/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:52:08,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:52:08,388 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 [2023-08-26 08:52:08,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:52:08,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:52:08,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:52:08,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:52:08,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:52:08,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:52:08,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:52:08,425 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:52:08,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:52:08,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:52:08,426 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:52:08,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:52:08,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:52:08,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:52:08,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:52:08,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:52:08,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:52:08,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:52:08,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:52:08,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:52:08,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:52:08,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:52:08,429 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:52:08,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:52:08,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:52:08,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:52:08,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:52:08,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:52:08,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:52:08,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:52:08,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:52:08,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:52:08,432 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:52:08,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:52:08,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:52:08,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:52:08,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:52:08,741 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:52:08,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2023-08-26 08:52:10,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:52:10,249 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:52:10,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2023-08-26 08:52:10,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600a30acc/33d1cc7ce337403e960b97f8e2d4c9c3/FLAG620c30240 [2023-08-26 08:52:10,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600a30acc/33d1cc7ce337403e960b97f8e2d4c9c3 [2023-08-26 08:52:10,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:52:10,286 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:52:10,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:52:10,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:52:10,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:52:10,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0d4612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10, skipping insertion in model container [2023-08-26 08:52:10,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,318 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:52:10,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:52:10,588 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:52:10,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:52:10,697 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:52:10,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10 WrapperNode [2023-08-26 08:52:10,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:52:10,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:52:10,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:52:10,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:52:10,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,805 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1337 [2023-08-26 08:52:10,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:52:10,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:52:10,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:52:10,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:52:10,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:52:10,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:52:10,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:52:10,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:52:10,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (1/1) ... [2023-08-26 08:52:10,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:52:10,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:52:10,950 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) [2023-08-26 08:52:10,973 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 [2023-08-26 08:52:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:52:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:52:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:52:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:52:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:52:10,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:52:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:52:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:52:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:52:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:52:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:52:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:52:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:52:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:52:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:52:10,992 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:52:11,145 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:52:11,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:52:12,460 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:52:12,475 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:52:12,476 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-26 08:52:12,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:52:12 BoogieIcfgContainer [2023-08-26 08:52:12,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:52:12,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:52:12,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:52:12,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:52:12,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:52:10" (1/3) ... [2023-08-26 08:52:12,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f03ea6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:52:12, skipping insertion in model container [2023-08-26 08:52:12,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:52:10" (2/3) ... [2023-08-26 08:52:12,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f03ea6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:52:12, skipping insertion in model container [2023-08-26 08:52:12,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:52:12" (3/3) ... [2023-08-26 08:52:12,486 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2023-08-26 08:52:12,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:52:12,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 229 error locations. [2023-08-26 08:52:12,502 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:52:12,768 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:52:12,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-26 08:52:14,064 INFO L124 PetriNetUnfolderBase]: 111/1706 cut-off events. [2023-08-26 08:52:14,065 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:52:14,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1706 events. 111/1706 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7408 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-26 08:52:14,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-26 08:52:14,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1594 places, 1695 transitions, 3408 flow [2023-08-26 08:52:14,202 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:52:14,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1594 places, 1695 transitions, 3408 flow [2023-08-26 08:52:14,213 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1594 places, 1695 transitions, 3408 flow [2023-08-26 08:52:14,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1594 places, 1695 transitions, 3408 flow [2023-08-26 08:52:15,106 INFO L124 PetriNetUnfolderBase]: 111/1695 cut-off events. [2023-08-26 08:52:15,107 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:52:15,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1695 events. 111/1695 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7362 event pairs, 0 based on Foata normal form. 0/1356 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-26 08:52:15,392 INFO L119 LiptonReduction]: Number of co-enabled transitions 1187286 [2023-08-26 08:52:51,910 INFO L134 LiptonReduction]: Checked pairs total: 3259326 [2023-08-26 08:52:51,911 INFO L136 LiptonReduction]: Total number of compositions: 1875 [2023-08-26 08:52:51,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:52:51,931 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;@3b9d329f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:52:51,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-08-26 08:52:51,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:52:51,932 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:52:51,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:52:51,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:51,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:52:51,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 426 more)] === [2023-08-26 08:52:51,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:51,938 INFO L85 PathProgramCache]: Analyzing trace with hash 7047, now seen corresponding path program 1 times [2023-08-26 08:52:51,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:51,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934791146] [2023-08-26 08:52:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:51,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:52:52,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:52,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934791146] [2023-08-26 08:52:52,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934791146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:52,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:52,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:52:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051968563] [2023-08-26 08:52:52,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:52,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:52:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:52,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:52:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:52:52,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 3584 [2023-08-26 08:52:52,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 498 transitions, 1014 flow. Second operand has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 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) [2023-08-26 08:52:52,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:52,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 3584 [2023-08-26 08:52:52,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:54:14,264 INFO L124 PetriNetUnfolderBase]: 770085/1244007 cut-off events. [2023-08-26 08:54:14,264 INFO L125 PetriNetUnfolderBase]: For 10045/13372 co-relation queries the response was YES. [2023-08-26 08:54:17,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256264 conditions, 1244007 events. 770085/1244007 cut-off events. For 10045/13372 co-relation queries the response was YES. Maximal size of possible extension queue 20928. Compared 13404457 event pairs, 568454 based on Foata normal form. 37462/1056463 useless extension candidates. Maximal degree in co-relation 2212928. Up to 1005194 conditions per place. [2023-08-26 08:54:25,480 INFO L140 encePairwiseOnDemand]: 3437/3584 looper letters, 203 selfloop transitions, 0 changer transitions 0/351 dead transitions. [2023-08-26 08:54:25,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 351 transitions, 1126 flow [2023-08-26 08:54:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:54:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:54:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3680 transitions. [2023-08-26 08:54:25,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133928571428571 [2023-08-26 08:54:25,538 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3680 transitions. [2023-08-26 08:54:25,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3680 transitions. [2023-08-26 08:54:25,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:54:25,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3680 transitions. [2023-08-26 08:54:25,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1840.0) internal successors, (3680), 2 states have internal predecessors, (3680), 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) [2023-08-26 08:54:25,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3584.0) internal successors, (10752), 3 states have internal predecessors, (10752), 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) [2023-08-26 08:54:25,629 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3584.0) internal successors, (10752), 3 states have internal predecessors, (10752), 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) [2023-08-26 08:54:25,631 INFO L175 Difference]: Start difference. First operand has 456 places, 498 transitions, 1014 flow. Second operand 2 states and 3680 transitions. [2023-08-26 08:54:25,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 351 transitions, 1126 flow [2023-08-26 08:54:25,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 351 transitions, 1114 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:54:25,818 INFO L231 Difference]: Finished difference. Result has 311 places, 351 transitions, 708 flow [2023-08-26 08:54:25,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3584, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=708, PETRI_PLACES=311, PETRI_TRANSITIONS=351} [2023-08-26 08:54:25,823 INFO L281 CegarLoopForPetriNet]: 456 programPoint places, -145 predicate places. [2023-08-26 08:54:25,823 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 351 transitions, 708 flow [2023-08-26 08:54:25,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 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) [2023-08-26 08:54:25,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:54:25,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:54:25,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:54:25,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 426 more)] === [2023-08-26 08:54:25,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:54:25,831 INFO L85 PathProgramCache]: Analyzing trace with hash -736544280, now seen corresponding path program 1 times [2023-08-26 08:54:25,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:54:25,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60158244] [2023-08-26 08:54:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:54:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:54:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:54:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:54:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:54:26,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60158244] [2023-08-26 08:54:26,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60158244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:54:26,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:54:26,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:54:26,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125350279] [2023-08-26 08:54:26,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:54:26,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:54:26,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:54:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:54:26,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:54:26,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1638 out of 3584 [2023-08-26 08:54:26,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 351 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 1640.3333333333333) internal successors, (4921), 3 states have internal predecessors, (4921), 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) [2023-08-26 08:54:26,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:54:26,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1638 of 3584 [2023-08-26 08:54:26,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:55:45,666 INFO L124 PetriNetUnfolderBase]: 770085/1232114 cut-off events. [2023-08-26 08:55:45,667 INFO L125 PetriNetUnfolderBase]: For 2197/2197 co-relation queries the response was YES. [2023-08-26 08:55:48,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239663 conditions, 1232114 events. 770085/1232114 cut-off events. For 2197/2197 co-relation queries the response was YES. Maximal size of possible extension queue 20969. Compared 13119583 event pairs, 331866 based on Foata normal form. 0/1011463 useless extension candidates. Maximal degree in co-relation 2239660. Up to 1004802 conditions per place. [2023-08-26 08:55:53,081 INFO L140 encePairwiseOnDemand]: 3572/3584 looper letters, 268 selfloop transitions, 4 changer transitions 0/412 dead transitions. [2023-08-26 08:55:53,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 412 transitions, 1376 flow [2023-08-26 08:55:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:55:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:55:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5194 transitions. [2023-08-26 08:55:53,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4830729166666667 [2023-08-26 08:55:53,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5194 transitions. [2023-08-26 08:55:53,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5194 transitions. [2023-08-26 08:55:53,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:55:53,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5194 transitions. [2023-08-26 08:55:53,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1731.3333333333333) internal successors, (5194), 3 states have internal predecessors, (5194), 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) [2023-08-26 08:55:53,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:55:53,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:55:53,132 INFO L175 Difference]: Start difference. First operand has 311 places, 351 transitions, 708 flow. Second operand 3 states and 5194 transitions. [2023-08-26 08:55:53,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 412 transitions, 1376 flow [2023-08-26 08:55:53,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 412 transitions, 1376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:55:53,142 INFO L231 Difference]: Finished difference. Result has 306 places, 347 transitions, 720 flow [2023-08-26 08:55:53,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3584, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=306, PETRI_TRANSITIONS=347} [2023-08-26 08:55:53,143 INFO L281 CegarLoopForPetriNet]: 456 programPoint places, -150 predicate places. [2023-08-26 08:55:53,143 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 347 transitions, 720 flow [2023-08-26 08:55:53,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1640.3333333333333) internal successors, (4921), 3 states have internal predecessors, (4921), 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) [2023-08-26 08:55:53,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:55:53,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:55:53,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:55:53,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 426 more)] === [2023-08-26 08:55:53,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:55:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 860538905, now seen corresponding path program 1 times [2023-08-26 08:55:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:55:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154277761] [2023-08-26 08:55:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:55:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:55:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:55:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:55:53,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:55:53,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154277761] [2023-08-26 08:55:53,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154277761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:55:53,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:55:53,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:55:53,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389493775] [2023-08-26 08:55:53,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:55:53,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:55:53,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:55:53,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:55:53,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:55:53,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1638 out of 3584 [2023-08-26 08:55:53,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 347 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 1641.0) internal successors, (4923), 3 states have internal predecessors, (4923), 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) [2023-08-26 08:55:53,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:55:53,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1638 of 3584 [2023-08-26 08:55:53,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:10,314 INFO L124 PetriNetUnfolderBase]: 803980/1281000 cut-off events. [2023-08-26 08:57:10,315 INFO L125 PetriNetUnfolderBase]: For 12137/12372 co-relation queries the response was YES. [2023-08-26 08:57:13,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2353505 conditions, 1281000 events. 803980/1281000 cut-off events. For 12137/12372 co-relation queries the response was YES. Maximal size of possible extension queue 21573. Compared 13569119 event pairs, 281648 based on Foata normal form. 0/1050420 useless extension candidates. Maximal degree in co-relation 2353501. Up to 1045489 conditions per place. [2023-08-26 08:57:18,214 INFO L140 encePairwiseOnDemand]: 3570/3584 looper letters, 298 selfloop transitions, 6 changer transitions 0/434 dead transitions. [2023-08-26 08:57:18,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 434 transitions, 1525 flow [2023-08-26 08:57:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5218 transitions. [2023-08-26 08:57:18,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48530505952380953 [2023-08-26 08:57:18,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5218 transitions. [2023-08-26 08:57:18,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5218 transitions. [2023-08-26 08:57:18,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:18,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5218 transitions. [2023-08-26 08:57:18,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1739.3333333333333) internal successors, (5218), 3 states have internal predecessors, (5218), 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) [2023-08-26 08:57:18,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:57:18,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:57:18,253 INFO L175 Difference]: Start difference. First operand has 306 places, 347 transitions, 720 flow. Second operand 3 states and 5218 transitions. [2023-08-26 08:57:18,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 434 transitions, 1525 flow [2023-08-26 08:57:18,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 434 transitions, 1525 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:18,260 INFO L231 Difference]: Finished difference. Result has 301 places, 345 transitions, 746 flow [2023-08-26 08:57:18,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3584, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=301, PETRI_TRANSITIONS=345} [2023-08-26 08:57:18,261 INFO L281 CegarLoopForPetriNet]: 456 programPoint places, -155 predicate places. [2023-08-26 08:57:18,262 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 345 transitions, 746 flow [2023-08-26 08:57:18,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1641.0) internal successors, (4923), 3 states have internal predecessors, (4923), 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) [2023-08-26 08:57:18,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:18,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:18,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:57:18,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 426 more)] === [2023-08-26 08:57:18,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:18,264 INFO L85 PathProgramCache]: Analyzing trace with hash 541722355, now seen corresponding path program 1 times [2023-08-26 08:57:18,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475116376] [2023-08-26 08:57:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:18,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:18,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475116376] [2023-08-26 08:57:18,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475116376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:18,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:18,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494911677] [2023-08-26 08:57:18,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:18,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:18,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:18,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:18,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:18,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1623 out of 3584 [2023-08-26 08:57:18,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 345 transitions, 746 flow. Second operand has 3 states, 3 states have (on average 1626.3333333333333) internal successors, (4879), 3 states have internal predecessors, (4879), 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) [2023-08-26 08:57:18,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:18,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1623 of 3584 [2023-08-26 08:57:18,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:43,860 INFO L124 PetriNetUnfolderBase]: 783933/1260361 cut-off events. [2023-08-26 08:58:43,860 INFO L125 PetriNetUnfolderBase]: For 32233/33261 co-relation queries the response was YES. [2023-08-26 08:58:47,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2337359 conditions, 1260361 events. 783933/1260361 cut-off events. For 32233/33261 co-relation queries the response was YES. Maximal size of possible extension queue 21510. Compared 13508280 event pairs, 562778 based on Foata normal form. 0/1032275 useless extension candidates. Maximal degree in co-relation 2337354. Up to 1024758 conditions per place. [2023-08-26 08:58:54,459 INFO L140 encePairwiseOnDemand]: 3577/3584 looper letters, 209 selfloop transitions, 6 changer transitions 0/348 dead transitions. [2023-08-26 08:58:54,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 348 transitions, 1182 flow [2023-08-26 08:58:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:58:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:58:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5078 transitions. [2023-08-26 08:58:54,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47228422619047616 [2023-08-26 08:58:54,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5078 transitions. [2023-08-26 08:58:54,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5078 transitions. [2023-08-26 08:58:54,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:54,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5078 transitions. [2023-08-26 08:58:54,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1692.6666666666667) internal successors, (5078), 3 states have internal predecessors, (5078), 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) [2023-08-26 08:58:54,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:58:54,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3584.0) internal successors, (14336), 4 states have internal predecessors, (14336), 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) [2023-08-26 08:58:54,495 INFO L175 Difference]: Start difference. First operand has 301 places, 345 transitions, 746 flow. Second operand 3 states and 5078 transitions. [2023-08-26 08:58:54,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 348 transitions, 1182 flow [2023-08-26 08:58:54,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 348 transitions, 1182 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:54,515 INFO L231 Difference]: Finished difference. Result has 304 places, 348 transitions, 778 flow [2023-08-26 08:58:54,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3584, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=304, PETRI_TRANSITIONS=348} [2023-08-26 08:58:54,517 INFO L281 CegarLoopForPetriNet]: 456 programPoint places, -152 predicate places. [2023-08-26 08:58:54,517 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 348 transitions, 778 flow [2023-08-26 08:58:54,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1626.3333333333333) internal successors, (4879), 3 states have internal predecessors, (4879), 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) [2023-08-26 08:58:54,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:54,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:54,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:58:54,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 426 more)] === [2023-08-26 08:58:54,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash 779164750, now seen corresponding path program 1 times [2023-08-26 08:58:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:54,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041227456] [2023-08-26 08:58:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:54,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:58:54,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:54,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041227456] [2023-08-26 08:58:54,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041227456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:54,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:54,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:58:54,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595569673] [2023-08-26 08:58:54,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:54,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:58:54,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:54,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:58:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:58:54,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1658 out of 3584 [2023-08-26 08:58:54,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 348 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 1662.3333333333333) internal successors, (4987), 3 states have internal predecessors, (4987), 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) [2023-08-26 08:58:54,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:54,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1658 of 3584 [2023-08-26 08:58:54,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand