/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 -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 [2023-08-24 18:10:43,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:10:43,849 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 [2023-08-24 18:10:43,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:10:43,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:10:43,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:10:43,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:10:43,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:10:43,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:10:43,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:10:43,898 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:10:43,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:10:43,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:10:43,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:10:43,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:10:43,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:10:43,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:10:43,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:10:43,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:10:43,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:10:43,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:10:43,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:10:43,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:10:43,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:10:43,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:10:43,904 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:10:43,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:10:43,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:10:43,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:10:43,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:10:43,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:10:43,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:10:43,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:10:43,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:10:43,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:10:43,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:10:44,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:10:44,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:10:44,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:10:44,244 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:10:44,246 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:10:44,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2023-08-24 18:10:45,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:10:45,753 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:10:45,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2023-08-24 18:10:45,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ddbf3ac/e244ba1c6dd94a33a71d3b1f57fffb6d/FLAGea3d16e2f [2023-08-24 18:10:45,787 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ddbf3ac/e244ba1c6dd94a33a71d3b1f57fffb6d [2023-08-24 18:10:45,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:10:45,791 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:10:45,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:10:45,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:10:45,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:10:45,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@918c12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45, skipping insertion in model container [2023-08-24 18:10:45,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,843 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:10:46,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:10:46,192 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:10:46,220 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:10:46,222 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:10:46,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:10:46,296 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:10:46,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46 WrapperNode [2023-08-24 18:10:46,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:10:46,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:10:46,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:10:46,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:10:46,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,344 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2023-08-24 18:10:46,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:10:46,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:10:46,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:10:46,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:10:46,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:10:46,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:10:46,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:10:46,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:10:46,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (1/1) ... [2023-08-24 18:10:46,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:10:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:10:46,410 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) [2023-08-24 18:10:46,426 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 [2023-08-24 18:10:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:10:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 18:10:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 18:10:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 18:10:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 18:10:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 18:10:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 18:10:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:10:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:10:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:10:46,454 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:10:46,582 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:10:46,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:10:46,889 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:10:46,899 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:10:46,899 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 18:10:46,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:10:46 BoogieIcfgContainer [2023-08-24 18:10:46,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:10:46,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:10:46,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:10:46,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:10:46,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:10:45" (1/3) ... [2023-08-24 18:10:46,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccd7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:10:46, skipping insertion in model container [2023-08-24 18:10:46,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:46" (2/3) ... [2023-08-24 18:10:46,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccd7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:10:46, skipping insertion in model container [2023-08-24 18:10:46,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:10:46" (3/3) ... [2023-08-24 18:10:46,910 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-08-24 18:10:46,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:10:46,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-24 18:10:46,925 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:10:46,991 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-24 18:10:47,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 280 flow [2023-08-24 18:10:47,104 INFO L124 PetriNetUnfolderBase]: 2/125 cut-off events. [2023-08-24 18:10:47,105 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 18:10:47,110 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. [2023-08-24 18:10:47,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 128 transitions, 280 flow [2023-08-24 18:10:47,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 243 flow [2023-08-24 18:10:47,120 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:10:47,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 114 transitions, 243 flow [2023-08-24 18:10:47,139 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 114 transitions, 243 flow [2023-08-24 18:10:47,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 243 flow [2023-08-24 18:10:47,184 INFO L124 PetriNetUnfolderBase]: 2/114 cut-off events. [2023-08-24 18:10:47,185 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:10:47,186 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. [2023-08-24 18:10:47,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 4068 [2023-08-24 18:10:50,218 INFO L134 LiptonReduction]: Checked pairs total: 14233 [2023-08-24 18:10:50,218 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-24 18:10:50,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:10:50,234 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;@41ddc9c9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:10:50,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-24 18:10:50,236 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:10:50,237 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-24 18:10:50,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:10:50,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:50,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:10:50,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:50,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash 414222513, now seen corresponding path program 1 times [2023-08-24 18:10:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848406981] [2023-08-24 18:10:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:50,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848406981] [2023-08-24 18:10:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848406981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:10:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704271487] [2023-08-24 18:10:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:50,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:50,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:50,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 216 [2023-08-24 18:10:50,441 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) [2023-08-24 18:10:50,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:50,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 216 [2023-08-24 18:10:50,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:51,161 INFO L124 PetriNetUnfolderBase]: 5318/8271 cut-off events. [2023-08-24 18:10:51,161 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2023-08-24 18:10:51,182 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. [2023-08-24 18:10:51,232 INFO L140 encePairwiseOnDemand]: 200/216 looper letters, 59 selfloop transitions, 8 changer transitions 0/69 dead transitions. [2023-08-24 18:10:51,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 69 transitions, 299 flow [2023-08-24 18:10:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:51,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:51,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-24 18:10:51,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2023-08-24 18:10:51,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-24 18:10:51,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-24 18:10:51,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:51,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-24 18:10:51,263 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) [2023-08-24 18:10:51,269 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) [2023-08-24 18:10:51,270 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) [2023-08-24 18:10:51,271 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 103 flow. Second operand 3 states and 392 transitions. [2023-08-24 18:10:51,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 69 transitions, 299 flow [2023-08-24 18:10:51,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 283 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-24 18:10:51,282 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 152 flow [2023-08-24 18:10:51,284 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} [2023-08-24 18:10:51,287 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2023-08-24 18:10:51,287 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 152 flow [2023-08-24 18:10:51,287 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) [2023-08-24 18:10:51,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:51,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:51,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:10:51,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:51,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash -948475873, now seen corresponding path program 1 times [2023-08-24 18:10:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121165822] [2023-08-24 18:10:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:51,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121165822] [2023-08-24 18:10:51,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121165822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:51,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:51,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:10:51,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708340396] [2023-08-24 18:10:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:51,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:51,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:51,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:51,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 216 [2023-08-24 18:10:51,403 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) [2023-08-24 18:10:51,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:51,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 216 [2023-08-24 18:10:51,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:52,060 INFO L124 PetriNetUnfolderBase]: 5833/8965 cut-off events. [2023-08-24 18:10:52,061 INFO L125 PetriNetUnfolderBase]: For 3110/3110 co-relation queries the response was YES. [2023-08-24 18:10:52,073 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. [2023-08-24 18:10:52,115 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 62 selfloop transitions, 10 changer transitions 0/74 dead transitions. [2023-08-24 18:10:52,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 389 flow [2023-08-24 18:10:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-24 18:10:52,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2023-08-24 18:10:52,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-24 18:10:52,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-24 18:10:52,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:52,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-24 18:10:52,119 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) [2023-08-24 18:10:52,121 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) [2023-08-24 18:10:52,122 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) [2023-08-24 18:10:52,122 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 152 flow. Second operand 3 states and 366 transitions. [2023-08-24 18:10:52,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 389 flow [2023-08-24 18:10:52,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:10:52,133 INFO L231 Difference]: Finished difference. Result has 49 places, 54 transitions, 222 flow [2023-08-24 18:10:52,133 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} [2023-08-24 18:10:52,134 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2023-08-24 18:10:52,134 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 54 transitions, 222 flow [2023-08-24 18:10:52,134 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) [2023-08-24 18:10:52,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:52,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:52,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:10:52,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:52,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1486309848, now seen corresponding path program 1 times [2023-08-24 18:10:52,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:52,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864393226] [2023-08-24 18:10:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:52,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864393226] [2023-08-24 18:10:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864393226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:10:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595018490] [2023-08-24 18:10:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:52,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:52,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 216 [2023-08-24 18:10:52,207 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) [2023-08-24 18:10:52,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:52,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 216 [2023-08-24 18:10:52,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:52,673 INFO L124 PetriNetUnfolderBase]: 3015/5404 cut-off events. [2023-08-24 18:10:52,674 INFO L125 PetriNetUnfolderBase]: For 2410/2631 co-relation queries the response was YES. [2023-08-24 18:10:52,684 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. [2023-08-24 18:10:52,706 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 42 selfloop transitions, 3 changer transitions 0/69 dead transitions. [2023-08-24 18:10:52,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 353 flow [2023-08-24 18:10:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-08-24 18:10:52,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864197530864198 [2023-08-24 18:10:52,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-08-24 18:10:52,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-08-24 18:10:52,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:52,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-08-24 18:10:52,709 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) [2023-08-24 18:10:52,711 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) [2023-08-24 18:10:52,711 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) [2023-08-24 18:10:52,711 INFO L175 Difference]: Start difference. First operand has 49 places, 54 transitions, 222 flow. Second operand 3 states and 380 transitions. [2023-08-24 18:10:52,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 353 flow [2023-08-24 18:10:52,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:10:52,722 INFO L231 Difference]: Finished difference. Result has 50 places, 56 transitions, 223 flow [2023-08-24 18:10:52,723 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} [2023-08-24 18:10:52,724 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-24 18:10:52,727 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 56 transitions, 223 flow [2023-08-24 18:10:52,727 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) [2023-08-24 18:10:52,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:52,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:52,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:10:52,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:52,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1831088367, now seen corresponding path program 1 times [2023-08-24 18:10:52,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:52,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596226698] [2023-08-24 18:10:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:52,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:52,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:52,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596226698] [2023-08-24 18:10:52,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596226698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:52,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:52,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:10:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148010814] [2023-08-24 18:10:52,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:52,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:52,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:52,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:52,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 216 [2023-08-24 18:10:52,806 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) [2023-08-24 18:10:52,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:52,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 216 [2023-08-24 18:10:52,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:53,505 INFO L124 PetriNetUnfolderBase]: 6089/9465 cut-off events. [2023-08-24 18:10:53,505 INFO L125 PetriNetUnfolderBase]: For 3834/3834 co-relation queries the response was YES. [2023-08-24 18:10:53,523 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. [2023-08-24 18:10:53,557 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 72 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-08-24 18:10:53,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 87 transitions, 510 flow [2023-08-24 18:10:53,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-24 18:10:53,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2023-08-24 18:10:53,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-24 18:10:53,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-24 18:10:53,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:53,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-24 18:10:53,560 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) [2023-08-24 18:10:53,562 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) [2023-08-24 18:10:53,562 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) [2023-08-24 18:10:53,562 INFO L175 Difference]: Start difference. First operand has 50 places, 56 transitions, 223 flow. Second operand 3 states and 366 transitions. [2023-08-24 18:10:53,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 87 transitions, 510 flow [2023-08-24 18:10:53,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 87 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:10:53,566 INFO L231 Difference]: Finished difference. Result has 53 places, 65 transitions, 334 flow [2023-08-24 18:10:53,566 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} [2023-08-24 18:10:53,568 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2023-08-24 18:10:53,568 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 65 transitions, 334 flow [2023-08-24 18:10:53,568 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) [2023-08-24 18:10:53,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:53,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:53,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:10:53,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:53,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash -205335417, now seen corresponding path program 1 times [2023-08-24 18:10:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:53,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101903402] [2023-08-24 18:10:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:53,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:53,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101903402] [2023-08-24 18:10:53,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101903402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:53,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:53,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:10:53,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523496103] [2023-08-24 18:10:53,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:53,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:53,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:53,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:53,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:53,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 216 [2023-08-24 18:10:53,705 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) [2023-08-24 18:10:53,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:53,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 216 [2023-08-24 18:10:53,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:53,785 INFO L124 PetriNetUnfolderBase]: 138/471 cut-off events. [2023-08-24 18:10:53,786 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-08-24 18:10:53,787 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. [2023-08-24 18:10:53,788 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 27 selfloop transitions, 5 changer transitions 4/46 dead transitions. [2023-08-24 18:10:53,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 239 flow [2023-08-24 18:10:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-24 18:10:53,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5447530864197531 [2023-08-24 18:10:53,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-24 18:10:53,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-24 18:10:53,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:53,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-24 18:10:53,791 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) [2023-08-24 18:10:53,792 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) [2023-08-24 18:10:53,793 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) [2023-08-24 18:10:53,793 INFO L175 Difference]: Start difference. First operand has 53 places, 65 transitions, 334 flow. Second operand 3 states and 353 transitions. [2023-08-24 18:10:53,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 239 flow [2023-08-24 18:10:53,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 46 transitions, 201 flow, removed 13 selfloop flow, removed 6 redundant places. [2023-08-24 18:10:53,796 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 104 flow [2023-08-24 18:10:53,796 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} [2023-08-24 18:10:53,797 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2023-08-24 18:10:53,797 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 104 flow [2023-08-24 18:10:53,797 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) [2023-08-24 18:10:53,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:53,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:53,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:10:53,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:53,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:53,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1057423263, now seen corresponding path program 1 times [2023-08-24 18:10:53,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:53,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071597401] [2023-08-24 18:10:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:53,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:53,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:53,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071597401] [2023-08-24 18:10:53,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071597401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:53,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:53,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:10:53,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551754277] [2023-08-24 18:10:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:53,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 18:10:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 18:10:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 18:10:53,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 216 [2023-08-24 18:10:53,846 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) [2023-08-24 18:10:53,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:53,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 216 [2023-08-24 18:10:53,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:53,923 INFO L124 PetriNetUnfolderBase]: 101/295 cut-off events. [2023-08-24 18:10:53,924 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-08-24 18:10:53,924 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. [2023-08-24 18:10:53,925 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 33 selfloop transitions, 4 changer transitions 9/54 dead transitions. [2023-08-24 18:10:53,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 257 flow [2023-08-24 18:10:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 18:10:53,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 18:10:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2023-08-24 18:10:53,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5775462962962963 [2023-08-24 18:10:53,927 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 499 transitions. [2023-08-24 18:10:53,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 499 transitions. [2023-08-24 18:10:53,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:53,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 499 transitions. [2023-08-24 18:10:53,929 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) [2023-08-24 18:10:53,930 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) [2023-08-24 18:10:53,931 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) [2023-08-24 18:10:53,931 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 104 flow. Second operand 4 states and 499 transitions. [2023-08-24 18:10:53,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 257 flow [2023-08-24 18:10:53,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-24 18:10:53,933 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 99 flow [2023-08-24 18:10:53,933 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} [2023-08-24 18:10:53,933 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2023-08-24 18:10:53,934 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 99 flow [2023-08-24 18:10:53,934 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) [2023-08-24 18:10:53,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:53,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:53,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:10:53,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:53,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash -976435411, now seen corresponding path program 1 times [2023-08-24 18:10:53,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:53,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65519289] [2023-08-24 18:10:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:53,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:53,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:53,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65519289] [2023-08-24 18:10:53,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65519289] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:53,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:53,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:10:53,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719159635] [2023-08-24 18:10:53,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:53,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:10:53,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:53,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:10:53,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:10:53,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 216 [2023-08-24 18:10:53,994 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) [2023-08-24 18:10:53,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:53,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 216 [2023-08-24 18:10:53,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:54,081 INFO L124 PetriNetUnfolderBase]: 88/272 cut-off events. [2023-08-24 18:10:54,081 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-24 18:10:54,082 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. [2023-08-24 18:10:54,082 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 44 selfloop transitions, 6 changer transitions 2/60 dead transitions. [2023-08-24 18:10:54,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 276 flow [2023-08-24 18:10:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:10:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:10:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2023-08-24 18:10:54,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5594135802469136 [2023-08-24 18:10:54,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 725 transitions. [2023-08-24 18:10:54,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 725 transitions. [2023-08-24 18:10:54,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:54,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 725 transitions. [2023-08-24 18:10:54,087 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) [2023-08-24 18:10:54,089 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) [2023-08-24 18:10:54,089 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) [2023-08-24 18:10:54,090 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 99 flow. Second operand 6 states and 725 transitions. [2023-08-24 18:10:54,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 276 flow [2023-08-24 18:10:54,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 268 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-24 18:10:54,091 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 120 flow [2023-08-24 18:10:54,091 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} [2023-08-24 18:10:54,092 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2023-08-24 18:10:54,092 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 120 flow [2023-08-24 18:10:54,093 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) [2023-08-24 18:10:54,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:54,093 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] [2023-08-24 18:10:54,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:10:54,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-24 18:10:54,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash -218861186, now seen corresponding path program 1 times [2023-08-24 18:10:54,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:54,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429052951] [2023-08-24 18:10:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:54,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:10:54,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:10:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:10:54,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:10:54,143 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:10:54,144 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err1ASSERT_VIOLATIONASSERT (17 of 18 remaining) [2023-08-24 18:10:54,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONASSERT (11 of 18 remaining) [2023-08-24 18:10:54,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-08-24 18:10:54,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-08-24 18:10:54,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-08-24 18:10:54,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-08-24 18:10:54,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:10:54,148 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:54,153 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:10:54,153 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:10:54,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:10:54 BasicIcfg [2023-08-24 18:10:54,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:10:54,184 INFO L158 Benchmark]: Toolchain (without parser) took 8393.16ms. Allocated memory was 381.7MB in the beginning and 551.6MB in the end (delta: 169.9MB). Free memory was 356.3MB in the beginning and 211.1MB in the end (delta: 145.2MB). Peak memory consumption was 316.7MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,184 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 381.7MB. Free memory is still 358.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:10:54,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.37ms. Allocated memory is still 381.7MB. Free memory was 356.3MB in the beginning and 336.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.51ms. Allocated memory is still 381.7MB. Free memory was 336.4MB in the beginning and 334.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,185 INFO L158 Benchmark]: Boogie Preprocessor took 27.92ms. Allocated memory is still 381.7MB. Free memory was 334.3MB in the beginning and 332.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,185 INFO L158 Benchmark]: RCFGBuilder took 528.12ms. Allocated memory is still 381.7MB. Free memory was 332.2MB in the beginning and 315.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,185 INFO L158 Benchmark]: TraceAbstraction took 7278.86ms. Allocated memory was 381.7MB in the beginning and 551.6MB in the end (delta: 169.9MB). Free memory was 314.9MB in the beginning and 211.1MB in the end (delta: 103.8MB). Peak memory consumption was 276.8MB. Max. memory is 16.0GB. [2023-08-24 18:10:54,186 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 381.7MB. Free memory is still 358.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 505.37ms. Allocated memory is still 381.7MB. Free memory was 356.3MB in the beginning and 336.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.51ms. Allocated memory is still 381.7MB. Free memory was 336.4MB in the beginning and 334.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.92ms. Allocated memory is still 381.7MB. Free memory was 334.3MB in the beginning and 332.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 528.12ms. Allocated memory is still 381.7MB. Free memory was 332.2MB in the beginning and 315.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 7278.86ms. Allocated memory was 381.7MB in the beginning and 551.6MB in the end (delta: 169.9MB). Free memory was 314.9MB in the beginning and 211.1MB in the end (delta: 103.8MB). Peak memory consumption was 276.8MB. 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! [2023-08-24 18:10:54,217 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...