./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-ext/04_incdec_cas-race.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-ext/04_incdec_cas-race.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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:04:09,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:04:09,648 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:04:09,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:04:09,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:04:09,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:04:09,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:04:09,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:04:09,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:04:09,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:04:09,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:04:09,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:04:09,677 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:04:09,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:04:09,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:04:09,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:04:09,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:04:09,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:04:09,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:04:09,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:04:09,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:04:09,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:04:09,683 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:04:09,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:04:09,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:04:09,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:04:09,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:04:09,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:04:09,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:04:09,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2024-10-24 15:04:09,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:04:09,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:04:09,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:04:09,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:04:09,938 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:04:09,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2024-10-24 15:04:11,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:04:11,379 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:04:11,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2024-10-24 15:04:11,400 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3cad032d/85ca067a6b50402691721e3b7f1f8005/FLAG626d9d975 [2024-10-24 15:04:11,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3cad032d/85ca067a6b50402691721e3b7f1f8005 [2024-10-24 15:04:11,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:04:11,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:04:11,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:04:11,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:04:11,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:04:11,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:11" (1/1) ... [2024-10-24 15:04:11,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335cdb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:11, skipping insertion in model container [2024-10-24 15:04:11,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:11" (1/1) ... [2024-10-24 15:04:11,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:04:12,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:04:12,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:04:12,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:04:12,109 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:04:12,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12 WrapperNode [2024-10-24 15:04:12,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:04:12,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:04:12,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:04:12,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:04:12,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,154 INFO L138 Inliner]: procedures = 172, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 266 [2024-10-24 15:04:12,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:04:12,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:04:12,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:04:12,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:04:12,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:04:12,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:04:12,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:04:12,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:04:12,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (1/1) ... [2024-10-24 15:04:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:04:12,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:04:12,211 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 15:04:12,213 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 15:04:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-24 15:04:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:04:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:04:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:04:12,244 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 15:04:12,337 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:04:12,339 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:04:12,707 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:04:12,708 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:04:12,992 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:04:12,993 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 15:04:12,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:12 BoogieIcfgContainer [2024-10-24 15:04:12,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:04:12,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:04:12,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:04:12,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:04:12,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:04:11" (1/3) ... [2024-10-24 15:04:12,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc27f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:12, skipping insertion in model container [2024-10-24 15:04:12,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:12" (2/3) ... [2024-10-24 15:04:12,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc27f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:12, skipping insertion in model container [2024-10-24 15:04:12,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:12" (3/3) ... [2024-10-24 15:04:13,000 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2024-10-24 15:04:13,012 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:04:13,013 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-24 15:04:13,013 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:04:13,102 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:04:13,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 136 transitions, 276 flow [2024-10-24 15:04:13,185 INFO L124 PetriNetUnfolderBase]: 11/145 cut-off events. [2024-10-24 15:04:13,185 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:04:13,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 145 events. 11/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 321 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2024-10-24 15:04:13,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 136 transitions, 276 flow [2024-10-24 15:04:13,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 136 transitions, 276 flow [2024-10-24 15:04:13,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:04:13,213 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;@2546a458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:04:13,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-24 15:04:13,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:04:13,223 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-10-24 15:04:13,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:04:13,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:13,224 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:13,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:04:13,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:13,229 INFO L85 PathProgramCache]: Analyzing trace with hash 37087612, now seen corresponding path program 1 times [2024-10-24 15:04:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057220754] [2024-10-24 15:04:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:13,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:04:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:13,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:04:13,377 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:04:13,378 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-10-24 15:04:13,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-10-24 15:04:13,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-10-24 15:04:13,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-10-24 15:04:13,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-10-24 15:04:13,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-10-24 15:04:13,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-10-24 15:04:13,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-10-24 15:04:13,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-10-24 15:04:13,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-10-24 15:04:13,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-10-24 15:04:13,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-10-24 15:04:13,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-10-24 15:04:13,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-10-24 15:04:13,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-10-24 15:04:13,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-10-24 15:04:13,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:04:13,388 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-24 15:04:13,394 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:04:13,394 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:04:13,510 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:04:13,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 242 transitions, 494 flow [2024-10-24 15:04:13,575 INFO L124 PetriNetUnfolderBase]: 21/262 cut-off events. [2024-10-24 15:04:13,575 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 15:04:13,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 262 events. 21/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 998 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 221. Up to 6 conditions per place. [2024-10-24 15:04:13,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 242 transitions, 494 flow [2024-10-24 15:04:13,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 242 transitions, 494 flow [2024-10-24 15:04:13,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:04:13,591 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;@2546a458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:04:13,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-10-24 15:04:13,604 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:04:13,605 INFO L124 PetriNetUnfolderBase]: 3/75 cut-off events. [2024-10-24 15:04:13,605 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:04:13,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:13,605 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] [2024-10-24 15:04:13,606 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-10-24 15:04:13,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash -973819314, now seen corresponding path program 1 times [2024-10-24 15:04:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:13,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319987358] [2024-10-24 15:04:13,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:13,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:13,687 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 15:04:13,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:13,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319987358] [2024-10-24 15:04:13,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319987358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:13,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:13,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:13,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026174168] [2024-10-24 15:04:13,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:13,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:04:13,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:04:13,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:04:13,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 242 [2024-10-24 15:04:13,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 242 transitions, 494 flow. Second operand has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 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 15:04:13,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:13,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 242 [2024-10-24 15:04:13,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:14,136 INFO L124 PetriNetUnfolderBase]: 72/633 cut-off events. [2024-10-24 15:04:14,137 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-24 15:04:14,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 633 events. 72/633 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3535 event pairs, 20 based on Foata normal form. 51/604 useless extension candidates. Maximal degree in co-relation 196. Up to 73 conditions per place. [2024-10-24 15:04:14,147 INFO L140 encePairwiseOnDemand]: 208/242 looper letters, 14 selfloop transitions, 0 changer transitions 0/205 dead transitions. [2024-10-24 15:04:14,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 205 transitions, 448 flow [2024-10-24 15:04:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:04:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:04:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 436 transitions. [2024-10-24 15:04:14,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9008264462809917 [2024-10-24 15:04:14,163 INFO L175 Difference]: Start difference. First operand has 228 places, 242 transitions, 494 flow. Second operand 2 states and 436 transitions. [2024-10-24 15:04:14,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 205 transitions, 448 flow [2024-10-24 15:04:14,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 205 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:04:14,170 INFO L231 Difference]: Finished difference. Result has 197 places, 205 transitions, 420 flow [2024-10-24 15:04:14,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=420, PETRI_PLACES=197, PETRI_TRANSITIONS=205} [2024-10-24 15:04:14,178 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -31 predicate places. [2024-10-24 15:04:14,178 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 205 transitions, 420 flow [2024-10-24 15:04:14,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 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 15:04:14,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:14,179 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:14,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:04:14,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-10-24 15:04:14,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash 358521693, now seen corresponding path program 1 times [2024-10-24 15:04:14,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:14,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526119586] [2024-10-24 15:04:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:14,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:14,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:04:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:14,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:04:14,226 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:04:14,226 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-10-24 15:04:14,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2024-10-24 15:04:14,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-10-24 15:04:14,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-10-24 15:04:14,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-10-24 15:04:14,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-10-24 15:04:14,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-10-24 15:04:14,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-10-24 15:04:14,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-10-24 15:04:14,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-10-24 15:04:14,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-10-24 15:04:14,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-10-24 15:04:14,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-10-24 15:04:14,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-10-24 15:04:14,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-10-24 15:04:14,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-10-24 15:04:14,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-10-24 15:04:14,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-10-24 15:04:14,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-10-24 15:04:14,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-10-24 15:04:14,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-10-24 15:04:14,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:04:14,239 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 15:04:14,240 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:04:14,240 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-24 15:04:14,381 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:04:14,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 348 transitions, 714 flow [2024-10-24 15:04:14,442 INFO L124 PetriNetUnfolderBase]: 31/379 cut-off events. [2024-10-24 15:04:14,443 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-24 15:04:14,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 379 events. 31/379 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1730 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 326. Up to 8 conditions per place. [2024-10-24 15:04:14,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 348 transitions, 714 flow [2024-10-24 15:04:14,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 348 transitions, 714 flow [2024-10-24 15:04:14,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:04:14,458 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;@2546a458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:04:14,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-10-24 15:04:14,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:04:14,464 INFO L124 PetriNetUnfolderBase]: 3/79 cut-off events. [2024-10-24 15:04:14,464 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:04:14,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:14,464 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] [2024-10-24 15:04:14,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-10-24 15:04:14,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:14,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1307415429, now seen corresponding path program 1 times [2024-10-24 15:04:14,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:14,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281128496] [2024-10-24 15:04:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:14,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:14,518 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 15:04:14,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:14,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281128496] [2024-10-24 15:04:14,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281128496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:14,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:14,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:14,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150566607] [2024-10-24 15:04:14,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:14,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:04:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:14,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:04:14,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:04:14,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 348 [2024-10-24 15:04:14,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 348 transitions, 714 flow. Second operand has 2 states, 2 states have (on average 278.5) internal successors, (557), 2 states have internal predecessors, (557), 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 15:04:14,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:14,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 348 [2024-10-24 15:04:14,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:15,343 INFO L124 PetriNetUnfolderBase]: 547/3353 cut-off events. [2024-10-24 15:04:15,344 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2024-10-24 15:04:15,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4022 conditions, 3353 events. 547/3353 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 30735 event pairs, 220 based on Foata normal form. 316/3192 useless extension candidates. Maximal degree in co-relation 717. Up to 548 conditions per place. [2024-10-24 15:04:15,375 INFO L140 encePairwiseOnDemand]: 298/348 looper letters, 21 selfloop transitions, 0 changer transitions 0/295 dead transitions. [2024-10-24 15:04:15,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 295 transitions, 650 flow [2024-10-24 15:04:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:04:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:04:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 625 transitions. [2024-10-24 15:04:15,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8979885057471264 [2024-10-24 15:04:15,379 INFO L175 Difference]: Start difference. First operand has 327 places, 348 transitions, 714 flow. Second operand 2 states and 625 transitions. [2024-10-24 15:04:15,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 295 transitions, 650 flow [2024-10-24 15:04:15,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 295 transitions, 648 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-24 15:04:15,389 INFO L231 Difference]: Finished difference. Result has 282 places, 295 transitions, 606 flow [2024-10-24 15:04:15,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=606, PETRI_PLACES=282, PETRI_TRANSITIONS=295} [2024-10-24 15:04:15,390 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -45 predicate places. [2024-10-24 15:04:15,390 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 295 transitions, 606 flow [2024-10-24 15:04:15,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 278.5) internal successors, (557), 2 states have internal predecessors, (557), 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 15:04:15,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:15,391 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] [2024-10-24 15:04:15,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:04:15,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-10-24 15:04:15,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1296070929, now seen corresponding path program 1 times [2024-10-24 15:04:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:15,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279492661] [2024-10-24 15:04:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:15,705 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 15:04:15,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:15,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279492661] [2024-10-24 15:04:15,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279492661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:15,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:15,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:04:15,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269283283] [2024-10-24 15:04:15,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:15,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:04:15,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:15,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:04:15,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:04:16,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 348 [2024-10-24 15:04:16,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 295 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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 15:04:16,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:16,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 348 [2024-10-24 15:04:16,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:25,352 INFO L124 PetriNetUnfolderBase]: 25089/72259 cut-off events. [2024-10-24 15:04:25,352 INFO L125 PetriNetUnfolderBase]: For 1420/1420 co-relation queries the response was YES. [2024-10-24 15:04:25,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107893 conditions, 72259 events. 25089/72259 cut-off events. For 1420/1420 co-relation queries the response was YES. Maximal size of possible extension queue 3502. Compared 1015918 event pairs, 2316 based on Foata normal form. 0/62000 useless extension candidates. Maximal degree in co-relation 107887. Up to 12309 conditions per place. [2024-10-24 15:04:26,239 INFO L140 encePairwiseOnDemand]: 300/348 looper letters, 180 selfloop transitions, 96 changer transitions 0/513 dead transitions. [2024-10-24 15:04:26,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 513 transitions, 1634 flow [2024-10-24 15:04:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:04:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:04:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1722 transitions. [2024-10-24 15:04:26,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247126436781609 [2024-10-24 15:04:26,243 INFO L175 Difference]: Start difference. First operand has 282 places, 295 transitions, 606 flow. Second operand 6 states and 1722 transitions. [2024-10-24 15:04:26,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 513 transitions, 1634 flow [2024-10-24 15:04:26,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 513 transitions, 1634 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:04:26,259 INFO L231 Difference]: Finished difference. Result has 292 places, 391 transitions, 1278 flow [2024-10-24 15:04:26,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=292, PETRI_TRANSITIONS=391} [2024-10-24 15:04:26,261 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -35 predicate places. [2024-10-24 15:04:26,261 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 391 transitions, 1278 flow [2024-10-24 15:04:26,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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 15:04:26,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:26,262 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 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 15:04:26,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:04:26,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-10-24 15:04:26,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash 404635035, now seen corresponding path program 1 times [2024-10-24 15:04:26,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:26,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063869103] [2024-10-24 15:04:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:26,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:26,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:04:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:26,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:04:26,297 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:04:26,297 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2024-10-24 15:04:26,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2024-10-24 15:04:26,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2024-10-24 15:04:26,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2024-10-24 15:04:26,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2024-10-24 15:04:26,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2024-10-24 15:04:26,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2024-10-24 15:04:26,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2024-10-24 15:04:26,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2024-10-24 15:04:26,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2024-10-24 15:04:26,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2024-10-24 15:04:26,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2024-10-24 15:04:26,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2024-10-24 15:04:26,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2024-10-24 15:04:26,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2024-10-24 15:04:26,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2024-10-24 15:04:26,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2024-10-24 15:04:26,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2024-10-24 15:04:26,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2024-10-24 15:04:26,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2024-10-24 15:04:26,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2024-10-24 15:04:26,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2024-10-24 15:04:26,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2024-10-24 15:04:26,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2024-10-24 15:04:26,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2024-10-24 15:04:26,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2024-10-24 15:04:26,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2024-10-24 15:04:26,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2024-10-24 15:04:26,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:04:26,310 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-24 15:04:26,311 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:04:26,311 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-24 15:04:26,478 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:04:26,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 454 transitions, 936 flow [2024-10-24 15:04:26,585 INFO L124 PetriNetUnfolderBase]: 41/496 cut-off events. [2024-10-24 15:04:26,585 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-24 15:04:26,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 496 events. 41/496 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2478 event pairs, 0 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 431. Up to 10 conditions per place. [2024-10-24 15:04:26,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 454 transitions, 936 flow [2024-10-24 15:04:26,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 454 transitions, 936 flow [2024-10-24 15:04:26,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:04:26,604 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;@2546a458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:04:26,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-10-24 15:04:26,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:04:26,610 INFO L124 PetriNetUnfolderBase]: 3/75 cut-off events. [2024-10-24 15:04:26,610 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:04:26,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:26,610 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] [2024-10-24 15:04:26,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-10-24 15:04:26,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash 836883685, now seen corresponding path program 1 times [2024-10-24 15:04:26,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:26,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464037598] [2024-10-24 15:04:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:26,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:26,630 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 15:04:26,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:26,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464037598] [2024-10-24 15:04:26,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464037598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:26,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796162297] [2024-10-24 15:04:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:26,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:04:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:04:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:04:26,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 454 [2024-10-24 15:04:26,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 454 transitions, 936 flow. Second operand has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 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 15:04:26,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:26,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 454 [2024-10-24 15:04:26,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:29,770 INFO L124 PetriNetUnfolderBase]: 3672/17703 cut-off events. [2024-10-24 15:04:29,770 INFO L125 PetriNetUnfolderBase]: For 2166/2166 co-relation queries the response was YES. [2024-10-24 15:04:29,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22123 conditions, 17703 events. 3672/17703 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 218187 event pairs, 1720 based on Foata normal form. 1891/16880 useless extension candidates. Maximal degree in co-relation 4032. Up to 3673 conditions per place. [2024-10-24 15:04:29,952 INFO L140 encePairwiseOnDemand]: 388/454 looper letters, 28 selfloop transitions, 0 changer transitions 0/385 dead transitions. [2024-10-24 15:04:29,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 385 transitions, 854 flow [2024-10-24 15:04:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:04:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:04:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 814 transitions. [2024-10-24 15:04:29,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8964757709251101 [2024-10-24 15:04:29,955 INFO L175 Difference]: Start difference. First operand has 426 places, 454 transitions, 936 flow. Second operand 2 states and 814 transitions. [2024-10-24 15:04:29,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 385 transitions, 854 flow [2024-10-24 15:04:29,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 385 transitions, 848 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-24 15:04:29,963 INFO L231 Difference]: Finished difference. Result has 367 places, 385 transitions, 792 flow [2024-10-24 15:04:29,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=792, PETRI_PLACES=367, PETRI_TRANSITIONS=385} [2024-10-24 15:04:29,966 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -59 predicate places. [2024-10-24 15:04:29,966 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 385 transitions, 792 flow [2024-10-24 15:04:29,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 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 15:04:29,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:29,966 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] [2024-10-24 15:04:29,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:04:29,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-10-24 15:04:29,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 385526799, now seen corresponding path program 1 times [2024-10-24 15:04:29,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:29,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900528477] [2024-10-24 15:04:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:29,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:30,172 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 15:04:30,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:30,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900528477] [2024-10-24 15:04:30,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900528477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:30,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:30,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:04:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002922296] [2024-10-24 15:04:30,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:30,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:04:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:30,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:04:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:04:30,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 454 [2024-10-24 15:04:30,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 385 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 312.1666666666667) internal successors, (1873), 6 states have internal predecessors, (1873), 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 15:04:30,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:30,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 454 [2024-10-24 15:04:30,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand