/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 INSUFFICIENT_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-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:21:13,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:21:13,993 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 19:21:13,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:21:13,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:21:14,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:21:14,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:21:14,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:21:14,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:21:14,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:21:14,016 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:21:14,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:21:14,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:21:14,017 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:21:14,018 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:21:14,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:21:14,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:21:14,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:21:14,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:21:14,020 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:21:14,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:21:14,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:21:14,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:21:14,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:21:14,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:21:14,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:21:14,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:21:14,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:21:14,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:21:14,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:21:14,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:21:14,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:21:14,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:21:14,339 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:21:14,339 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:21:14,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-08-25 19:21:15,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:21:15,544 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:21:15,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-08-25 19:21:15,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd50f5fff/bbb2f8ab0863478e8addd51f5a52e80e/FLAG64016e86b [2023-08-25 19:21:15,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd50f5fff/bbb2f8ab0863478e8addd51f5a52e80e [2023-08-25 19:21:15,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:21:15,563 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:21:15,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:21:15,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:21:15,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:21:15,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26fb6a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15, skipping insertion in model container [2023-08-25 19:21:15,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,581 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:21:15,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:21:15,721 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:21:15,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:21:15,766 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:21:15,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15 WrapperNode [2023-08-25 19:21:15,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:21:15,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:21:15,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:21:15,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:21:15,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,814 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 206 [2023-08-25 19:21:15,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:21:15,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:21:15,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:21:15,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:21:15,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:21:15,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:21:15,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:21:15,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:21:15,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (1/1) ... [2023-08-25 19:21:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:21:15,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:21:15,907 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 19:21:15,917 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 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:21:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:21:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:21:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:21:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:21:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:21:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:21:15,940 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 19:21:16,007 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:21:16,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:21:16,349 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:21:16,361 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:21:16,361 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:21:16,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:21:16 BoogieIcfgContainer [2023-08-25 19:21:16,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:21:16,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:21:16,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:21:16,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:21:16,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:21:15" (1/3) ... [2023-08-25 19:21:16,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13370a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:21:16, skipping insertion in model container [2023-08-25 19:21:16,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:15" (2/3) ... [2023-08-25 19:21:16,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13370a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:21:16, skipping insertion in model container [2023-08-25 19:21:16,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:21:16" (3/3) ... [2023-08-25 19:21:16,374 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2023-08-25 19:21:16,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:21:16,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 19:21:16,385 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:21:16,463 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:21:16,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 255 transitions, 526 flow [2023-08-25 19:21:16,582 INFO L124 PetriNetUnfolderBase]: 14/253 cut-off events. [2023-08-25 19:21:16,583 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:21:16,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 253 events. 14/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 445 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2023-08-25 19:21:16,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 255 transitions, 526 flow [2023-08-25 19:21:16,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 244 transitions, 500 flow [2023-08-25 19:21:16,608 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:21:16,620 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 244 transitions, 500 flow [2023-08-25 19:21:16,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 244 transitions, 500 flow [2023-08-25 19:21:16,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 244 transitions, 500 flow [2023-08-25 19:21:16,676 INFO L124 PetriNetUnfolderBase]: 14/244 cut-off events. [2023-08-25 19:21:16,676 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:21:16,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 244 events. 14/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 443 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2023-08-25 19:21:16,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 9396 [2023-08-25 19:21:21,551 INFO L134 LiptonReduction]: Checked pairs total: 25561 [2023-08-25 19:21:21,552 INFO L136 LiptonReduction]: Total number of compositions: 264 [2023-08-25 19:21:21,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:21:21,565 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;@485ce35c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:21:21,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-25 19:21:21,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:21:21,566 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:21:21,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:21:21,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:21,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:21:21,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:21,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash 951, now seen corresponding path program 1 times [2023-08-25 19:21:21,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:21,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19960559] [2023-08-25 19:21:21,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:21,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:21,630 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 19:21:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:21,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19960559] [2023-08-25 19:21:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19960559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:21:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698510140] [2023-08-25 19:21:21,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:21,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:21:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:21:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:21:21,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 519 [2023-08-25 19:21:21,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 128 flow. Second operand has 2 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 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 19:21:21,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:21,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 519 [2023-08-25 19:21:21,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:21,708 INFO L124 PetriNetUnfolderBase]: 161/358 cut-off events. [2023-08-25 19:21:21,709 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-25 19:21:21,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 358 events. 161/358 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1888 event pairs, 105 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 570. Up to 261 conditions per place. [2023-08-25 19:21:21,711 INFO L140 encePairwiseOnDemand]: 505/519 looper letters, 23 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2023-08-25 19:21:21,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 146 flow [2023-08-25 19:21:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:21:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:21:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 523 transitions. [2023-08-25 19:21:21,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5038535645472062 [2023-08-25 19:21:21,727 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 523 transitions. [2023-08-25 19:21:21,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 523 transitions. [2023-08-25 19:21:21,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:21,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 523 transitions. [2023-08-25 19:21:21,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 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 19:21:21,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 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 19:21:21,742 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 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 19:21:21,744 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 128 flow. Second operand 2 states and 523 transitions. [2023-08-25 19:21:21,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 146 flow [2023-08-25 19:21:21,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 138 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:21:21,748 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 92 flow [2023-08-25 19:21:21,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-08-25 19:21:21,755 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2023-08-25 19:21:21,755 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 92 flow [2023-08-25 19:21:21,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 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 19:21:21,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:21,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:21:21,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:21:21,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:21,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash 29714006, now seen corresponding path program 1 times [2023-08-25 19:21:21,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:21,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14433682] [2023-08-25 19:21:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:21,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:21,848 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 19:21:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14433682] [2023-08-25 19:21:21,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14433682] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:21,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:21,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373800671] [2023-08-25 19:21:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:21,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:21,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:21,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 519 [2023-08-25 19:21:21,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 19:21:21,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:21,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 519 [2023-08-25 19:21:21,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:21,932 INFO L124 PetriNetUnfolderBase]: 289/592 cut-off events. [2023-08-25 19:21:21,932 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 19:21:21,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 592 events. 289/592 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3012 event pairs, 86 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 1071. Up to 459 conditions per place. [2023-08-25 19:21:21,936 INFO L140 encePairwiseOnDemand]: 513/519 looper letters, 33 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2023-08-25 19:21:21,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 175 flow [2023-08-25 19:21:21,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 732 transitions. [2023-08-25 19:21:21,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701348747591522 [2023-08-25 19:21:21,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 732 transitions. [2023-08-25 19:21:21,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 732 transitions. [2023-08-25 19:21:21,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:21,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 732 transitions. [2023-08-25 19:21:21,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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 19:21:21,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:21,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:21,945 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 92 flow. Second operand 3 states and 732 transitions. [2023-08-25 19:21:21,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 175 flow [2023-08-25 19:21:21,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 175 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:21,947 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 107 flow [2023-08-25 19:21:21,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-08-25 19:21:21,948 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2023-08-25 19:21:21,948 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 107 flow [2023-08-25 19:21:21,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 19:21:21,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:21,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:21:21,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:21:21,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:21,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1509587170, now seen corresponding path program 1 times [2023-08-25 19:21:21,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:21,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562008079] [2023-08-25 19:21:21,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:21,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,015 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 19:21:22,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562008079] [2023-08-25 19:21:22,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562008079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042246632] [2023-08-25 19:21:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:22,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:22,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 519 [2023-08-25 19:21:22,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 19:21:22,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 519 [2023-08-25 19:21:22,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:22,104 INFO L124 PetriNetUnfolderBase]: 194/433 cut-off events. [2023-08-25 19:21:22,104 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 19:21:22,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 433 events. 194/433 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2175 event pairs, 48 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 787. Up to 304 conditions per place. [2023-08-25 19:21:22,106 INFO L140 encePairwiseOnDemand]: 513/519 looper letters, 27 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2023-08-25 19:21:22,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 174 flow [2023-08-25 19:21:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-08-25 19:21:22,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662813102119461 [2023-08-25 19:21:22,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-08-25 19:21:22,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-08-25 19:21:22,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:22,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-08-25 19:21:22,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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 19:21:22,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,112 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 107 flow. Second operand 3 states and 726 transitions. [2023-08-25 19:21:22,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 174 flow [2023-08-25 19:21:22,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:22,114 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 122 flow [2023-08-25 19:21:22,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-08-25 19:21:22,115 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2023-08-25 19:21:22,116 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 122 flow [2023-08-25 19:21:22,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 19:21:22,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:22,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:22,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:21:22,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:22,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:22,120 INFO L85 PathProgramCache]: Analyzing trace with hash 985889420, now seen corresponding path program 1 times [2023-08-25 19:21:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623786250] [2023-08-25 19:21:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,171 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 19:21:22,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623786250] [2023-08-25 19:21:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623786250] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967700125] [2023-08-25 19:21:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:22,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:22,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 519 [2023-08-25 19:21:22,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 19:21:22,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 519 [2023-08-25 19:21:22,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:22,246 INFO L124 PetriNetUnfolderBase]: 340/623 cut-off events. [2023-08-25 19:21:22,246 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-25 19:21:22,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 623 events. 340/623 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3180 event pairs, 90 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1270. Up to 299 conditions per place. [2023-08-25 19:21:22,248 INFO L140 encePairwiseOnDemand]: 515/519 looper letters, 47 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-08-25 19:21:22,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 265 flow [2023-08-25 19:21:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2023-08-25 19:21:22,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48233782915863843 [2023-08-25 19:21:22,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2023-08-25 19:21:22,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2023-08-25 19:21:22,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:22,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2023-08-25 19:21:22,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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 19:21:22,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,255 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 122 flow. Second operand 3 states and 751 transitions. [2023-08-25 19:21:22,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 265 flow [2023-08-25 19:21:22,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:22,256 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 132 flow [2023-08-25 19:21:22,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2023-08-25 19:21:22,257 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -16 predicate places. [2023-08-25 19:21:22,257 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 132 flow [2023-08-25 19:21:22,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 19:21:22,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:22,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:22,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:21:22,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:22,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1748019984, now seen corresponding path program 1 times [2023-08-25 19:21:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:22,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098449636] [2023-08-25 19:21:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,279 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 19:21:22,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098449636] [2023-08-25 19:21:22,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098449636] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:22,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574762873] [2023-08-25 19:21:22,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:22,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:22,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 519 [2023-08-25 19:21:22,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 19:21:22,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 519 [2023-08-25 19:21:22,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:22,345 INFO L124 PetriNetUnfolderBase]: 321/601 cut-off events. [2023-08-25 19:21:22,345 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-25 19:21:22,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 601 events. 321/601 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2983 event pairs, 85 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 1279. Up to 304 conditions per place. [2023-08-25 19:21:22,347 INFO L140 encePairwiseOnDemand]: 515/519 looper letters, 45 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-25 19:21:22,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 269 flow [2023-08-25 19:21:22,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2023-08-25 19:21:22,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.481053307642903 [2023-08-25 19:21:22,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 749 transitions. [2023-08-25 19:21:22,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 749 transitions. [2023-08-25 19:21:22,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:22,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 749 transitions. [2023-08-25 19:21:22,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 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 19:21:22,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,356 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 132 flow. Second operand 3 states and 749 transitions. [2023-08-25 19:21:22,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 269 flow [2023-08-25 19:21:22,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:22,357 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 142 flow [2023-08-25 19:21:22,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2023-08-25 19:21:22,358 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -15 predicate places. [2023-08-25 19:21:22,358 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 142 flow [2023-08-25 19:21:22,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 19:21:22,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:22,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:22,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:21:22,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:22,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2029714783, now seen corresponding path program 1 times [2023-08-25 19:21:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849426621] [2023-08-25 19:21:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:22,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,413 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 19:21:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849426621] [2023-08-25 19:21:22,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849426621] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:22,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501545045] [2023-08-25 19:21:22,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:22,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:22,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 519 [2023-08-25 19:21:22,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:22,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 519 [2023-08-25 19:21:22,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:22,487 INFO L124 PetriNetUnfolderBase]: 274/577 cut-off events. [2023-08-25 19:21:22,488 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-25 19:21:22,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 577 events. 274/577 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3193 event pairs, 125 based on Foata normal form. 12/485 useless extension candidates. Maximal degree in co-relation 1259. Up to 328 conditions per place. [2023-08-25 19:21:22,490 INFO L140 encePairwiseOnDemand]: 515/519 looper letters, 38 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2023-08-25 19:21:22,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 262 flow [2023-08-25 19:21:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2023-08-25 19:21:22,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48041104688503533 [2023-08-25 19:21:22,493 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2023-08-25 19:21:22,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2023-08-25 19:21:22,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:22,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2023-08-25 19:21:22,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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 19:21:22,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 519.0) internal successors, (2076), 4 states have internal predecessors, (2076), 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 19:21:22,497 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 142 flow. Second operand 3 states and 748 transitions. [2023-08-25 19:21:22,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 262 flow [2023-08-25 19:21:22,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:22,499 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 171 flow [2023-08-25 19:21:22,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-25 19:21:22,501 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -11 predicate places. [2023-08-25 19:21:22,501 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 171 flow [2023-08-25 19:21:22,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:22,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:22,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:22,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:21:22,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:22,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1677379691, now seen corresponding path program 1 times [2023-08-25 19:21:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:22,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627610729] [2023-08-25 19:21:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,710 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 19:21:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627610729] [2023-08-25 19:21:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627610729] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212249764] [2023-08-25 19:21:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:22,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:22,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:22,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 171 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:22,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:22,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:22,820 INFO L124 PetriNetUnfolderBase]: 304/668 cut-off events. [2023-08-25 19:21:22,821 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2023-08-25 19:21:22,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 668 events. 304/668 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3866 event pairs, 91 based on Foata normal form. 1/579 useless extension candidates. Maximal degree in co-relation 1533. Up to 306 conditions per place. [2023-08-25 19:21:22,823 INFO L140 encePairwiseOnDemand]: 514/519 looper letters, 46 selfloop transitions, 4 changer transitions 7/75 dead transitions. [2023-08-25 19:21:22,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 75 transitions, 350 flow [2023-08-25 19:21:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1185 transitions. [2023-08-25 19:21:22,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45664739884393063 [2023-08-25 19:21:22,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1185 transitions. [2023-08-25 19:21:22,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1185 transitions. [2023-08-25 19:21:22,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:22,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1185 transitions. [2023-08-25 19:21:22,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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 19:21:22,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:22,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:22,831 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 171 flow. Second operand 5 states and 1185 transitions. [2023-08-25 19:21:22,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 75 transitions, 350 flow [2023-08-25 19:21:22,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:22,835 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 189 flow [2023-08-25 19:21:22,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-08-25 19:21:22,836 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -5 predicate places. [2023-08-25 19:21:22,836 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 189 flow [2023-08-25 19:21:22,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:22,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:22,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:22,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:21:22,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:22,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1124394748, now seen corresponding path program 1 times [2023-08-25 19:21:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:22,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105696914] [2023-08-25 19:21:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:22,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:22,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:22,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105696914] [2023-08-25 19:21:22,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105696914] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:22,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:22,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:21:22,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208169672] [2023-08-25 19:21:22,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:22,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:21:22,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:21:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:21:22,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 519 [2023-08-25 19:21:22,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:22,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:22,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 519 [2023-08-25 19:21:22,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:23,183 INFO L124 PetriNetUnfolderBase]: 308/715 cut-off events. [2023-08-25 19:21:23,184 INFO L125 PetriNetUnfolderBase]: For 505/505 co-relation queries the response was YES. [2023-08-25 19:21:23,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 715 events. 308/715 cut-off events. For 505/505 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4332 event pairs, 66 based on Foata normal form. 14/678 useless extension candidates. Maximal degree in co-relation 1710. Up to 279 conditions per place. [2023-08-25 19:21:23,186 INFO L140 encePairwiseOnDemand]: 505/519 looper letters, 69 selfloop transitions, 19 changer transitions 10/116 dead transitions. [2023-08-25 19:21:23,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 116 transitions, 598 flow [2023-08-25 19:21:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 19:21:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 19:21:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2287 transitions. [2023-08-25 19:21:23,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44065510597302504 [2023-08-25 19:21:23,191 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2287 transitions. [2023-08-25 19:21:23,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2287 transitions. [2023-08-25 19:21:23,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:23,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2287 transitions. [2023-08-25 19:21:23,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 228.7) internal successors, (2287), 10 states have internal predecessors, (2287), 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 19:21:23,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 519.0) internal successors, (5709), 11 states have internal predecessors, (5709), 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 19:21:23,203 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 519.0) internal successors, (5709), 11 states have internal predecessors, (5709), 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 19:21:23,203 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 189 flow. Second operand 10 states and 2287 transitions. [2023-08-25 19:21:23,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 116 transitions, 598 flow [2023-08-25 19:21:23,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 116 transitions, 587 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:23,207 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 339 flow [2023-08-25 19:21:23,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=339, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2023-08-25 19:21:23,210 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2023-08-25 19:21:23,210 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 339 flow [2023-08-25 19:21:23,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:23,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:23,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:23,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:21:23,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:23,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1396286470, now seen corresponding path program 1 times [2023-08-25 19:21:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107086648] [2023-08-25 19:21:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:23,315 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 19:21:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:23,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107086648] [2023-08-25 19:21:23,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107086648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:23,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:23,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133025213] [2023-08-25 19:21:23,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:23,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:23,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:23,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 339 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:23,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:23,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:23,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:23,439 INFO L124 PetriNetUnfolderBase]: 306/708 cut-off events. [2023-08-25 19:21:23,439 INFO L125 PetriNetUnfolderBase]: For 940/984 co-relation queries the response was YES. [2023-08-25 19:21:23,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2086 conditions, 708 events. 306/708 cut-off events. For 940/984 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4311 event pairs, 181 based on Foata normal form. 8/679 useless extension candidates. Maximal degree in co-relation 2069. Up to 457 conditions per place. [2023-08-25 19:21:23,442 INFO L140 encePairwiseOnDemand]: 515/519 looper letters, 52 selfloop transitions, 2 changer transitions 12/84 dead transitions. [2023-08-25 19:21:23,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 84 transitions, 527 flow [2023-08-25 19:21:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1178 transitions. [2023-08-25 19:21:23,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45394990366088633 [2023-08-25 19:21:23,444 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1178 transitions. [2023-08-25 19:21:23,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1178 transitions. [2023-08-25 19:21:23,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:23,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1178 transitions. [2023-08-25 19:21:23,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.6) internal successors, (1178), 5 states have internal predecessors, (1178), 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 19:21:23,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:23,449 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:23,449 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 339 flow. Second operand 5 states and 1178 transitions. [2023-08-25 19:21:23,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 84 transitions, 527 flow [2023-08-25 19:21:23,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 84 transitions, 509 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:23,453 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 337 flow [2023-08-25 19:21:23,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=337, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2023-08-25 19:21:23,453 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2023-08-25 19:21:23,453 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 337 flow [2023-08-25 19:21:23,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:23,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:23,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:23,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:21:23,454 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:23,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1146603576, now seen corresponding path program 2 times [2023-08-25 19:21:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:23,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64106505] [2023-08-25 19:21:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:23,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:23,517 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 19:21:23,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:23,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64106505] [2023-08-25 19:21:23,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64106505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:23,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:23,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:23,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94209127] [2023-08-25 19:21:23,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:23,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:23,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:23,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:23,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:23,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:23,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:23,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:23,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:23,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:23,617 INFO L124 PetriNetUnfolderBase]: 251/641 cut-off events. [2023-08-25 19:21:23,618 INFO L125 PetriNetUnfolderBase]: For 824/842 co-relation queries the response was YES. [2023-08-25 19:21:23,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 641 events. 251/641 cut-off events. For 824/842 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3908 event pairs, 102 based on Foata normal form. 28/651 useless extension candidates. Maximal degree in co-relation 1800. Up to 241 conditions per place. [2023-08-25 19:21:23,621 INFO L140 encePairwiseOnDemand]: 512/519 looper letters, 59 selfloop transitions, 3 changer transitions 8/88 dead transitions. [2023-08-25 19:21:23,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 88 transitions, 560 flow [2023-08-25 19:21:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1184 transitions. [2023-08-25 19:21:23,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45626204238921003 [2023-08-25 19:21:23,623 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1184 transitions. [2023-08-25 19:21:23,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1184 transitions. [2023-08-25 19:21:23,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:23,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1184 transitions. [2023-08-25 19:21:23,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 236.8) internal successors, (1184), 5 states have internal predecessors, (1184), 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 19:21:23,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:23,628 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:23,628 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 337 flow. Second operand 5 states and 1184 transitions. [2023-08-25 19:21:23,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 88 transitions, 560 flow [2023-08-25 19:21:23,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 88 transitions, 548 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-25 19:21:23,632 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 353 flow [2023-08-25 19:21:23,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=353, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2023-08-25 19:21:23,632 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2023-08-25 19:21:23,632 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 353 flow [2023-08-25 19:21:23,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:23,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:23,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:23,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:21:23,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:23,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1721395686, now seen corresponding path program 2 times [2023-08-25 19:21:23,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:23,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001601132] [2023-08-25 19:21:23,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:23,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:23,766 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 19:21:23,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:23,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001601132] [2023-08-25 19:21:23,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001601132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:23,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:23,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:21:23,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733184044] [2023-08-25 19:21:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:23,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:21:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:23,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:21:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:21:23,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 519 [2023-08-25 19:21:23,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:23,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:23,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 519 [2023-08-25 19:21:23,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:23,927 INFO L124 PetriNetUnfolderBase]: 232/580 cut-off events. [2023-08-25 19:21:23,927 INFO L125 PetriNetUnfolderBase]: For 904/941 co-relation queries the response was YES. [2023-08-25 19:21:23,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 580 events. 232/580 cut-off events. For 904/941 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3385 event pairs, 52 based on Foata normal form. 17/574 useless extension candidates. Maximal degree in co-relation 1753. Up to 277 conditions per place. [2023-08-25 19:21:23,930 INFO L140 encePairwiseOnDemand]: 509/519 looper letters, 51 selfloop transitions, 14 changer transitions 15/98 dead transitions. [2023-08-25 19:21:23,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 98 transitions, 634 flow [2023-08-25 19:21:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:21:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:21:23,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2041 transitions. [2023-08-25 19:21:23,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43695140226932133 [2023-08-25 19:21:23,934 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2041 transitions. [2023-08-25 19:21:23,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2041 transitions. [2023-08-25 19:21:23,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:23,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2041 transitions. [2023-08-25 19:21:23,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 226.77777777777777) internal successors, (2041), 9 states have internal predecessors, (2041), 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 19:21:23,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 519.0) internal successors, (5190), 10 states have internal predecessors, (5190), 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 19:21:23,942 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 519.0) internal successors, (5190), 10 states have internal predecessors, (5190), 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 19:21:23,942 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 353 flow. Second operand 9 states and 2041 transitions. [2023-08-25 19:21:23,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 98 transitions, 634 flow [2023-08-25 19:21:23,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 98 transitions, 622 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:23,946 INFO L231 Difference]: Finished difference. Result has 82 places, 59 transitions, 358 flow [2023-08-25 19:21:23,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=358, PETRI_PLACES=82, PETRI_TRANSITIONS=59} [2023-08-25 19:21:23,946 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2023-08-25 19:21:23,946 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 59 transitions, 358 flow [2023-08-25 19:21:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:23,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:23,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:23,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:21:23,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:23,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1301918978, now seen corresponding path program 3 times [2023-08-25 19:21:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:23,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25807801] [2023-08-25 19:21:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:23,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:24,010 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 19:21:24,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25807801] [2023-08-25 19:21:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25807801] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:24,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79699958] [2023-08-25 19:21:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:24,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:24,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:24,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:24,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:24,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 59 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:24,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:24,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:24,131 INFO L124 PetriNetUnfolderBase]: 209/541 cut-off events. [2023-08-25 19:21:24,132 INFO L125 PetriNetUnfolderBase]: For 1001/1020 co-relation queries the response was YES. [2023-08-25 19:21:24,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1697 conditions, 541 events. 209/541 cut-off events. For 1001/1020 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3128 event pairs, 78 based on Foata normal form. 5/528 useless extension candidates. Maximal degree in co-relation 1676. Up to 210 conditions per place. [2023-08-25 19:21:24,134 INFO L140 encePairwiseOnDemand]: 514/519 looper letters, 45 selfloop transitions, 3 changer transitions 12/78 dead transitions. [2023-08-25 19:21:24,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 78 transitions, 542 flow [2023-08-25 19:21:24,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1177 transitions. [2023-08-25 19:21:24,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4535645472061657 [2023-08-25 19:21:24,136 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1177 transitions. [2023-08-25 19:21:24,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1177 transitions. [2023-08-25 19:21:24,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:24,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1177 transitions. [2023-08-25 19:21:24,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.4) internal successors, (1177), 5 states have internal predecessors, (1177), 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 19:21:24,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,140 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,140 INFO L175 Difference]: Start difference. First operand has 82 places, 59 transitions, 358 flow. Second operand 5 states and 1177 transitions. [2023-08-25 19:21:24,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 78 transitions, 542 flow [2023-08-25 19:21:24,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 498 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-25 19:21:24,144 INFO L231 Difference]: Finished difference. Result has 77 places, 54 transitions, 289 flow [2023-08-25 19:21:24,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=289, PETRI_PLACES=77, PETRI_TRANSITIONS=54} [2023-08-25 19:21:24,144 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2023-08-25 19:21:24,145 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 289 flow [2023-08-25 19:21:24,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:24,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:24,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:21:24,145 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:24,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 70369871, now seen corresponding path program 2 times [2023-08-25 19:21:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:24,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275628474] [2023-08-25 19:21:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:24,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:24,221 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 19:21:24,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:24,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275628474] [2023-08-25 19:21:24,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275628474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:24,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:24,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:24,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458222190] [2023-08-25 19:21:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:24,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:24,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:24,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:24,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:24,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:24,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:24,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:24,332 INFO L124 PetriNetUnfolderBase]: 174/455 cut-off events. [2023-08-25 19:21:24,332 INFO L125 PetriNetUnfolderBase]: For 644/672 co-relation queries the response was YES. [2023-08-25 19:21:24,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1344 conditions, 455 events. 174/455 cut-off events. For 644/672 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2477 event pairs, 48 based on Foata normal form. 9/446 useless extension candidates. Maximal degree in co-relation 1324. Up to 218 conditions per place. [2023-08-25 19:21:24,334 INFO L140 encePairwiseOnDemand]: 514/519 looper letters, 46 selfloop transitions, 4 changer transitions 12/80 dead transitions. [2023-08-25 19:21:24,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 80 transitions, 490 flow [2023-08-25 19:21:24,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1185 transitions. [2023-08-25 19:21:24,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45664739884393063 [2023-08-25 19:21:24,336 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1185 transitions. [2023-08-25 19:21:24,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1185 transitions. [2023-08-25 19:21:24,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:24,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1185 transitions. [2023-08-25 19:21:24,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 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 19:21:24,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,340 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,340 INFO L175 Difference]: Start difference. First operand has 77 places, 54 transitions, 289 flow. Second operand 5 states and 1185 transitions. [2023-08-25 19:21:24,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 80 transitions, 490 flow [2023-08-25 19:21:24,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 80 transitions, 468 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-25 19:21:24,346 INFO L231 Difference]: Finished difference. Result has 73 places, 50 transitions, 253 flow [2023-08-25 19:21:24,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=73, PETRI_TRANSITIONS=50} [2023-08-25 19:21:24,347 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2023-08-25 19:21:24,347 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 50 transitions, 253 flow [2023-08-25 19:21:24,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:24,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:24,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:21:24,348 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:24,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash 534563445, now seen corresponding path program 3 times [2023-08-25 19:21:24,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:24,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984793902] [2023-08-25 19:21:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:24,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:24,431 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 19:21:24,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:24,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984793902] [2023-08-25 19:21:24,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984793902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:24,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:24,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:24,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974644007] [2023-08-25 19:21:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:24,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:24,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:24,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:24,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 519 [2023-08-25 19:21:24,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 50 transitions, 253 flow. Second operand has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:24,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 519 [2023-08-25 19:21:24,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:24,562 INFO L124 PetriNetUnfolderBase]: 164/434 cut-off events. [2023-08-25 19:21:24,562 INFO L125 PetriNetUnfolderBase]: For 495/502 co-relation queries the response was YES. [2023-08-25 19:21:24,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 434 events. 164/434 cut-off events. For 495/502 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2303 event pairs, 82 based on Foata normal form. 1/412 useless extension candidates. Maximal degree in co-relation 1236. Up to 204 conditions per place. [2023-08-25 19:21:24,564 INFO L140 encePairwiseOnDemand]: 515/519 looper letters, 47 selfloop transitions, 3 changer transitions 7/75 dead transitions. [2023-08-25 19:21:24,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 450 flow [2023-08-25 19:21:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:24,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1179 transitions. [2023-08-25 19:21:24,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45433526011560693 [2023-08-25 19:21:24,566 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1179 transitions. [2023-08-25 19:21:24,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1179 transitions. [2023-08-25 19:21:24,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:24,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1179 transitions. [2023-08-25 19:21:24,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.8) internal successors, (1179), 5 states have internal predecessors, (1179), 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 19:21:24,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,570 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:24,570 INFO L175 Difference]: Start difference. First operand has 73 places, 50 transitions, 253 flow. Second operand 5 states and 1179 transitions. [2023-08-25 19:21:24,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 450 flow [2023-08-25 19:21:24,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 75 transitions, 425 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-25 19:21:24,572 INFO L231 Difference]: Finished difference. Result has 71 places, 50 transitions, 249 flow [2023-08-25 19:21:24,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=71, PETRI_TRANSITIONS=50} [2023-08-25 19:21:24,573 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2023-08-25 19:21:24,573 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 50 transitions, 249 flow [2023-08-25 19:21:24,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 19:21:24,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:24,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:24,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:21:24,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:24,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1506623400, now seen corresponding path program 3 times [2023-08-25 19:21:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028544367] [2023-08-25 19:21:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:24,706 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 19:21:24,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:24,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028544367] [2023-08-25 19:21:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028544367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:24,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:24,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:21:24,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067939619] [2023-08-25 19:21:24,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:24,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:21:24,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:24,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:21:24,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:21:24,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 519 [2023-08-25 19:21:24,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 50 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:24,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:24,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 519 [2023-08-25 19:21:24,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:24,812 INFO L124 PetriNetUnfolderBase]: 127/318 cut-off events. [2023-08-25 19:21:24,812 INFO L125 PetriNetUnfolderBase]: For 440/453 co-relation queries the response was YES. [2023-08-25 19:21:24,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 318 events. 127/318 cut-off events. For 440/453 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1491 event pairs, 24 based on Foata normal form. 13/313 useless extension candidates. Maximal degree in co-relation 920. Up to 139 conditions per place. [2023-08-25 19:21:24,814 INFO L140 encePairwiseOnDemand]: 509/519 looper letters, 29 selfloop transitions, 4 changer transitions 20/69 dead transitions. [2023-08-25 19:21:24,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 413 flow [2023-08-25 19:21:24,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:21:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:21:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1579 transitions. [2023-08-25 19:21:24,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43462703000275255 [2023-08-25 19:21:24,817 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1579 transitions. [2023-08-25 19:21:24,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1579 transitions. [2023-08-25 19:21:24,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:24,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1579 transitions. [2023-08-25 19:21:24,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 225.57142857142858) internal successors, (1579), 7 states have internal predecessors, (1579), 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 19:21:24,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 519.0) internal successors, (4152), 8 states have internal predecessors, (4152), 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 19:21:24,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 519.0) internal successors, (4152), 8 states have internal predecessors, (4152), 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 19:21:24,822 INFO L175 Difference]: Start difference. First operand has 71 places, 50 transitions, 249 flow. Second operand 7 states and 1579 transitions. [2023-08-25 19:21:24,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 69 transitions, 413 flow [2023-08-25 19:21:24,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 69 transitions, 408 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-25 19:21:24,824 INFO L231 Difference]: Finished difference. Result has 74 places, 42 transitions, 197 flow [2023-08-25 19:21:24,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=197, PETRI_PLACES=74, PETRI_TRANSITIONS=42} [2023-08-25 19:21:24,824 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2023-08-25 19:21:24,824 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 42 transitions, 197 flow [2023-08-25 19:21:24,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 19:21:24,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:24,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:24,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:21:24,825 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:24,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash 357089955, now seen corresponding path program 1 times [2023-08-25 19:21:24,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:24,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401810309] [2023-08-25 19:21:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:25,049 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 19:21:25,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401810309] [2023-08-25 19:21:25,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401810309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:25,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:25,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:25,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784395604] [2023-08-25 19:21:25,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:25,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:25,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:25,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:25,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 519 [2023-08-25 19:21:25,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 42 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 231.25) internal successors, (925), 4 states have internal predecessors, (925), 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 19:21:25,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:25,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 519 [2023-08-25 19:21:25,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:25,109 INFO L124 PetriNetUnfolderBase]: 102/263 cut-off events. [2023-08-25 19:21:25,109 INFO L125 PetriNetUnfolderBase]: For 320/329 co-relation queries the response was YES. [2023-08-25 19:21:25,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 263 events. 102/263 cut-off events. For 320/329 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1105 event pairs, 14 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 748. Up to 76 conditions per place. [2023-08-25 19:21:25,110 INFO L140 encePairwiseOnDemand]: 514/519 looper letters, 25 selfloop transitions, 4 changer transitions 12/57 dead transitions. [2023-08-25 19:21:25,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 57 transitions, 322 flow [2023-08-25 19:21:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1171 transitions. [2023-08-25 19:21:25,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.451252408477842 [2023-08-25 19:21:25,113 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1171 transitions. [2023-08-25 19:21:25,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1171 transitions. [2023-08-25 19:21:25,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:25,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1171 transitions. [2023-08-25 19:21:25,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 234.2) internal successors, (1171), 5 states have internal predecessors, (1171), 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 19:21:25,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:25,117 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:25,117 INFO L175 Difference]: Start difference. First operand has 74 places, 42 transitions, 197 flow. Second operand 5 states and 1171 transitions. [2023-08-25 19:21:25,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 57 transitions, 322 flow [2023-08-25 19:21:25,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 303 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-25 19:21:25,118 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 180 flow [2023-08-25 19:21:25,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2023-08-25 19:21:25,119 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-08-25 19:21:25,119 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 180 flow [2023-08-25 19:21:25,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 231.25) internal successors, (925), 4 states have internal predecessors, (925), 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 19:21:25,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:25,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:25,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:21:25,119 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 19:21:25,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1366116093, now seen corresponding path program 2 times [2023-08-25 19:21:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11087305] [2023-08-25 19:21:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:25,267 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 19:21:25,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:25,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11087305] [2023-08-25 19:21:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11087305] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468683010] [2023-08-25 19:21:25,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:25,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:25,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:25,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:25,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 519 [2023-08-25 19:21:25,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 231.25) internal successors, (925), 4 states have internal predecessors, (925), 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 19:21:25,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:25,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 519 [2023-08-25 19:21:25,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:25,314 INFO L124 PetriNetUnfolderBase]: 64/185 cut-off events. [2023-08-25 19:21:25,314 INFO L125 PetriNetUnfolderBase]: For 188/191 co-relation queries the response was YES. [2023-08-25 19:21:25,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 185 events. 64/185 cut-off events. For 188/191 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 705 event pairs, 14 based on Foata normal form. 1/174 useless extension candidates. Maximal degree in co-relation 539. Up to 56 conditions per place. [2023-08-25 19:21:25,315 INFO L140 encePairwiseOnDemand]: 514/519 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2023-08-25 19:21:25,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 256 flow [2023-08-25 19:21:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:25,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1160 transitions. [2023-08-25 19:21:25,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44701348747591524 [2023-08-25 19:21:25,317 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1160 transitions. [2023-08-25 19:21:25,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1160 transitions. [2023-08-25 19:21:25,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:25,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1160 transitions. [2023-08-25 19:21:25,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 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 19:21:25,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:25,322 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 519.0) internal successors, (3114), 6 states have internal predecessors, (3114), 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 19:21:25,322 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 180 flow. Second operand 5 states and 1160 transitions. [2023-08-25 19:21:25,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 256 flow [2023-08-25 19:21:25,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 46 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:25,323 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2023-08-25 19:21:25,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=519, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2023-08-25 19:21:25,324 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-08-25 19:21:25,324 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2023-08-25 19:21:25,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 231.25) internal successors, (925), 4 states have internal predecessors, (925), 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 19:21:25,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (38 of 39 remaining) [2023-08-25 19:21:25,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-08-25 19:21:25,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-08-25 19:21:25,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-08-25 19:21:25,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (14 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-08-25 19:21:25,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-08-25 19:21:25,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-08-25 19:21:25,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:21:25,332 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:25,336 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:21:25,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:21:25,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:21:25 BasicIcfg [2023-08-25 19:21:25,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:21:25,340 INFO L158 Benchmark]: Toolchain (without parser) took 9777.38ms. Allocated memory was 350.2MB in the beginning and 578.8MB in the end (delta: 228.6MB). Free memory was 326.1MB in the beginning and 399.9MB in the end (delta: -73.8MB). Peak memory consumption was 156.3MB. Max. memory is 16.0GB. [2023-08-25 19:21:25,340 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 350.2MB. Free memory was 328.1MB in the beginning and 328.0MB in the end (delta: 119.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:21:25,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.82ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 314.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 19:21:25,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 350.2MB. Free memory was 314.5MB in the beginning and 312.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:21:25,341 INFO L158 Benchmark]: Boogie Preprocessor took 31.66ms. Allocated memory is still 350.2MB. Free memory was 312.4MB in the beginning and 310.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:21:25,341 INFO L158 Benchmark]: RCFGBuilder took 515.90ms. Allocated memory is still 350.2MB. Free memory was 310.9MB in the beginning and 289.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 19:21:25,341 INFO L158 Benchmark]: TraceAbstraction took 8975.26ms. Allocated memory was 350.2MB in the beginning and 578.8MB in the end (delta: 228.6MB). Free memory was 289.4MB in the beginning and 399.9MB in the end (delta: -110.6MB). Peak memory consumption was 118.5MB. Max. memory is 16.0GB. [2023-08-25 19:21:25,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 350.2MB. Free memory was 328.1MB in the beginning and 328.0MB in the end (delta: 119.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 204.82ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 314.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 350.2MB. Free memory was 314.5MB in the beginning and 312.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.66ms. Allocated memory is still 350.2MB. Free memory was 312.4MB in the beginning and 310.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 515.90ms. Allocated memory is still 350.2MB. Free memory was 310.9MB in the beginning and 289.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 8975.26ms. Allocated memory was 350.2MB in the beginning and 578.8MB in the end (delta: 228.6MB). Free memory was 289.4MB in the beginning and 399.9MB in the end (delta: -110.6MB). Peak memory consumption was 118.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 237 PlacesBefore, 61 PlacesAfterwards, 244 TransitionsBefore, 58 TransitionsAfterwards, 9396 CoEnabledTransitionPairs, 8 FixpointIterations, 124 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 25 ConcurrentYvCompositions, 10 ChoiceCompositions, 264 TotalNumberOfCompositions, 25561 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15092, independent: 14548, independent conditional: 0, independent unconditional: 14548, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5417, independent: 5367, independent conditional: 0, independent unconditional: 5367, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15092, independent: 9181, independent conditional: 0, independent unconditional: 9181, dependent: 494, dependent conditional: 0, dependent unconditional: 494, unknown: 5417, unknown conditional: 0, unknown unconditional: 5417] , Statistics on independence cache: Total cache size (in pairs): 387, Positive cache size: 359, Positive conditional cache size: 0, Positive unconditional cache size: 359, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 346 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 420 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1434 IncrementalHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 14 mSDtfsCounter, 1434 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=11, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 273 NumberOfCodeBlocks, 273 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 1361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:21:25,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...