/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:51:41,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:51:41,869 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 21:51:41,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:51:41,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:51:41,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:51:41,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:51:41,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:51:41,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:51:41,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:51:41,913 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:51:41,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:51:41,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:51:41,915 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:51:41,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:51:41,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:51:41,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:51:41,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:51:41,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:51:41,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:51:41,916 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:51:41,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:51:41,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:51:41,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:51:41,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:51:41,918 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:51:41,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:51:41,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:51:41,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:51:41,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:51:41,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:51:41,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:51:41,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:51:41,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:51:41,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:51:41,921 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:51:42,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:51:42,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:51:42,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:51:42,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:51:42,251 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:51:42,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2023-08-25 21:51:43,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:51:43,765 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:51:43,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2023-08-25 21:51:43,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f23a04/e3ec4714ac644b169b75a3b4d88e50a8/FLAG14153b980 [2023-08-25 21:51:43,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f23a04/e3ec4714ac644b169b75a3b4d88e50a8 [2023-08-25 21:51:43,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:51:43,803 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:51:43,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:51:43,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:51:43,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:51:43,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:51:43" (1/1) ... [2023-08-25 21:51:43,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f4037a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:43, skipping insertion in model container [2023-08-25 21:51:43,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:51:43" (1/1) ... [2023-08-25 21:51:43,860 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:51:44,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:51:44,207 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:51:44,224 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-25 21:51:44,226 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-25 21:51:44,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:51:44,287 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:51:44,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44 WrapperNode [2023-08-25 21:51:44,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:51:44,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:51:44,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:51:44,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:51:44,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,337 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2023-08-25 21:51:44,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:51:44,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:51:44,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:51:44,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:51:44,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:51:44,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:51:44,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:51:44,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:51:44,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (1/1) ... [2023-08-25 21:51:44,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:51:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:51:44,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 21:51:44,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 21:51:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 21:51:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 21:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 21:51:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 21:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 21:51:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 21:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:51:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:51:44,427 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 21:51:44,552 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:51:44,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:51:44,851 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:51:44,861 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:51:44,861 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 21:51:44,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:51:44 BoogieIcfgContainer [2023-08-25 21:51:44,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:51:44,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:51:44,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:51:44,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:51:44,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:51:43" (1/3) ... [2023-08-25 21:51:44,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32769341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:51:44, skipping insertion in model container [2023-08-25 21:51:44,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:51:44" (2/3) ... [2023-08-25 21:51:44,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32769341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:51:44, skipping insertion in model container [2023-08-25 21:51:44,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:51:44" (3/3) ... [2023-08-25 21:51:44,872 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-08-25 21:51:44,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:51:44,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-25 21:51:44,888 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:51:44,981 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 21:51:45,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 280 flow [2023-08-25 21:51:45,096 INFO L124 PetriNetUnfolderBase]: 2/125 cut-off events. [2023-08-25 21:51:45,097 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 21:51:45,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-25 21:51:45,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 128 transitions, 280 flow [2023-08-25 21:51:45,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 243 flow [2023-08-25 21:51:45,113 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:51:45,125 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 114 transitions, 243 flow [2023-08-25 21:51:45,129 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 114 transitions, 243 flow [2023-08-25 21:51:45,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 243 flow [2023-08-25 21:51:45,176 INFO L124 PetriNetUnfolderBase]: 2/114 cut-off events. [2023-08-25 21:51:45,177 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:51:45,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 114 events. 2/114 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-25 21:51:45,181 INFO L119 LiptonReduction]: Number of co-enabled transitions 4068 [2023-08-25 21:51:48,187 INFO L134 LiptonReduction]: Checked pairs total: 14233 [2023-08-25 21:51:48,187 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-25 21:51:48,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:51:48,203 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@52b31e7f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:51:48,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-25 21:51:48,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:51:48,206 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 21:51:48,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:51:48,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:48,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 21:51:48,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:48,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash 414222513, now seen corresponding path program 1 times [2023-08-25 21:51:48,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:48,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577384767] [2023-08-25 21:51:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:48,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:48,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577384767] [2023-08-25 21:51:48,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577384767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:48,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:48,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:51:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014181028] [2023-08-25 21:51:48,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:48,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:48,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:48,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 216 [2023-08-25 21:51:48,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-08-25 21:51:48,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:48,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 216 [2023-08-25 21:51:48,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:49,091 INFO L124 PetriNetUnfolderBase]: 5318/8271 cut-off events. [2023-08-25 21:51:49,091 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2023-08-25 21:51:49,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16699 conditions, 8271 events. 5318/8271 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 50078 event pairs, 2127 based on Foata normal form. 350/7323 useless extension candidates. Maximal degree in co-relation 14914. Up to 4299 conditions per place. [2023-08-25 21:51:49,150 INFO L140 encePairwiseOnDemand]: 200/216 looper letters, 59 selfloop transitions, 8 changer transitions 0/69 dead transitions. [2023-08-25 21:51:49,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 69 transitions, 299 flow [2023-08-25 21:51:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-25 21:51:49,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2023-08-25 21:51:49,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-25 21:51:49,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-25 21:51:49,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:49,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-25 21:51:49,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-08-25 21:51:49,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:49,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:49,182 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 103 flow. Second operand 3 states and 392 transitions. [2023-08-25 21:51:49,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 69 transitions, 299 flow [2023-08-25 21:51:49,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 283 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:51:49,191 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 152 flow [2023-08-25 21:51:49,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-08-25 21:51:49,196 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2023-08-25 21:51:49,196 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 152 flow [2023-08-25 21:51:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-08-25 21:51:49,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:49,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:49,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:51:49,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:49,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -948475873, now seen corresponding path program 1 times [2023-08-25 21:51:49,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:49,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695193418] [2023-08-25 21:51:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:49,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:49,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695193418] [2023-08-25 21:51:49,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695193418] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:49,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:49,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:51:49,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470555576] [2023-08-25 21:51:49,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:49,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:49,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:49,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:49,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:49,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 216 [2023-08-25 21:51:49,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2023-08-25 21:51:49,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:49,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 216 [2023-08-25 21:51:49,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:49,946 INFO L124 PetriNetUnfolderBase]: 5833/8965 cut-off events. [2023-08-25 21:51:49,947 INFO L125 PetriNetUnfolderBase]: For 3110/3110 co-relation queries the response was YES. [2023-08-25 21:51:49,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21344 conditions, 8965 events. 5833/8965 cut-off events. For 3110/3110 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 53465 event pairs, 3750 based on Foata normal form. 0/7973 useless extension candidates. Maximal degree in co-relation 9316. Up to 6994 conditions per place. [2023-08-25 21:51:50,008 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 62 selfloop transitions, 10 changer transitions 0/74 dead transitions. [2023-08-25 21:51:50,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 389 flow [2023-08-25 21:51:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-25 21:51:50,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2023-08-25 21:51:50,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-25 21:51:50,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-25 21:51:50,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:50,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-25 21:51:50,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-08-25 21:51:50,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:50,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:50,018 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 152 flow. Second operand 3 states and 366 transitions. [2023-08-25 21:51:50,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 389 flow [2023-08-25 21:51:50,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:51:50,031 INFO L231 Difference]: Finished difference. Result has 49 places, 54 transitions, 222 flow [2023-08-25 21:51:50,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=49, PETRI_TRANSITIONS=54} [2023-08-25 21:51:50,033 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2023-08-25 21:51:50,033 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 54 transitions, 222 flow [2023-08-25 21:51:50,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2023-08-25 21:51:50,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:50,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:50,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:51:50,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:50,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1486309848, now seen corresponding path program 1 times [2023-08-25 21:51:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005324792] [2023-08-25 21:51:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:50,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:50,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:50,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005324792] [2023-08-25 21:51:50,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005324792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:50,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:50,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 21:51:50,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501439250] [2023-08-25 21:51:50,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:50,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:50,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:50,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:50,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 216 [2023-08-25 21:51:50,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 54 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2023-08-25 21:51:50,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:50,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 216 [2023-08-25 21:51:50,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:50,577 INFO L124 PetriNetUnfolderBase]: 3015/5404 cut-off events. [2023-08-25 21:51:50,577 INFO L125 PetriNetUnfolderBase]: For 2410/2631 co-relation queries the response was YES. [2023-08-25 21:51:50,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13019 conditions, 5404 events. 3015/5404 cut-off events. For 2410/2631 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 38775 event pairs, 896 based on Foata normal form. 102/4547 useless extension candidates. Maximal degree in co-relation 8277. Up to 3788 conditions per place. [2023-08-25 21:51:50,614 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 42 selfloop transitions, 3 changer transitions 0/69 dead transitions. [2023-08-25 21:51:50,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 353 flow [2023-08-25 21:51:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-08-25 21:51:50,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864197530864198 [2023-08-25 21:51:50,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-08-25 21:51:50,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-08-25 21:51:50,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:50,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-08-25 21:51:50,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-08-25 21:51:50,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:50,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:50,620 INFO L175 Difference]: Start difference. First operand has 49 places, 54 transitions, 222 flow. Second operand 3 states and 380 transitions. [2023-08-25 21:51:50,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 353 flow [2023-08-25 21:51:50,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:51:50,631 INFO L231 Difference]: Finished difference. Result has 50 places, 56 transitions, 223 flow [2023-08-25 21:51:50,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=50, PETRI_TRANSITIONS=56} [2023-08-25 21:51:50,631 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-25 21:51:50,632 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 56 transitions, 223 flow [2023-08-25 21:51:50,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2023-08-25 21:51:50,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:50,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:50,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:51:50,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:50,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1831088367, now seen corresponding path program 1 times [2023-08-25 21:51:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131270592] [2023-08-25 21:51:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:50,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:50,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131270592] [2023-08-25 21:51:50,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131270592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:50,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:50,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:51:50,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863745439] [2023-08-25 21:51:50,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:50,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:50,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:50,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:50,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 216 [2023-08-25 21:51:50,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 56 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2023-08-25 21:51:50,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:50,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 216 [2023-08-25 21:51:50,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:51,366 INFO L124 PetriNetUnfolderBase]: 6089/9465 cut-off events. [2023-08-25 21:51:51,367 INFO L125 PetriNetUnfolderBase]: For 3834/3834 co-relation queries the response was YES. [2023-08-25 21:51:51,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24905 conditions, 9465 events. 6089/9465 cut-off events. For 3834/3834 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 57838 event pairs, 3187 based on Foata normal form. 0/8349 useless extension candidates. Maximal degree in co-relation 16408. Up to 7029 conditions per place. [2023-08-25 21:51:51,422 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 72 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-08-25 21:51:51,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 87 transitions, 510 flow [2023-08-25 21:51:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-25 21:51:51,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2023-08-25 21:51:51,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-25 21:51:51,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-25 21:51:51,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:51,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-25 21:51:51,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-08-25 21:51:51,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:51,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:51,428 INFO L175 Difference]: Start difference. First operand has 50 places, 56 transitions, 223 flow. Second operand 3 states and 366 transitions. [2023-08-25 21:51:51,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 87 transitions, 510 flow [2023-08-25 21:51:51,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 87 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:51:51,432 INFO L231 Difference]: Finished difference. Result has 53 places, 65 transitions, 334 flow [2023-08-25 21:51:51,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=53, PETRI_TRANSITIONS=65} [2023-08-25 21:51:51,433 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2023-08-25 21:51:51,434 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 65 transitions, 334 flow [2023-08-25 21:51:51,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2023-08-25 21:51:51,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:51,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:51,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 21:51:51,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:51,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash -205335417, now seen corresponding path program 1 times [2023-08-25 21:51:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677427932] [2023-08-25 21:51:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:51,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:51,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677427932] [2023-08-25 21:51:51,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677427932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:51,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:51,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:51:51,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210047302] [2023-08-25 21:51:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:51,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:51:51,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:51,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:51:51,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:51:51,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 216 [2023-08-25 21:51:51,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 65 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-08-25 21:51:51,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:51,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 216 [2023-08-25 21:51:51,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:51,650 INFO L124 PetriNetUnfolderBase]: 138/471 cut-off events. [2023-08-25 21:51:51,650 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-08-25 21:51:51,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 471 events. 138/471 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2416 event pairs, 28 based on Foata normal form. 88/547 useless extension candidates. Maximal degree in co-relation 663. Up to 236 conditions per place. [2023-08-25 21:51:51,652 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 27 selfloop transitions, 5 changer transitions 4/46 dead transitions. [2023-08-25 21:51:51,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 239 flow [2023-08-25 21:51:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:51:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:51:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-25 21:51:51,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5447530864197531 [2023-08-25 21:51:51,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-25 21:51:51,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-25 21:51:51,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:51,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-25 21:51:51,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-25 21:51:51,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:51,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-08-25 21:51:51,658 INFO L175 Difference]: Start difference. First operand has 53 places, 65 transitions, 334 flow. Second operand 3 states and 353 transitions. [2023-08-25 21:51:51,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 239 flow [2023-08-25 21:51:51,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 46 transitions, 201 flow, removed 13 selfloop flow, removed 6 redundant places. [2023-08-25 21:51:51,661 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 104 flow [2023-08-25 21:51:51,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2023-08-25 21:51:51,662 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2023-08-25 21:51:51,662 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 104 flow [2023-08-25 21:51:51,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-08-25 21:51:51,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:51,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:51,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 21:51:51,663 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:51,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:51,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1057423263, now seen corresponding path program 1 times [2023-08-25 21:51:51,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:51,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588439387] [2023-08-25 21:51:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:51,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588439387] [2023-08-25 21:51:51,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588439387] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:51,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:51:51,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66670565] [2023-08-25 21:51:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:51,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:51:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:51:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:51:51,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 216 [2023-08-25 21:51:51,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-08-25 21:51:51,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:51,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 216 [2023-08-25 21:51:51,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:51,821 INFO L124 PetriNetUnfolderBase]: 101/295 cut-off events. [2023-08-25 21:51:51,821 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-08-25 21:51:51,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 295 events. 101/295 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1224 event pairs, 38 based on Foata normal form. 2/289 useless extension candidates. Maximal degree in co-relation 256. Up to 136 conditions per place. [2023-08-25 21:51:51,823 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 33 selfloop transitions, 4 changer transitions 9/54 dead transitions. [2023-08-25 21:51:51,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 257 flow [2023-08-25 21:51:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:51:51,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:51:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2023-08-25 21:51:51,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5775462962962963 [2023-08-25 21:51:51,825 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 499 transitions. [2023-08-25 21:51:51,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 499 transitions. [2023-08-25 21:51:51,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:51,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 499 transitions. [2023-08-25 21:51:51,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 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) [2023-08-25 21:51:51,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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) [2023-08-25 21:51:51,829 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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) [2023-08-25 21:51:51,829 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 104 flow. Second operand 4 states and 499 transitions. [2023-08-25 21:51:51,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 257 flow [2023-08-25 21:51:51,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 21:51:51,832 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 99 flow [2023-08-25 21:51:51,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-08-25 21:51:51,834 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2023-08-25 21:51:51,834 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 99 flow [2023-08-25 21:51:51,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-08-25 21:51:51,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:51,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:51,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 21:51:51,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:51,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:51,835 INFO L85 PathProgramCache]: Analyzing trace with hash -976435411, now seen corresponding path program 1 times [2023-08-25 21:51:51,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:51,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521347378] [2023-08-25 21:51:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:51,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:51:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:51:51,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:51:51,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521347378] [2023-08-25 21:51:51,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521347378] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:51:51,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:51:51,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:51:51,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100904936] [2023-08-25 21:51:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:51:51,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:51:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:51:51,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:51:51,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:51:51,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 216 [2023-08-25 21:51:51,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2023-08-25 21:51:51,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:51:51,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 216 [2023-08-25 21:51:51,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:51:52,007 INFO L124 PetriNetUnfolderBase]: 88/272 cut-off events. [2023-08-25 21:51:52,007 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-25 21:51:52,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 272 events. 88/272 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1058 event pairs, 22 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 396. Up to 96 conditions per place. [2023-08-25 21:51:52,009 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 44 selfloop transitions, 6 changer transitions 2/60 dead transitions. [2023-08-25 21:51:52,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 276 flow [2023-08-25 21:51:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:51:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:51:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2023-08-25 21:51:52,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5594135802469136 [2023-08-25 21:51:52,011 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 725 transitions. [2023-08-25 21:51:52,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 725 transitions. [2023-08-25 21:51:52,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:51:52,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 725 transitions. [2023-08-25 21:51:52,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 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) [2023-08-25 21:51:52,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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) [2023-08-25 21:51:52,016 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 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) [2023-08-25 21:51:52,016 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 99 flow. Second operand 6 states and 725 transitions. [2023-08-25 21:51:52,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 276 flow [2023-08-25 21:51:52,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 268 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 21:51:52,018 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 120 flow [2023-08-25 21:51:52,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2023-08-25 21:51:52,018 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2023-08-25 21:51:52,018 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 120 flow [2023-08-25 21:51:52,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2023-08-25 21:51:52,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:51:52,019 INFO L208 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] [2023-08-25 21:51:52,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 21:51:52,019 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-25 21:51:52,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:51:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash -218861186, now seen corresponding path program 1 times [2023-08-25 21:51:52,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:51:52,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899056640] [2023-08-25 21:51:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:51:52,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:51:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 21:51:52,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 21:51:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 21:51:52,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 21:51:52,068 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 21:51:52,068 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err1ASSERT_VIOLATIONASSERT (17 of 18 remaining) [2023-08-25 21:51:52,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-08-25 21:51:52,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONASSERT (11 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-08-25 21:51:52,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-08-25 21:51:52,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-08-25 21:51:52,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-08-25 21:51:52,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-08-25 21:51:52,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 21:51:52,073 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:51:52,079 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 21:51:52,079 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 21:51:52,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:51:52 BasicIcfg [2023-08-25 21:51:52,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 21:51:52,111 INFO L158 Benchmark]: Toolchain (without parser) took 8308.66ms. Allocated memory was 325.1MB in the beginning and 541.1MB in the end (delta: 216.0MB). Free memory was 299.5MB in the beginning and 376.5MB in the end (delta: -77.0MB). Peak memory consumption was 139.7MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,112 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 325.1MB. Free memory is still 302.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 21:51:52,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.02ms. Allocated memory is still 325.1MB. Free memory was 299.5MB in the beginning and 279.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.36ms. Allocated memory is still 325.1MB. Free memory was 279.8MB in the beginning and 277.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,112 INFO L158 Benchmark]: Boogie Preprocessor took 24.87ms. Allocated memory is still 325.1MB. Free memory was 277.2MB in the beginning and 275.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,113 INFO L158 Benchmark]: RCFGBuilder took 500.05ms. Allocated memory is still 325.1MB. Free memory was 275.7MB in the beginning and 257.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,113 INFO L158 Benchmark]: TraceAbstraction took 7245.28ms. Allocated memory was 325.1MB in the beginning and 541.1MB in the end (delta: 216.0MB). Free memory was 256.8MB in the beginning and 376.5MB in the end (delta: -119.7MB). Peak memory consumption was 97.8MB. Max. memory is 16.0GB. [2023-08-25 21:51:52,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 325.1MB. Free memory is still 302.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 483.02ms. Allocated memory is still 325.1MB. Free memory was 299.5MB in the beginning and 279.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.36ms. Allocated memory is still 325.1MB. Free memory was 279.8MB in the beginning and 277.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.87ms. Allocated memory is still 325.1MB. Free memory was 277.2MB in the beginning and 275.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 500.05ms. Allocated memory is still 325.1MB. Free memory was 275.7MB in the beginning and 257.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 7245.28ms. Allocated memory was 325.1MB in the beginning and 541.1MB in the end (delta: 216.0MB). Free memory was 256.8MB in the beginning and 376.5MB in the end (delta: -119.7MB). Peak memory consumption was 97.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 122 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 44 TransitionsAfterwards, 4068 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 88 TotalNumberOfCompositions, 14233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5600, independent: 5253, independent conditional: 0, independent unconditional: 5253, dependent: 347, dependent conditional: 0, dependent unconditional: 347, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2156, independent: 2100, independent conditional: 0, independent unconditional: 2100, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5600, independent: 3153, independent conditional: 0, independent unconditional: 3153, dependent: 291, dependent conditional: 0, dependent unconditional: 291, unknown: 2156, unknown conditional: 0, unknown unconditional: 2156] , Statistics on independence cache: Total cache size (in pairs): 357, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 20]: assertion can be violated assertion can be violated We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={7:0}, t2={6:0}, t3={5:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={7:0}, t2={6:0}, t3={5:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t3, 0, thread3, 0)=0, t1={7:0}, t2={6:0}, t3={5:0}] [L707] 1 data++ [L709] 1 return 0; [L714] 2 data+=2 [L716] 2 return 0; [L721] 3 data >= 3 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 [L722] CALL 3 reach_error() [L20] COND FALSE 3 !(0) [L20] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 181 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 463 IncrementalHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 39 mSDtfsCounter, 463 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 21:51:52,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...