./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:01:12,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:12,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:01:12,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:12,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:13,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:13,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:13,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:13,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:13,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:13,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:01:13,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:01:13,023 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:01:13,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:13,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:13,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:13,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:01:13,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:13,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:13,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:13,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:13,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:13,030 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:01:13,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:13,031 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:01:13,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:13,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:13,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:13,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:13,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:01:13,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:13,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:01:13,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:13,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:13,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:13,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:01:13,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:01:13,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:13,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:01:13,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:01:13,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:01:13,039 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da [2024-11-09 07:01:13,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:13,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:13,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:13,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:13,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:13,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2024-11-09 07:01:14,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:15,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:15,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2024-11-09 07:01:15,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e582f394/c928bb3def3547d7a6ed2c284296811b/FLAG4c6c871b1 [2024-11-09 07:01:15,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e582f394/c928bb3def3547d7a6ed2c284296811b [2024-11-09 07:01:15,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:15,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:15,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:15,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:15,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:15,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9fbefbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15, skipping insertion in model container [2024-11-09 07:01:15,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:15,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:15,678 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:01:15,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:15,723 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:01:15,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15 WrapperNode [2024-11-09 07:01:15,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:15,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:15,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:01:15,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:01:15,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,775 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 340 [2024-11-09 07:01:15,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:15,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:01:15,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:01:15,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:01:15,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:01:15,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:01:15,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:01:15,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:01:15,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (1/1) ... [2024-11-09 07:01:15,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:01:15,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:01:15,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:01:15,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:01:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:01:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 07:01:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 07:01:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 07:01:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 07:01:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 07:01:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 07:01:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 07:01:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 07:01:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:01:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-09 07:01:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-09 07:01:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-09 07:01:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-09 07:01:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-11-09 07:01:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-11-09 07:01:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:01:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:01:15,947 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:01:16,090 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:01:16,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:16,587 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:01:16,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:16,638 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:16,639 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:01:16,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:16 BoogieIcfgContainer [2024-11-09 07:01:16,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:16,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:16,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:16,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:16,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:01:15" (1/3) ... [2024-11-09 07:01:16,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa6e22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:16, skipping insertion in model container [2024-11-09 07:01:16,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:15" (2/3) ... [2024-11-09 07:01:16,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa6e22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:16, skipping insertion in model container [2024-11-09 07:01:16,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:16" (3/3) ... [2024-11-09 07:01:16,655 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2024-11-09 07:01:16,674 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:16,674 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-11-09 07:01:16,674 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:01:16,823 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-11-09 07:01:16,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 380 places, 373 transitions, 795 flow [2024-11-09 07:01:17,030 INFO L124 PetriNetUnfolderBase]: 15/366 cut-off events. [2024-11-09 07:01:17,030 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:01:17,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 366 events. 15/366 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 710 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 325. Up to 2 conditions per place. [2024-11-09 07:01:17,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 380 places, 373 transitions, 795 flow [2024-11-09 07:01:17,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 349 transitions, 737 flow [2024-11-09 07:01:17,062 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:17,070 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;@3474b329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:17,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 07:01:17,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:01:17,081 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-09 07:01:17,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:01:17,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:17,083 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] [2024-11-09 07:01:17,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:01:17,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:17,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1036954301, now seen corresponding path program 1 times [2024-11-09 07:01:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:17,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916858692] [2024-11-09 07:01:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916858692] [2024-11-09 07:01:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916858692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:17,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887737425] [2024-11-09 07:01:17,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:17,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:17,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:17,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:17,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 373 [2024-11-09 07:01:17,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 349 transitions, 737 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-11-09 07:01:17,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:17,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 373 [2024-11-09 07:01:17,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:38,835 INFO L124 PetriNetUnfolderBase]: 28016/106122 cut-off events. [2024-11-09 07:01:38,836 INFO L125 PetriNetUnfolderBase]: For 5097/5097 co-relation queries the response was YES. [2024-11-09 07:01:40,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142215 conditions, 106122 events. 28016/106122 cut-off events. For 5097/5097 co-relation queries the response was YES. Maximal size of possible extension queue 2779. Compared 1629737 event pairs, 24788 based on Foata normal form. 10626/101018 useless extension candidates. Maximal degree in co-relation 140435. Up to 31349 conditions per place. [2024-11-09 07:01:41,242 INFO L140 encePairwiseOnDemand]: 362/373 looper letters, 32 selfloop transitions, 2 changer transitions 1/340 dead transitions. [2024-11-09 07:01:41,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 340 transitions, 787 flow [2024-11-09 07:01:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:41,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1021 transitions. [2024-11-09 07:01:41,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9124218051831993 [2024-11-09 07:01:41,264 INFO L175 Difference]: Start difference. First operand has 357 places, 349 transitions, 737 flow. Second operand 3 states and 1021 transitions. [2024-11-09 07:01:41,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 340 transitions, 787 flow [2024-11-09 07:01:41,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 340 transitions, 762 flow, removed 0 selfloop flow, removed 13 redundant places. [2024-11-09 07:01:41,298 INFO L231 Difference]: Finished difference. Result has 345 places, 339 transitions, 696 flow [2024-11-09 07:01:41,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=345, PETRI_TRANSITIONS=339} [2024-11-09 07:01:41,307 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, -12 predicate places. [2024-11-09 07:01:41,307 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 339 transitions, 696 flow [2024-11-09 07:01:41,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-11-09 07:01:41,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:41,309 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, 1, 1] [2024-11-09 07:01:41,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:01:41,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:01:41,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1225134375, now seen corresponding path program 1 times [2024-11-09 07:01:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844124258] [2024-11-09 07:01:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:41,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:41,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844124258] [2024-11-09 07:01:41,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844124258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:41,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:41,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411762088] [2024-11-09 07:01:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:41,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:41,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:41,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 373 [2024-11-09 07:01:41,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 339 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-11-09 07:01:41,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:41,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 373 [2024-11-09 07:01:41,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:00,241 INFO L124 PetriNetUnfolderBase]: 30330/113522 cut-off events. [2024-11-09 07:02:00,242 INFO L125 PetriNetUnfolderBase]: For 1578/1578 co-relation queries the response was YES. [2024-11-09 07:02:01,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150499 conditions, 113522 events. 30330/113522 cut-off events. For 1578/1578 co-relation queries the response was YES. Maximal size of possible extension queue 2834. Compared 1756849 event pairs, 26892 based on Foata normal form. 0/96712 useless extension candidates. Maximal degree in co-relation 150459. Up to 33937 conditions per place. [2024-11-09 07:02:02,265 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 32 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2024-11-09 07:02:02,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 338 transitions, 762 flow [2024-11-09 07:02:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:02,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1013 transitions. [2024-11-09 07:02:02,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9052725647899911 [2024-11-09 07:02:02,269 INFO L175 Difference]: Start difference. First operand has 345 places, 339 transitions, 696 flow. Second operand 3 states and 1013 transitions. [2024-11-09 07:02:02,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 338 transitions, 762 flow [2024-11-09 07:02:02,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 338 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:02,275 INFO L231 Difference]: Finished difference. Result has 343 places, 338 transitions, 694 flow [2024-11-09 07:02:02,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=694, PETRI_PLACES=343, PETRI_TRANSITIONS=338} [2024-11-09 07:02:02,277 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, -14 predicate places. [2024-11-09 07:02:02,277 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 338 transitions, 694 flow [2024-11-09 07:02:02,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-11-09 07:02:02,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:02,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:02:02,279 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:02:02,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1808854511, now seen corresponding path program 1 times [2024-11-09 07:02:02,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:02,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364223344] [2024-11-09 07:02:02,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:02,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:02,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:02,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364223344] [2024-11-09 07:02:02,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364223344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:02,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:02,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:02,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222444974] [2024-11-09 07:02:02,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:02,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:02,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:02,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:02,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:02,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 373 [2024-11-09 07:02:02,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 338 transitions, 694 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-11-09 07:02:02,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:02,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 373 [2024-11-09 07:02:02,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand