./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:16:02,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:16:02,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:16:02,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:16:02,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:16:02,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:16:02,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:16:02,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:16:02,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:16:02,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:16:02,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:16:02,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:16:02,575 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:16:02,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:16:02,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:16:02,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:16:02,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:16:02,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:16:02,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:16:02,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:16:02,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:16:02,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:16:02,581 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:16:02,585 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:16:02,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:16:02,586 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:16:02,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:16:02,586 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:16:02,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:16:02,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:16:02,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:16:02,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:16:02,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:16:02,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:16:02,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:16:02,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:16:02,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a [2024-10-11 17:16:02,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:16:02,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:16:02,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:16:02,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:16:02,867 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:16:02,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-10-11 17:16:04,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:16:04,537 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:16:04,537 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-10-11 17:16:04,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3dfd4bab2/790eea70f90546dc85d3e0d3f95d861c/FLAG72e968ceb [2024-10-11 17:16:04,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3dfd4bab2/790eea70f90546dc85d3e0d3f95d861c [2024-10-11 17:16:04,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:16:04,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:16:04,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:16:04,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:16:04,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:16:04,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6b8e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04, skipping insertion in model container [2024-10-11 17:16:04,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:16:04,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:16:04,803 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:16:04,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:16:04,870 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:16:04,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04 WrapperNode [2024-10-11 17:16:04,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:16:04,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:16:04,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:16:04,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:16:04,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,952 INFO L138 Inliner]: procedures = 24, calls = 71, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 526 [2024-10-11 17:16:04,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:16:04,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:16:04,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:16:04,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:16:04,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:04,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:05,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:16:05,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:16:05,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:16:05,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:16:05,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (1/1) ... [2024-10-11 17:16:05,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:16:05,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:16:05,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:16:05,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 17:16:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 17:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 17:16:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 17:16:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 17:16:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 17:16:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-11 17:16:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-11 17:16:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:16:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-11 17:16:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-11 17:16:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-11 17:16:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-11 17:16:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 17:16:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 17:16:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:16:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:16:05,093 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:16:05,248 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:16:05,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:16:05,844 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:16:05,844 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:16:06,156 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:16:06,156 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:16:06,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:16:06 BoogieIcfgContainer [2024-10-11 17:16:06,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:16:06,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:16:06,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:16:06,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:16:06,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:16:04" (1/3) ... [2024-10-11 17:16:06,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda3d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:16:06, skipping insertion in model container [2024-10-11 17:16:06,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:16:04" (2/3) ... [2024-10-11 17:16:06,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda3d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:16:06, skipping insertion in model container [2024-10-11 17:16:06,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:16:06" (3/3) ... [2024-10-11 17:16:06,187 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2024-10-11 17:16:06,204 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:16:06,205 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 82 error locations. [2024-10-11 17:16:06,205 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:16:06,310 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-10-11 17:16:06,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 330 transitions, 702 flow [2024-10-11 17:16:06,468 INFO L124 PetriNetUnfolderBase]: 5/324 cut-off events. [2024-10-11 17:16:06,468 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 17:16:06,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 324 events. 5/324 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 403 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 288. Up to 2 conditions per place. [2024-10-11 17:16:06,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 344 places, 330 transitions, 702 flow [2024-10-11 17:16:06,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 322 places, 307 transitions, 650 flow [2024-10-11 17:16:06,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:16:06,507 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;@16d8ed28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:16:06,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 153 error locations. [2024-10-11 17:16:06,516 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:16:06,517 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-10-11 17:16:06,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:16:06,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:16:06,518 INFO L204 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] [2024-10-11 17:16:06,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 149 more)] === [2024-10-11 17:16:06,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:16:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2121700718, now seen corresponding path program 1 times [2024-10-11 17:16:06,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:16:06,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365312015] [2024-10-11 17:16:06,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:16:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:16:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:16:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:16:06,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:16:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365312015] [2024-10-11 17:16:06,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365312015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:16:06,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:16:06,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:16:06,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249121212] [2024-10-11 17:16:06,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:16:06,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:16:06,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:16:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:16:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:16:06,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 330 [2024-10-11 17:16:06,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 307 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 17:16:06,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:16:06,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 330 [2024-10-11 17:16:06,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:16:28,954 INFO L124 PetriNetUnfolderBase]: 104692/148610 cut-off events. [2024-10-11 17:16:28,955 INFO L125 PetriNetUnfolderBase]: For 16405/16405 co-relation queries the response was YES. [2024-10-11 17:16:29,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293934 conditions, 148610 events. 104692/148610 cut-off events. For 16405/16405 co-relation queries the response was YES. Maximal size of possible extension queue 5267. Compared 1169286 event pairs, 104689 based on Foata normal form. 1/148470 useless extension candidates. Maximal degree in co-relation 292233. Up to 132035 conditions per place. [2024-10-11 17:16:30,468 INFO L140 encePairwiseOnDemand]: 261/330 looper letters, 40 selfloop transitions, 2 changer transitions 1/240 dead transitions. [2024-10-11 17:16:30,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 240 transitions, 600 flow [2024-10-11 17:16:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:16:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:16:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 763 transitions. [2024-10-11 17:16:30,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7707070707070707 [2024-10-11 17:16:30,495 INFO L175 Difference]: Start difference. First operand has 322 places, 307 transitions, 650 flow. Second operand 3 states and 763 transitions. [2024-10-11 17:16:30,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 240 transitions, 600 flow [2024-10-11 17:16:30,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 240 transitions, 576 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-11 17:16:30,550 INFO L231 Difference]: Finished difference. Result has 246 places, 239 transitions, 494 flow [2024-10-11 17:16:30,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=246, PETRI_TRANSITIONS=239} [2024-10-11 17:16:30,558 INFO L277 CegarLoopForPetriNet]: 322 programPoint places, -76 predicate places. [2024-10-11 17:16:30,558 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 239 transitions, 494 flow [2024-10-11 17:16:30,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 17:16:30,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:16:30,560 INFO L204 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] [2024-10-11 17:16:30,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:16:30,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 149 more)] === [2024-10-11 17:16:30,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:16:30,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1897180274, now seen corresponding path program 1 times [2024-10-11 17:16:30,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:16:30,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574112974] [2024-10-11 17:16:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:16:30,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:16:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:16:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:16:30,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:16:30,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574112974] [2024-10-11 17:16:30,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574112974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:16:30,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:16:30,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:16:30,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734068434] [2024-10-11 17:16:30,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:16:30,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:16:30,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:16:30,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:16:30,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:16:30,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 330 [2024-10-11 17:16:30,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 239 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 17:16:30,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:16:30,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 330 [2024-10-11 17:16:30,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand