./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/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:09:20,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:09:20,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:09:20,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:09:20,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:09:20,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:09:20,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:09:20,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:09:20,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:09:20,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:09:20,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:09:20,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:09:20,808 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:09:20,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:09:20,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:09:20,810 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:09:20,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:09:20,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:09:20,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:09:20,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:09:20,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:09:20,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:09:20,815 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:09:20,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:09:20,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:09:20,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:09:20,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:09:20,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:09:20,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:09:20,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:09:20,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:09:20,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:09:20,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:09:20,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:09:20,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:09:20,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:09:20,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:09:20,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:09:20,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:09:20,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:09:20,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:09:20,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2024-10-24 15:09:21,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:09:21,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:09:21,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:09:21,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:09:21,149 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:09:21,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-10-24 15:09:22,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:09:22,907 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:09:22,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-10-24 15:09:22,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2685716b1/0c4485c569954127b9031129730e93f3/FLAG5d5ce9073 [2024-10-24 15:09:22,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2685716b1/0c4485c569954127b9031129730e93f3 [2024-10-24 15:09:22,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:09:22,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:09:22,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:09:22,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:09:22,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:09:22,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:22" (1/1) ... [2024-10-24 15:09:22,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462efe48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:22, skipping insertion in model container [2024-10-24 15:09:22,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:22" (1/1) ... [2024-10-24 15:09:23,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:09:23,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:09:23,446 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:09:23,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:09:23,584 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:09:23,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23 WrapperNode [2024-10-24 15:09:23,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:09:23,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:09:23,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:09:23,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:09:23,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,659 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 970 [2024-10-24 15:09:23,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:09:23,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:09:23,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:09:23,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:09:23,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:09:23,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:09:23,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:09:23,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:09:23,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (1/1) ... [2024-10-24 15:09:23,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:09:23,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:09:23,804 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) [2024-10-24 15:09:23,806 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 [2024-10-24 15:09:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:09:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:09:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 15:09:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 15:09:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 15:09:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 15:09:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 15:09:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 15:09:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 15:09:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 15:09:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:09:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:09:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:09:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:09:23,884 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:09:24,104 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:09:24,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:09:25,578 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:09:25,578 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:09:31,809 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:09:31,810 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:09:31,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:09:31 BoogieIcfgContainer [2024-10-24 15:09:31,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:09:31,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:09:31,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:09:31,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:09:31,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:09:22" (1/3) ... [2024-10-24 15:09:31,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccadc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:09:31, skipping insertion in model container [2024-10-24 15:09:31,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:23" (2/3) ... [2024-10-24 15:09:31,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccadc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:09:31, skipping insertion in model container [2024-10-24 15:09:31,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:09:31" (3/3) ... [2024-10-24 15:09:31,820 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2024-10-24 15:09:31,837 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:09:31,838 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 295 error locations. [2024-10-24 15:09:31,838 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:09:32,116 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:09:32,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 428 transitions, 872 flow [2024-10-24 15:09:32,343 INFO L124 PetriNetUnfolderBase]: 3/424 cut-off events. [2024-10-24 15:09:32,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:09:32,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 424 events. 3/424 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2646 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 386. Up to 2 conditions per place. [2024-10-24 15:09:32,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 428 transitions, 872 flow [2024-10-24 15:09:32,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 434 places, 424 transitions, 860 flow [2024-10-24 15:09:32,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:09:32,414 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;@5e54de9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:09:32,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 555 error locations. [2024-10-24 15:09:32,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:09:32,424 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2024-10-24 15:09:32,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:09:32,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:09:32,425 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] [2024-10-24 15:09:32,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 551 more)] === [2024-10-24 15:09:32,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:09:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1547709637, now seen corresponding path program 1 times [2024-10-24 15:09:32,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:09:32,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978365500] [2024-10-24 15:09:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:09:32,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:09:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:09:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:09:32,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:09:32,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978365500] [2024-10-24 15:09:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978365500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:09:32,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:09:32,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 15:09:32,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752309930] [2024-10-24 15:09:32,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:09:32,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:09:32,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:09:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:09:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:09:32,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 428 [2024-10-24 15:09:32,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 424 transitions, 860 flow. Second operand has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2024-10-24 15:09:32,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:09:32,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 428 [2024-10-24 15:09:32,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:09:41,616 INFO L124 PetriNetUnfolderBase]: 5748/16356 cut-off events. [2024-10-24 15:09:41,616 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-10-24 15:09:41,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24332 conditions, 16356 events. 5748/16356 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 190673 event pairs, 5748 based on Foata normal form. 1391/16633 useless extension candidates. Maximal degree in co-relation 24279. Up to 7769 conditions per place. [2024-10-24 15:09:41,766 INFO L140 encePairwiseOnDemand]: 132/428 looper letters, 22 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2024-10-24 15:09:41,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 126 transitions, 308 flow [2024-10-24 15:09:41,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:09:41,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:09:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 536 transitions. [2024-10-24 15:09:41,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6261682242990654 [2024-10-24 15:09:41,789 INFO L175 Difference]: Start difference. First operand has 434 places, 424 transitions, 860 flow. Second operand 2 states and 536 transitions. [2024-10-24 15:09:41,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 126 transitions, 308 flow [2024-10-24 15:09:41,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 126 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 15:09:41,797 INFO L231 Difference]: Finished difference. Result has 136 places, 126 transitions, 260 flow [2024-10-24 15:09:41,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=136, PETRI_TRANSITIONS=126} [2024-10-24 15:09:41,807 INFO L277 CegarLoopForPetriNet]: 434 programPoint places, -298 predicate places. [2024-10-24 15:09:41,808 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 126 transitions, 260 flow [2024-10-24 15:09:41,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2024-10-24 15:09:41,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:09:41,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:09:41,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:09:41,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 551 more)] === [2024-10-24 15:09:41,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:09:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1729579626, now seen corresponding path program 1 times [2024-10-24 15:09:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:09:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287989470] [2024-10-24 15:09:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:09:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:09:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:09:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:09:41,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:09:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287989470] [2024-10-24 15:09:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287989470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:09:41,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:09:41,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:09:41,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042145444] [2024-10-24 15:09:41,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:09:41,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:09:41,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:09:41,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:09:41,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:09:41,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 428 [2024-10-24 15:09:41,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 126 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-10-24 15:09:41,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:09:41,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 428 [2024-10-24 15:09:41,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:09:51,782 INFO L124 PetriNetUnfolderBase]: 8756/23451 cut-off events. [2024-10-24 15:09:51,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:09:51,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35392 conditions, 23451 events. 8756/23451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 267931 event pairs, 2740 based on Foata normal form. 0/21970 useless extension candidates. Maximal degree in co-relation 35389. Up to 7936 conditions per place. [2024-10-24 15:09:51,915 INFO L140 encePairwiseOnDemand]: 426/428 looper letters, 38 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2024-10-24 15:09:51,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 366 flow [2024-10-24 15:09:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:09:51,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:09:51,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2024-10-24 15:09:51,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.278816199376947 [2024-10-24 15:09:51,918 INFO L175 Difference]: Start difference. First operand has 136 places, 126 transitions, 260 flow. Second operand 3 states and 358 transitions. [2024-10-24 15:09:51,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 366 flow [2024-10-24 15:09:51,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:09:51,923 INFO L231 Difference]: Finished difference. Result has 137 places, 125 transitions, 260 flow [2024-10-24 15:09:51,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=137, PETRI_TRANSITIONS=125} [2024-10-24 15:09:51,925 INFO L277 CegarLoopForPetriNet]: 434 programPoint places, -297 predicate places. [2024-10-24 15:09:51,926 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 125 transitions, 260 flow [2024-10-24 15:09:51,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-10-24 15:09:51,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:09:51,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:09:51,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:09:51,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 551 more)] === [2024-10-24 15:09:51,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:09:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1938598471, now seen corresponding path program 1 times [2024-10-24 15:09:51,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:09:51,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261128874] [2024-10-24 15:09:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:09:51,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:09:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:09:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:09:52,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:09:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261128874] [2024-10-24 15:09:52,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261128874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:09:52,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:09:52,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:09:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775395143] [2024-10-24 15:09:52,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:09:52,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:09:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:09:52,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:09:52,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:09:52,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 428 [2024-10-24 15:09:52,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 125 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2024-10-24 15:09:52,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:09:52,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 428 [2024-10-24 15:09:52,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand