO L124 PetriNetUnfolderBase]: 85296/238142 cut-off events. [2025-01-09 21:17:07,671 INFO L125 PetriNetUnfolderBase]: For 8420/8420 co-relation queries the response was YES. [2025-01-09 21:17:09,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359867 conditions, 238142 events. 85296/238142 cut-off events. For 8420/8420 co-relation queries the response was YES. Maximal size of possible extension queue 6326. Compared 3715261 event pairs, 77240 based on Foata normal form. 41950/255706 useless extension candidates. Maximal degree in co-relation 165888. Up to 113020 conditions per place. [2025-01-09 21:17:11,332 INFO L140 encePairwiseOnDemand]: 274/320 looper letters, 47 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2025-01-09 21:17:11,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 268 transitions, 654 flow [2025-01-09 21:17:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:17:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:17:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2025-01-09 21:17:11,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.796875 [2025-01-09 21:17:11,335 INFO L175 Difference]: Start difference. First operand has 317 places, 320 transitions, 660 flow. Second operand 3 states and 765 transitions. [2025-01-09 21:17:11,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 268 transitions, 654 flow [2025-01-09 21:17:11,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 654 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:17:11,342 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 560 flow [2025-01-09 21:17:11,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2025-01-09 21:17:11,343 INFO L279 CegarLoopForPetriNet]: 317 programPoint places, -44 predicate places. [2025-01-09 21:17:11,343 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 560 flow [2025-01-09 21:17:11,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2025-01-09 21:17:11,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:17:11,344 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] [2025-01-09 21:17:11,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:17:11,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2025-01-09 21:17:11,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:17:11,344 INFO L85 PathProgramCache]: Analyzing trace with hash 994841214, now seen corresponding path program 1 times [2025-01-09 21:17:11,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:17:11,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057969682] [2025-01-09 21:17:11,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:17:11,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:17:11,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 21:17:11,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 21:17:11,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:17:11,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:17:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:17:11,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:17:11,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057969682] [2025-01-09 21:17:11,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057969682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:17:11,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:17:11,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:17:11,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8638867] [2025-01-09 21:17:11,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:17:11,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:17:11,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:17:11,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:17:11,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:17:11,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 320 [2025-01-09 21:17:11,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2025-01-09 21:17:11,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:17:11,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 320 [2025-01-09 21:17:11,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:17:14,057 INFO L124 PetriNetUnfolderBase]: 6118/31799 cut-off events. [2025-01-09 21:17:14,057 INFO L125 PetriNetUnfolderBase]: For 1209/1209 co-relation queries the response was YES. [2025-01-09 21:17:14,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41020 conditions, 31799 events. 6118/31799 cut-off events. For 1209/1209 co-relation queries the response was YES. Maximal size of possible extension queue 948. Compared 453729 event pairs, 4882 based on Foata normal form. 0/27397 useless extension candidates. Maximal degree in co-relation 40993. Up to 7930 conditions per place. [2025-01-09 21:17:14,645 INFO L140 encePairwiseOnDemand]: 317/320 looper letters, 25 selfloop transitions, 2 changer transitions 0/267 dead transitions. [2025-01-09 21:17:14,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 267 transitions, 612 flow [2025-01-09 21:17:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:17:14,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:17:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2025-01-09 21:17:14,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7979166666666667 [2025-01-09 21:17:14,648 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 560 flow. Second operand 3 states and 766 transitions. [2025-01-09 21:17:14,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 267 transitions, 612 flow [2025-01-09 21:17:14,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 267 transitions, 608 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:17:14,652 INFO L231 Difference]: Finished difference. Result has 272 places, 267 transitions, 558 flow [2025-01-09 21:17:14,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=272, PETRI_TRANSITIONS=267} [2025-01-09 21:17:14,653 INFO L279 CegarLoopForPetriNet]: 317 programPoint places, -45 predicate places. [2025-01-09 21:17:14,653 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 267 transitions, 558 flow [2025-01-09 21:17:14,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2025-01-09 21:17:14,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:17:14,653 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] [2025-01-09 21:17:14,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:17:14,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2025-01-09 21:17:14,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:17:14,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1248390694, now seen corresponding path program 1 times [2025-01-09 21:17:14,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:17:14,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924561213] [2025-01-09 21:17:14,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:17:14,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:17:14,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 21:17:14,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 21:17:14,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:17:14,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:17:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:17:14,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:17:14,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924561213] [2025-01-09 21:17:14,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924561213] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:17:14,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:17:14,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:17:14,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117095658] [2025-01-09 21:17:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:17:14,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:17:14,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:17:14,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:17:14,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:17:14,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 320 [2025-01-09 21:17:14,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 267 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2025-01-09 21:17:14,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:17:14,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 320 [2025-01-09 21:17:14,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:17:17,958 INFO L124 PetriNetUnfolderBase]: 6118/31798 cut-off events. [2025-01-09 21:17:17,958 INFO L125 PetriNetUnfolderBase]: For 1209/1209 co-relation queries the response was YES. [2025-01-09 21:17:18,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41019 conditions, 31798 events. 6118/31798 cut-off events. For 1209/1209 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 454075 event pairs, 4882 based on Foata normal form. 0/27396 useless extension candidates. Maximal degree in co-relation 40987. Up to 7930 conditions per place. [2025-01-09 21:17:18,623 INFO L140 encePairwiseOnDemand]: 317/320 looper letters, 25 selfloop transitions, 2 changer transitions 0/266 dead transitions. [2025-01-09 21:17:18,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 266 transitions, 610 flow [2025-01-09 21:17:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:17:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:17:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2025-01-09 21:17:18,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7979166666666667 [2025-01-09 21:17:18,630 INFO L175 Difference]: Start difference. First operand has 272 places, 267 transitions, 558 flow. Second operand 3 states and 766 transitions. [2025-01-09 21:17:18,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 266 transitions, 610 flow [2025-01-09 21:17:18,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 266 transitions, 606 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:17:18,638 INFO L231 Difference]: Finished difference. Result has 271 places, 266 transitions, 556 flow [2025-01-09 21:17:18,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=271, PETRI_TRANSITIONS=266} [2025-01-09 21:17:18,639 INFO L279 CegarLoopForPetriNet]: 317 programPoint places, -46 predicate places. [2025-01-09 21:17:18,639 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 266 transitions, 556 flow [2025-01-09 21:17:18,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2025-01-09 21:17:18,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:17:18,644 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] [2025-01-09 21:17:18,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:17:18,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting consumerErr2ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2025-01-09 21:17:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:17:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1283700455, now seen corresponding path program 1 times [2025-01-09 21:17:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:17:18,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434210390] [2025-01-09 21:17:18,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:17:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:17:18,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 21:17:18,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 21:17:18,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:17:18,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:17:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:17:18,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:17:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434210390] [2025-01-09 21:17:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434210390] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:17:18,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:17:18,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:17:18,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697382618] [2025-01-09 21:17:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:17:18,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:17:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:17:18,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:17:18,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:17:18,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 320 [2025-01-09 21:17:18,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 266 transitions, 556 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2025-01-09 21:17:18,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:17:18,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 320 [2025-01-09 21:17:18,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand