/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/goblint-regression/28-race_reach_27-funptr_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:05:27,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:05:27,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 04:05:27,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:05:27,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:05:27,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:05:27,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:05:27,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:05:27,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:05:27,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:05:27,718 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:05:27,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:05:27,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:05:27,719 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:05:27,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:05:27,721 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:05:27,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:05:27,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:05:27,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:05:27,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:05:27,722 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:05:27,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:05:27,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:05:27,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:05:27,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:05:27,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:05:27,724 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:05:27,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:05:27,724 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:05:27,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:05:27,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:05:27,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:05:27,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:05:27,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:05:27,994 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:05:27,994 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:05:27,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i [2023-08-25 04:05:28,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:05:29,216 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:05:29,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i [2023-08-25 04:05:29,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65271af30/c1418f32ce0b4b08809bb8d85105d028/FLAGc7868fa9f [2023-08-25 04:05:29,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65271af30/c1418f32ce0b4b08809bb8d85105d028 [2023-08-25 04:05:29,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:05:29,245 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:05:29,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:05:29,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:05:29,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:05:29,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f813352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29, skipping insertion in model container [2023-08-25 04:05:29,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,281 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:05:29,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:05:29,575 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:05:29,596 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:05:29,598 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:05:29,604 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 04:05:29,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:05:29,676 WARN L669 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 04:05:29,682 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:05:29,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29 WrapperNode [2023-08-25 04:05:29,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:05:29,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:05:29,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:05:29,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:05:29,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,726 INFO L138 Inliner]: procedures = 273, calls = 44, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 190 [2023-08-25 04:05:29,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:05:29,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:05:29,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:05:29,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:05:29,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:05:29,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:05:29,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:05:29,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:05:29,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (1/1) ... [2023-08-25 04:05:29,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:05:29,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:05:29,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 04:05:29,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 04:05:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:05:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:05:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:05:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:05:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:05:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:05:29,811 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:05:29,960 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:05:29,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:05:30,204 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:05:30,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:05:30,211 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-25 04:05:30,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:05:30 BoogieIcfgContainer [2023-08-25 04:05:30,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:05:30,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:05:30,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:05:30,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:05:30,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:05:29" (1/3) ... [2023-08-25 04:05:30,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225967e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:05:30, skipping insertion in model container [2023-08-25 04:05:30,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:05:29" (2/3) ... [2023-08-25 04:05:30,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225967e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:05:30, skipping insertion in model container [2023-08-25 04:05:30,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:05:30" (3/3) ... [2023-08-25 04:05:30,224 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2023-08-25 04:05:30,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:05:30,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-25 04:05:30,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:05:30,293 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:05:30,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,391 INFO L124 PetriNetUnfolderBase]: 26/257 cut-off events. [2023-08-25 04:05:30,391 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:05:30,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 257 events. 26/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 895 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 159. Up to 4 conditions per place. [2023-08-25 04:05:30,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:05:30,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,440 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 200 transitions, 408 flow [2023-08-25 04:05:30,554 INFO L124 PetriNetUnfolderBase]: 26/257 cut-off events. [2023-08-25 04:05:30,555 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:05:30,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 257 events. 26/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 895 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 159. Up to 4 conditions per place. [2023-08-25 04:05:30,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 12222 [2023-08-25 04:05:33,483 INFO L134 LiptonReduction]: Checked pairs total: 36254 [2023-08-25 04:05:33,484 INFO L136 LiptonReduction]: Total number of compositions: 138 [2023-08-25 04:05:33,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:05:33,511 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;@97ed780, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:05:33,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-25 04:05:33,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:05:33,514 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 04:05:33,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:05:33,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:33,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:05:33,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:05:33,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:33,518 INFO L85 PathProgramCache]: Analyzing trace with hash 714877066, now seen corresponding path program 1 times [2023-08-25 04:05:33,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:33,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429675579] [2023-08-25 04:05:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:33,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:33,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429675579] [2023-08-25 04:05:33,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429675579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:33,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:05:33,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:05:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684560310] [2023-08-25 04:05:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:33,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:33,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:05:33,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 338 [2023-08-25 04:05:33,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:33,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:33,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 338 [2023-08-25 04:05:33,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:05:33,915 INFO L124 PetriNetUnfolderBase]: 365/989 cut-off events. [2023-08-25 04:05:33,915 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:05:33,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 989 events. 365/989 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6178 event pairs, 312 based on Foata normal form. 125/942 useless extension candidates. Maximal degree in co-relation 1730. Up to 733 conditions per place. [2023-08-25 04:05:33,922 INFO L140 encePairwiseOnDemand]: 318/338 looper letters, 67 selfloop transitions, 2 changer transitions 2/100 dead transitions. [2023-08-25 04:05:33,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 100 transitions, 350 flow [2023-08-25 04:05:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:05:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:05:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2023-08-25 04:05:33,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6055226824457594 [2023-08-25 04:05:33,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2023-08-25 04:05:33,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2023-08-25 04:05:33,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:05:33,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2023-08-25 04:05:33,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:33,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:33,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:33,951 INFO L175 Difference]: Start difference. First operand has 76 places, 91 transitions, 190 flow. Second operand 3 states and 614 transitions. [2023-08-25 04:05:33,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 100 transitions, 350 flow [2023-08-25 04:05:33,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:05:33,957 INFO L231 Difference]: Finished difference. Result has 77 places, 71 transitions, 155 flow [2023-08-25 04:05:33,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2023-08-25 04:05:33,960 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2023-08-25 04:05:33,960 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 155 flow [2023-08-25 04:05:33,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:33,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:33,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:05:33,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:05:33,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:05:33,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:33,967 INFO L85 PathProgramCache]: Analyzing trace with hash 678104016, now seen corresponding path program 1 times [2023-08-25 04:05:33,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:33,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163794500] [2023-08-25 04:05:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:34,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:34,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163794500] [2023-08-25 04:05:34,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163794500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:34,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:05:34,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:05:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779819603] [2023-08-25 04:05:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:34,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:34,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:05:34,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 338 [2023-08-25 04:05:34,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:34,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:34,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 338 [2023-08-25 04:05:34,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:05:34,234 INFO L124 PetriNetUnfolderBase]: 746/1987 cut-off events. [2023-08-25 04:05:34,234 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-25 04:05:34,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3628 conditions, 1987 events. 746/1987 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 14827 event pairs, 27 based on Foata normal form. 0/1639 useless extension candidates. Maximal degree in co-relation 3612. Up to 861 conditions per place. [2023-08-25 04:05:34,244 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 86 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2023-08-25 04:05:34,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 113 transitions, 422 flow [2023-08-25 04:05:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:05:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:05:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2023-08-25 04:05:34,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6005917159763313 [2023-08-25 04:05:34,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2023-08-25 04:05:34,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2023-08-25 04:05:34,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:05:34,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2023-08-25 04:05:34,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:34,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:34,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:34,252 INFO L175 Difference]: Start difference. First operand has 77 places, 71 transitions, 155 flow. Second operand 3 states and 609 transitions. [2023-08-25 04:05:34,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 113 transitions, 422 flow [2023-08-25 04:05:34,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 113 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:05:34,256 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 173 flow [2023-08-25 04:05:34,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2023-08-25 04:05:34,257 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 2 predicate places. [2023-08-25 04:05:34,257 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 173 flow [2023-08-25 04:05:34,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:34,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:34,258 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:05:34,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:05:34,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:05:34,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:34,263 INFO L85 PathProgramCache]: Analyzing trace with hash 678117996, now seen corresponding path program 1 times [2023-08-25 04:05:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:34,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056574250] [2023-08-25 04:05:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:34,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:05:34,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:05:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:05:34,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:05:34,349 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:05:34,350 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-08-25 04:05:34,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2023-08-25 04:05:34,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2023-08-25 04:05:34,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2023-08-25 04:05:34,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (18 of 23 remaining) [2023-08-25 04:05:34,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2023-08-25 04:05:34,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2023-08-25 04:05:34,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2023-08-25 04:05:34,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2023-08-25 04:05:34,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2023-08-25 04:05:34,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2023-08-25 04:05:34,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2023-08-25 04:05:34,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2023-08-25 04:05:34,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2023-08-25 04:05:34,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2023-08-25 04:05:34,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2023-08-25 04:05:34,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2023-08-25 04:05:34,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2023-08-25 04:05:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:05:34,360 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 04:05:34,363 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:05:34,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:05:34,408 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:05:34,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,475 INFO L124 PetriNetUnfolderBase]: 48/444 cut-off events. [2023-08-25 04:05:34,475 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:05:34,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 444 events. 48/444 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1951 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 278. Up to 8 conditions per place. [2023-08-25 04:05:34,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,486 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:05:34,486 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,487 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 299 transitions, 616 flow [2023-08-25 04:05:34,551 INFO L124 PetriNetUnfolderBase]: 48/444 cut-off events. [2023-08-25 04:05:34,551 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:05:34,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 444 events. 48/444 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1951 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 278. Up to 8 conditions per place. [2023-08-25 04:05:34,575 INFO L119 LiptonReduction]: Number of co-enabled transitions 45396 [2023-08-25 04:05:37,361 INFO L134 LiptonReduction]: Checked pairs total: 201982 [2023-08-25 04:05:37,361 INFO L136 LiptonReduction]: Total number of compositions: 177 [2023-08-25 04:05:37,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:05:37,363 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;@97ed780, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:05:37,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-25 04:05:37,365 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:05:37,365 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 04:05:37,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:05:37,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:37,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:05:37,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:05:37,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1263473095, now seen corresponding path program 1 times [2023-08-25 04:05:37,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181689831] [2023-08-25 04:05:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:37,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:37,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181689831] [2023-08-25 04:05:37,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181689831] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:37,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:05:37,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:05:37,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768703975] [2023-08-25 04:05:37,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:37,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:37,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:05:37,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 476 [2023-08-25 04:05:37,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 161 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:37,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:37,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 476 [2023-08-25 04:05:37,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:05:39,539 INFO L124 PetriNetUnfolderBase]: 15142/31223 cut-off events. [2023-08-25 04:05:39,540 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-08-25 04:05:39,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54568 conditions, 31223 events. 15142/31223 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 316880 event pairs, 6864 based on Foata normal form. 3620/30348 useless extension candidates. Maximal degree in co-relation 3083. Up to 23158 conditions per place. [2023-08-25 04:05:39,686 INFO L140 encePairwiseOnDemand]: 445/476 looper letters, 87 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-08-25 04:05:39,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 510 flow [2023-08-25 04:05:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:05:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:05:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-25 04:05:39,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6288515406162465 [2023-08-25 04:05:39,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-25 04:05:39,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-25 04:05:39,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:05:39,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-25 04:05:39,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:39,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:39,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:39,693 INFO L175 Difference]: Start difference. First operand has 135 places, 161 transitions, 340 flow. Second operand 3 states and 898 transitions. [2023-08-25 04:05:39,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 510 flow [2023-08-25 04:05:39,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 157 transitions, 510 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:05:39,698 INFO L231 Difference]: Finished difference. Result has 137 places, 134 transitions, 296 flow [2023-08-25 04:05:39,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2023-08-25 04:05:39,700 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 2 predicate places. [2023-08-25 04:05:39,700 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 296 flow [2023-08-25 04:05:39,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:39,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:39,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:05:39,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:05:39,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:05:39,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:39,702 INFO L85 PathProgramCache]: Analyzing trace with hash 508411057, now seen corresponding path program 1 times [2023-08-25 04:05:39,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:39,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155385484] [2023-08-25 04:05:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155385484] [2023-08-25 04:05:39,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155385484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:39,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:05:39,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:05:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267869309] [2023-08-25 04:05:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:39,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:05:39,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 476 [2023-08-25 04:05:39,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:39,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:39,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 476 [2023-08-25 04:05:39,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:05:43,216 INFO L124 PetriNetUnfolderBase]: 34737/67912 cut-off events. [2023-08-25 04:05:43,216 INFO L125 PetriNetUnfolderBase]: For 1381/1381 co-relation queries the response was YES. [2023-08-25 04:05:43,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122787 conditions, 67912 events. 34737/67912 cut-off events. For 1381/1381 co-relation queries the response was YES. Maximal size of possible extension queue 1925. Compared 727271 event pairs, 9169 based on Foata normal form. 0/57320 useless extension candidates. Maximal degree in co-relation 122600. Up to 31312 conditions per place. [2023-08-25 04:05:43,771 INFO L140 encePairwiseOnDemand]: 469/476 looper letters, 137 selfloop transitions, 5 changer transitions 0/203 dead transitions. [2023-08-25 04:05:43,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 203 transitions, 736 flow [2023-08-25 04:05:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:05:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:05:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-08-25 04:05:43,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6351540616246498 [2023-08-25 04:05:43,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-08-25 04:05:43,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-08-25 04:05:43,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:05:43,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-08-25 04:05:43,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:43,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:43,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:43,780 INFO L175 Difference]: Start difference. First operand has 137 places, 134 transitions, 296 flow. Second operand 3 states and 907 transitions. [2023-08-25 04:05:43,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 203 transitions, 736 flow [2023-08-25 04:05:43,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 203 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:05:43,790 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 338 flow [2023-08-25 04:05:43,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2023-08-25 04:05:43,791 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 5 predicate places. [2023-08-25 04:05:43,791 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 338 flow [2023-08-25 04:05:43,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:43,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:43,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:05:43,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:05:43,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:05:43,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:43,794 INFO L85 PathProgramCache]: Analyzing trace with hash 710071706, now seen corresponding path program 1 times [2023-08-25 04:05:43,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:43,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020459146] [2023-08-25 04:05:43,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:43,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:43,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:43,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020459146] [2023-08-25 04:05:43,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020459146] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:05:43,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625940376] [2023-08-25 04:05:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:43,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:05:43,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:05:43,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:05:43,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 04:05:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:43,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 04:05:43,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:05:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 04:05:43,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 04:05:43,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625940376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:43,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 04:05:43,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-25 04:05:43,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603044882] [2023-08-25 04:05:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:43,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:05:43,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 476 [2023-08-25 04:05:43,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:43,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:43,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 476 [2023-08-25 04:05:43,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:05:48,250 INFO L124 PetriNetUnfolderBase]: 34659/69297 cut-off events. [2023-08-25 04:05:48,261 INFO L125 PetriNetUnfolderBase]: For 8257/8257 co-relation queries the response was YES. [2023-08-25 04:05:48,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129841 conditions, 69297 events. 34659/69297 cut-off events. For 8257/8257 co-relation queries the response was YES. Maximal size of possible extension queue 2041. Compared 752733 event pairs, 28306 based on Foata normal form. 0/59348 useless extension candidates. Maximal degree in co-relation 43806. Up to 50386 conditions per place. [2023-08-25 04:05:48,789 INFO L140 encePairwiseOnDemand]: 471/476 looper letters, 126 selfloop transitions, 7 changer transitions 0/194 dead transitions. [2023-08-25 04:05:48,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 194 transitions, 742 flow [2023-08-25 04:05:48,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:05:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:05:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 880 transitions. [2023-08-25 04:05:48,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6162464985994398 [2023-08-25 04:05:48,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 880 transitions. [2023-08-25 04:05:48,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 880 transitions. [2023-08-25 04:05:48,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:05:48,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 880 transitions. [2023-08-25 04:05:48,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.3333333333333) internal successors, (880), 3 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:48,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:48,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 476.0) internal successors, (1904), 4 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:48,814 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 338 flow. Second operand 3 states and 880 transitions. [2023-08-25 04:05:48,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 194 transitions, 742 flow [2023-08-25 04:05:48,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 194 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:05:48,833 INFO L231 Difference]: Finished difference. Result has 141 places, 144 transitions, 379 flow [2023-08-25 04:05:48,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=141, PETRI_TRANSITIONS=144} [2023-08-25 04:05:48,846 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 6 predicate places. [2023-08-25 04:05:48,846 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 144 transitions, 379 flow [2023-08-25 04:05:48,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:48,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:48,847 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 04:05:48,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 04:05:49,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 04:05:49,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:05:49,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash -671293920, now seen corresponding path program 1 times [2023-08-25 04:05:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451143533] [2023-08-25 04:05:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:05:49,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:05:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:05:49,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:05:49,116 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:05:49,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2023-08-25 04:05:49,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2023-08-25 04:05:49,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2023-08-25 04:05:49,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2023-08-25 04:05:49,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (27 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2023-08-25 04:05:49,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2023-08-25 04:05:49,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2023-08-25 04:05:49,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2023-08-25 04:05:49,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2023-08-25 04:05:49,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2023-08-25 04:05:49,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2023-08-25 04:05:49,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2023-08-25 04:05:49,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2023-08-25 04:05:49,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2023-08-25 04:05:49,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:05:49,120 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 04:05:49,121 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:05:49,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 04:05:49,157 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:05:49,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,244 INFO L124 PetriNetUnfolderBase]: 75/676 cut-off events. [2023-08-25 04:05:49,244 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:05:49,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 676 events. 75/676 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3251 event pairs, 1 based on Foata normal form. 0/550 useless extension candidates. Maximal degree in co-relation 452. Up to 16 conditions per place. [2023-08-25 04:05:49,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,264 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:05:49,264 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,264 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 398 transitions, 826 flow [2023-08-25 04:05:49,339 INFO L124 PetriNetUnfolderBase]: 75/676 cut-off events. [2023-08-25 04:05:49,339 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:05:49,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 676 events. 75/676 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3251 event pairs, 1 based on Foata normal form. 0/550 useless extension candidates. Maximal degree in co-relation 452. Up to 16 conditions per place. [2023-08-25 04:05:49,376 INFO L119 LiptonReduction]: Number of co-enabled transitions 97194 [2023-08-25 04:05:52,873 INFO L134 LiptonReduction]: Checked pairs total: 471954 [2023-08-25 04:05:52,873 INFO L136 LiptonReduction]: Total number of compositions: 220 [2023-08-25 04:05:52,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:05:52,891 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;@97ed780, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:05:52,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-25 04:05:52,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:05:52,892 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 04:05:52,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:05:52,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:05:52,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:05:52,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 04:05:52,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:05:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1947571657, now seen corresponding path program 1 times [2023-08-25 04:05:52,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:05:52,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953539337] [2023-08-25 04:05:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:05:52,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:05:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:05:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:05:52,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:05:52,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953539337] [2023-08-25 04:05:52,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953539337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:05:52,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:05:52,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:05:52,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803393190] [2023-08-25 04:05:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:05:52,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:05:52,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:05:52,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:05:52,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:05:52,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 618 [2023-08-25 04:05:52,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 229 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:05:52,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:05:52,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 618 [2023-08-25 04:05:52,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:55,463 INFO L124 PetriNetUnfolderBase]: 515063/868536 cut-off events. [2023-08-25 04:06:55,464 INFO L125 PetriNetUnfolderBase]: For 6060/6060 co-relation queries the response was YES. [2023-08-25 04:06:57,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567401 conditions, 868536 events. 515063/868536 cut-off events. For 6060/6060 co-relation queries the response was YES. Maximal size of possible extension queue 19887. Compared 10392142 event pairs, 321217 based on Foata normal form. 125474/880538 useless extension candidates. Maximal degree in co-relation 55003. Up to 694624 conditions per place. [2023-08-25 04:07:01,834 INFO L140 encePairwiseOnDemand]: 574/618 looper letters, 112 selfloop transitions, 2 changer transitions 0/212 dead transitions. [2023-08-25 04:07:01,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 212 transitions, 682 flow [2023-08-25 04:07:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:07:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:07:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1191 transitions. [2023-08-25 04:07:01,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6423948220064725 [2023-08-25 04:07:01,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1191 transitions. [2023-08-25 04:07:01,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1191 transitions. [2023-08-25 04:07:01,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:07:01,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1191 transitions. [2023-08-25 04:07:01,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:07:01,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 618.0) internal successors, (2472), 4 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:07:01,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 618.0) internal successors, (2472), 4 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:07:01,844 INFO L175 Difference]: Start difference. First operand has 190 places, 229 transitions, 488 flow. Second operand 3 states and 1191 transitions. [2023-08-25 04:07:01,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 212 transitions, 682 flow [2023-08-25 04:07:01,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 212 transitions, 682 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:07:01,855 INFO L231 Difference]: Finished difference. Result has 191 places, 188 transitions, 416 flow [2023-08-25 04:07:01,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=618, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=191, PETRI_TRANSITIONS=188} [2023-08-25 04:07:01,857 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, 1 predicate places. [2023-08-25 04:07:01,857 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 188 transitions, 416 flow [2023-08-25 04:07:01,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:07:01,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:07:01,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:07:01,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:07:01,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 04:07:01,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:07:01,859 INFO L85 PathProgramCache]: Analyzing trace with hash 239873593, now seen corresponding path program 1 times [2023-08-25 04:07:01,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:07:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342390194] [2023-08-25 04:07:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:07:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:07:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:07:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:01,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:07:01,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342390194] [2023-08-25 04:07:01,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342390194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:07:01,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:07:01,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:07:01,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648525530] [2023-08-25 04:07:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:07:01,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:07:01,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:07:01,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:07:01,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:07:01,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 618 [2023-08-25 04:07:01,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 188 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:07:01,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:07:01,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 618 [2023-08-25 04:07:01,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand